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lys-0071 [83]
3 years ago
14

Martha spent 4/9 of her allowance on food and shopping. What fraction of her allowance had she left?

Mathematics
2 answers:
Mkey [24]3 years ago
7 0
Her total allowance as a fraction could be expressed by 9/9. When you subtract the amount that she used, 4/9, you are left with 5/9, which is the solution. 
WARRIOR [948]3 years ago
7 0
She has 5/9 of her allowance left
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how to determine which quantity is independent and which quantity is dependent when considering a situation
KATRIN_1 [288]

An easy way to think of independent and dependent variables is, when you're conducting an experiment, the independent variable is what you change, and the dependent variable is what changes because of that. You can also think of the independent variable as the cause and the dependent variable as the effect.

I hope this helps!

7 0
3 years ago
3x+2y=10 Solve the equation for y
Irina-Kira [14]

Answer:

y=-3/2x+5

Step-by-step explanation:

3x+2y=10

2y=10-3x

2y=-3x+10

y=-3/2x+10/2

y=-3/2x+5

5 0
3 years ago
Read 2 more answers
N/8= 25/40<br> N/20=85/100<br> 2/3=16/n<br> 5/6=25/n
4vir4ik [10]
N/8 = 25/40
40n = 25 * 8
40n = 200
n = 200/40
n = 5

n/20 = 85/100
100n = 85 * 20
100n = 1700
n = 1700/100
n = 17

2/3 = 16/n
2n = 16 * 3
2n = 48
n = 48/2
n = 24

5/6 = 25/n
5n = 25 * 6
5n = 150
n = 150/5
n = 30
3 0
4 years ago
Simplify √ 105 <br> A. 2√ 7 <br> B. √ 42 <br> C. 2√ 3 <br> D. √ 105
IrinaVladis [17]

√105 is written in simplest form already.

The answer would be D. √105

7 0
3 years ago
When a certain valve is open, 281 gallons go through it in one hour. The number of gallons that would go through in 94 hours is?
yarga [219]
281 gallons/ 60 min= 4.683 gallon per min
4.683 gallon per min * 94 hours= 440.23 gallons

Answer: 440.23 Gallons
8 0
3 years ago
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