Describe two reasons for using a variable. Write your response using 4-5 complete sentences.

1 answer:

6 0

One reason would be if you did not know the answer so you could do
4-5=x
another reason would be if the problem gave you the answer but not one of the things to get the answer
4-x=-1
not sure if that is what you want but I hope this helped

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What is -3i-4=i+3 in

lara31 [8.8K]

Answer:

-3i - 4 = i + 3

-3i - i = 3 + 4

-4i = 7

i = 7/-4 or -7/4

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3 years ago

A store sells rope by the meter. The equation p=0.8L represents the price p(in dollars) of a piece of nylon rope that is L meter

Margaret [11]

Answer:

1. $0.80 or 80 cents

2. 1.25 meters

Step-by-step explanation:

The equation p=0.8L represents the price p (in dollars) of a piece of nylon rope that is L meters long.

1. To find how much the nylon costs per meter, take L = 1 (this means you are calculating the price of a piece of nylon rope that is 1 meter long):

$L=1,\\ \\p=\$0.8\cdot 1=\$0.80$

2. To find how long a piece of nylon rope that costs $1.00 is, substitute into the equation p = 1:

$p=1,\\ \\1=0.8L\\ \\L=\dfrac{1}{0.8}=\dfrac{10}{8}=\dfrac{5}{4}=1.25\ meters$

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3 years ago

Factor the linear expression 16p- 24 using the greatest common factor of

horsena [70]

The Answer should be A

8 0

3 years ago

Read 2 more answers

Libreng puntoss<br>yeeah

Doss [256]

<h2>THANK YOU PO</h2>

PA BRAINLIEST

6 0

2 years ago

Read 2 more answers

Rewrite with the LCD

anygoal [31]

1/4 + 3/8

Rewrite with the LCD (lowest common denominator)

Remember : the denominator is just the bottom number on a fraction.

Let's look at both of our given fractions denominator's.

4 & 8 → What do both of these numbers have in common? They both go into 8!

How many times does 4 go into 8? → Twice

How many times does 8 go into 8? → Once

So, because of that, we must multiply the top number (numerator) of each fraction with either one, or two.

First fraction : 1/4 × 2/2 =2/8 → So, our first fraction changes.

Second fraction : 3/8 × 1/1 = 3/8 → However, our second fraction changes.

So, our new question looks like this : 2/8 + 3/8

If you wanted us to answer this question, we simply need to add the top numbers (numerators) with one another because both fractions have the same bottom numbers (denominators).

2 + 3 = 5

So, our answer is 5/8 and our question rewritten with the LCD is : 2/8 + 3/8

~Hope I helped!~

6 0

3 years ago