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3 years ago

The question is in the picture.

Mathematics

1 answer:

Bess [88]3 years ago

3 0

Answer:

Henry

Step-by-step explanation:

Henry is wrong before in the second step he didn't distribute properly. He multiply 5 · x but didn't multiply 5 · -2

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One year, the population of a city was 322,000. Several years later it was 273,700 find the percent decrease

Ahat [919]

Answer:

15% decrease

Step-by-step explanation:

First - 322,000

Years later - 273,700

Therefore, (322000 - 273700)/322000 = 0.15

0.15 * 100 = 15%

Mark me brainliest :))

7 0

3 years ago

What's the prime factor of 4, + -1? Testing

andrew-mc [135]

The prime factor is 3

7 0

3 years ago

Read 2 more answers

The skateboard rita would like to buy costs 6

Ray Of Light [21]

The amount saved by Rita is $25.

Given that, the skateboard Rita wants to buy is 6 dollars less than 3 times the amount she has saved. The skateboard is 69 dollars.

<h3>What is an equation?</h3>

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

Let the unknown number be x.

Now, 3x-6=69

⇒ 3x=75

⇒ x=75/3

⇒ x= 25

Therefore, the amount saved by Rita is $25.

To learn more about an equation visit:

brainly.com/question/14686792.

#SPJ1

"Your question is incomplete, probably the complete question/missing part is:"

The skateboard Rita wants to buy is 6 dollars less than 3 times the amount she has saved. The skateboard is 69 dollars. How much has Rita saved.

4 0

1 year ago

The cylinders are similar the volume of the larger cylinder is 1600 cubic centimeters what is the volume of the smaller cylinder

cestrela7 [59]

We are given Volume of the larger cylinder is = 1600 cubic centimeters.

Height of the larger cylinder = 16 cm.

We know formula of volume of a cylinder V= $\pi r^2h$ , where r is the radius of cylinder, h is the height of the cylinder.

Plugging value of V and h of larger cylinder, we get

$1600=\pi r^2(16).$

Dividing both sides by 16, we get

$\frac{1600}{16}=\frac{\pi r^2 (16)}{16}$

$r^2=100$

Taking square root on both sides, we get

r=10.

Therefore, radius of the larger cylinder is 10 cm.

We are given cylinders are similar .

<u>Note: The radii and heights of similiar cylinders are in same ratio.</u>

Therefore, we can setup a proportion:

Let us take radius of small cylinder is x.

$\frac{x}{10}=\frac{4}{16}$

$\frac{x}{10}=\frac{1}{4}$

Multiplying both sides by 10, we get

$10 \times \frac{x}{10}=10 \times\frac{1}{4}$

x=2.50.

Therefore, radius of the small cylinder = 2.5 cm.

Now, plugging radius =2.5 and height = 4 in the formula of volume the cylinder, we get

$V=\pi (2.5)^2(4)=\pi (6.25)(4) =25 \pi \ cm^3.$

Therefore, correct option is 25 pi cm^3.

8 0

3 years ago

The sum of three consecutive is -120. What are the three integers?

olga_2 [115]

Answer:

-30 -40 -50

are the integers...

5 0

3 years ago