Which of the following is a disadvantage to using equations? Check all that apply.
A.
Without a table or graph, you might forget what an equation represents.
B.
They have to be used alone.
C.
They are always the most difficult to use.
D.
Equations are not possible with complicated problems.
Answer:
Your correct answer is A. Without a table or graph, you might forget what an equation represents.
Step-by-step explanation:
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rewrite 18(26)using distributive property
The result of the expression 18(26) using the distributive property is 468
Given the product of integers 18(26), we are to write it using the distributive property.
Given 3 integers A, B and C
A(B+C) = AB + AC
This shows that the variable A was distributed over A and B
Applying this in the given question;
18(26) = 18 (20 + 6)
18(26) = 18 (20) + 18(6)
18(26) = 360 + 108
18(26) = 468
Hence the result of the expression 18(26) using the distributive property is 468
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?$$??? What is the ratio of question marks to dollar signs?
A refrigerator is priced at $525.50. There is a 6% sales tax rate. What is the sales tax for the refrigerator in dollars and cents?
Answer:
Sales tax for the refrigerator is $31.53.
Step-by-step explanation:
The price of a refrigerator = $525.50
Sales tax rate = 6%
Sales tax on the price of refrigerator = 6% × 525.50
= [tex]\frac{6}{100}[/tex] × 525
= 0.06 × 525.50
= $31.53
Sales tax for the refrigerator is $31.53.
When making a batch of orange juice for her basketball team, Jackie used 5 times as much water as concentrate. There were 32 more cups of water than concentrate. How much juice did she make in all?
She can make 48 cups juice
Further ExplanationOne variable linear equation is an equation that has a variable and the exponent number is one.
Can be stated in the form:
[tex]\large{\boxed{\bold{ax=b}}[/tex]
or
ax + b = c, where a, b, and c are constants, x is a variable
Whereas the two-variable linear equation is a linear equation that has 2 variables and the exponent is one
Can be stated in the form:
[tex]\large{\boxed{\bold{ax+bx=c}}}[/tex]
x, y = variable
Let x = cups of concentrate
w = cups of water
Jackie used 5 times as much water as concentrate.If we translate this sentence into equation:
w = 5x .. equation 1
There were 32 more cups of water than concentrate.If we translate this sentence into equation:
w = 32+x .. equation 2
We can make a comparison from equation 1 and 2
[tex]\displaystyle \frac{water}{concentrate} =5[/tex]
[tex]\displaystyle \frac{32+x}{x} =5[/tex]
[tex]\displaystyle 32+x=5x[/tex]
[tex]\displaystyle 32=4x[/tex][tex]\large{\boxed{x=8\:cups}}[/tex]
so x = concentrate = 8 cups
then water :
[tex]\displaystyle water={5\times8}[/tex]
water = 40 cups
Total juice she can make :
= 40 + 8 cups
= 48 cups
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Keywords : one variable, linear equation , juice, cups, concentrate, water
How can absolute value help you understand the size of a quantity? Give an example.
Maritza is thinking of a number that rounds to 4400 for the nearest ten and for the nearest hundred. What number might she be thinking of?
Jen buys 240 square feet of fabric. She can convert square feet to square yards by dividing the member of square feet by 9. How many square yards of fabric did Jen buy? (write the remainder as a fraction.)
Set up a proportion and solve. A car average 12 gallons of gasoline for each 420 miles driven. How much gasoline will it need for a 3,360 mile trip?
chad bought 8dozen note pads. divide equally into 6 boxes. how many note pads in each box
Chad bought 8 dozens of note pads, which totals 96 note pads. When he divides these into 6 boxes, each box will contain 16 note pads.
To solve the problem of dividing 8 dozen note pads equally into 6 boxes, we first need to know the total number of note pads Chad has. As one dozen is equal to 12 objects, Chad has 8 x 12 = 96 note pads. Then, we divide this total by the number of boxes to find out how many note pads go into each box.
So, 96 note pads / 6 boxes = 16 note pads per box.
Emily has a Springer Spaniel that weighs 48.5 pounds. She also has a Cocker Spaniel that weighs 24.8 pounds less than the Spaniel. How many pounds does the Cocker Spaniel weigh?
By subtracting the weight difference of 24.8 pounds from the Springer Spaniel's weight of 48.5 pounds, we determine that the Cocker Spaniel weighs 23.7 pounds.
Explanation:The question involves basic arithmetic, specifically subtraction, to solve for the weight of the Cocker Spaniel.
First, we need to start with the weight of the Springer Spaniel, which is given as 48.5 pounds. The Cocker Spaniel weighs 24.8 pounds less than the Springer Spaniel.
