Answer:
A
Step-by-step explanation:
(2^-4 x z^-3)^5
2^-20 * z^-15
1/2^20 * z^15
Answer:
1. x= 12.20
2. x= 8.94
3. x= 31.80
Step-by-step explanation:
1.
H =x , P = 7 and B = 10
using pythagoras theorem
H = 12.20
2.
H =21 , P = x and B = 19
using pythagoras theorem
P = 8.94
3.
H =x , P = 15.09 and B = 28
using pythagoras theorem
P = 31.80
Answer:
x = 8
Step-by-step explanation
Complimentary angles have a sum of 90*. Thus when adding the two equations together, we must get 90*.
7x + 17 + 3x - 7 = 90 Combine like terms
10x + 10 = 90 Subtract 10 on both sides
10x = 80 Divide both sides by 10
x = 8
Step-by-step explanation:
the volume of the bucket is
15,000 = 1.5 × 10⁴ ml
the trough holds
2.7 × 10⁵ ml
by calculating how often the volume of the bucket fits into the volume of the trough, we will know how many buckets of water are needed :
2.7 × 10⁵ / (1.5 × 10⁴) = 2.7/1.5 × 10⁵/10⁴ = 2.7/1.5 × 10¹ =
= 27/1.5 = 18
the rancher needs 18 buckets of water to fill the trough.
First we set up a proportion:
Now we solve the proportion:
• 27*4 = 108
• 3*x = 4x
• 3x = 108
We solve for X by dividing 3 on both sides:
• 3x/3 = x
<span>• 108/3= 36
</span>
Our answer:
x = 36
There were 36 boys in the club.
