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2 years ago

Select the best method of finding an accurate solution to a system of linear equations.

Mathematics

1 answer:

a_sh-v [17]2 years ago

3 0

Answer:

Substitution. Substitution is a good method to use when one of the variables is isolated in the equation or the coefficient of one of the variables is 1 or -1. When you isolate that variable to substitute into the other equation, you will not be introducing additional fractions into the problem.

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What is the equation of this line in point-slope form AND slope intercept form <br><br> please help

Sphinxa [80]

Point slope form: y-3=-3/5(x+2)
Slope intercept form: y=-3/5x+9/5

6 0

2 years ago

The population of Maricopa County has been increasing for the past few decades. In 2016, the Maricopa County population is appro

maria [59]

Answer: 3,965,481

Step-by-step explanation:

Given: In 2016, the Maricopa County population is approximately 3.817 million.

i.e. Initial population= 3.817 million =3,817,000

Of the population increases from the current population by 3.89 % over the next 5 years,

Population increased = 3.89% of 3,817,000

= 0.0389 (3817000)

= 148481.3 ≈ 148481

Population in 2021= 3,817,000 +148,481 =3,965,481

Hence, the population in 2021 = 3,965,481

3 0

3 years ago

8th Grade Homework-

ahrayia [7]

Answer:

d option

Step-by-step explanation:

of course it is Charlie as he just walked 11.8 miles

please mark me as brainlist

5 0

3 years ago

In 6-8, each table represents a linear relationship. Use the slope formula to find the slope or rate of change shown in each tab

dimaraw [331]

The slopes of the relationships are given as follows:

6. 5.

7. 1.

<h3>What is the complete question?</h3>

The problem is incomplete, as the tables are not readable, but researching it on a search engine, we find that:

For item 6, we have points (2,8) and (6,28).

For item 7, we have points (-6,5) and (4,10).

<h3>How to find the slope of a line given two points?</h3>

Given two points in the format (x,y), the slope of the line is given by change in y divided by change in x.

Hence, the slopes for each problem are given as follows:

6. m = (28 - 8)/(6 - 2) = 20/4 = 5.

7. m = (10 - 5)/(4 - (-6)) = 10/10 = 1.

More can be learned about the slope of a line at brainly.com/question/24808124

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5 0

1 year ago

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Gina sells 216 cakes in the ratio small :medium:large 5:7:12. The profit for one medium cake is twice the profit for one small c

Rus_ich [418]

To answer this question you need to first set up the small, medium, large number of cakes as a ratio with a total. From here you will create a new ratio of the correct number of small medium and large Cakes sold using the total 216. The factor would be to multiply by nine. -Step 1 in picture. After this you would read what the relationship is between a medium and a small and the large and the small profits are - Step 2 in picture. After this you would represents the total profit based on the number of small medium and large cakes that were sold. Making this equal to L648.45. To find the profit for one small, you would then divide 648.45 by the 495 you got when you simplify the expression. The answer is L1.31.

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3 years ago

Read 2 more answers