solve for Z.

3z - 5 = 2z + 2

Answers

Answer 1
The answer to your equation is z = 7

Related Questions

n the figure, 2004-02-04-06-00_files/i0250000.jpg. If the ratio of the perimeter of to that of is 3:2 and the sum of the perimeters of the two triangles is 110, find the perimeter of each triangle.
A.
perimeter of = 66
perimeter of = 44
B.
perimeter of = 73
perimeter of = 37
C.
perimeter of = 37
perimeter of = 73
D.
perimeter of = 44
perimeter of = 66

Answers

I assume you needed to add the diagram. However, I'll assume that we have triangle 1 and triangle 2 and solve the problem.
You can then follow the same steps on the triangles you have.
Let perimeter of triangle 1 be p1 and that of triangle 2 be p2

First, we know that the ratio between p1 : p2 is 3:2, this means that:
p1/p2 = 3/2
p1 = (3/2) p2 .............> equation I

We also know that the sum of perimeters is 110, this means that:
p1 + p2 = 110 .........> equation II

Substitute by equation I in equation II as follows:
(3/2) p2 + p2 = 110
(5/2) p2 = 110
p2 = 44

Substitute by p2 in equation I to get p1 as follows:
p1 = (3/2) (44) = 66

Therefore:
perimeter of triangle 1 = p1 = 66
perimeter of triangle 2 = p2 = 44

Answer:

Perimeter of triangle 1 = p1 = 66

Perimeter of triangle 2 = p2 = 44

With a speed of 55 mph, a driver drives through a tunnel in 1 minute. How long would it take him to get through the same tunnel with a speed of 45 mph?

Answers

it would take 11/9 of a minute
11/9 mins is correct

A translation of trapezoid PQRS (blue) to trapezoid P'Q'R'S' (green) is shown, where the location of Q' is the origin. The coordinates of point R' are

Answers

On USATestprep the answer is C) (c-a,-b)

The coordinates of point R' are (-c, b-d).

What is the translation?

A translation in math moves a shape left or right and/or up or down. The translated shapes look exactly the same size as the original shape, and hence the shapes are congruent to each other. They just have been shifted in one or more directions.

Given that, a translation of trapezoid PQRS (blue) to trapezoid P'Q'R'S' (green).

Translation rules:

When the shape is moved down by k units, then replace y with y - k.

So, the coordinates of point R' are (-c, b-d)

Therefore, the coordinates of point R' are (-c, b-d).

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A deposit of $94 positive or negative

Answers

a deposit would be positive because u r putting money back in
postitve. because postitve means yo9ur putting it in and negative would mean your short of something

Add. Simplify the answer to lowest terms before entering the numerator and denominator in their boxes. 11/16 + 3/16

Answers

Answer:

The answer is 7/8.

Step-by-step explanation:

If you add 11/16 to 3/16, you'll get 14/16.  14/16 has two numbers that are divisible by 2,  so when you divide 14/16 by 2 you'll get 7/8 which is 14/16 in a simplified form.  7 is prime and you can't divide it down any more, but 8 i'snt the same way.  The rule is, whatever you do to one side, you have to do to the other.  You can divide 8, but not 7; therefore, you cannot simplify the fraction any further.


Final answer:

To add fractions with the same denominator, simply add the numerators together, while keeping the denominator the same.

Explanation:

To add fractions with the same denominator, simply add the numerators together, while keeping the denominator the same. In this case, we have 11/16 + 3/16. The denominators are already the same, so we can add the numerators: 11 + 3 = 14. The fraction 14/16 cannot be simplified further.

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1/20=0.05. Which calculation is NOT a way to find 14/20?

a. 0.5+0.05

b. 0.75−0.05

c. 14÷20

d. 14·0.05

Answers

The calculation that is NOT a relevant way to find the value of 14/20 is given by option a: 0.5 + 0.05.

