The number of muffins Andrea baked: h
The number of muffins Violet baked: h-8
In order to find the average, we add the two expressions and divide them by 2.
(h)+(h-8)=2h-8
(2h-8)/2=h-4
The average number of muffins baked is h-4 muffins.
Hope this helped!
Answer:
21 quarters and 19 dimes
Step-by-step explanation:
Create a system of equations where q is the number of quarters and d is the number of dimes.
0.25q + 0.1d = 7.15
q + d = 40
Solve by elimination by multiplying the bottom equation by -0.25
0.25q + 0.1d = 7.15
-0.25q - 0.25d = -10
Add them together and solve for d:
-0.15d = -2.85
d = 19
Then, plug in 19 as d into the second equation to solve for q:
q + d = 40
q + 19 = 40
q = 21
So, there are 21 quarters and 19 dimes
Answer:
V = 150.72 yd³
Step-by-step explanation:
To find the volume, we will need to use the formula 
To find the base, we will need to use the volume of a circle, which is 
.
If the diameter is 8, the radius is half which is equivalent to 4. Put this into the equation:
A = π4²
A = 16π ≈ 50.24.
Now, use this in the Volume of a Pyramid formula:
V = 1/3 (50.24 ·9)
V = 150.72 yd³
Answer:
1/21.
Step-by-step explanation:
There are 9 digits and the total number of permutations of 3 from 9 is 9P3
= 9!/6! = 504.
There are 4 even digits so the number of permutations of 3 from these 4 is 4! (4-3)! = 4*3*2 = 24.
So the required probability = 24/504
= 1/21.
Answer:
3.64 × 10(raised to the power 7)
2.6 × 10⁴
