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REY [17]
3 years ago
6

Solve the system by substitution -8x+y=-9 y=7

Mathematics
1 answer:
aleksandr82 [10.1K]3 years ago
6 0
In point for (2,7) and in Equation form x=2 y=7
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Mr. Jackson sold 3 computer monitors in the first year. In the second year, he sold 4 times as many monitors as in the first yea
GenaCL600 [577]

Answer:

There wasn't really a question here but for both the answers is

for year 2 we got 12 sales

for year 3 we got 18 sales

Step-by-step explanation:

since the first year Mr.Jackson sold 3 computer monitors then in the second year he must've multiplied the times he had sold it which means 4 x 3 which equals 12

as well as the third year, on the third year he sold 6 times the first year so it means 6 x 3 which equals 18

8 0
3 years ago
Read 2 more answers
marie plans to trick are treat with maury friend whitney it takes marie 20 minutes to put on maury costume 15 minutes to eat din
Valentin [98]

Answer: 5:50

Step-by-step explanation:

20+15+5=40. 6:30 minus 40 min is 5:50

8 0
2 years ago
In one month Kimberly earned $500 at her part-time job, and $50 was withheld for federal income tax. Suppose she earns $750 next
djverab [1.8K]

Answer:

<em>It will be withheld $75 for federal income.</em>

Step-by-step explanation:

<u>Proportions</u>

Assuming the federal income tax is proportional to the earnings, we can establish the following relationship between the income tax (T) and the earnings (E):

T = k.E

Kimberly earned E=$500 and paid T=$50 for federal income tax, With this information, we can calculate the value of k:

50 = k ( 500)

k = 50 / 500

k = 0.1

The model is now:

T = 0.1*E

If Kimberl earns $750 next month, the tax will be:

T = 0.1*($750)

T = $75

It will be withheld $75 for federal income.

8 0
3 years ago
What is the solution to the system of equations graphed below?
Vikentia [17]

Answer:

A) (1,-2)

Step-by-step explanation:

the answer to a system of equations is where the 2 lines intersect and that would be at (1,-2)

8 0
3 years ago
What does an arrow as an endpoint
ad-work [718]

Answer:

Step-by-step explanation:

Another way to identify the domain and range of functions is by using graphs. Because the domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the x-axis. The range is the set of possible output values, which are shown on the y-axis

7 0
3 years ago
Read 2 more answers
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