Step-by-step explanation:
Basically, let's represent the amount of money earned in
July with x
and
August with x+90
x+(x+90)=350
2x+90=350
2x=350-90
2x=260
x=260÷2
x=130
So, Wanda earned $130 babysitting in July and in July, 130+90=$220.
<em>Hope this helps!</em>
Answer:
15 and 3 is the answer
Step-by-step explanation:
15+3=18
15-3=12
The answer is option (B) i.e. The elevator traveled upward at a rate of
ft/sec.
So, we say at time, t = 0, the elevator just starts moving upwards and at time t = 0, the elevator is 90 ft below the ground.
Now, after 15 seconds, the elevator is 20 ft below the ground.
It means, the elevator has covered a distance of 90-20=70 ft in time 15 seconds.
So, speed of elevator moving upwards is:
=
ft/sec
27+x simplify the expression