Answer:
C. Multiply the first equation by 3/2 and subtract the second equation
Step-by-step explanation:
Answer: y = -10
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Explanation:
There are two ways to solve this.
The first way is to divide both sides by -3 and then subtract 5 from both sides
-3(y+5) = 15
(-3(y+5))/(-3) = 15/(-3) ... divide both sides by -3
y+5 = -5
y+5-5 = -5-5 ... subtract 5 from both sides
y = -10
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Or we can distribute first, then add 15 to both sides, and finally divide both sides by -3
-3(y+5) = 15
-3(y)-3(5) = 15 ... distribute
-3y-15 = 15
-3y-15+15 = 15+15 ... add 15 to both sides
-3y = 30
-3y/(-3) = 30/(-3) ... divide both sides by -3
y = -10
Either way we get the same answer
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Let's check the answer
-3(y+5) = 15
-3(-10+5) = 15 ... replace y with -10
-3(-5) = 15
15 = 15
We get a true equation at the end after plugging in y = -10, so we have confirmed the answer
Don't you mean, "Which is smallest of the following numbers?"
Converting all those fractions into decimal fractions would be the fastest way to go, for me at least.
0.67
0.75
1.50
0.60
2.67
0.875 It's pretty obvious that 0.60 (3/5) IS THE SMALLEST fraction here.