Renna pushed the button for the elevator to go up, but it would not move. The weight limit for the elevator is 450 kilograms, but the current group of passengers weighs a total of 750 kilograms. Renna wants to determine how many 70-kilogram passengers need to get off the elevator.
Let p represent the number of excess passengers. Write an inequality to determine the number of passengers who need to get off the elevator to meet the weight requirement.
The difference between the square of two numbers is five. Twice the square of the second number is subtracted from three times the square of the first number is 19. Find the numbers. Please show work. The difference between the square of two numbers is five. Twice the square of the second number is subtracted from three times the square of the first number is 19. Find the numbers. Please show work.
The two possible pairs of numbers that fit the given equations are (√7, 2) and (-√7, -2). We find these by setting up two equations based on the provided conditions and solving them simultaneously.
Explanation:Let's denote the first number as 'x' and the second number as 'y'. We have two equations from the given information:
1. x² - y² = 5
2. 3x² - 2y² = 19
We can solve these equations simultaneously to find the values of 'x' and 'y'. The first step in solving a system of linear equations is to multiply the equations by what's needed to get the coefficients of one of the variables to match, so it can be eliminated when the equations are added or subtracted. Let's multiply the first equation by 3 and the second equation by 1. We then have:
3x² - 3y² = 15
3x² - 2y² = 19
If we subtract the second equation from the first, we get:
-y² = -4
which leads to y = 2 or y = -2 (squared numbers are always positive). Substituting '2' for 'y' in the first original equation, we find that x = √7 or x = -√7. Therefore, the possible pairs of numbers are (√7, 2) and (-√7, -2).
Learn more about Simultaneous Equations here:https://brainly.com/question/30319215
#SPJ12
The decimal number 0.66 is an example of a repeating decimal.
True
or
False
pls answer quick
Answer:
the anwser is FALSE
Step-by-step explanation:
please help me with this problem thanks!
Mrs. Curtis wants to buy online tickets for a concert. Two options are given here.
Option 1: $53 for each ticket plus a shipping fee of $10
Option 2: $55 for each ticket and free shipping
What is a system of equations to represent the costs of the tickets?
Express your equations in the form of y=mx+by=mx+b where x is the number of tickets purchased and y is the total cost.
Option 1:______________
Option 2: ______________
Geometry help please! ty
Can you explain to me how to find the area of rectangles and triangles on a coordinate plane? Images below...
divide 56 in a ratio of 5:3
Solve (x 6)(x - 4) = -16
Answer:
{-4, 2} Original poster forgot to add the + sign
Step-by-step explanation:
Solve (x + 6)(x - 4) = -16
{-4, 6}
{-4, 2}
{-12, 22}
Odyssey
20 is 50% of what number? If necessary, round to the nearest tenth.
Is it 10.0?
20 is 50 percent of the number 40.
What is percentage?Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".
Let 20 is 50% of the number x.
Now, 50% of x=20
0.50×x=20
0.5x=20
x=20/0.5
x=40
Therefore, 20 is 50 percent of the number 40.
To learn more about the percentage visit:
brainly.com/question/24159063.
#SPJ6
What is 117.28 rounded to the nearest 10 cents?
Give the excluded value(s) for the following fraction.
y+5/y^2+4y-32
Answer:
y is -8 and 4.
Step-by-step explanation:
(1.8 * 10^2) * (5 * 10^2)
It takes ten identical pieces to form a circular track for a pair of toy racing cars. If the inside arc of each piece is 3.4 inches shorter than the outside arc, what is the width of the track? ...?
To find the width of the track, add up the lengths of all the inside and outside arcs and subtract the total length of the inside arcs from the total length of the outside arcs.
Explanation:To find the width of the track, we first need to determine the difference between the inside and outside arcs of each piece. Let's assume the outside arc has a length of A inches. According to the question, the inside arc is 3.4 inches shorter than the outside arc. Therefore, the inside arc has a length of A - 3.4 inches.
Since there are ten identical pieces forming the circular track, we can add up the lengths of all the inside arcs and all the outside arcs to find the total distance covered by the track. The width of the track is then the difference between the total length of the outside arcs and the total length of the inside arcs.
Let's express the width of the track as a function of A. The total length of the outside arcs is 10A inches, and the total length of the inside arcs is 10(A - 3.4) inches. Therefore, the width of the track is:
Width = 10A - 10(A - 3.4) inches.
Learn more about Width of the track here:https://brainly.com/question/19532051
#SPJ3
The formula c=5/9(f-32) is used to convert the temperature in degrees fahrenheit (
f. to the temperature in degrees celsius (
c. what is the temperature in degrees celsius (
c. that is equal to 113 degrees fahrenheit (
f.?
The conversion of fahrenheit to degree celsius for f = 113 is 45 degree celsius
What is a mathematical expression?
When we combine numbers and variables in a valid way, using operations such as addition, subtraction, multiplication, division, exponentiation, and other operations and functions as yet unlearned, the resulting combination of mathematical symbols is called a mathematical expression.
Given, formula of temperature conversion of degree celsius to fahrenheit
c=5/9(f-32)
If f = 113
then putting the value on the equation, we get
c = 5/9(113-32)
c = 5/9(81)
c = 5*9
c = 45 degree celsius
Therefore, The conversion of fahrenheit to degree celsius for f = 113 is 45 degree celsius
Read more about mathematical expression at :
https://brainly.com/question/10413253
#SPJ5
Given g(x)=x^2-7x+1/4 show that the least possible value of g(x) is -12
If martha earns $3.25 per hour for baby-sitting, how much will she earn in: 2.5 hours? 4.0 hours? 5.5 hours?
