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Verizon [17]
3 years ago
5

A stack of 20 coins contains only nickels and

Mathematics
1 answer:
Galina-37 [17]3 years ago
7 0

Answer:

16 quarters and 4 nickels

4×25=1.00 × 4 = 4.00 4×4=16-quarters

20-16=4-nickels

Step-by-step explanation:

Hope this helps!

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Natalia is joining an online music service that charges a monthly membership fee of $5.95. A tax of 9% is applied to the monthly
Delicious77 [7]

Awnser:

Natalie Spent $59.54 on songs after 5 months at online music service.

Step-by-step explanation:

Given:

Total membership cost =$14.99

Number of songs purchased in each month = 9

Cost per song = $0.99

We need to find total amount she had spent after 5 months.

Solution:-

So First we will Number of songs purchased in 5 months.

1 month = 9 songs

So in 5 months = Songs purchased in 5 months.

By Using Unitary method we get;

Songs purchased in 5 months =

Now Also Given:

1 song = $0.99

45 songs = Cost for 45 songs.

Again by using Unitary method we get;

Cost for 45 songs =

No Total Amount Natalie spent after 5 months is equal to Total membership cost plus Cost of songs purchased in 5 months.

framing in equation form we get;

Total Amount Natalie spent =

Hence Natalie Spent $59.54 on songs after 5 months at online music service.

8 0
3 years ago
Pablo makes $23 each day raking leaves. About how much money does Pablo make in one week?
VMariaS [17]
Multiply $23 by 7. The answer is $161.

3 0
3 years ago
What is the surface area of this cylinder ?
Lana71 [14]

Answer:

87.92 mm²

Step-by-step explanation:

Given:

  • Radius of circular base: 2 millimeters
  • Height of cylinder: 5 millimeters

<u>It should be noted:</u>

  • Surface area of cylinder: 2πrh + 2πr²       (R = Radius; H = Height)

When the measures are substituted, we get the following expression:

  • ⇒ 2π(2)(5) + 2π(2)²

Multiply the constants and substitute π as 3.14.

  • ⇒ 20π + 2π(4)
  • ⇒ 20π + 8π
  • ⇒ 20(3.14) + 8(3.14)

Finally, simplify the expression to determine the surface area.

  • ⇒ 20(3.14) + 8(3.14)
  • ⇒ 62.8 + 25.12
  • ⇒ 87.92 mm²
8 0
2 years ago
The lengths in feet of three pieces of timber are 48, 72, and 40. The sawmill operator needs to cut the timber into logs of equa
olya-2409 [2.1K]
<h3>Therefore she can cut 8 feet long log.</h3>

Step-by-step explanation:

Given,

The lengths in feet of three pieces of timber are 48,72 and 40. The sawmill operator needs to cut the timber into logs of equal length with no waste.

The HCF of 48 , 72 and 40 is =8

Therefore she can cut 8 feet long log.

3 0
3 years ago
Write the rules for determining the sign of the product when multiplying integers. Then, write (4 points)
borishaifa [10]

While multiplying a negative and another negative integer, the product's will be positive. While multiplying a positive and another positive integer, the product will be positive. It means that of the integers have same sign, then their product's sign will be positive. But, if the integers have different signs, i.e., one of them is positive and the other is negative, then the product will have negative sign.

While dividing a negative from another negative integer, the quotient will be positive. While dividing a positive from another positive integer, the quotient will be positive. It means that of the integers have same sign, then their quotient's sign will be positive. But, if the integers have different signs, i.e., one of them is positive and the other is negative, then the quotient will have negative sign.

6 0
3 years ago
Read 2 more answers
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