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4 years ago

Find the missing value so that the two points have a slope of -2.(1,y) and (6,-5)

Mathematics

1 answer:

Aloiza [94]4 years ago

5 0

Answer:

(-5-y)/(6-1)= -2

(-5-y)/(5)= -2

-5-y=-10

-y = -5

y = 5

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Could you add 7/12 2/3

muminat

Yes, you need to make the denominators the same. 2/3 becomes 8/12. So now you add 7/12 and 8/12, getting 15/12. But you're not done you need to simplify 15/12. The answer is 1 1/4.

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3 years ago

On a two week job a repairman works a total of 70 hours. He charges 75$ plus 40$ per hour. An equation shows this relationship w

Viefleur [7K]

Answer:

Slope = 40

Step-by-step explanation:

Time spent = 70 hours(given)

Fixed charge = $75 (given)

x = Total number of hours (given)

Variable charge = $40 * Total number of hours.

Variable charge = $40x

Fee charged, y = Variable charge + Fixed charge

y = 40x + 75 ($)

The equation of a straight line is given as: y = mx + c

where m = slope

Comparing it with the equation above, m = 40

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3 years ago

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Daniel [21]

Answer:

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Step-by-step explanation:

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3 years ago

A telescope costs $126 with a 30% discount. What was the original price?

Juli2301 [7.4K]

Answer:

$180

Step-by-step explanation:

Since the cost of the telescope with the 30% discount is $126 then $126 is 70% of the original price. Remember 100-30=70. To find the original price set up a proportion with these values:

$\frac{126}{x}=\frac{70}{100}$

Solve for the original price by cross multiplying numerator with denominator.

x(70) = 126(100)

70x = 12600

x= $180

3 0

4 years ago

There are 40 nickels in a roll. If you have 50 rolls of nickels, how many nickels do you have?

Shalnov [3]

2000

2000 because 50*40=2000

8 0

4 years ago