C.
The negative (-) means that you are losing 17 of something.
in I and II you are also losing 17 things. I you are losing 17 dollars and II you are losing 17 yards. III, however, you are gaining 17 degrees so it is not the answer.
Answer:
14.91288 miles
Step-by-step explanation:
We can use a proportion to solve this problem. Put the distance over the cost. We want our answer in miles so we need to convert 8 kilometers to miles. 1 km = .621371 miles
8 km * .621371 miles/ 1 km = 4.971 miles
4 .971 miles x miles
--------------------- = ------------------
10 dollars 30 dollars
Using cross products
4.971 * 30 = 10x
149.1288= 10 x
Divide by 10 on each side
149.1288/10= 10/10 x
14.91288 =x
1)Correct answer :
375 = x - 28
x = 375 + 28
= 403
The student had subtracted 48 from 375 to get 327 instead of adding 28 to 375 to get 403.
2) 0.66 - 0.57 = 0.09
0.75 - 0.66 = 0.09
0.84 - 0.75 = 0.09
So the successive number must be +0.09 of the previous number
0.84 + 0.09 = 0.93
0.93 + 0.09 = 1.02
1.02 + 0.09 = 1.11
X^2+13x=-42
x^2+13x+42=0
(x+6)(x+7)=0
X=-6,-7