All you have to do is insert the x and y value's, then solve.
x = -3
y = -7
(3(-3) - 2(-7)) (-3(-3) + 4(-7))
(-9 + 14) (9 + -28) (Two negatives make a positive.)
(5)(-19)
= -95
Hope this helps you! Happy thanksgiving, here's a turkey!
The 15-year old age group has the lower ratio (15years = 7:10. 16yr = 10:19
Answer:
3
Step-by-step explanation:
7.50x+15<40
7.50x<25
x<3.33
The max he could've bought is 3 pairs each (can't buy a third of a pair)
The probability is 0.25.
There are a total of 36 outcomes in the sample space for rolling 2 dice.
Out of these, there are 6 ways to get doubles (1 and 1, 2 and 2, 3 and 3, 4 and 4, 5 and 5, 6 and 6).
There are also 3 ways to get a total of 4: 1 and 3, 2 and 2, 3 and 1.
Together this gives us 9/36 = 0.25.