Answer:
Fast car = 45.6
Slower car = 30.4
Step-by-step explanation:
Let the speed of the first car = x
Let the speed of the second car = y
Travelling towards each other.
x *1 + y*1 = 76 miles
x*5 - y*5 = 76 miles. This is kind of tricky. You have to understand that the first car that is 76 miles from the second car and makes up that 76 in 5 hours. The distance they both travel is subtracted out.
Divide by 5
x - y = 76/5
x - y = 15.2 The speeds differ by 15.2
x + y = 76
x - y = 15.2
2x = 91.2
x = 45.6
y = 76 - 45.6 = 30.4
When the two vehicles speeds are multiplied by 5, the difference is 76 km
Answer:
<u>4.23 * 10³ = 4.23 * 1000 = 4,230</u>
Step-by-step explanation:
We should know that;
10³ = 10 * 10 * 10 = 1000
∴ 4.23 * 10³ = 4.23 * 1000 = 
= 4,230
Answer:
68.544
Step-by-step explanation:
64x(1+0.088)=68.544
Answer:
16x - 2 + y
Step-by-step explanation:
(48x - 6 + 3y)/3 = 48x/3 - 6/3 + 3y/3 = 16x - 2 + y
