Two times one number added to three times a second number is 21.
1 answer:
Answer:
Step-by-step explanation:
"Two times one number added to three times a second number is 21.
2x + 3y = 21
"The second number is ten less than five times the first number"
y = 5x-10
Substitution
2x+3(5x-10) = 21
2x + 15x - 30 = 21
17x = 51
x = 3
y = 5x-10 = 5
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Step-by-step explanation:
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Answer:
300!! I think...
Step-by-step explanation:
30 x 10 = 300
Are there any multiple choice answers?
