MATHEMATICS MIDDLE SCHOOL

Janet is buying a $28 necklace. The store reduces the price by 20% and then applies a $2 off coupon. How much will Janet pay for the necklace? Could you show the work please? I would really appreciate it.

Answers

Answer 1
Answer: Original cost of the necklace = $28
Percentage by which the store reduces the price of the necklace = 20%
Amount of discount given
by the store on the necklace = (20/100) * 28
                                               = 28/5 dollars
                                               = 5.6 dollars
So
The price of the necklace after discount = (28 - 5.6) dollars
                                                                 = 22.4 dollars
Amount of discount on coupon = $2
Then
Price of the necklace after deducting coupon discount = (22.4 - 2) dollars
                                                                                        = 20.4 dollars
So Janet will pay 20.4 dollars for the necklace.    
Answer 2
Answer: make two im so sorry i would show you on paper hard to do it on here i will try
2      2o
---=---
28   100

then you need to cross multiply

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Benny has saved three thousand nine hundred cents over four days from selling lemonade.How many dollars does Benny have?

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30 Dollars.

Hope this helps please mark this as Brainliest answer,

One serving of this cereal provides you with 160 mg of sodium. This is 7% of your body's daily needs. How many milligrams of sodium equal 100%?

Answers

First, we see the closest multiple of 7 under 100 is 98 and that divided by 7 is 14. there are 2/7 as our remainder. We do 2/7 times 160 to get 320/7 and 320/7 = 45 and 5/7. We convert 5/7 into a decimal like 5/7 = .7. The answer is 45.7 milligrams of sodium.

During one week, the price of a stock decreased $4 per day for 3 days and increased $2 per day for 4 days. Which integerrepresents the change in the price of the stock over the week?
-20
-4
4
20

Answers

The addition is one of the four fundamental mathematical operations. The correct option is B.

What is Addition?

The addition is one of the four fundamental mathematical operations, the others being subtraction, multiplication, and division. When two whole numbers are added together, the total quantity or sum of those values is obtained.

Given that the price of a stock decreased $4 per day for 3 days and increased $2 per day for 4 days. Therefore, The change in the price of the stock is,

Change in the price = (-$4 × 3 days) + (+$2 × 4 days)

                                  = -$12 + $8

                                  = -$4

Hence, the correct option is B.

Learn more about Addition:

brainly.com/question/14092461

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Answer:

-4

Step-by-step explanation:

so 4 would be negative because it decreased and 2 would be positive because it increased so multiply -4 by 3 wich is -12 then add it by 2 times 4 which is 8 and it is -4

PLEASE HELP!! EASY MATH FOR ADULTS NOT MIDDLE SCHOOLERS HELP PLS!Alexa is looking at the shape at top. She needs to
make several different figures that are similar to it.
If she uses the scale factor , will the new shape
that she creates be larger or smaller than the
original? Justify your answer.
b. List two different scale factors Alexa could use to make a smaller shape.
C. List two different scale factors Alexa could use to make a larger shape.​

Answers

The answers for part [b] and [c] is -

[b] : K = 0.5 and K = 0.7

[c] : K = 2 and K = 3

What is scale factor? How it is used in Dilating coordinates?

Scale factor is used to compare 2 quantities, indicating by how much one quantity is greater than the other. It is denoted by K. Mathematically-

K = a/b.

If a coordinate point (x, y) is dilated by a scale factor of [k], then the coordinate point after dilation will be - (kx, ky).

Given is a trapezium as shown in image.

For scale factor [K] greater than zero, the shape will enlarge while if [K] is less than zero, the shape will shrink.

So -

[b] : K = 0.5 and K = 0.7

[c] : K = 2 and K = 3

Therefore,  the answers for part [b] and [c] is -

[b] : K = 0.5 and K = 0.7

[c] : K = 2 and K = 3

To solve more questions on dilation, visit the link below-

brainly.com/question/13439872

#SPJ5

Answer:

B. 0.5 and 0.2

C 2 and 3.2

Step-by-step explanation:

because anything lesser than the standard value of one is smaller.

because anything over the standard value of one is larger.

farmer fran has 47 barnyard animals,consisting of only chickens and sheep . if these animals have 138 legs , how many of each type of animals are there?

Answers

47 X 4 = 188. That is 50 too many legs. 50/2=25. If you take away 25 sheep and add 25 chicken you have the correct number of legs. There are 25 chicken and 22 sheep.

Hope this helps.
just use the equations x + y= 47 and 2x + 4y=138 to solve

How do I do these questions?

Answers

I just did the first one but I don't know is it correct
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