Answer:
there are 21 students in her class.
Step-by-step explanation:
Since the 12 girls corresponds to the 4 in the ratio, I multiplied the 3 by three to get the amount of boys. then add the boys to the girls to get 21 students.
Answer:
She can make 1.6 batches
Step-by-step explanation:
24/15 = 1.6
8^13
The exponent is increasing by 3
4 (x - b) = x Use the DIstributive Property [(4(x) - 4(b)]
4 x - 4b = x Add 4b to both sides
4x = 4b + x Subtract x from both sides
3x = 4b Divide both sides by 3
x =