13. # books * 2
97 * 2
A
14. 4.5 km/21 min = 7.5 km = x min
cross multiply
4.5x = 7.5(21)
4.5x = 157.5
x = 35 min
B
15. 9.60/12 = x/4
cross multiply
12x = 4(9.60)
12x = 38.40
x = 3.20
C
16. 18% move decimal two places to the left and drop the % sign
0.18
A
17. d = rt
d = 2(55)
d = 110 miles
150 - 110 = 40 miles remaining
A
I could help. So mark days as the X value and hours as the Y value
so for the days(x) start with 1 and put in the hours(y) 24 the for the second column in the days(x) box put 2 and in the hours(y) put 48 then continue to at 12 to the hours(y) and 1 to the days(x)
Answer:
Step-by-step explanation:
√(4t+5) = 3
4t + 5 = 9
4t = 4
t = 1
Answer:
-2x+y=12
Step-by-step explanation:
linear equation
