So,
1/4(3c + 5) + -1/2(2c + 3) = 1/2
First, we distribute to get rid of the parentheses. (PEMDAS)
3/4c + 1 1/4 - c - 1 1/2 = 1/2
Now, we collect like terms.
-1/4c - 1/4 = 1/2
Add 1/4 to both sides.
-1/4c = 3/4
Now, multiply by the reciprocal (-4/1).
c = -3
Check your answer.
1/4(3[-3] + 5) + -1/2(2[-3] + 3) = 1/2
1/4(-9 + 5) + -1/2(-6 + 3) = 1/2
-2 1/4 + 1 1/4 + 3 - 1 1/2 = 1/2
-1 + 1 1/12 = 1/2
1/2 = 1/2
The third equation is the correct one. After 100 years, about 115 grams will remain.
Answer:
1.25$/per quart of oil. 14.05 starting fee.
Step-by-step explanation:
Give a variable that one quart of oil is o.
5o + starting fee +2.5 = 7o + starting fee
2o = 2.5
o = 1.25
substitute and we know starting fee is 14.05
Answer:
A. 14
Step-by-step explanation:
we subtract 200.39 from our total cost, which gives us 1,079.54 and then we divide by the amount she earns a week, 77.11. to get 14. it will take riley 14 weeks to have enough money to get the television.
Answer:
ans is behind it
Step-by-step explanation:
hope it helps uh
