Answer:
t=(v-u)/a
Step-by-step explanation:
The equation we start with is v=u+at and we need to isolate t.
First subtract u from both sides
v-u=at
Now just divide both sides by a
(v-u)/a=t or t=(v-u)/a
To solve this, you just divide 20 divided by 7.
20/7 = <span>2.85714285714
If you are trying to round to the nearest tenth, the next decimal place (hundredths) is a 5, so you must round 2.8 up one more digit.
Your final answer is that</span> 20/7 = 2.9 when rounded to the nearest tenth.
209 is the answer (if you know how to divide do it)
Answer:
Sleeping looks to be at least 26 years and TV would be 9 years
Step-by-step explanation:
Hi there,
4x - 5y = 39
y = 6x - 13
4x - 5(6x - 13) = 39
4x - 30x + 65 = 39
-26x = 39-65
-26x = -26
x= -26/-26
x= 1
So we deduce y now :
y = 6 *1 - 13
y= 6 - 13 = -7
Hope this helps !
Photon