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Korolek [52]
2 years ago
14

You have $60 and your sister has $120. You are saving $14 per week and your sister is saving $10 per week. How long will it be b

efore you and your sister have the same amount of money? What amount would you have the same?
Mathematics
2 answers:
Ludmilka [50]2 years ago
3 0

it would take about 6 weeks and you would both have $130

Step-by-step explanation:

it would take you 5 weeks to reach $130 and your sister 1 week to reach $130.

Oxana [17]2 years ago
3 0

Answer:

15 weeks

$270

Step-by-step explanation:

Let y = total money saved

x = weeks

I am saving $14 every week, so I multiply x by 14

y = 14x

And I already have $60 to begin with

y = 14x + 60

My sister is saving $10 every week, so I multiply x by 10

y = 10x

And she already has $120 to begin with

y = 10x + 120

Now we just need to find a point where they are the same

14x + 60 = 10x + 120

Move like terms to one side, so subtract 10x from both sides

14x + 60 = 10x + 120

-10x         -10x

4x + 60 = 120

Subtract 60 from both sides

4x + 60 = 120

    - 60    - 60

4x = 60

Divide both sides by 4

4x/4 = 60/4

x = 15

Now plug in the new x into one of the original equations to find the money amount. We'll use sister's.

y = 10(15) + 120

y = 150 + 120

y = 270

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Inessa [10]

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

                  Hello!

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

❖ To find the mean, add up all the numbers and divide by the amount of numbers there are. To find the range, subtract the highest number by the  lowest number in the data set.

2. Mean = 35  Range = 78

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~ ʜᴏᴘᴇ ᴛʜɪꜱ ʜᴇʟᴘꜱ! :) ♡

~ ᴄʟᴏᴜᴛᴀɴꜱᴡᴇʀꜱ

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