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alexandr402 [8]
3 years ago
7

How do we figure out the value of a variable?

Mathematics
2 answers:
mafiozo [28]3 years ago
8 0

Answer:

To figure out the value of a variable you plug it into an equation solve for it using the equation around it.

Margaret [11]3 years ago
5 0

Answer:

Step-by-step explanation:

Solve for the unknown variable(number) by moving everything to the other side of the equation.

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svlad2 [7]
What’s something goes up but never comes down?
6 0
3 years ago
Please help and explain process too. Thank you!! ​
sergey [27]
The answer is x^2+2x-5

7 0
2 years ago
Should you flip the inequality sign in this problem?<br> -9x + 27 = -13<br> Yes no
Angelina_Jolie [31]

Answer:

Step-by-step explanation:no you should not

-9x+27=-13

-9x-27=13

-9x=18

-2=x

3 0
3 years ago
Read 2 more answers
John runs 4 miles in 30 minutes. at the same rate, how many miles would he run in 48 minutes?
dimulka [17.4K]
Make a ratio, then cross multiply.

4/30=x/48

30x=4x48
30x=192
x=6.4
3 0
3 years ago
The tables below show running hours of three printers that produce greeting cards and the total number of greeting cards produce
AysviL [449]

<u>ANSWER</u>

The correct answer is A


<u>EXPLANATION</u>



To find the ink cost of each card coming from printer  B, we need to find the total cost from printer B and the total number of cards printed by Printer B.


The total hours of all the three printers over the three weeks

=40+45+55+50+50+30+45+40+60=415


The total hours of printer B only

=50+50+30=130


Total number of cards produced over the three weeks


=7950+7800+9600=25350


We can use ratio and proportion to determine the total cards produce by printer B only.


415:25350


130:x


If less, more divides


x=\frac{130\times 25350}{415} \approx7941


Total cost of Printer B in 130 hours

$=130 \times 15=1950


The ink cost

=\frac{1950}{7941}


=0.2456


$\approx 0.30

to 2 decimal places

8 0
3 years ago
Read 2 more answers
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