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2 years ago

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

$60\ in=60/12=5\ ft$

$x+y=5$ ----> 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