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Wittaler [7]
3 years ago
6

Yolanda bought some books. She spent a total of $45 after a discount of $6 off of her total purchase. Each book cost $3. How man

y books did she buy?
Mathematics
2 answers:
PolarNik [594]3 years ago
5 0

Answer:

ignore sorry need brainly answers

Step-by-step explanation:

Natasha_Volkova [10]3 years ago
5 0

Answer:

Yolanda bought 17 books.

Step-by-step explanation:

$45 + $6 = $51

$51 ÷ $3 = 17 books

You're welcome!

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17. Mrs. Marshall baked 120 cookies. She decided
agasfer [191]

Answer:

20 cookies

Step-by-step explanation:

120*6=20

20 = 1/6 of 120

8 0
3 years ago
2.) Bob has two weekend jobs. Last weekend he made a total of $77 after
Butoxors [25]

Answer:

Step-by-step explanation:

x= money earned per hour working as a cashier.

y=money earned per hour working delivering newspapers.

We propose the following system of equations:

5x + 4y =77

6x + 3y=78

We solve the system by reduction method:

-6*(5x+4y=77) ⇒  -30x-24y=-462

5*(6x+3y=78)⇒     30x+15y=390

                             ---------------------------

                                     -9y=-72  ⇒   y=-72 /-9=8

Now, we get the value of "x" replacing the value of "y" by "8" in any part of the equation above.

5x + 4(8)=77

5x+32=77

5x=77-32

5x=45

x=45/5=9

therefore;  

money earned per hour working as a cashier= $9/ hour

money earned per hour working delivering newspapers=$8/hour

7 0
3 years ago
Read 2 more answers
The formula for perimeter of a rectangle is given by p = 2l + 2w, where p = perimeter, l = length, and w = width. solve the form
TiliK225 [7]
Perimeter formula
p = 2l + 2w

I reverse left-right side
2l + 2w = p

Move 2l to the right
2l + 2w = p
2w = p - 2l

Move 2 to the right
2w = p - 2l
w = (p - 2l)/2

Summary
p = 2l + 2w
2l + 2w = p
2w = p - 2l
w = (p-2l)/2
5 0
3 years ago
A real estate agent sells a house for 87,000. She gets a commission of 6% on a sale. What is her commission
pogonyaev

her comission is $5,220 from the sale of $87,000

6 0
3 years ago
How do you do polygons on coordinate grids
densk [106]

Answer:

When you do polygons on a coordinate grid, you will have points and then you connect them to form any type of polygon. There must be a total of 3 or more coordinate points.

5 0
3 years ago
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