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:
A
x=0.625y
y=1.6x
B
y=3.2
Step-by-step explanation:
Answer:
feet tall.
Step-by-step explanation:
Jebb's Height Calculation:
The heights are given in <em>Mixed Fraction</em>. A mixed fraction is comprised of a whole number and a proper fraction, where as <em>proper fraction </em>is the one whose numerator is less than its denominator and <em>improper fraction </em>is the one whose numerator is greater than its denominator:
Shortest girl in the Sixth Grade =
feet
<em>Converting the height in improper fraction</em>:
feet
Jebb's Height =
feet x The shortest girl height
<em>Converting the height of Jebb in Improper Fraction</em>:
feet x
feet
<em>To find the Jebb's height we multiply 3 by 17 and 2 by 4 to get a improper fraction of</em>;
Jebb's Height =
feet
We can convert the above in mixed fraction as follows:
feet tall.
Answer:
Step-by-step explanation:
graph b and a is negative because it does not start at point 0 and has a straight line that passes through the origin