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3 years ago

What is the slope-intercept equation of the line below? 10 minutes left

Mathematics

1 answer:

scoray [572]3 years ago

7 0

Answer:

y=-3x+4

Step-by-step explanation:

The y intercept is 4 because the line crosses the y axis at the 4 tic mark

The slope will be -3 because the y decreases by 3 every time the x incerases by 1

y=mx+b

y=-3x+4

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Three friends got jobs at stores in the mall. Nina earns $117.60 for hours 14 of work. Ty earns for $148.50 hours 18 of work. Ki

marysya [2.9K]

Answer:

Kim has the highest pay rate in dollars per hour

Step-by-step explanation:

we know that

To find out the unit pay rate divide the total earning by the total time

Nina earns $117.60 for hours 14 of work

$\frac{117.60}{14}=\$8.4\ per\ hour$

Ty earns for $148.50 hours 18 of work

$\frac{148.50}{18}=\$8.25\ per\ hour$

Kim earns for $137.60 hours 16 of work

$\frac{137.60}{16}=\$8.60\ per\ hour$

$8.6 > 8.4 > 8.25$

therefore

Kim has the highest pay rate in dollars per hour

6 0

3 years ago

What is the algebraic expression for the difference between nine times a number and four more than six times the number?

Mazyrski [523]

Answer:

9n-(6n+4)

Step-by-step explanation:

n is number

7 0

4 years ago

A statue of Abraham Lincoln casts a 9-foot shadow at the same time the White House casts a 48-foot shadow. If the White House is

jeka94

Answer: The statue, originally intended to be only 10 feet tall, was on further consideration enlarged so that it finally stood 19 feet tall from head to foot, the scale being such that if Lincoln were standing he would be 28 feet tall.

Step-by-step explanation: hope this helps

8 0

3 years ago

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The line m has a slope of 2/3.Which line described below is the only line that could be parallel to line m?

ANEK [815]

Answer:

Parallel lines have the same slope, so the one with the same slope.

7 0

4 years ago

Marco starts with a population of 10 bacteria that doubles every day for a number of days, d. He writes the expression 10(2d) to

riadik2000 [5.3K]

Answer:

Marco- 10 is the starting value of the population. 2 is the growth rate of "double each day" with d as an exponent.

Isabella- 1 is the starting population. 1+0.2=1.2 is the rate at which it grows each day.

Step-by-step explanation:

Marco's equation should be $10(2^{d})$ since the bacteria double each day. 10 is the starting value of the population. 2 is the growth rate of "double each day" with d as an exponent. This will double each day because:

Day 1 is $2^{1}=2$

Day 2 is $2^{2}=4$

Day 3 is $2^{3}=8$

Day 4 is $2^{4}=16$

You'll notice the value doubles each day.

Isabella has a different equation because her population increases by a percentage. We use the simple interest formula to calculate the bacteria's daily increase or interest.

1(1+0.2)d

1 is the starting population.

1+0.2=1.2 is the rate at which it grows each day.

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4 years ago

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