Let's find the value of 14/20 first:

To find 14/20, divide 14 by 20:

14 ÷ 20 = 0.7

Now, let's check each calculation:

a. 0.5 + 0.05 = 0.55 (Not relevant to finding 14/20)

b. 0.75 - 0.05 = 0.7 (Relevant, as this gives us 14/20)

c. 14 ÷ 20 = 0.7 (Relevant, as this is the correct calculation for 14/20)

d. 14 × 0.05 = 0.7 (Relevant to finding 14/20)

Therefore, the calculation that is NOT a way to find 14/20 is option a: 0.5 + 0.05.

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Estimate the value of 9.9 squared x 1.79

Answers

Final answer:

To estimate the value of 9.9 squared times 1.79, round 9.9 to 10, square it to get 100, and multiply by 1.79 to get an estimate of 179.

Explanation:

The question asks to estimate the value of 9.9 squared times 1.79. To estimate this value, we can round 9.9 to the nearest whole number, which is 10. Then we square 10 to get 100, and multiply this by 1.79.

So, the estimated value would be:

102 × 1.79 = 100 × 1.79 = 179

This estimation approach uses basic arithmetic principles and rounding techniques to simplify the calculation.

During a day a student spends 7 hours sleeping, ¹/4 of the day studying and of the time travelling. What fraction of the day is left for other things?

Answers

Answer:

[tex]\dfrac{5}{24}[/tex]

Step-by-step explanation:

Time Spent Sleeping=7  hoursTime Spent Studying=[tex]\frac{1}{4}[/tex] of the dayTime Spent Travelling=[tex]\frac{1}{4}[/tex] of the day

There are 24 hours in a day, therefore:

Time Spent Studying=[tex]\frac{1}{4}[/tex] X 24 =6 HoursTime Spent Travelling=[tex]\frac{1}{4}[/tex] X 24 =6 Hours

The total hour used for sleeping, studying and travelling=7+6+6=19 hours

Hours used for other things=24-19=5 hours

Therefore, the fraction of the day used for other things=[tex]\dfrac{5}{24}[/tex]

Why do you subtract exponents when dividing powers with the same base

Answers

Answer:

[tex]\displaystyle\frac{x^r}{x^s} = x^{r-s}[/tex]

Step-by-step explanation:

The quotient rule of exponential power states that:

[tex]\displaystyle\frac{x^r}{x^s} = x^{r-s}[/tex]

This can be easily understood with the help of an example:[tex]\displaystyle\frac{x^4}{x^2} = \displaystyle\frac{x\times x\times x\times x}{x\times x}  = x^2 = x^{4-2}[/tex]

Basically, this quotient rule helps us to reducing the fractions. Since the numerator and the denominator is same as we have same base, we could simply subtract the powers to get the answer as illustrated in the above example.

When dividing powers with the same base, subtracting exponents simplifies the expression due to the quotient of powers rule is [tex]a^m / a^n = a^{(m - n).[/tex]

When dividing powers with the same base,  subtract the exponents because of the properties of exponents.

The rule is known as the "quotient of powers" rule, and it states that when you divide two powers with the same base,

subtract the exponents to simplify the expression.

The rule can be stated as follows:

[tex]a^m / a^n = a^{(m - n).[/tex]

Here's why this rule works,

Let's say you have a number 'a' raised to two exponents 'm' and 'n':

[tex]a^m[/tex]= a × a × a ×... (m times)

[tex]a^n[/tex] = a × a × a × ... (n times)

Now, to divide these two powers, cancel out the common factors:

[tex]a^m / a^n[/tex] = (a × a × a ×... ... × a) / (a × a × a ×...... × a)

In the numerator and denominator, there are 'm' and 'n' occurrences of 'a', respectively.

Since we are dividing, we can cancel out 'n' occurrences of 'a' from the numerator and denominator:

[tex]a^m / a^n[/tex] = (a × a × a ×... ... × a) / (a × a × a ×...... × a)

          = [tex]a^{(m - n)[/tex]

Therefore, when divide powers with the same base, subtract the exponents to simplify the expression and apply this property of exponents.

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I need to know what does untethers mean

Answers

release or free from a tether.

