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Blizzard [7]
3 years ago
11

Chris received a $90.00 check for his birthday. The check was for 5 more than twice the amount of the check that he got last yea

r for his birthday. How much money did Chris receive last year for his birthday? (1 point) $85.00 $42.50 $50.50 $47.50
Mathematics
2 answers:
kobusy [5.1K]3 years ago
8 0
The easiest way to figure out a simpler math problem like this is to look at all of the answers.

Look at all of the answers and see which one times 2 is 5 less than 90.

A.) 85.00 ---->  85 x 2 = 170 (Nope)
B.) 42.50 ----> 42.50 x 2 = 85 (Yep)
C.) 50.50 ----> 50.50 x 2 = 101 (Nope)
D.) 47.50 ----> 47.50 x 2 = 95 (Nope)

That means the correct answer is $42.50

Hope this helps!
vodomira [7]3 years ago
3 0
The answer to this question is 42.50
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A sphere is inscribed in a cube with a surface area of 216 square centimeters. What is the volume of the sphere
pentagon [3]

Answer:

V=298.5cm^3

Step-by-step explanation:

To find the volume of the sphere we need to know its radius.

And the radius can be found with the information we have about the surface area.

The formula for the surface area is as follows:

SA=4\pi r^2

from this formula we clear the radius r:

r^2=\frac{SA}{4\pi}\\ \\r=\sqrt{\frac{SA}{4\pi} }

and we substitute the known value of the surface area, and also the value of \pi:

r=\sqrt{\frac{216cm^2}{4(3.1416)} }\\ \\r=\sqrt{\frac{216cm^2}{12.5664} }\\ \\r=\sqrt{17.1887cm^2}\\ \\r=4.146cm

and now that we know the radius we find the volume:

V=\frac{4\pi r^3}{3} \\\\V=\frac{4(3.1416)(4.146cm)^3}{3}\\ \\V=\frac{895.521cm^3}{3}\\ \\V=298.5cm^3

the volume of the sphere is 298.5cm^3

7 0
3 years ago
If the degree of a polynomial function is even and the leading coefficient is negative, then the end behavior of the function is
-Dominant- [34]

Answer:

Its the last option.

Step-by-step explanation:

The function will  rise from the left and descend to the right.

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2 years ago
Answer and shown work for 5x + y = 10 -x - y = -2
konstantin123 [22]
Solve first equation for y: 
5x+y=10
y=10-5x. Plug this equation into second equation

-x-(10-5x)=-2
-x-10+5x=-2
4x=8
x=2 (plug x into first equation)

5(2)+y=10
y=0
4 0
3 years ago
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How do you find perimeter of a rectangle?
Paha777 [63]
You add the numbers of all 4 sides. 
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3 years ago
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Furkat [3]

Answer:

114

Step-by-step explanation:

that's supplementary

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