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Katyanochek1 [597]
4 years ago
10

the first week she earned 3 times as much as she earned the second week.The second week she earned twice as much as she earned t

he thrid week.If Sarah earned $36 the first week of babysitting how much money did she earn the thrid week.
Mathematics
1 answer:
ser-zykov [4K]4 years ago
5 0
$6. 

You can get this by dividing the original number by 3 and then the new answer by 2. 
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How many sides does a regular polygon have if its interior angles are 150
jok3333 [9.3K]
180(# of sides - 2) divided by the # of sides is equal to the degree of its interior angle. 
So 12 sides. 
3 0
3 years ago
I need help with what is x 4x=20
Elodia [21]

Answer:

5

Step-by-step explanation:

You are looking for x so what you are really looking for is what times 4 =20 and that is 5.

5x4=20

3 0
3 years ago
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Using the equation y = 3x – 5, what would the output be for an input of -4?
tino4ka555 [31]

Answer:

your question is really not clear but if you were to put the -4 in the Y then the answer would be X=1/3, if you plug in -4 for X and find Y then Y = -17

Step-by-step explanation:

plug in -4 in Y

-4=3x-5 add 5 on both sides,

1 = 3x divide 3 on both sides

1/3= x

plug in -4 in X

y = 3(-4)-5 multiply 3 and -4 = -12

y = -12-5 subtract the -12 and -5 = -17

y = -17

3 0
4 years ago
There is 1000cm3 of aluminum available to cast a trophy that will be in the shape of a right square pyramid. Is this enough alum
stealth61 [152]

The 1000 cubic centimeters of aluminium is enough for aluminium a trophy  that will be in the shape of a right square pyramid and has a base edge of 10 cm and a slant height of 13 cm.

Step-by-step explanation:

The given is,

                    Volume of aluminium available is 1000 cubic centimeters

                    Shape of trophy is right square pyramid

                    Trophy has a base edge of 10 cm and slant height of 13 cm

Step:1

                     Formula for volume of right square pyramid,

                                               Volume, V = a^{2}\frac{h}{3}.....................................(1)

                     Where, a - Base edge value

                                  h - Height of pyramid

                      From given,

                                        a = 10 cm

                                        h = 13 cm

                      Equation (1) becomes,

                                           = 10^{2}(\frac{13}{3}  )

                                           = (100)(4.333)

                                           = 433.33 cm^{3}

             Volume of trophy = 433.33 cubic centimeters

             Compare with the volume of available aluminium and volume of right square pyramid,                          

            Volume of available aluminium > Volume of right square pyramid

                                               1000 cm^{3} > 433.33 cm^{3}

            So, the given volume of aluminium is enough to make right square pyramid shaped trophy.

Result:

          The 1000 cubic centimeters of aluminium is enough for aluminium a trophy  that will be in the shape of a right square pyramid and has a base edge of 10 cm and a slant height of 13 cm.

6 0
3 years ago
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What is the point of origin on a number line
s344n2d4d5 [400]
(0,0) is the origin
Hope that helps
8 0
4 years ago
Read 2 more answers
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