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Archy [21]
3 years ago
7

I don't get it someone please help me

Mathematics
2 answers:
Gre4nikov [31]3 years ago
7 0
1) 3 groups and 8 singles
2) All singles
3) Etc....
Alja [10]3 years ago
5 0
3 groups of 10 than 1 group of 8
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At a farm the ratio of cows to horses was 9:2. if there were 72 cows at the farm, how many horses were there?
OLga [1]

ratio of 9:2

 means for every 9 cows there are 2 horses

72/9 = 8

 8 x 2 = 16

 there are 16 horses

4 0
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A sunflower grows to be 200cm tall. After four weeks, it was 30% of this height. How tall
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60cm

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d

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When solving the equation, which is the best first step to begin to simplify the equation?
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3 0
3 years ago
Mari and Jen each work 20 hours a week at different jobs. Mari earns twice as much as Jen. Together they earn $480. How much doe
Salsk061 [2.6K]
We will call:
M=Mari
J=Jen

Initial equations:

M=2J
M+J=480
(the fact that they work 20 hours a week is not needed in this problem information)

Plug in:
2J+J=480
3J=480
J=160

Jen makes $160 a week.

Therefore:

M=2J
M=2(160)
M=320

Mari makes $320 per week
Jen makes $160 per week
7 0
3 years ago
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