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Alexus [3.1K]
3 years ago
12

Select the correct answer.

Mathematics
1 answer:
Pani-rosa [81]3 years ago
5 0

Answer:

D

Step-by-step explanation:

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Will is twice as old as Jill. Three years ago, Jill's age was two fifths of Will's age then. How old is each now?
dimulka [17.4K]
"Will is twice as old as Jill."

                       Jill's age . . . . .   J
                       Will's age . . . . 2J .

"Three years ago . . .

                       Jill's age then . . . . .   J - 3
                       Will's age then . . . . 2J - 3

". . . Jill's age then was 2/5 of Will's age then."

                                         J - 3  =  (2/5) (2J - 3)
Multiply
each side by  5 :          5J - 15  =  2 (2J - 3)

Divide
each side by  2 :          2.5 J - 7.5  =  2J - 3 

Subtract  2J
from each side:            0.5 J - 7.5  =      -3

Add  7.5
to each side:                0.5 J           =     4.5

Multiply
each side by  2 :                J            =       9

Jill is  9  y.o. now.
Will is 18 y.o. now.

4 0
2 years ago
Corinna has $88. She wants to buy a $275 plane ticket. She will save up her earnings from working at the museum where she earns
m_a_m_a [10]

Answer:

275 = 17x + 88 \\ - 88 = 17x - 88 \\ 187 = 17x \\ 187 \div 17 \\ x = 11 \: hours

8 0
3 years ago
HELLLLLLLLLLLLOOOOOOOO HELPPPPPPP
const2013 [10]

Answer:

<h2><u><em>MARK ME AS BRILLANT </em></u><em>^_^ ~_~</em></h2>

Step-by-step explanation:

3 0
3 years ago
Solve for x when 3x + 16 = 34?
Paraphin [41]

Answer:

x = 6

Step-by-step explanation:

3x + 16 = 34

34 - 16 = 18

3 x ? = 18  

3 x (6) = 18

18 + 16 = 34

Hope this helps :D

5 0
3 years ago
Read 2 more answers
I WILL GIVE BRAINLIEST Justin is trying to find a new cell phone plan and was deciding between Verizon and AT&amp;T. The followi
Lelu [443]
AT&T= 2 years Verizon= 7 years, I hope this helps
6 0
3 years ago
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