All categories

2 years ago

What did they do wrong?

Mathematics

1 answer:

Tatiana [17]2 years ago

5 0

They didn’t distribute the -1 (which is the “-”) correctly into the numbers in the parentheses. After distributing correctly, step 1 should be
8a+3+5a-2a

Hope this helps :)

You might be interested in

Can you guys help me with this please???

almond37 [142]

Answer:

y=-25x+225

Step-by-step explanation:

The slope is -25 and I think the y-intercept is 225.

Hope this helps.

5 0

3 years ago

Write using exponents 4x4x4x4x4x4x44x4x4x4x4x4x4

Svetradugi [14.3K]

Answer:

184,549,376

Step-by-step explanation:

3 0

3 years ago

Help much appreciated ):

sweet-ann [11.9K]

Answer

Step-by-step explanation:

help much appreciated ):help much appreciated ):help much appreciated ):help much appreciated ):help much appreciated ):help much appreciated ):help much appreciated ):help much appreciated ):help much appreciated ):help much appreciated ):help much appreciated ):help much appreciated ):help much appreciated ):help much appreciated ):help much appreciated ):help much appreciated ):help much appreciated ):help much appreciated ):help much appreciated ):help much appreciated ):help much appreciated ):help much appreciated ):help much appreciated ):help much appreciated ):help much appreciated ):help much appreciated ):help much appreciated ):help much appreciated ): hope this helps leave a heart c:

7 0

2 years ago

I need help! Will mark Brainliest for full answer!!!

Softa [21]

Answer:

Part a .............> x = 11

Part b .............> k = 57.2

Part c .............> y = 9.2

Explanation:

The three problems deal with inverse variation between two variables

An inverse variation relation between two variables means that when one of the variables increases, the other will decrease (and vice versa)

Mathematically, an inverse variation relation is represented as follows:

$y = \frac{k}{x}$

where x and y are the two variables and k is the constant of variation

Now, let's check the givens:

Part a:

We are given that y = 3 and k = 33

Substitute in the original relation and solve for x as follows:

$y = \frac{k}{x}\\ \\3 = \frac{33}{x}\\ \\x=\frac{33}{3}=11$

Part b:

We are given that y = 11 and x = 5.2

Substitute in the original relation and solve for k as follows:

$y=\frac{k}{x}\\ \\11=\frac{k}{5.2}\\ \\k=11*5.2=57.2$

Part c:

We are given that x=7.8 and k=72

Substitute in the original relation and solve for y as follows:

$y=\frac{k}{x}=\frac{72}{7.8}=9.2$ to the nearest tenth

Hope this helps :)

6 0

3 years ago

What is an example of a rate of change

nekit [7.7K]

When you have lines in graphs for ex

Y=2x+7
2x is the rate of change

7 is the instant amt if the x=0 (or the y-intercept)

6 0

3 years ago