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wariber [46]
3 years ago
12

Using the equation y = 2x + 5, what would the input need to be for an output of -15?

Mathematics
2 answers:
vfiekz [6]3 years ago
4 0

Answer:

x = -10

Step-by-step explanation:

y = 2x + 5

-15 = 2x + 5

-20 = 2x

-10 = x

Ad libitum [116K]3 years ago
4 0

Answer:

-10

Step-by-step explanation:

y = -10

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A train travels 250 km with a average speed of 75 km/hr and 350 km with 70km/hr and 200 km with average speed of 30km/hr. What w
pentagon [3]

Answer:

53 1/3 km/h

Step-by-step explanation:

average speed = (total distance)/(total time)

average speed = distance/time

time * average speed = distance

time = distance/(average speed)

250 km at 75 km/h

distance = 250 km

time = (250 km)/(75 km/h) = 3.33333... hours

350 km at 70 km/h

distance = 350 km

time = (350 km)/(70 km/h) = 5 hours

200 km at 30 km/h

distance = 200 km

time = (200 km)/(30 km/h) = 6.6666...  hour

total distance = 250 km + 350 km + 200 km = 800 km

total time = 3.33333... hours + 5 hours + 6.66666... hours = 15 hours

average speed = (total distance)/(total time)

average speed = (800 km)/(15 hours)

average speed = 53 1/3 km/h

3 0
3 years ago
Which equation represents the line with a slope of 2/5 and a y-intercept of (0,-3)?
lutik1710 [3]
This is the answer y= -x+3
5 0
3 years ago
Look at the photo and solve what goes in the boxes that say choose.
lawyer [7]

Answer:

120

Step-by-step explanation:

Split up the boxes to help you achieve the answer.

3 0
3 years ago
Find slope line through (2,-3) (5,-3)
maw [93]

Answer: the slope is 0

Step-by-step explanation: hope it helps

5 0
3 years ago
Mason's annual income is $42,500. He receives an increase of 3.5% every year
Marysya12 [62]

The function that models Mason's yearly income is 42,500(1  + 0.035)^x.

Mason's income after 5 years would be $48,084.85.

<h3>What would be Mason's income after 5 years?</h3>

The function that models Mason's income is an exponential function that has the form:

p(1 + r)^x

Where:

  • r = percentage increase
  • x = number of years
  • p = present income

42,500(1  + 0.035)^x

Income after 5 years: 42,500(1  + 0.025)^5 = $48,084.85

To learn more about exponential functions, please check: brainly.com/question/26331578

#SPJ1

7 0
2 years ago
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