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julia-pushkina [17]
3 years ago
11

What is the answer to (X+3)(-x-2)=y

Mathematics
1 answer:
Misha Larkins [42]3 years ago
3 0

Answer:

-x^2-5x-6

Step-by-step explanation:

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1 ball of wool is 125m, how many balls are there with 604m??
forsale [732]

Answer:

4.8 balls of wool

Step-by-step explanation:

604÷125=4.8

6 0
2 years ago
Mrs. Haddox is mailing a package that weighs 18.5 pounds. The post office charges by the ounce to mail a package. How much does
Helen [10]

Answer:

296 ounces

Step-by-step explanation:

I used the formula "Multiply the mass value by 16"

Hope this helps:)

5 0
3 years ago
Read 2 more answers
what is the value of the x variable in the solution to the following system of equations? 2x 2y = 6 x 3y = −1 a. −2 b. 2 c. 5 d.
tatuchka [14]
2x + 2y = 6 . . . . . (1)
x + 3y = -1 . . . . . (2)

(1) x 3 => 6x + 6y = 18 . . . . . (3)
(2) x 2 => 2x + 6y = -2 . . . . . (4)

(3) - (4) => 4x = 20
x = 20/4 = 5
7 0
3 years ago
Answer the following questions.<br> (a) What percent of 80 is 44?<br> (b) What number is 45% of 40?
Pavlova-9 [17]

Answer:

a. 55%

b. 22

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Jerry solved the system of equations. x minus 3 y = 1. 7 x + 2 y = 7. As the first step, he decided to solve for y in the second
Reika [66]

Answer:

A. The variable x in the first equation has a coefficient of one so there will be fewer steps to the solution.

Step-by-step explanation:

Given

Equation\ 1: x - 3y = 1

Equation\ 2: 7x + 2y = 7

Required

Efficient way of solving the equations

<em>The efficient way of solving this problem is by solving for x in the first equation because it has a coefficient of 1;</em>

The evidence is shown as follows;

<em>Make x the subject of formula in equation 1</em>

x = 1 + 3y

<em>Substitute 1 + 3y for x in equation 2</em>

7x + 2y = 7

7(1 + 3y) + 2y = 7

<em>Open bracket</em>

7 + 21y + 2y = 7

7 + 23y =7

<em>Make y the subject of formula</em>

23y = 7 - 7

23y = 0

<em>Divide both sides by 23</em>

\frac{23y}{23} = \frac{0}{23}

y = 0

Recall that x = 1 + 3y

<em>Substitute 0 for y in the above expression</em>

x = 1 + 3(0)

x = 1 + 0

x = 1

Solving for y in the second equation will take more steps

6 0
3 years ago
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