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max2010maxim [7]
4 years ago
8

How many solutions does y+x=5 5x+5y=25 have?

Mathematics
2 answers:
pentagon [3]4 years ago
7 0

Answer:

B is the answer.

Step-by-step explanation:

Given equations y + x = 5 and 5x + 5y = 25.

These equations have infinetely many solutions because they are equivalent.

This can be proven by the multiplicative property of equality and the commutative property of addition.

y + x = 5 → y × 5 + x × 5 = 5 × 5 [multiplicative property of equality] → 5y + 5x = 25 → [commutative property of addition] 5x + 5y = 25.

Vladimir [108]4 years ago
5 0
The answer is C hope I helped
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3 years ago
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8 0
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Read 2 more answers
What is the value of the expression 10 + (fraction 1 over 2)4 ⋅ 48?
EleoNora [17]
 Equation arrangement: 10 + [1/2]^4. 48
[1/2]^4 = 1/2 * 1/2 * 1/2 * 1/2 = 1/16
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