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3 years ago

What is the basic ratio for 30:42

Mathematics

1 answer:

lianna [129]3 years ago

6 0

30:42 is represented as 30/42
The lowest form for that is 5/7. Hope that helped. Good luck

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What’s the answer to the question

hammer [34]

A maybe? I don’t know honestly

6 0

3 years ago

The diffrence of twice a number and 3 is -21

Alika [10]

Answer:

x = - 9

Step-by-step explanation:

Step 1:

2x - 3 = - 21 Equation

Step 2:

2x = - 18 Add 3 on both sides

Step 3:

- 18 ÷ 2 Divide

Answer:

x = - 9

Hope This Helps :)

8 0

3 years ago

Answer numbers 16-18

lana66690 [7]

Number 16- 216
number 17- 180
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4 0

3 years ago

If Usain Bolt can run a marathon (26.2) in 2 hours and 15 minutes, how fast would he run if he ran at the same constant rate?

inn [45]

Answer:

The speed of Usain Bolt is 0.194 miles per minutes to complete the marathon.

Step-by-step explanation:

Given as :

The Distance of marathon = 26.2 unit

The time taken to complete marathon = 2 hours and 15 minutes

= 120 + 15 = 135 minutes

Let The constant speed of Usain Bolt = S unit per minutes

So, Speed = $\frac{Distance }{Time}$

Or, S = $\frac{26.2 }{135}$

∴ S = 0.194 unit per minutes

Hence The speed of Usain Bolt is 0.194 miles per minutes to complete the marathon. Answer

8 0

3 years ago

Please help! Will mark Brainiest!

DochEvi [55]

Answer:

27.93 square yard

Step-by-step explanation:

For semicircle:

Radius (r) = 7 yards

For Triangle:

b = 2r = 2*7 = 14 yd

h = 7 yard

Area of shaded region = Area of semicircle - Area of triangle

$= \frac{1}{2} \times \pi {r}^{2} - \frac{1}{2} \times b \times h \\ \\ = \frac{1}{2} \times 3.14 \times {7}^{2} - \frac{1}{2} \times 14\times 7 \\ \\ = \frac{1}{2} \times 3.14 \times 49 - \frac{1}{2} \times 98\\ \\ = 3.14 \times 24.5 - 49 \\ \\ = 76.93 - 49 \\ \\ = 27.93 \: {yd}^{2} \\$

7 0

3 years ago