Answer:
Junior is 11 and Grandpa is 59
Step-by-step explanation:
G = 6J - 7 Get G by itself
G + J = 70
- J -J
G = -J + 70 Set the two equations equal to each other
6J - 7 = -J + 70
+J +J Add J to both sides
7J - 7 = 70
+ 7 +7 Add 7 to both sides
7J = 77 Divide both sdies by 7
J = 11
If this answer is correct, please make me Brainliest!
8. complementary angles = 90°
3x+3+10x-4 = 90
13x-1 = 90
13x = 91
so x = 91/13= 7
then K = 3(7)+3 = 24°
so L = 10(7)-4 = 70-4 = 66°
9. P is three less than twice of Q
so P = 2Q-3
supplementary angles = 180°
P+Q = 180
(2Q-3)+Q = 180
3Q-3 = 180
3Q = 183
so Q = 183/3 = 61°
then P= 2(61)-3 = 122-3 = 119°
10. B is two more than three times of C so B= 3C+2
complementary angles = 90°
B+C= 90
(3C+2)+C=90
4C+2=90
4C= 88
so C= 22°
then B = 3(22)+2= 66+2 = 68°
It would be B. I took a test with this
The 'i' should go in front of the square root, not inside it.
So the answer should be 
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The way they wrote the expression 
is bit misleading as it might imply that the 'i' is under the square root. However the square root ends after the "5". It might be better to say 
so there is clearer separation. But sticking the "i" in front is also a valid option.
side note: the plus minus part is already handled so there's no need to worry about that.
