Let m and j be the current ages of Matthew and Jenny, respectively.
Now, Matthew is 3 times as old as Jenny, so the variables are in the following relation:
In 7 years, both of them will be 7 years older, i.e. their ages will be m+7 and j+7, and Matthew will be twice as old:
Now, remembering that m=3j, we can rewrite the second equation as
So, Jenny is 7 and Matthew is 21 (he's 3 times older).
In fact, in 7 years, they will be 14 and 28, and Matthew will be twice as old.
Answer:
look at the graph i made with desmos, i just plugged the equation in.
Step-by-step explanation:
Answer:
See Step by step explanation
Step-by-step explanation:
Answer:
<u>4 1/12. (Four, one by twelve).</u>
Step-by-step explanation:
7/12 × 7 =?
7/12×7 = <u>49/12.</u>
The answer is now in improper fraction. When we convert it to mixed fraction we get the answer as <u>4 1/12. (Four, one by twelve).</u>
Answer:
32
Step-by-step explanation:
In a full factorial experiment, there are usually 32 or 2⁵ treatments. This implies that there are usually 2 levels and 5 factors. From the description below, there is a list of the 32 treatments.
Factor A Factor B Factor C Factor B Factor E
lo hi hi hi hi
hi low hi hi hi
hi hi low hi hi
hi hi hi low hi
hi hi hi hi low
lo lo hi hi hi
lo hi lo hi hi
lo hi hi lo hi
