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3 years ago

HEELP I'll give brainliest

Mathematics

1 answer:

andrey2020 [161]3 years ago

7 0

Answer:

28.3

Step-by-step explanation:

12/20 = 17/x

cross multiply

12x=340

divide each side by 12

x=28.3333333333.......

round it to nearest tenth

28.3

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10x2 + 99x – 5) ÷ (x + 10) = ?

artcher [175]

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3 years ago

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Kitty [74]

Answer:

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Step-by-step explanation:

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3 years ago

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Can anyone help? It’s not 14, I’ll give Brainly + 15 pts

Julli [10]

Short side length = x

Medium side = x + 7

Long side = 5x

Total 49, so

x + x + 7 + 5x = 49

If you combine like terms:

7x + 7 = 49

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3 years ago

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qwelly [4]

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Step-by-step explanation:

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3 years ago

A circular plate has circumference 21.4 inches. What is the area of this plate? Use 3.14 for pi.

Brut [27]

Answer:

The area of this plate is $36.31\ \text{inches}^2$ .

Step-by-step explanation:

We have,

Circumference of a circular plate, C = 21.4 inches

The circumference of a circular shape is given by :

$C=2\pi r$

r is radius of circular shape

$r=\dfrac{C}{2\pi}\\\\r=\dfrac{21.4}{2\times 3.14}\\\\r=3.4\ \text{inches}$

Area of this plate is given by :

$A=\pi r^2\\\\A=\pi (3.4)^2\\\\A=36.31\ \text{inches}^2$

So, the area of this plate is $36.31\ \text{inches}^2$ .

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3 years ago

HEELP I'll give brainliest ​

HEELP I'll give brainliest