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elena-s [515]
3 years ago
11

Can you solve a system by substitution without a given variable?

Mathematics
1 answer:
VMariaS [17]3 years ago
5 0
I think so. But, the only way you can simplify is is if you add the like terms, in this case, -4x and -11x. #1 will simplify to -15x=36. you cannot simplify the other one any further. <span />
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PLEASE HELP!!! ILL GIVE BRAINLIEST !!
ioda

Answer:

4532

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Solve for x. will give brailiest<br><br> 2x + 5 = 27<br><br> 8.5<br><br> 11<br><br> 16<br><br> 64
Rama09 [41]
<span>2x + 5 = 27
subtract 5 to both sides
2x + 5 - 5 = 27 - 5
simplify
2x = 22
divide both sides by 2
2x/2 = 22/2
simplify
x = 11

answer is </span><span>11 (second choice)
</span>
hope that  helps
4 0
3 years ago
Which equation can you use to solve for the volume of the cake?
lesantik [10]

Answer:

C. (40 × 60 × 10) + (30 × 60 × 10) = V

Step-by-step explanation:

Picture of the cake can be found in the attachment below :

To solve, we resolve the cake into two distinct boxes :

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Overall volume:

(60 * 30 * 10) + (10 * 60 * 40)

7 0
3 years ago
Alexandra and Stephanie are sisters, and they're saving their money to buy a used car. Together they have more than $2,500, and
Vilka [71]

Answer:

Stephanie has more than $900

Step-by-step explanation:

Represent the unknowns:  a for Alexandra and s for Stephanie.

Then a + s > $2,500, and a = s + $700.

Substituting the latter into the former equation, we get:

(s + $700) + s > $2,500, or

2s > $1800

Then s > $900; Stephanie has more than $900.

7 0
2 years ago
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oksian1 [2.3K]

Answer:

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Step-by-step explanation:

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8 0
2 years ago
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