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Pepsi [2]
3 years ago
13

What is the answer to 20x+7=4+6?

Mathematics
2 answers:
AnnyKZ [126]3 years ago
7 0

Answer:

Step-by-step explanation:

vredina [299]3 years ago
6 0

Answer:

0.15

Step-by-step explanation:

20x+7=10

20x=10-7

20x=3

x=3/20

x=0.15

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Answer:

53

Step-by-step explanation:

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8 0
3 years ago
9a-4(2a+5).<br> I really need help with this question
slava [35]

First you had to expanded form.

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9a-8a-20

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8 0
3 years ago
Read 2 more answers
Find an equation of a line passing through the point (8,9) and parallel to the line joining the points (2,7) and (1,5).
TiliK225 [7]

Answer:

2x - y - 7 = 0

Step-by-step explanation:

Since the slope of parallel line are same.

So, we can easily use formula,

y - y₁ = m ( x ₋ x₁)

where, (x₁, y₁) = (8, 9)

and m is a slope of line passing through (x₁, y₁).

and since the slope of parallel lines are same, so here we use slope of parallel line for calculation.

and, Slope = m = \dfrac{y_{b}-y_{a}}{x_{b}-x_{a}}

here, (xₐ, yₐ) = (2, 7)

and, (y_{a},y_{b}) = (1, 5 )

⇒ m = \dfrac{5-7}{1-2}

⇒ m = 2

Putting all values above formula. We get,

y - 9 = 2 ( x ₋ 8)

⇒ y - 9 = 2x - 16

⇒ 2x - y - 7 = 0

which is required equation.

3 0
3 years ago
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if marcus used to get paid $45 a day and now got a raise to $63 a day what percent increase to his new salary
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It is a 163% increase.
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3 years ago
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