MATHEMATICS MIDDLE SCHOOL

Cookies are on sale! Today each cookie costs $ 0 . 7 5 $0.75 less than the normal price. Right now if you buy 7 7 of them it will only cost you $ 2 . 8 0 $2.80! Write an equation to determine the normal price of each cookie ( c ) (c). Find the normal price of each cookie.

Answers

Answer 1

Answer:

Answer:

Hence, the normal price of each cookie= $ 1.15.

Step-by-step explanation:

Cookies are on sale!

Today each cookie costs $0.75 less than the normal price.

So let c be the normal price of one cookie.

Hence, today 1 cookie will cost= $ (c-0.75)

Right now if you buy 7 of them it will only cost you $2.80!

Hence,

cost of 7 cookie= 7×(c-0.75)

This means that:

7×(c-0.75)=2.80

i.e. 7c-7×0.75=2.80

⇒ 7c-5.25=2.80

⇒ 7c=0.80+5.25

⇒ 7c=8.05

dividing both side by 7 we get:

c=1.15

Hence, the normal price of each cookie= $ 1.15.

Related Questions

Which of the following are solutions to the equation below?
PLEASE Help this is due today
Pat bought a boat for $37,000 in 2001. In 2006 the boat was worth $27,000. If the boat depreciation is linear, how much will the boat be worth in 2009? A) $27,000 B) $22,000 C) $21,000 D) $20,000
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Is it possible for a number to be a rational number that is not an integer but is a whole number? Explain.

Answers

A rational number is a fraction pretty much or a decimal. An integer is a counting number including zero and the negatives. A whole number is a counting number not including the negatives and is not a fraction or decimal. So no i don't think you can get that combination.

Given that DF/PR=FE/RQ=3/2, what additional information is needed to prove △DEF ~ △PQR using the SSS similarity theorem?A. DE ≅ PQ
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D. DE/PQ = 3/2

Answers

Answer:

Option D.

Step-by-step explanation:

Given information: $(DF)/(PR)=(FE)/(RQ)=(3)/(2)$ .

We need to find the additional information which is needed to prove △DEF ~ △PQR using the SSS similarity theorem.

According to the SSS similarity theorem, two triangles are similar if their corresponding sides are proportional.

Using SSS similarity theorem, both △DEF and △PQR are similar if

$(DE)/(PQ)=(E F)/(Q R)=(DF)/(PR)$

If can be written as

$(DE)/(PQ)=(FE)/(RQ)=(DF)/(PR)$

It is given that $(DF)/(PR)=(FE)/(RQ)=(3)/(2)$ .

So, the additional information which is needed to prove △DEF ~ △PQR using the SSS similarity theorem is $(DE)/(PQ)=(3)/(2)$ .

Therefore, the correct option is D.

Answer:

Step-by-step explanation:

Which of the sets of ordered pairs represents a function?

Answers

Answer:

Step-by-step explanation:

only B i can of don't know but i probable go with B

What is the solution to 5x−2=13 ? Plot the solution on the number line.

Answers

Answer:

x= 3

Step-by-step explanation:

5x-2=13 - Add 2 to both sides which cancels out the -2 and turns 13 into 15

5x=15 - Divide 5 on both sides which cancels the 5 and leaves x=3

x=3 - Is the final answer or the solution to the problem

What is the simpleest form of 21/56

Answers

It is .375 hope this helps.

21/56 divided by 7 is 3/8 that's the simplest form

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Answers

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