Help!!! I don’t get this :(

Answers

Answer 1

Answer: You have to use distributive property. Multiply the numbers outside of the parenthesis by the numbers inside. For example, you would multiply 0.4 by 2x first, then multiply it by 1/2. You should get two answers. Write them down in this form: first answer + second answer. Then do the same for the other side of the equal sign, but leave the - 4 alone. If you need more help, let me know

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What is the answer ?

Answers

-7y -3y +2 = -8y-8

-10y +2 = -8y-8

-10y +8y = -8 -2

-2y = -10

2y = 10

y = 10/2 = 5

Answer:

y = -5/6

Step-by-step explanation:

7y - 3y + 2 = -8y - 8

12y + 2 = -8

12y = -10

y = -10/12 = -5/6

A pie graph is also called a histogram

Answers

A histogram can be called a pie graph. That statement is true

a histogram can be a pie chart but there is no question here

How would you convince a fellow student hat the number 0.57 is a rational number

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Start by proving to them that the number 0.57 can be converted into a fraction . A whole number can't exactly be put in to a fraction. 0.57 can be converted to 14.25/25. This information means that 0.57 IS a rational number. Hope this convinced them!

when added to the number that is produced by doubling the number x the result is equal to 8 times the number that is 5 less than x what is the value of x?

Answers

x is 4
4+4=8
4is less than 5

2x + x = 8(x-5)
3x = 8x-40
-5x = 40
x = -8

Just tell me if you need more assistance figuring out how I concluded that.

How to simplify 27/51

Answers

Bob the numerator and denominator are divisible by 3 so the simplified fraction would be 9/17

Cancel the common factors in the numerator and denominator.

Exact Form:
917

Decimal Form:0.52941176…

Due to smoking, a terminally ill patient loses his lung capacity approximately 2% every 4 months. At this rate, beginning at 100% capacity, what will the patient's lung capacity be in one year?

Answers

Answer:

94% lung capacity.

Step-by-step explanation:

Find the unit rate. Divide 2 by 4 which gets 0.5.

Take 0.5 times 12 (12 months in one year)

You should get 6.

Then, 100 minus 6 (because the patient loses capacity) therefore you should get 94.

Answer:

94.1%

Step-by-step explanation:

Convert that 100% to "1." Then:

Lung capacity as a decimal fraction) = C(x) = 1(1.00-0.02)^x, where x represents the number of 4-month periods.

After the first 4-month period, the lung cap should be 1(1.00-0.02)^1, or 0.98.

After the 2nd 4-month period, 1(0.98)^2, and

After the 3rd 4-month period, 1(0.98)^3, or 0.941

After 1 year (which is after three 4-month periods), the patient's lung cap has declined to 0.941 of its former maximum value (1), or 100%. 0.94 is equivalent to 94.1%.

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