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murzikaleks [220]
2 years ago
5

Please help me!

Mathematics
2 answers:
Alexxandr [17]2 years ago
7 0

Step-by-step explanation:

you'd prefer 60% off because 60% is more than half off (half off is only 50% off)

Papessa [141]2 years ago
7 0
60% off since it’s more then 50%, plus it’s more useful for cheaper items you purchase
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#9 and #10<br> Please show work
Tatiana [17]

Answer:

Part 9) The number of items on Emily's grocery list is 5 and the number of items on Bobby's grocery list is 13

Part 10) The height of the taller bookshelf is 4 feet and the height of the shorter bookshelf is 1 foot

Step-by-step explanation:

Part 9)

Let

x ----> number of items on Emily's grocery list

x ----> number of items on Bobby's grocery list

we know that

y=2x+3 ----> equation A

x=y-8 ----> equation B

Solve by substitution

Substitute equation A in equation B

x=(2x+3)-8

solve for x

x=2x-5

2x-x=5

x=5

Find the value of y

y=2(5)+3=13

therefore

The number of items on Emily's grocery list is 5 and the number of items on Bobby's grocery list is 13

Part 10)

Let

x ----> the height of the taller bookshelf in feet

y ----> the height of the shorter bookshelf in feet

we have

x=5y-1 ----> equation A

Remember that

1\ ft=12\ in

To convert inches to feet divide by 12

so

60\ in=60/12=5\ ft

x+y=5 ----> equation B

Solve the system by substitution

substitute equation A in equation B

(5y-1)+y=5

solve for y

5y+y=5+1

6y=6

y=1\ ft

Find the value of x

x=5(1)-1=4\ ft

therefore

The height of the taller bookshelf is 4 feet and the height of the shorter bookshelf is 1 foot

3 0
3 years ago
Express the fraction in simplest form 9/12
Ratling [72]
9/12 dividing both the numerator and the denominator by 3

9/3=3
12/3=4

this reduces down to 3/4
6 0
3 years ago
Read 2 more answers
WILL MARK BRAINLIEST!
antiseptic1488 [7]

Answer:

9.58

Step-by-step explanation:

total score needed

9.5 * 5 = 47.5

Score from 4 judges

9.48 * 4 = 37.92

Score needed from 5th judge

47.5 - 37.92 = 9.58

7 0
2 years ago
1.) Using a graphing calculator, graph the function and its parent function. Then describe the
romanna [79]

Answer:

can you show me picture please so i can answer it

Step-by-step explanation:

7 0
3 years ago
Give the value of x that makes this equation true.
Anuta_ua [19.1K]
The answer is C because 1 changes nothing
5 0
3 years ago
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