To find the weight of the Cocker Spaniel, we simply subtract:
48.5 pounds (Springer Spaniel's weight) - 24.8 pounds (difference in weight) = 23.7 pounds (Cocker Spaniel's weight)
Therefore, the Cocker Spaniel weighs 23.7 pounds.
Emily called the post office to find out about the shipping tubes that she could buy there. The person helping her told her that the tubes had a surface area of 455.28 square inches and a radius of 4.2 inches. What is the height of the tube? A. 54.2 inches B. 50 inches C. 150 inches D. 100 inches
To find the height of the tube with a given surface area and radius, use the formula for the surface area of a cylinder and solve for height.
Explanation:The surface area of a cylinder (A) is given by the formula:
A = 2πrh + 2πr²
Given: A = 455.28 in², r = 4.2 in
Substitute the values and rearrange the formula to solve for h:
455.28 = 2π(4.2)h + 2π(4.2)²
Calculate the height, h, to find the answer.
The height of the tube is B. 50 inches.
What is 2/4 times 8/11
How can polygons be considered a subcategory of two-dimensional figures?
write a real world problem that is represented by the division problem 38 ÷ 5 = 7 r3 in which it it it makes sense to round the quotient of 8
Answer: 38 and there would be more likely 1 less kid in each group
Step-by-step explanation:
just a quick question for fun........... a+12=10279 what's a?
The answer to this question is 10267.
The principal surveyed 200 students one what there favorite food is. The results showed that 125 of the students choose nachos as there favorite. What percentage of the students choose nachos? (PLEASE SHOW YOUR WORK)
there is a string of green and white lights strung around a mirror. For every 6 green lights there are 4 white. if there are 30 green lights, how many white lights are there
The problem is solved by setting up a ratio of green lights to white lights. Given 30 green lights, and knowing the ratio is 6 green lights for every 4 white lights (or 3:2), we find that there are 20 white lights.
Explanation:The problem can be solved by setting up a ratio. We know that for every 6 green lights, there are 4 white lights. Therefore the ratio of green lights to white lights is 6:4, or simplified to 3:2. Given that there are 30 green lights on the string, we can set up the equation (3/2 = 30/x), where x represents the number of white lights. Solving for x (multiplying both sides by 2 and then dividing both sides by 3) gives us x = 20. Therefore, there are 20 white lights on the string.
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The graph shows the cost for each lawn that is mowed.
What does the rate of change represent in this situation?
Select the choices to correctly complete the sentence.
The rate of change represents
A) The number of lawns moved for every 1 dollar
B) The cost for every 1 lawn moved
C) The amount of lawns moved every hour
The rate of change represents the cost per lawn mowed. which is the correct answer would be an option (B).
What is the average rate of change of the function?It quantifies how much the function changed per unit on average throughout that time interval. The slope of the straight line connecting the interval's ends on the function's graph is used to calculate it.
The graph is given in the question.
According to the given graph, we can see that the y-axis is labeled cost (dollars) and that the x-axis is labeled lawns mowed.
The rate of change of a graph is given by the y value divided by the x value.
As per this situation, the rate of change describes the cost per lawn mowed.
Therefore, the rate of change represents the cost per lawn mowed.
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155 students are going on a field trip. Each bus can carry 42 students. If every bus except the last one carry's as many students as possible, how many students will he last bus carry
explain how you know whether to add or subtract when you use the Distributive property to multiply
The distributive property of multiplication over addition can be used when you multiply a number by a sum. The distributive property lets you multiply a sum by multiplying each addend separately and then add the products:
[tex] a\cdot (b+c)=a\cdot b+a\cdot c. [/tex]
The distributive property of multiplication over subtraction can be used when you multiply a number by a difference. The property states that the product of a number and the difference of two other numbers is equal to the difference of the products:
[tex] a\cdot (b-c)=a\cdot b-a\cdot c. [/tex]
Therefore, you can see what sign is in the brackets, if sign is "+", then you have to add, if sign is "-", then you have to subtract.
The addition or subtraction in the distribution property depends on the sign between the two real numbers in the expression.
Further explanation:
The distributive property states that if a number [tex]a[/tex] is multiplied with the sum of the two numbers [tex]b[/tex] and [tex]c[/tex] then the result is same as if the numbers are multiplied separately.
[tex]\fbox{\begin\\\ \math a(b+c)=(a\cdot b)+(a\cdot c)\\\end{minispace}}[/tex] ....(1)
The distributive property states that if a number [tex]a[/tex] is multiplied with the difference of the two numbers [tex]b[/tex] and [tex]c[/tex] then the result is same as if the numbers are multiplied separately.
