4 years ago

0.9x-2.1+0.9=0.2(5-x)

1 answer:

7 0

.9x-2.1+.9=.2(5-x) multiply .2(5-x)
.9x-2.1+.9=1-.2x; add - 2.1 + .9
.9x-1.2=1-.2x; cancel -2x by adding it by itself and add it on the .9x
1.1x-1.2=1; cancel -1.2 by adding it by itself and add it on the 1
1.1x=2.2; divide 1.1 so it can be canceled and then on 2.2
x=2 :)

You might be interested in

A delivery person uses a service elevator to bring boxes of books up to an office delivery person weighs 140 pounds in each box

Y_Kistochka [10]

Answer:

nanusjvsbkiiahvvwkakhvsbbakmmms

5 0

3 years ago

Help please I need this now

professor190 [17]

Answer:

what is the question i cat help without the question

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Simplify. 3√-28 A 2i√7 B 12i√7 C 61√7 D -6i√7

netineya [11]

Answer:

Step-by-step explanation:

We want to simplify the expression:

$\displaystyle 3 \sqrt{-28}$

Rewrite:

$\displaystyle = 3 \sqrt{ 4\cdot 7 \cdot -1}$

Rewrite:

$\displaystyle = 3 \cdot \sqrt{4} \cdot \sqrt{7} \cdot \sqrt{-1}$

Simplify. Let i = √(-1). Hence:

$\displaystyle = 3 \cdot \left(2\right) \cdot \left(i\right) \cdot \sqrt{7}$

Multiply:

$\displaystyle = 6i\sqrt{7}$

In conclusion, our answer is C.

7 0

3 years ago

Write expressions that represent the horizontal and vertical side lengths of the triangle.

Elodia [21]

Answer:

happy and sad

Step-by-step explanation:

5 0

3 years ago

The Wall Street Journal recently published an article indicating differences in perception of sexual harassment on the job betwe

Leona [35]

Answer:

$H_0: \pi_W-\pi_M=0\\\\H_a:\pi_W-\pi_M> 0$

Step-by-step explanation:

This is a hypothesis test for the difference between proportions.

The claim is that the proportion of women who think sexual harassment is a major problem in the American workplace is significantly higher than the proportion of men.

Then, the alternative hypothesis will state that the women proportion pW is significantly bigger than the proportion of men pM.

On the contrary, the null hypothesis will state that the proportion pW is nos significanlty bigger than pM.

Then, the null and alternative hypothesis can be written as:

$H_0: \pi_W-\pi_M=0\\\\H_a:\pi_W-\pi_M> 0$

4 0

4 years ago