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mojhsa [17]
3 years ago
8

X + y = 8 3x - y = 12

Mathematics
1 answer:
Virty [35]3 years ago
7 0

Answer:

x = 5 and y = 3

Step-by-step explanation

y crosses out so you are left with

4x = 20 (divide by 4)

x = 5

plug x into either equation

5 + y = 8 (subtract 5)

y = 3

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What is the value of x? <br> -2/7x+6+1/7x=18 <br> x=
Alenkinab [10]
- \frac{2}{7} x + 6 + \frac{1}{7} x = 18

First, simplify \frac{2}{7} x to \frac{2x}{7} / Your problem should look like: -\frac{2x}{7} + 6 + \frac{1}{7} x = 18
Second, simplify \frac{1}{7} x to \frac{x}{7} / Your problem should look like: - \frac{2x}{7} + 6 + \frac{x}{7} = 18
Third, simplify - \frac{2x}{7} + 6 + \frac{x}{7} to - \frac{x}{7} + 6 / Your problem should look like: -\frac{x}{7} + 6 = 18
Fourth, regroup terms. / Your problem should look like: 6 - \frac{x}{7} = 18
Fifth, multiply both sides by 7. / Your problem should look like: 42 - x = 126
Sixth, subtract 42 from both sides. / Your problem should look like: -x = 126 - 42
Seventh, simplify 126 - 42 to 84. / Your problem should look like: -x = 84
Eighth, multiply both sides by -1. / Your problem should look like: x = -84

Answer: x = -84

4 0
3 years ago
Can check if correct p.ease??????
BARSIC [14]
You're correct dear. Good Job.
7 0
3 years ago
Renee was able to plant 15 plant in 5min at this rate how many flowers could she paint plant in 45 min
Sedbober [7]

Answer:

Answer is 135 plant

Step-by-step explanation:

We have given that,

In 5 min Renee can plant 15 plant.

That means in one minute Renee can plant \frac{15}{5} plant.

i.e. Rate of planting = 3 plant per minute

So, In 45 minutes , she can plant  45×3 plant

i.e Plant she can plant in 45 minute = 135 plant

6 0
2 years ago
Match the vocabulary word to its correct definition.
aleksklad [387]

Answer:

  1. zeros of polynomials -- x-values for which the value of the polynomial is zero

  2. quartic polynomial -- fourth degree (polynomial)

  3. irreducible -- cannot be factored

  4. leading coefficient -- coefficient of the term with the highest power

  5. end behavior -- the direction of a graph for very large positive and negative values of x

  6. leading term -- the term in a polynomial with the highest power

  7. cubic polynomial -- third degree (polynomial)

Step-by-step explanation:

These are definitions. They need no explanation.

7 0
3 years ago
HELP ASAP
4vir4ik [10]

Answer:

1. 45

2. 24

3. 32

Step-by-step explanation:

One

Ashley= 3/4 * Steve

Ashley= 3/4 * 60

Ashley = 180/4

Ashley =   45

Two

60% of 40

60/100 * 40

2400/100 = 24

Three

40% 80 = 40/100 * 80 = 3200 / 100 = 32

5 0
2 years ago
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