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3 years ago

Question 4: What is the solution of the system? * .A .B .C .D

Mathematics

1 answer:

DedPeter [7]3 years ago

4 0

Answer:

Step-by-step explanation:

x+4y=-12

x+7y=-15

subtract

-3y=3

y=-1

x+4(-1)=-12

x=-12+4=-8

so point is (-8,-1)

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Evaluate the expression 5(-3) using a number line.

MArishka [77]

Answer: -15

Step-by-step explanation:

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2 years ago

Read 2 more answers

R / 5 - 6 equal negative 1

Fofino [41]

Answer:

R = 25

Step-by-step explanation:

Given

$\frac{R}{5}$ - 6 = - 1

Multiply through by 5 to clear the fraction

R - 30 = - 5 ( add 30 to both sides )

R = 25

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4 years ago

Help i don’t know how to do this

lyudmila [28]

Answer:

ok so first you add all the prices together.

$9:00+$7:00+$8:00+$6:00+$4:00=34

then divide 34 by the number of prices.

34/5

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Step-by-step explanation:

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3 years ago

What does it mean for two fractions to be equivalent? For two ratios to be equivalent?

poizon [28]

Answer:

Equivalent fractions and ratios mean that when simplified, they are the same one fraction or ratio. see examples below.

Step-by-step explanation:

For example, the fraction 1/2 is the same as 2/4 or 15/30 because when you simplify them, they are still 1/2. Therefore they are equivalent.

For example, the ratio 1:2 is the same as 5:10 or 10:20 since when broken down they all come down to 1:2. Hence they are equivalent.

Hope this answers your question.

3 0

3 years ago

Using your answer from the previous question, state the value of 't' if Josephine is going to run a dis-

gogolik [260]

Using the relation between velocity, distance and time, it is found that t = 3 hours.

<h3>What is the relation between velocity, distance and time?</h3>

Velocity is <u>distance divided by time</u>, hence:

$v = \frac{d}{t}$

For this problem, the parameters are given as follows:

d = 15 miles, v = 5 mph

Hence the time in hours is found as follows:

$v = \frac{d}{t}$

$5 = \frac{15}{t}$

5t = 15

t = 15/5

t = 3 hours.

More can be learned about the relation between velocity, distance and time at brainly.com/question/24316569

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8 0

2 years ago