MATHEMATICS MIDDLE SCHOOL

Cookies are on sale! Today each cookie costs $0.75 less than the normal price. Right now if you buy 7 of them it will only cost you $2.80! Write an equation to determine the normal price of each cookie (c).

Find the normal price of each cookie.

Answers

Answer 1
Answer: Well first to find out how much the cookies are on sale you do
2.80/7= 0.40
So on sale each cookie is 40 cents each, now to figure out the normal price add 75 cent to the sale price so:
0.40 + 0.75 = 1.15
So that gives us $1.15
So the normal price for the cookies is $1.15 and the sale price is $0.40 cents

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LeBron has 6 yards of cable.he needs 15 feet of cable to install a stereo.does he have enough cable to install the stereo?explain your answer

Answers

PLEASE MARK BRAINLIEST!

Answer:

Yes!

Step-by-step explanation:

This is because 6 yards equals 18 feet. If there is 15 feet needed to install a stereo, and we have 18 feet of cable, we have MORE THAN ENOUGH cable to install the stereo. So yes, there is enough cable to install the stereo.

I hope this helps!

- sincerelynini

Answer:

Yes.

Step-by-step explanation:

There is 3 feet in every yard. So LeBron has 18ft of cable.

Question: What is 7 /16 written as a decimal? Show your work.

Answers

0.4375 because if you divide it by its self youll get it 
7/16 = 0.4375 Well, do you know the division of math? It is hard to show the division on here. But I just gave you the answer.

mary decreased her time in the mile walk from 30 minutes to 24 minutes. What was the percent of decrease?

Answers

(24/30)*100 = 80%

Therefore she decreased from 100% to 80%, which is about 20% decrease.
Thus, the answer is 20%



Another way to do this is.

((Original value - current value))/(Original value) * 100% = percentage of change in value


Which in this case is 
(30-24)/(30) * 100% = 20%

Twice a number, minus 13

Answers

The solution of the expression twice a number, minus 13 in numeral form, is 2x-13

A collection of constants, variables or numbers connected using one or more arithmetic operator is called an expression

Example = 4y, 3x+4.

The given expression in numeral form is represented as:

Assume, the unknown variable be x.

The twice of the number is 2x.

Further, subtracting 13 from the 2x results in 2x-13.

Thus, the solution of the expression twice a number, minus 13 in numeral form is 2x-13.

Learn more about expressions here :

brainly.com/question/34132400

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Twice a number, minus 13
Answer: 2n - 13

What is 70 pennies decreased by 20%?

Answers

70-20%=56
You multiply 70 x .2 = 14 and then subtract
70-14=56
So your answer is 56 pennies
The answer is 56 pennies!ヽ(◉ ͜ʖ◉)ﾉ

How to find the diameter with a radius of 42.5

Answers

Diameter is double of the radius .
So diameter =85 cm.
You will multiply it
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