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3 years ago

How Can A Ratio Be solved (I still dont get it)

1 answer:

5 0

In the unknown ratio, you only know one of the numbers. To solve for the unknown number, set up a proportion with the known ratio on one side and the unknown ratio on the other, cross multiply, and solve the resulting equation.

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Four times the square of a non-zero number is equal to twelve times the number.

Whitepunk [10]

4x^2 = 12x
4x^2 - 12x = 0
4x(x - 3) = 0

4x = 0
x = 0...not this one

x - 3 = 0
x = 3 <== ur number

4 0

3 years ago

There are 1800 gym members in total 3/4 are aged 25-59 1/5 are over 60 and the rest are under 25 how many members are under 25

skad [1K]

90 members are under 25 years old

7 0

3 years ago

20 points help help help

mrs_skeptik [129]

The perimeter of the shape is 94 cm and the area is 462 sq cm.

Step-by-step explanation:

Given,

The radius (r) = 14 cm

To find the area and perimeter of the given shape.

The given shape is $\frac{3}{4}$ of the full circle.

Formula

The perimeter of the circle = 2πr

The perimeter of the given shape = $\frac{3}{4}$ (2πr)+r+r = $\frac{3}{4}$ (2πr)+2r

The area of the circle = πr²

Now,

The perimeter of the given shape = $\frac{3}{4}$ (2× $\frac{22}{7}$ ×14)+2×14 = 94 cm

The area of the given shape = $\frac{3}{4}$ (πr²)

= $\frac{3}{4}$ × $\frac{22}{7}$ ×14² = 462 sq cm

7 0

3 years ago

Read 2 more answers

Divide. Give the quotient and remainder. 4,918/7

Strike441 [17]

Answer:

702 r4

Step-by-step explanation:

Ⓗⓘ ⓣⓗⓔⓡⓔ

4918/7=702 r4

You could do it with either a calculator or by simple division.

(っ◔◡◔)っ ♥ Hope this helped! Have a great day! :) ♥

Please, please give brainliest, it would be greatly appreciated, I only need one more before I advance, thanks!

7 0

3 years ago

Write the formula for the volume of a square prism, V = s-h, in terms of h. Then find the height h of a square prism with volume

vodomira [7]

Answer:

$h = \frac{3V}{s^2}$

height (h) = 5 cm

Step-by-step explanation:

Volume of prism in terms of h (height):

$V = \frac{1}{3}s^2h$

$V = \frac{s^2h}{3}$

Multiply both sides by 3

$V*3 = \frac{s^2h}{3}*3$

$3V = s^2h$

Divide both sides by s^2

$\frac{3V}{s^2} = \frac{s^2h}{s^2}$

$\frac{3V}{s^2} = h$

$h = \frac{3V}{s^2}$

Find height (h) given V = 60 cm³ and side length (s) = 6 cm. Plug the values into the formula above:

$h = \frac{3(60)}{6^2}$

$h = \frac{180}{36}$

$h = 5$

Height = 5 cm

6 0

3 years ago