0.009842 in scientific notation

Answers

0.009842 in scientific notation is 9.842^-3
Hi there. You multiply a number greater than 1, but less than 10 by a power of 10. But because this is in decimal form, you have to do it by negative powers. In this case, you would move the decimal to the left 3 times. 10^-1 power is equivalent to 0.001 and 9.842 * 0.001 would give you 0.009842. That decimal in scientific notation is 9.842 * 10^-3

90 points!! Forreal!

What is the justification for each step in the solution of the equation?
−2(x−1)+12=4x−6
Select from the drop-down menus to correctly justify each step
-2(x-1)+12=4x-6 - (GIVEN)
-2+2+12=4x-6 - ______ ?
-2x+14=4x-6 - (COMBINE LIKE TERMS)
-2x=4x-20 - ________ ?
-6x=-20 - (ADDITON OR SUBTRACTION OF EQUALITY)
x=20/6 - _____ ?
x=10/3 - (SIMPLIFY)

Answers

distribution, property of subtraction, property of division

Distributive Property

Addition or Subtraction Property of Equality

Multiplication or Division Property of Equality

What is 1920 divided by 12

Answers

1920 divided by 12 is 160
1920 divided by 12 is 160

What's 140,250 rounded to the nearest 100,000

Answers

the answer is 100,000
1 2 3 4 5 6 7 8 9 10 11 12 13 14

the answer would be....


100,000
because if the number is less than five,
you round down,
and if the number is five or more,
you round up!
(EXAMPLE: 150,300 rounded to the nearest 100,000 would be 200,000)
Hope i helped! :)

find −3(2.5−k)+0.5(7+8k)

Answers

The solution to the problem is: x = (-2, -3)
First, distribute the parentheses:
(-3 * 2.5) + (-3 * -k) + (.5 * 7) + (.5 * 8k)
-7.5 + 3k + 3.5 + 4k

Combine like terms:
(-7.5 + 3.5) + (3k + 4k)
-4 + 7k

I don't see an equal sign so it's not an equation, just an algebraic expression, which means that the answer is -4 + 7k

what is 29.5 multiplied 2.6

Answers

29.5 multiplied with 2.6 is is 76.7
the answer is 76.7 do to 29.5 times the number 2.6

20 points
please help

in return brainliest and special thanks

Answers

The answer is B (2,4)

You have 4 dimes, 5 quarters, and 3 pennies in your pocket. What is the probability of reaching in and randomly picking out a dime or a quarter? Express your answer as a fraction in lowest terms.

Answers

You have 12 coins all together. 4 dimes + 5quarters which equals 9 . So 9 out of 12 will be with a dime or quarter

The probability of picking a dime or a quarter is 3/4

What is probability?

Probability is a number that expresses the likelihood or chance that a specific event will take place. Both proportions ranging from 0 to 1 and percentages ranging from 0% to 100% can be used to describe probabilities.

Given, you have 4 dimes, 5 quarters, and 3 pennies in your pocket.

There are a total of 4 + 5 + 3 = 12 coins in your pocket.

The probability of picking a dime or a quarter can be calculated as the sum of the probability of picking a dime and the probability of picking a quarter. Since the coins are selected randomly, each coin has an equal chance of being picked.

The probability of picking a dime is 4/12 or 1/3, since there are 4 dimes in the pocket out of a total of 12 coins.

The probability of picking a quarter is 5/12, since there are 5 quarters in the pocket out of a total of 12 coins.

Therefore, the probability of picking a dime or a quarter is:

P(dime or quarter) = P(dime) + P(quarter)

P(dime or quarter) = 4/12 + 5/12

P(dime or quarter) = 9/12

P(dime or quarter) = 3/4

So the probability of picking a dime or a quarter is 3/4, or three-fourths.

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A computer store bought a program at a cost of 20$ and sold it at a selling price of 24$ find the percent markup

Answers

The markup was 20%.

Markup percentage = price difference/original price

First, subtract the new price from the original. 
$24 - $20 = $4 

Second, divide the price difference by the original price. 
$4/$20 = .20 

Turn decimal into percentage by moving it to the right twice or multiplying by 100.

.20*100 = 20%

You can check it by multiplying the original cost by 20% then adding it to the original cost.

