Answer:
Part 1)
Part 2) There are about
Step-by-step explanation:
Part 1) we know that
1 month=4 weeks
Let
x------> the number of hours of practice for three months
so
Convert months to weeks
3 months=3(4)=12 weeks
using proportion
that means------> In three months (12 weeks) the pianist practice 180 hours
Part 2)
Let
x------> the number of bass
y------> the number of catfish
we know that
Using proportion
There are about
Answer:
number 1 is b
Step-by-step explanation:
7 and 8. Because 7^2 is 49, so sqrt(49) is less than sqrt(56). The same goes with 8.
Step-by-step explanation:
TO show that this system has no solution, use the y value in the second equation and put it in for y in the first. Then solve.
x + 2y = -4
x + 2(-1/2x - 4) = -4
x - x - 8 = -4
-8 = -4
Because this is an incorrect statement, we can tell there is no solution.