[tex]\fbox{\begin\\\ \math a(b-c)=(a\cdot b)-(a\cdot c)\\\end{minispace}}[/tex] ....(2)
For example: Consider [tex]5[/tex] as [tex]a[/tex], [tex]6[/tex] as [tex]b[/tex] and [tex]2[/tex] as [tex]c[/tex].
Substitute [tex]5[/tex] for [tex]a[/tex], [tex]6[/tex] for [tex]b[/tex] and [tex]2[/tex] as [tex]c[/tex] in the equation (1) as follows:
[tex]\begin{aligned}5(6+2)&=(5\cdot 6)+(5\cdot 2)\\5\cdot 8&=30+10\\40&=40\end{aligned}[/tex]
Now, substitute [tex]5[/tex] for [tex]a[/tex], [tex]6[/tex] for [tex]b[/tex] and [tex]2[/tex] as [tex]c[/tex] in the equation (2) as follows,
[tex]\begin{aligned}5(6-2)&=(5\cdot 6)-(5\cdot 2)\\5\cdot 4&=30-10\\20&=20\end{aligned}[/tex]
Therefore, the addition or subtraction in the distributive property is based on the sign between the two real numbers. If the sign between the real number is positive then the numbers are added and if the sign between the real number is negative then the numbers are subtracted.
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Answer details
Grade: Middle school
Subject: Mathematics
Chapter: Real numbers
Keywords: Distributive property, a(b+c)=ab+ac, a(b-c)=ab-ac, real numbers, positive value, negative value, multiply, add, sum, difference.
aisha would like to stack 3 shoe boxes on top of each other at the bottom of the closet.The height of each shoe box is 4/1.2 inches.What is the total height of the 3 boxes?
Please help 3m+5=8 show workk
Tabatha we shooting free throws in gym class she completed nine of the shots which was the third of four more than Joan completed what is the number of free throws the Joan completed
Julio is training for a marathon. He runs 34 miles the first week and 29 miles the next week. During the third week, he wants to run as many miles as he ran the first 2 weeks combined. He plans to run an equal number of miles during each of the 7 days of the week. How many miles will Julio run each day?
Kens plan is y= -200x + 2400
How do I solve it?
PLEASE I NEED AN ANSWER FAST!!!!James works in a flower shop, he will put 36 tulips in vases for wedding. He must use the same number of tulips in each phase the number of tulips in each phase must be greater than one in less than 10 how many tulips could be in each vase?
ms. emerson has a rectangular shelf that is 5 feet long and 3 feet wide. What is the area of the shelf
The area of rectangular shelf with length 5 feet and width 3 feet is 15 feet².
What is mean by Rectangle?A rectangle is a two dimension figure with 4 sides, 4 corners and 4 right angles. The opposite sides of the rectangle are equal and parallel to each other.
Given that;
The length of rectangular shelf = 5 feet
The width of rectangular shelf = 3 feet
We know that;
Area of rectangle = Length × Width
So, We get;
The area of rectangular shelf = 5 × 3
= 15 feet²
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Write a rule for the linear function in the graph.
A. y = -4x + 13
B. y = -4x – 13
C. y = 4x – 13
D. y = 1/4x – 13
Answer: The correct option is (C) [tex]y=4x-13.[/tex]
Step-by-step explanation: We are given to write a rule for the linear function given in the graph.
Since the graph is a straight line, so we are to find the equation of the line to find the rule.
From the graph, we note that
the points (3, -1) and (4, 3) lie on the straight line.
So, the slope of the line will be
[tex]m=\dfrac{3-(-1)}{4-3}\\\\\\\Rightarrow m=4.[/tex]
Since the line passes through the point (4, 3), so the equation of the line is given by
[tex]y-3=m(x-4)\\\\\Rightarrow y-3=4(x-4)\\\\\Rightarrow y=4x-16+3\\\\\Rightarrow y=4x-13.[/tex]
Thus, the required rule for the linear function is
[tex]y=4x-13.[/tex]
Option (C) is correct.
Problems that equal 3r12
The question, from the Physics subject for a High School grade level, involves calculating the equivalent resistance of three identical resistors in parallel. The equivalent resistance in this scenario is one third of a single resistor, represented as R/3.
Explanation:The question is regarding the equivalent resistance when three resistors are used in comparison to a single resistor. In the context given, if it is three times easier for current to flow through three identical resistors (R) than through a single one, the equivalent resistance is R/3. This is because resistors in parallel share the current, and hence the total resistance is divided by the number of resistors in parallel, if they are identical.
For example, if the current through three resistors in parallel is I, each resistor carries a current of I/3, and if they are identical, that means each has a resistance R. Therefore, the total current I flows through a resistance R/3, which is one third of the resistance faced by the current in the case of a single resistor.