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ziro4ka [17]
2 years ago
8

Select all ratios equivalent to 20:5.

Mathematics
2 answers:
Anettt [7]2 years ago
4 0

The answer is : 40:10

<u>*multiply by 2</u>

<em>If helpful, brainliest please !</em>

<em />

OLga [1]2 years ago
4 0

Answer:

40:10 & 8:2

Step-by-step explanation:

20 * 2 = 40

5 * 2 = 10

8 * 2.5 = 20

2 * 2.5 = 5

2:1 does not work because only 2 * 10 = 20, but 1 *10 = 10 and there is no 10. There is only 5.

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42=-2d+6 I need help
sineoko [7]
<span>42=-2d+6

Here, to find d, you need to separate it on one side.
First, subtract 6 from both sides.

42-6 = -2d + 6 - 6
36 = -2d

Now divide both sides by -2.

36/-2 = -2/-2d
-18 = d

The answer to this problem is -18, or d = -18.</span>
5 0
3 years ago
Read 2 more answers
If a triangle is 12 inches high and has a 20 inch long hypotenuse then how wide is it?
Ber [7]

Answer:

The triangle should be 16 inches wide.

Step-by-step explanation:

\text {Use the Pythagorean Theorem to solve for the leg.}\\a^2 + b^2 =c^2

What we know:

  • One of the legs measures 12 inches.
  • The hypotenuse is 20 inches.

We need to solve for b. Solving for a while b is 12 would also be acceptable.

12^2 + b^2 = 20^2  \text {  OR  }   a^2 +12^2=20^2

We will use the first equation.

12^2 + b^2 = 20^2\\12 * 12 = 144\\20 * 20 = 400\\\\\boxed {144 + b^2 = 400}

\text {Subtraction property of equality: }\\144-144+ b^2 = 400-144\\\boxed {b^2 = 256}\\\\\text {Take the square root of 256: }\\\sqrt{256}=\sqrt{b^2} \boxed {16 = b}

The triangle should be 16 inches wide.

3 0
3 years ago
Whats the value of y help please
Aliun [14]

Answer:

25

Step-by-step explanation:

8 0
2 years ago
Find the area of the trapezoid.​
Lemur [1.5K]

Answer:

448

Step-by-step explanation:

A=((a+b)/2) h=(17+39)/2·16=448

8 0
2 years ago
A quadrilateral has three angles that measure 90 100 and 120 which is the measurement of the fourth angle
Lesechka [4]

Answer:

The final angle is 50

Step-by-step explanation:

All quadrilaterals have interior angles that add up to 360. So we can subtract these numbers from 360 to get the final angle.

360 - 90 - 100 - 120 = 50

6 0
3 years ago
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