Answer: Martha will earns for 2.5 hours of baby sitting [tex]\approx\$8.13[/tex]
She will earns for 4.0 hours of baby sitting =[tex]\$13[/tex]
She will earns for 5.5 hours of baby sitting =[tex]\approx\$17.88[/tex]
Step-by-step explanation:
Given: Martha earns for each hour of baby sitting = $3.25
Then, Martha will earns for 2.5 hours of baby sitting =[tex]2.5\times3.25=\$8.125\approx\$8.13[/tex]
She will earns for 4.0 hours of baby sitting =[tex]4.0\times3.25=\$13[/tex]
She will earns for 5.5 hours of baby sitting =[tex]5.5\times3.25=\$17.875\approx\$17.88[/tex]
whats 64 divided by 8
Answer: 8
Step-by-step explanation:
Step 1: eight times one equals eight. Eight times two equals 16, as you keep multiplying, you'll eventually get to 8 times 8 equals 64. To find 64 divided by 8, you find the other "piece" which be what makes 8 times the number equal to 64. :)
4. which property is illustrated by the following statement?
2x(6)=(6)2x
A. associative property of addition
B. communtative property of multiplication
C. inverse property of multiplication
D. communtative property of addition
5. which property is illustrated by the following statement?
5g+7=7+5g
A. communtative property of multiplication
B. Inverse property of multiplication
C. communtative property of addition
D. associative property of addition
The answer for #5 is C.
What is the range of possible values for x? The diagram is not to scale.?
Answer:
Range : 0° < x < 17°
Step-by-step explanation:
In any triangle, the smallest angle is opposite to the smallest side.
So, In ΔABD , the side which faces ∠ABD is AD whose length is 22 units.....(1)
And, in ΔCBD, the side which faces ∠CBD is CD whose length is 30 units....(2)
Now, from equations (1) and (2) We get,
∠ABD < ∠CBD
So, ∠ABD lies between 0° to 34°
[tex]\Rightarrow 0 < 2\cdot x<34\\\Rightarrow 0<x<\frac{34}{2}\\\Rightarrow0<x<17[/tex]
∴ Range of x is 0° to 17°
Answer:
Range : 0° < x < 17°
Step-by-step explanation:
In any triangle, the smallest angle is opposite to the smallest side.
So, In ΔABD, the side which faces ∠ABD is AD whose length is 22 units.....(1)
And, in ΔCBD, the side which faces ∠CBD is CD whose length is 30 units....(2)
Now, from equations (1) and (2) We get,
∠ABD < ∠CBD
So, ∠ABD lies between 0° to 34°
∴ Range of x is 0° to 17°
If the sum of the measures of the interior angles of a convex polygon is 2160o, how many sides does the polygon have?
help :(
Which situations can be represented by a linear function?
Select each correct answer.
a. Every year, Luisa puts $10 into her savings account.
b. Every day, the number of bacteria in the dish is 3 times what it was the previous day.
c. A country's population increases by 0.8% each year.
d. The barrel leaks 0.5 L of water each day.
The barrel leaks 0.5 L of water each day.
Every year, Luisa puts $10 into her savings account.
If a 16 in. by 24 in. picture has a wooden frame "x" in. wide surrounding it, what equation can be used to find the total area of the picture and frame? ...?
If all four interior angles of quadrilateral P have the same measure, which of the following statements must be true?
1. All sides of P have equal length.
2. The diagonals of P are perpendicular.
3. The measure of each interior angle of P is 90 degrees.
Thanks in advance! ...?
this year 90 students signed up for the group Talent contest if all the groups have the same number of students how many groups could be formed
a. 4 or 5 groups
b. 5 or 6 groups.
c. 4 or 6 groups
d. 4 or 9 groups
the product of two integers is -21. the diference between the two integers is -10. the sum of the two integers is 4. what are the two integers
Kevin, while calculating his tax adjustments, notes that he can make adjustments of $3,435 for contributions to his retirement plan, $3,393 for business losses, and $1,128 for business expenses. If Kevin’s gross income is $45,942, what is his adjusted gross income?
a. $53,898
b. $40,242
c. $41,421
d. $37,986
Answer: Option 'D' is correct.
Step-by-step explanation:
Since we have given that
Amount of Kevin's gross income = $45942
Amount he contribute to his retirement plan = $3435
Amount he lost in business losses = $3393
Amount he incurred in business expenses = $1128
So, His adjusted gross income will be
[tex]45942-(3435+3393+1128)\\\\=45942-(7956)\\\\=\$37986[/tex]
Hence, his adjusted gross income is $37,986.
Hence, Option 'D' is correct.
What is the leg length of an isosceles right triangle with a hypotenuse of 32 inches?
For the fruit punch, keira needed 2 gallons of grape juice. she already had 2 quarts of grape juice. grape juice comes in bottles of 1 pint. how many bottles of grape juice does she need to buy? bottles
What is the value of the discriminant in the equation shown below?
x^2+3x-6=0
...?
Discriminant = b^2 - 4ac
a = 1
b = 3
c = -6
3^2 - 4(1x-6)
9 - (4 x -6 )
9 - -24 = 33
Therefore it has 2 real roots
Which of the following would you round and estimate to a sum of 11?
3.41 + 8.051
3.65 + 7.992
4.25 + 8.103
4.89 + 7.431
Answer:
3.41+8.051
Step-by-step explanation: