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3 years ago

7

A student finished 8 of her homework problems in class. If the ratio of problems she finished to problems she still had left was

4:1, how many homework problems did she have in total?

1 answer:

Arlecino [84]3 years ago

7 0

4:1
Multiply each side by 2 to make the left side 8:
8:2

8+2=10
She had a total of 10 homework problems.

Hope this helps :)

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zvonat [6]

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the variant A.$40.00

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3 years ago

What is 10x5thousands

ella [17]

It will be 50,000 =10*5,000

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3 years ago

Please Help- <br> K + ⅓ = 5 ⅛ | K = ?<br> Show Your Reasoning.

blondinia [14]

Answer:

$4\frac{19}{24}$

Step-by-step explanation:

I hope I did this right:

So first thing to do is set up the equation.

$K + \frac{1}{3} = 5\frac{1}{8}$

Next thing to to is subtract 1/3 from both sides to get:

$K = 5\frac{1}{8} - \frac{1}{3}$

Next up, you will multiply each of the fractions by the opposing value

(multiply 1/8 by 3 and 1/3 by 8)

$K = 5\frac{3}{24}$ $-\frac{8}{24}$

Alright almost done, by multiplying 24 by 5 you get 120, that will go in the numerator to make the math a lot easier.

K = $\frac{123}{24}$ $-\frac{8}{24}$

Finally, you subtract 123 over 24 by 8 over 24.

K = $\frac{123}{24} - \frac{8}{24} = \frac{115}{24}$

Then just simplfy the 115/24 to get

$4\frac{19}{24}$

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3 years ago

Is this graph Proportioal or Not Proportional?

Over [174]

Answer:

Proportioal

Step-by-step explanation:

?

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3 years ago

Find the equation of the line tangent to the function at the given point f(x)=5x^2 at x=10

Svet_ta [14]

f(x) = 5x²

f(10) = 5(10)² = 5(100) = 500

f'(x) = 10x

f'(10) = 10(10) = 100

Now, find the line that passes through (10, 500) and has a slope of 100

y - y₁ = m(x - x₁)

y - 500 = 100(x - 10)

y - 500 = 100x - 1000

y = 100x - 500

8 0

3 years ago