Answer:
h = 20 cm
Step-by-step explanation:
The volume (V) of a square based prism is
V = area of base × h ( h is the height )
area of square base = 9 × 9 = 81 cm²
Hence
81h = 1620 ← equation to be solved
Divide both sides by 81
h = 20 cm
Answer: 6 years old.
Step-by-step explanation:
For this exercise let "x" represents your present age.
According to the information provided in the exercise, you know that In three years, Chad will be three times your present age.
Then, your age in three years can be represented with the following expression:
Knowing at that time Chad's age will be three times yours and you will be half as old as old as Chad, you can write the following equation to represent this situation:
Therefore, the final step is to solve for "x" in order to find its value.
You get that this is:
Answer: x = # of student tickets
y = # of adult tickets
x + y = 1294 >> y = 1294 - x
5x + 8y = 8816
5x + 8y = 8816
5x + 8(1294 - x) = 8816
5x + 10,352 - 8x = 8816
-3x + 10,352 = 8816
-3x = -1536
x = 512 student tickets
512 student tickets were purchased.
(B)
Answer:
She should use 1/2 cup of chocolate chips.
Step-by-step explanation:
If she uses 2 cups for 8 people, that means
2 x 4 =8
So, all you have to do is,
? x 4 = 2
0.5 x 4 = 2
0.5 = 1/2
She should use 1/2 cup of chocolate chips