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Elis [28]
3 years ago
12

Help me out please simple 8th grade math.

Mathematics
1 answer:
galben [10]3 years ago
6 0
X-3
The blank is minus 3
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mrs_skeptik [129]

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Step-by-step explanation:

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Write the equation of the line with an x-intercept at (0,2) and perpendicular to 3x+4y=12.
juin [17]

First you normalize 3x+4y=12 into y = -3/4 x + 3 (dividing by 4).

Then you observe that the slope of the line is -3/4 (it's always the factor with the x). A perpendicular line has the reciprocal slope. Reciprocal means inverted and negated. So -3/4 becomes +4/3.

The equation will thus look like y = 4/3 x + b. To find b, we fill in the given x intercept (0,2), (we get 2 = 4/3 * 0 + b). With x=0, b must be 2.

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Papessa [141]
It will be the last one a×b×b
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3 years ago
5) 5x-4= 20<br> у = 3х - 12<br> solve
vredina [299]

Answer:

Step-by-step explanation:

5x-4=20

5x=24: x=24/5

y=3x-12

y=3(24/5)-12

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2 years ago
Luis works 45 hours and earns 10 an hour. How much money would he earn in 3 weeks.
daser333 [38]

Answer: $1,350

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45 hours x 10 dollars/hour = 45x10 dollars = 450 dollars/week

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