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denis23 [38]
3 years ago
9

Find the value of y when x = 10, if y = 35 when x = 7.

Mathematics
2 answers:
olga55 [171]3 years ago
8 0

Set up a proportion:

y = 35 when x = 7

y = ? when x = 10

To get x from 7 to 10, you have to multiply by \frac{10}{7}. Therefore, you do the same to 35, and you get:

35 \times \frac{10}{7} = 50

And your answer is 50 :)

Anvisha [2.4K]3 years ago
7 0

In this example, we know that x = 10 when y = 35 so the first set of coordinates are as followed.

(10) (35) =

We want to know the value of y when x is equal to 7, so our other coordinates will be as followed.

(10) (35) = (7) (Y)

Now, we can simplify by multiplying.

10 × 35 = 350

7 × y =  7y

Now, we have

<h2>350 =7y</h2><h2>÷7     ÷7   ← divide by 7 on both sides</h2><h2 /><h2>50 = y</h2><h2 />

Therefore, the value of Y when X = 7 is Y = 50.

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a= (y2 - y1)/(x2 - x1) = (50 mi/h - 30 mi/h)/(1/6h - 0h) = 20*6mi/(h*h) = 120mi/h^{2}

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So if v is differentiable, then there is a time T between 0h and 1/6h where v(T) = 120mi/h^{2}

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3 years ago
100m world record was completed at an average speed of 37.6 km/h. work out this speed in meters per second?
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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

5 0
3 years ago
What is 78.32+6.784?
IceJOKER [234]

Answer: 85.104

Step-by-step explanation: Adding decimals is something you will use a lot. Take the time to learn it now. So when you are adding decimals there are some important things to keep in mind. 1. Line the decimals up. Let me explain. Lets do a example. Lets say its 14.5+ 15.74. The first thing you would need to do is line them up like this-->

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After you do that, Do you see a black space next to the 14.5? When adding decimals this is a big nono. So what you can do is add a 0. Adding a zero is only applicable when you have one number that has 1 more number(its my best way to explain it).( so like you would add a zero if your equation was like 23.5 +18.99. but you wouldn't do it if it was 17.5+19.4).  Example equation should look like this:

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Step 2. Put the decimal down to where it lines up. Like this:

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Step 3. Add regularly. Just ignore the decimal in the equation and just add. The answer would be 30.24. If you don't know how to add, I don't think your old enough for a brainly account:)

Step 4. Remove the zero. Zero as a number means nothing. So its ok in math to add a zero at the end of a decimal. So 4.0 is the same as 4 or 4.0000000000000. So when you have another problem, and your answer is something like 95.320, you can just remove the zero. So it would be 95.32:)

Hope I Helped! (this took me a long time to type out)

:)

7 0
3 years ago
Read 2 more answers
I will mark brainliest
Vilka [71]

Answer:

2nd option

Step-by-step explanation:

The zeros are the points on the x- axis where the graph crosses.

Since the graph crosses the x- axis at x = - 1 and x = 5, then

The zeros are x = - 1 and x = 5

5 0
3 years ago
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