Answer:
8 vans
7 buses
Step-by-step explanation:
Let there be "b" buses
and "v" vans
Since 7 people is the capacity of vans, the total capacity is
7v
Also, since 25 people is the capacity of 1 bus, the total capacity is
25b
In total 231 people, so we can write our first equation as:
7v + 25b = 231
Now, we know there are 15 vehicles (bus + vans) in total, so we can write our 2nd equation as:
v + b = 15
Now, we solve for v and b. Let's solve the 2nd equation for v and substitute that into 1st and solve for b first:
v + b = 15
v = 15 - b
Now,
Hence, there are 7 buses
Since 15 vehicles in total, the number of vans is:
15 - 7 = 8 vans
So,
8 vans
7 buses
Gravity is inversely proportional to the square of the distance.
In English:
Your weight at the Earth's surface and your weight 850 miles above the Earth's surface decreases by a factor of
(4,750 / 3,900) ^ 2 =
<span>
<span>
<span>
1.483399080
</span>
</span>
</span>
So your weight would decrease by (your weight /
<span>
<span>
<span>
1.483399080
</span>
</span>
</span>
)
If you weigh 180 pounds, at 850 miles above the Earth your weight is
180 /
<span>
<span>
<span>
1.483399080
</span>
</span>
</span>
which equals
<span>
<span>
<span>
121.3429362515
</span>
</span>
</span>
pounds.
Answer:
50m is the length of the pool
Step-by-step explanation:
area= length * width
length= area/ width
1275/ 25.5 = 50
Answer:
when x is 5, y is -1
when x is 3, y is -4
Step-by-step explanation:
plug and chug
