7. 18.3 divided by 4 is 4.575. 4.575 is closest to 4.5 which would be our answer
8. 14.6 divided by 3 is 4.86. If we round it, then it would be 5 which would be the answer
10. The answer to the problem would be 11.58
Answer: 80 miles
Step-by-step explanation:
10mph + 30mph = 40 mph
Distance = Speed × time
D = 40m/h × 2 h
D = 80 m
The pattern is that every 2 numbers are a pair, the first being any selected number, and the second number next to is the number times 3.
3 x 3 = 9
4 x 3 =12
7 x 3 = 21
Therefor we type 16 x 3 = 48
48 is your next number.
From X + Y = 4
<span>Y = 4 - X </span>
<span>Substituite this for Y in 2X - Y = 2 to get </span>
<span>2X -(4 - X ) = 2 </span>
<span>2X -4 +X = 2 </span>
<span>3X = 6 </span>
<span>X = 2 </span>
<span>Now return to X + Y = 4 </span>
<span>Knowing X = 2, </span>
<span>2 + Y = 4 </span>
<span>Y = 4 - 2 </span>
<span>Y = 2 </span>
<span>The solution is (X,Y) = (2,2) </span>
<span>This is quadrant I </span>
<span>Answer is A</span>