20*.20 = $4  ,   20+4 = $24 (current price)


solve the equation 20x-5y=10 for y

Answers

Add 5y to the opposite side.
20x = 5y + 10
Minus 10 to the opposite side.
20x - 10 = 5y
Divide everything by 5 to get the value of y.
4x - 2 = y

Hope that helped! :)
Hello,

First of all, if you want "y" by itself, let's move "20x" to the other side. In order to do that, we need to subtract "20x" from that side and then also subtract "20x" to the other side. After you do the subtraction, the equation should be simplified to: -5y = 10 - 20x.

Then, now to get "y" by itself, you need to get rid of "-5". And to get rid of "-5", you need to do the opposite of multiplying by "-5", which is dividing. After you divide to the left side, "-5" cancels each other out and you are only left with "y" on that side. Now, you nee to divide "5x" to the right side. 

After you individually divide "-5" to the 10 and 20x, your answer should be:
y = -2 + 4x. Hope this helps. =)

Use doubles to find the sum of 7+8

Answers

by my knowing rhe answer is 31

A marble is drawn at random from the bag shown below. The bag contains 3 green, 4 yellow, 5 blue, and 8 pink marbles.What is P(not pink)?

Answers

Answer: [tex]\dfrac{3}{5}[/tex]

Step-by-step explanation:

Given : The number of pink marbles in bag= 8

Total number of marbles in bag= [tex]4+5+8+3=20[/tex]

Now, the number of marbles that are not pink =[tex]20-8=12[/tex]

We know that the formula to find the probability is :-

[tex]\dfrac{\text{Favorable outcomes}}{\text{Total outcomes}}[/tex]

Similarly, [tex]\text{P(not pink)}=\dfrac{12}{20}=\dfrac{3}{5}[/tex]

zack made this table for his survey? grape 16, orange 10, berry 9, apple 12 how many votes were cast?

Answers

there were 47 votes that were cast

Three hikers equally shared gallon of water. Explain how you would use an area model to find the amount of water each hiker drank.

Answers

you would find out how many ounces are in a gallon is and devide it by 3

Answer:

Draw a square and shade half of it. Then draw 2 lines to divide the square into 3 equal parts. There will be one shaded piece in each group, and there are 6 pieces total, so the answer is 1

6

of a gallon.

Step-by-step explanation:

$14.30 watch ; 6 3/4% sales tax

Answers

$14.30 watch ; 6 3/4% sales tax $15.27
If your figuring out the total, it will be $21.05

the quotient of a and c is 8. The product of a and c is 2. The quotient of a and b is -16. The product of a and b is -1. The quotient of b and c is -0.5. What is value of a,b, and c?

Answers

Final answer:

To find the values of a, b, and c, we can use the given information and solve the system of equations.

Explanation:

To find the values of a, b, and c, we can use the given information and solve the system of equations.

From the first two statements, we have a/c = 8 and a*c = 2. This allows us to solve for a and c.

Similarly, from the next two statements, we have a/b = -16 and a*b = -1. Using these equations, we can find the values of a and b.

Finally, the last statement gives us b/c = -0.5, and we can use this equation to find the value of c.

Substituting the appropriate values for a, b, and c, we find that a = 1, b = 0.0211, and c = -0.0211.

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Idk what the properties are I need help

Answers

associative,commutative and distributive

does the point given below occur on the line shown. Can you show the work please

Answers

No it doesn't. 2*0.5 + 5*0 = 1, not 19

You have $12 to buy five goldfish for your new fish tank. Write and solve an inequality that represents that prices you can pay per fish.

Answers

Final answer:

The prices you can pay per fish can be represented by the inequality 5x ≤ 12. After solving the inequality, the maximum price you can pay per fish is $2.40.

Explanation:

To write the inequality that represents the prices you can pay per fish, let's assume that the price of each goldfish is 'x' dollars. Since you have $12 in total, the inequality can be written as:

5x ≤ 12

To solve this inequality, divide both sides by 5:

x ≤ 2.4

Therefore, you can pay at most $2.40 per fish.

You borrowed $25 from your mom to buy close a week later you repaid her $13 write an expression to show how much money you owe

Answers

If you subtract 13 from 25 you will get your answer which is 12
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