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3 years ago

I will give you a brainliest if your answer is correct. answer question 18

Mathematics

1 answer:

velikii [3]3 years ago

5 0

Ig c.16

random question what grade are you in?

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Alice wants to buy some paper towels. She has two options. She can either buy a package of four rolls or she can buy one roll no

mart [117]

The 4 pack is better because it can save a trip back to the store

6 0

3 years ago

I've done the y = equations but I don't know how to do this one.

Tems11 [23]

Consider the equation

$-10x-y=-20$

1) First row of the table

Set x=0 and solve as follows:

$\begin{gathered} -10(0)-y=-20 \\ \Rightarrow-y=-20 \\ \Rightarrow y=20 \end{gathered}$

The answer is y=20 and the pair x-y is (0,20)

2) Second row

Set x=1 and solve, as follows:

$\begin{gathered} -10(1)-y=-20 \\ \Rightarrow-10-y=-20 \\ \Rightarrow-y=-10 \\ \Rightarrow y=10 \end{gathered}$

The answers are y=10 and (1,10)

3) Third row.

Set y=0 and solve as follows:

$\begin{gathered} -10x-(0)=-20 \\ \Rightarrow-10x=-20 \\ \Rightarrow x=\frac{20}{10}=2 \\ \Rightarrow x=2 \end{gathered}$

The answers are x=2 and (2,0)

6 0

1 year ago

Which one of the following reasons does NOT explain why 4x+5y≠9xy?

viva [34]

<h3>The terms 4x and 5y has different variable present in it. $4x + 5y \neq 9xy$ </h3>

<em><u>Solution:</u></em>

Given that,

$4x + 5y \neq 9xy$

<em><u>The reason is:</u></em>

When we are adding terms which has exactly the same variables, we must add the constants and let the result stand with variable

Which means,

4x + 10x = 14x

But,

We cannot add terms that has different variable

Which means,

4x + 5y

Here, both the terms 4x and 5y has different variable present in it. Hence they cannot be added together

$4x+5y\neq 9xy$

6 0

3 years ago

The tree in milan's backyard is 8.4m high. how high is it in centimeters? be sure to include the correct unit in your answer.

Alex787 [66]

840 centimeters ...there 100 centimeters in one meter

5 0

3 years ago

Vanessa uses the expressions (3x2 + 5x + 10) and (x2 – 3x – 1) to represent the length and width of her patio. Which expression

Brut [27]

The area of rectangle with length l and width w is

$A=l\cdot w.$

If the length of rectangle is expressed as $l=3x^2 + 5x + 10$ and the width of rectangle is expressed as $w=x^2-3x-1$ , then the area of rectangle is

$A=(3x^2 + 5x + 10)(x^2-3x-1)=3x^4-4x^3-8x^2-35x-10.$

8 0

4 years ago

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