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irakobra [83]
2 years ago
14

Solve the Simultaneous Equations: a - b = 3​

Mathematics
1 answer:
earnstyle [38]2 years ago
7 0

Answer:

it could be 4-1=3 but i would do 10-7=3

Step-by-step explanation:

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What is the difference 1/9 - 5/6 a 13/18 b 1/18 c - 1/18 d -13/18
Murrr4er [49]
1/9 - 5/6

Convert both of them into denominators of 18.

2/18 - 15/18

Subtract the numerators and keep the denominator:

-13/18
3 0
3 years ago
A chemical company mixes pure water with their premium antifreeze solution to create an inexpensive antifreeze mixture. The prem
Ne4ueva [31]

Answer:

  • premium: 165 gallons
  • water: 120 gallons

Step-by-step explanation:

Let 'a' represent the amount of 95% antifreeze in the mix. Then the amount of water is (285 -a). The mix has this amount of antifreeze in it:

  0.95a +0(285 -a) = 0.55(285)

  a = 0.55/0.95(285) = 165 . . . gallons of 95%

  285 -a = 285 -165 = 120 . . . . gallons of water

There are 120 gallons of water and 165 gallons of premium antifreeze in the mixture.

6 0
2 years ago
If a person earns $275 per week, how much is earned in 26 weeks
WARRIOR [948]

Answer:

$7150

Step-by-step explanation:

To find how much is earned, take the amount earned per week times the number of weeks

275*26 =7150

4 0
2 years ago
Help me please
barxatty [35]

Answer: A

Step-by-step explanation:

7 0
1 year ago
Z=x/y -3r make x the subject
satela [25.4K]
Z = x-y(3r)/y
z = x-y * 3r/y
Final answer: x = yz + 3yr
6 0
2 years ago
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