V=1/3Bh B=area of base h=height
Answer:
A
Step-by-step explanation:
You can substitute 40 into c, work out the equation and you'll get $75 as the profit. Each candy bar is $2.5 so c would be the number of candy bars she sold.
Applying the rules of exponents, the letter answers that form the code are: MATH IS NOT JUST ANOTHER FOUR LETTER WORD.
<h3>What are the Rules of Exponents?</h3>
Some of the rules of exponents to be applied are as follows:

<h3>What are Equivalent Expressions?</h3>
If two expressions have the same value, both are said to be equivalent expressions.
1. 

Answer: H
2. 3³/6² = 27/36 = 3/4
Answer: R
3. ![\frac{3^2}{3^5} = 3^{2 - 5} = 3^{-3]} = \frac{1}{3^3} = \frac{1}{27}](https://tex.z-dn.net/?f=%5Cfrac%7B3%5E2%7D%7B3%5E5%7D%20%3D%203%5E%7B2%20-%205%7D%20%3D%203%5E%7B-3%5D%7D%20%3D%20%5Cfrac%7B1%7D%7B3%5E3%7D%20%3D%20%5Cfrac%7B1%7D%7B27%7D)
Answer: M
4. 7²/7² = 49/49 = 7° = 1
Answer: J
5. 8^-2 = 1/8² = 1/64
Answer: A
6. (4²)(4³) = 4^(2 + 3) = 
Answer: L
7. (3²)³ = 3²*³ = 
8. 4° × 4^-1 = 1 × 1/4 = 1/4
Answer: E
9.
= 1
Answer: U
10. 
Answer: I
11.
= 1
Answer: D
12. 
Answer: F
13.
= 8² = 64
Answer: S
14.
1/2³ × 1/3² = 1/8 × 1/9 = 1/72
Answer: O
15. 
Answer: N
16.
= 2
Answer: T
Thus, applying the rules of exponents, the letter answers that form the code are: MATH IS NOT JUST ANOTHER FOUR LETTER WORD.
Learn more about the rules of exponents on:
brainly.com/question/12140519
The missing equations are;
a + 2b + 3c = 12
3a + 2b + 5c = 22
2a + 4b + 4c = 18
Answer:
a = 2
b = 0.5
c = 3
Step-by-step explanation:
We are told that;
a represent the price per pound of apples
b represent the price per pound of bananas
c represent the price per pound of oranges
The equations system is;
a + 2b + 3c = 12 - - - (eq 1)
3a + 2b + 5c = 22 - - - (eq 2)
2a + 4b + 4c = 18 - - - (eq 3)
Divide through equation 3 by 2 to get
a + 2b + 2c = 9 - - - (eq 4)
Subtract eq 4 from eq 1 to get;
3c - 2c = 12 - 9
c = 3
Put 3 for c in eq(2) and eq 4;
3a + 2b + 5c = 22
3a + 2b + 5(3) = 22
3a + 2b + 15 = 22
3a + 2b = 7 - - - (5)
a + 2b + 2(3) = 9
a + 2b + 6 = 9
a + 2b = 3 - - - (eq 6)
Subtract eq 6 from eq 5 to get;
2a = 7 - 3
2a = 4
a = 2
Put 2 for a in eq 6;
2 + 2b = 3
2b = 3 - 2
2b = 1
b = 1/2
b = 0.5
Answer:
Hope you liked my answer and it helped you
Step-by-step explanation:
Let x = the number of ounces of Solution A
Let y = the number of ounces of Solution B
x + y = 180 y = 180 - x
.60x + .85y = .75(180)
.60x + .85y = 135 Multiply both sides of the equation by 100 to remove the decimal points.
60x + 85y = 13500
60x + 85(180 - x) = 13500
60x + 15300 - 85x = 13500
-25x = -1800
x = 72ounces
y = 180 - 72
y = 108 ounces