Answer:
You have a total of $11.50
Step-by-step explanation:
We first subtract $19.75 by $8.25 and the result will be $11.50
Step-by-step explanation:
4x-9y=-9 1
2x +3y=3 2
1 - 2(2)
4x -9y=-9
(2)* -4x -6y=6
________
0-15y=-3
15y=3
y=3/15
y=1/5
So 3 have no pets, so 25 - 3 = 22 students have a pet.
There are 15 cats and 16 dogs so 15 + 16 = 31.
And then 31 - 22 = 9. The 9 means that 9 students have both pets.
So the probability is 9/25.
5. It is 110 degrees
6. It is 137 degrees
Answer:
(x-8)(x+7) in which x = 8, -7 (if needed)
Step-by-step explanation:
Figure out first what two numbers can go to 56. The possible combinations are 1 and 56, 2 and 28, 4 and 14, and 7 and 8. The middle number has to equal the sum of -1. Therefore, 7 and 8 will go to that sum with -8 as one and +7 as another. Your factor should be (x - 8) (x + 7) and when you are finding for the x-values, it should be 8 and -7 when necessary.