Answer:
60 grams
Step-by-step explanation:
For these type of questions, we can equate the ratio with the actual amounts. We will let the quantity to find be an unknown variable, such as x. Then we equate the ratios, cross multiply, and use algebra to solve.
Let grams of zinc be "x", so we can write the ratios and actual amounts as:

Then we cross multiply and solve for x, what we want to find out. Shown below:

There are 60 grams of zinc.
Answer:
8 ramen bowls
4 pho bowls
Step-by-step explanation:
12-4=8
There are 4 cups in a quart and 60 seconds in a minute. So 4/120 cups per second or 1/30 cups per second.
Answer:
d a c
Step-by-step explanation:
We are given the general formula of the curve of y = ax2 + bx + c. The tangen line at the origin is y = 4x. This eliminates the second term in which the derivative should be reflected as a constant. Since when the derivative of the first term is 4x, then a should be 2. From the points, c should be equal to 24.