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3 years ago

Your friend says "Multiplying a number by 5 is a 500% increase" Describe and correct the error in your friend's reasoning.

1 answer:

7 0

An increase is adding, not multiplying. they meant that 5 times a number is 500% of something. it would be a 400% increase as one plus four is five.

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I just need all the numbers on top in feet on the graph please

sattari [20]

Answer:

2.5, 5, 7.5

Step-by-step explanation:

Count.

3 0

3 years ago

A 40 inch board is to be cut into three pieces so that the second price is 4times as long as the first piece and the third piece

Anastasy [175]

Answer:

Step-by-step explanation:

Givens

Let the first piece be x

Let the second piece 4x

Let the third piece = 5x

Total length = 40 inches.

Equation

x + 4x + 5x = 40 Combine

Solution

10x = 40 Divide by 10

10x/10 = 40/10

x = 4

Answer

The smallest piece (x) = 4

The middle piece 4x = 4*4 = 16

The largest piece 5x= 5 * 4 = 20

3 0

1 year ago

What is the value of a1 of the geometric series? Sigma-Summation Underscript n = 1 Overscript infinity EndScripts 12 (negative o

worty [1.4K]

Answer:

Step-by-step explanation:

The given geometric series is

$\sum_{n = 1}^{ \infty} 12( { - \frac{1}{9} })^{n - 1}$

We want to determine the first term of this geometric series.

Recall that the explicit formula is

$a_{n} = 12( { - \frac{1}{9} })^{n - 1}$

To find the first term, we put n=1 to get:

$a_{1} = 12( { - \frac{1}{9} })^{1 - 1}$

This gives us:

$a_{1} = 12( { - \frac{1}{9} })^{0}$

$a_{1} = 12(1) = 12$

Therefore the first term is 12

6 0

3 years ago

Read 2 more answers

A group of friends were working on a student film. They spent all their budget on props and costumes. They spent $243 on props,

SVETLANKA909090 [29]

Answer:

The total budget for their student film was $540

Step-by-step explanation:

The total percentage of any quantity is 100%

∵ A group of friends was working on a student film

∵ They spent all their budget on props and costumes

∴ The total budget of the props and costumes = 100%

∵ They spent $243 on props

∵ They spent 55% of the total budget on costumes

→ Find the percentage of the props

∴ The percentage of the props = 100% - 55%

∴ The percentage of the props of the total budget = 45%

→ That means 45% of the total budget = 243

∵ 45% × total budget = 243

→ Change the percent to a number by divide it by 100

∵ 45% = 45 ÷ 100 = 0.45

∴ 0.45 × total budget = 243

→ Divide both sides by 0.45

∴ The total budget = 540

∴ The total budget for their student film was $540

4 0

3 years ago

Read 2 more answers

65 trees in town park..38 are apple. How many oak

ch4aika [34]

Answer:

27 oak trees

Step-by-step explanation:

6 0

3 years ago