MATHEMATICS MIDDLE SCHOOL

vicky has a 50 inch roll of ribbon. she uses 3 feet of the ribbon to wrap a gift. how many inches of ribbon does she have left?

Answers

Answer 1
Answer: 3 feet = 36 inches50 inches - 36 inches = 14 inches:)

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Stephen's glass holds 40 milliliters of milk. Farrah's glass holds 2/5 as much milk. How much milk does Farrah's glass hold?

Answers

Farrah's glass holds 16 milliliters of milk. That is 2/5 the amount Stephen's glass holds.

  40 divided by 5 is 8 and 8 times 2 is 16

A bakery offers a small circular cake with a diameter of 6 inches. It also offers a large circular cake with a diameter of 18 inches. Complete the explanation for wether the top of the large cake has three times the area that of the small cake. The area of the top of the large cake is ____ pie in2 and that of the small cake is ______ pie in2. The top of the cake has an area equal to _____ times that of the small cake.

Answers

Answer:

The area of the top of the large cake is 254.34 in2 and the small cake is 28.26 in2. The top of the large cake has an area equal to 9 times that of the small cake.

Step-by-step explanation:

Area of a circle is TTr^2 (TT is pi).

Large cake: 3.14x9^2=254.34

Small cake: 3.14x3^2=28.26

254.34/28.26=9

Answer:

  • The area of the small cake is 81π in 2.
  • The area of the large cake is 9π in2.
  • The top of the large cake has an area equal to 9 times that of the small cake.

Step-by-step explanation:

Find the area of the small cake in terms of π.

A = πr2                       Use the formula.

A = π(3)2                    Substitute. Use 3 for r.

A = π × 9               Evaluate the power.

Find the area of the top of the large cake in terms of π.

A = πr2                        Use the formula.

A = π(9)2                     Substitute. Use 9 for r.

A = π × 81                 Evaluate the power.

Find how much larger the area of the top of the large cake is compared to the area of the small cake.

81π ÷ 9π = 9

As a salesperson, you are paid $100 per week plus $3 per sale. This week you want your pay to be at least $160. Write an inequality for the number of sales you need to make, and describe the solutions.

Answers

Answer:

100 +3s≥ 160

You must sell as least 20 items

Step-by-step explanation:

You make 100 plus 3 dollars per sale

100 +3s

It must be at least 160

100 +3s≥ 160

Now we need to solve to see how many sales

100 +3s≥ 160

Subtract 100 from each side

100-100 +3s≥ 160-100

3s≥ 60

Divide each side by 3

3s/3≥60/3

s≥20

You must sell as least 20 items

The cost for a certain music plan is $9.99 per year plus $0.25 per song you downloaded. If you paid $113.74 one year, find the number of songs you downloaded

Answers

They downloaded 415 songs. You can find this solution if you subtract 9.99 from 113.74 then divide that answer by 0.25
I would first add  9.99 and 0.25 then subtract 113.74-1024 which was total to 9.99 0.25 which would give you your awnser of 123.5

Are 4/16 equivalent to 0.25

Answers

0.25= 25/100

25/100 = 5/20= 1/4

4/16 = 1/4

It is equivalent

Hope I helped! (Pick me as brainliest!)
Well lets see first lets simplify the equation the 4/16 = 2/8 and 2/8 = 1/4 if we put this fraction into the decmil form it is 0.25. If you have more questions like these with numbers going into 100 what i mean is if you have 1/2 make put the demonanator into 100 so you can make that a decmil too it will be easier In all IT IS EQUIVLENT :-) hope this helped
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