Answer:
QSR = 68º
Step-by-step explanation:
TSQ + QSR = TSR
15x + (10x - 2) = 173
Combine like terms
25x = 175
Divide both sides by 25
x = 7
QSR = 10x - 2
QSR = 10(7) - 2
QSR = 68º
Speed is measured in miles per hour (mph).
<span>The formula Distance equals rate times time (d=rt) can be rearranged and the rate can be solved, </span>
<span>d = r*t => r = d / t . d = 100 miles, time = 6 hours, Rate = 16.66 mph (16 and two thirds). </span>
<span>The same formula can be used for the second part, </span>
<span>21000 / 24 = rate, Rate = 875 kilometers per hour</span>
We must first open the parenthesis. We get 15*7+15y, or 105+15y. We can now add 12 to 105 which would be 117. Now we have -4-5y+117+15y. With this we can move the -4 to 117 which is 113 and the -5y to 15y which is 10y. So we got 113+10y as our answer.
Hope this helps. <3
Well since it’s a open circle it’s between B and C. But I’ll choose B. Hope this helps.