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Darina [25.2K]
3 years ago
5

How do I simplify the expression 8x+2x-3y-9x

Mathematics
2 answers:
zloy xaker [14]3 years ago
8 0
X-3y because 8x+2x-9x is x
Schach [20]3 years ago
5 0
It's like adding and subtracting. All the ones with x's go together, and all the y's go together (or whatever other letters there are.) 8x+2x=10x

10x-9x=1x

1x=x (if there's a letter and the number next to it is 1 it is just the letter)

Now x-3y is your solution because x and y don't go together
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Martha Washington walks 30 minutes each day. If she walks for 140 days, how many hours will she walk?
telo118 [61]

70

make 30 minutes into an hour then divide 140 by 2

140/2=70

70x1=70

5 0
2 years ago
Please help me *30 points* (please don't comment unless its answer :
Irina-Kira [14]

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6 0
3 years ago
If w= the weight of a trout, which algebraic expression represents the phrase
RoseWind [281]

Answer:

it would be w7

Step-by-step explanation:

because to get w you mulitply w with 7

so all that you need to do is put the 7 next to the w

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6 0
3 years ago
A recipe for pie dough calls for a ratio of butter to flour of 1/4 :5/6.If you plan to use 5 cups of flour,how much butter shoul
Komok [63]

Answer:

\frac{3}{2}  cups of butter should be use to keep the same ratio.

Step-by-step explanation:

Given:

A recipe for pie dough calls for a ratio of butter to flour of 1/4 :5/6.

If you plan to use 5 cups of flour.

Now, to find the butter should be used to keep the same ratio.

So, to get the quantity of butter by using unitary method:

If, \frac{5}{6}  cup of flour use then butter should be = \frac{1}{4} .

So, 1 cup of flour use then butter should be = \frac{1}{4} \div \frac{5}{6} =  \frac{6}{20} .

Thus, for 5 cups of flour butter should be = \frac{6}{20} \times 5 = \frac{30}{20}=\frac{3}{2} .

Therefore, \frac{3}{2} cups of butter should be use to keep the same ratio.

5 0
3 years ago
16 ÷ 8 = 2
hjlf
The answer is D. 2 x 8= 16
3 0
3 years ago
Read 2 more answers
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