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3 years ago

8

How u do ratios and divide because i have bad memories and its to many steps?

1 answer:

Drupady [299]3 years ago

5 0

It depends on the question, but if the questions is sort of like "Person A and Person B shared 40 sweets in the ratio 3:5, how many sweets did Person A get" then you add 3 and 5 to get 8, and then you do 40 ÷ 8 to get 5 which is 1 in terms of the ratio. Then, you would multiply 5 by 3 to get 15 sweets. If it's a different type of question then let me know so I can help out :)

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What is 12w - 13 - 11w + 24 = 77.

Alex787 [66]

12w - 13 - 11w + 24 = 77

combine like terms

w + 11 = 77

subtract 11 from both sides

w = 66

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Need help question #3. Show steps please

Oksana_A [137]

Answer:

B.

Step-by-step explanation:

We are given:

$\displaystyle \int \sqrt{x}\Big(9x^3-2\sqrt{x}+\frac{8}{x}\Big)\, dx$

And we want to select its equivalent form.

Note that A is not valid. No integration property allows us to separate factors unless that factor is a constant.

We can simply rewrite and then distribute. First, by rewriting:

$\displaystyle =\int x^{1/2}\Big(9x^3-2x^{1/2}+8x^{-1}\Big)\, dx$

Distribute. Recall exponent properties;

$\displaystyle =\int(9x^{3+1/2}-2x^{1/2+1/2}+8x^{-1+1/2})\, dx$

Simplify:

$\displaystyle=\int9x^{7/2}-2x+8x^{1/2}\, dx$

This can then be separated (since its addition/subtraction) and integrated individually.

Hence, our answer is B.

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2 years ago

Betty draws cards randomly from a box containing 8 cards of the same shape and size. There is 2 red cards, 3 blue cards, and 3 y

saveliy_v [14]

Answer:

i think you have to add all the numbers then divide

Step-by-step explanation:

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