#2
2x - 4y = -2
2x + 3y = -16
------------------subtract
-7y = 14
y = 14/-7
y = -2
2x - 4y = -2
2x - 4(-2) = -2
2x + 8 = -2
2x = -2 -8
2x = -10
x = -10/2
x = -5
answer x = -2 and y = -5
check:
2(-5)- 4(-2) = -2
-10 +8 = -2
-2 = -2.....true
2x + 3y = -16
2(-5)+3(-2) = -16
-10 + (-6) = -16
-16 = -16...true
To find how many hours Sonia work on her science project,we can multiply the working hours of Tony by the times Sonia did:
Therefore Sonia work on her science project for 5 5/6 hours.
Hope it helps!
The average speed is 4 miles per minute
WORK:
8mi=2minutes
÷2 ÷2
------------
4 1
4mi=1 minute
Answer:
significance level
Step-by-step explanation:
In other to determine whether her sample proportion is "different enough" than the claimed population proportion, We will set significance level because p-value should be compared to significance level that will allow Joanna to make a conclusion about whether her sample proportion is "different enough" than the claimed population proportion.
