The table below shows two equations:
1 answer:
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Answer:
y=0.2x+29
Step-by-step explanation:
Given that:
y is the total monthly of the A Fee and Fee plan.
x is the number of monthly minutes used.
- If a customer uses 290 minutes, the monthly cost will be $87, we have the pair (290, 87)
- If the customer uses 980 minutes, the monthly cost will be $225, this is the coordinate pair (980, 225).
We want to obtain an equation in the form: y=mx+b
First, let us determine the slope, m
Given points (290, 87) and (980, 225):
<u>Slope</u>
Next, we determine the y-intercept, b.
Substituting the pair (290, 87) and m=0.2 in y=mx+b, we obtain
87=0.2(290)+b
b=87-0.2(290)=29
Therefore, our equation in the form y=mx+b is:
y=0.2x+29
Answer:
7 groups, 3 boys and 8 girls
Step-by-step explanation:
Let total number of groups be
and total hikers in one group be
if number of girls and boys in every group is same, then
....(1)
from (1) will either be 11 or 7
for the values won't be real.
For
so there will be 7 groups with 11 hikers in each groups and every group will have boys and
girls