Answer:
c.12
Step-by-step explanation:
If you would like to solve the equation 13 - 3 / 2 * x = 34, you can do this using the following steps:
13 - 3 / 2 * x = 34
13 - 34 = 3 / 2 * x
- 21 = 3 / 2 * x /* 2/3
x = - 21 * 2 / 3
x = - 14
The correct result would be - 14.
Short answer: 375 grams
Remark
You only need to set up a direct proportion
Givens
flour for 12 cakes = 150 grams
Number of cakes initially = 12
Amount of flouer for 30 cakes = x
Number of cakes = 30
Proportion
amount flour for 12 cakes / 12 cakes = x / 30
Sub and solve
150 grams / 12 cakes = x / 30 cakes Cross multiply
150 * 30 = 12 *x Multiply the left side.
4500 = 12 x Divide both sides by 12
4500/12 = x
375 grams for 30 cakes. <<<<< Answer
The answer to question 3 is D. 15(4a+3). And the answer to question 4 is A. 90. Have a great day
You would plug in 4 for x.
f(4)= (4) - 6 = -2
