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Sliva [168]
3 years ago
8

Rebecca bought groceries using 50% of her paycheck from her part time job. She saved 75% of the remaining amount of money and ha

d $60 left. What was the amount of Rebecca's paycheck?
Mathematics
1 answer:
never [62]3 years ago
8 0
0.75 (1/2x) = 60

60/3 is 20, which is 25% of her remaining money,
So her total remaining money is $80.

Then 80 x 2 = 160
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Use simultaneous equations to solve the following. Three kilograms of jam and two kilograms of butter cost $29 and six kilograms
artcher [175]

Answer:

The cost of 1kg jam is $7 and the cost of 1kg butter is $4

Step-by-step explanation:

Let jam = x

butter = y

3x + 2y = 29 -----(1)

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(1)×2 ->

6x + 4y = 58 -----(3)

(3)-(2) ->

y = 4

suby=4into(2)

6x + 3(4) = 54

6x = 42

x = 7

(Correct me if i am wrong)

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3 years ago
Como resolver y=1-2.5
oksian1 [2.3K]

I don't really speak Spanish but I'll guess that says

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Unless I'm missing something, there's not even any algebra here.  

The way we subtract a bigger number from a smaller number is first we subtract the smaller number from the bigger number the regular way, then we prepend a minus sign.


y = 1 - 2.5 = -(2.5 - 1) = -1.5



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3 years ago
Help with math question <br> thanks so much
liubo4ka [24]
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3 years ago
Which of the following describes the zeroes of the graph of f(x) = –x5 + 9x4 – 18x3?
Flura [38]

Answer:

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7 0
2 years ago
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