All categories

2 years ago

Find the solution to the following system using substitution or elimination:

Mathematics

2 answers:

Olegator [25]2 years ago

6 0

Answer:

Step-by-step explanation:

y = - x + 10 → (1)

y = 7x + 2 → (2)

Substitute y = 7x + 2 into (1)

7x + 2 = - x + 10 ( add x to both sides )

8x + 2 = 10 ( subtract 2 from both sides )

8x = 8 ( divide both sides by 8 )

x = 1

Substitute x = 1 into either of the 2 equations and solve for y

Substituting into (2)

y = 7(1) + 2 = 7 + 2 = 9

solution is (1, 9 ) → B

Mekhanik [1.2K]2 years ago

6 0

The answer is b have a great day

You might be interested in

In the period of the development of measurement uses body parts?

vesna_86 [32]

Umm 4.67 is and Avila so6.779 is going to bet that answer

7 0

3 years ago

What is 1/3 add 1/4

Harrizon [31]

$\frac{1}{3} + \frac{1}{4} = \frac{1\times 4}{3\times 4} + \frac{1\times 3}{4\times 3} = \frac{4}{12} + \frac{3}{12} = \frac{4+3}{12} = \boxed{\frac{7}{12}}$

6 0

2 years ago

Read 2 more answers

Bob and Billy got 27 fish together. If Bob got 2× as many fish as Billy how many fish did Bob catch and how many fish did Billy

Margaret [11]

Billy caught 9 fish
Bob caught 18 fish

3 0

3 years ago

Lena and Ras drive to work. Lena drives 24 miles in 1.5 hours. Ras drives 36 km in 1 hour 15 min. Work out the difference betwee

Rudiy27

Answer:

Difference = 3.2 km/h

Step-by-step explanation:

Given that,

Lena drives 24 miles in 1.5 hours. Ras drives 36 km in 1 hour 15 min.

For average speed of Lena,

d = 24 miles = 38.4 km

t = 1.5 h

$v=\dfrac{38.4}{1.5}= 25.6\ km/h$

For average speed of Ras,

d = 36 km

t = 1h 15 min = 1.25 h

$v=\dfrac{36}{1.25}=28.8\ km/h$

Difference = 28.8-25.6

= 3.2 km/h

So, the difference between their average speed is 3.2 km/hr.

7 0

2 years ago

Which decimal is equivalent to 1 80/333

Kay [80]

1 80/333 is about 1.24
the full decimal is 1.24024024... etc

6 0

2 years ago

Read 2 more answers