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3 years ago

Complete the equation of the line through 6,-6 and 8,8

Mathematics

1 answer:

KATRIN_1 [288]3 years ago

3 0

Answer:

y=7x-48

Step-by-step explanation:

The equation of a line is y=mx+b where m is the slope and b is the y intercept.

To find the slope use the equation Slope=y2-y1/x2-x1

For this equation is is 8+6/8-6=7

I found the y-intercept using the slope and it = -48.

The y-intercept is the point where the line crosses the y-axis.

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Evaluate the expression 43/23

ivanzaharov [21]

That would be 43 divided by 23 which would equal 1.8695

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4 years ago

Janet is three years older than her sister Julie.Janets brother is 8 years younger Than Her sister Julie .the sum of all of thei

slavikrds [6]

x + x + 3 + x - 8

3x - 5 = 55

3x = 60, x = 20

Since we put Julie as x, we put Janet at x + 3, and the brother is x - 8 (8 years younger)

Julie is 20

Janet (x + 3) = (20 + 3) = 23

Brother(x - 8) = (20 - 8) = 12

5 0

3 years ago

A log splitter can split 6/5 cords of wood in 4/5 of an hour. Complete the unit rate by setting up a complex fraction and simpli

Digiron [165]

Answer:

1½ cords per hour

Step-by-step explanation:

A log splitter can split 6/5 cords of wood in 4/5 of an hour.

To find a unit rate, we divide the quantity of cords of wood by the time.

This gives us the complex fraction.

$\frac{ \frac{6}{5} }{ \frac{4}{5} }$

This is the same as

$\frac{6}{5} \div \frac{4}{5}$

To divide two fractions, we multiply by the reciprocal of the second fraction.

$\frac{6}{5} \times \frac{5}{4}$

$\frac{3}{1} \times \frac{1}{2}$

This simplifies to:

$\frac{3}{2} = 1 \frac{1}{2}$

The unit rate is 1.5 cords per hour

3 0

3 years ago

Twice Henry's earnings increased by 10 is $253. Therefore, Henry earned $____

valina [46]

Answer:

121.50

Step-by-step explanation:

Let x be the earnings

2x+10 = 253

Subtract 10 from each side

2x+10-10 = 253-10

2x = 243

Divide by 2

2x/2 = 243/2

x = 121.50

8 0

3 years ago

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Viktor [21]

Answer:

PetSmart is offering the best deal

Step-by-step explanation

For Gristede's we get 18 and divide it by 12 which would give us $1.50 per can

For PetSmart we get 26 and divide it by 20 which would give us $1.30 per can

3 0

3 years ago