Answer:
He could use y+3x=-4
Step-by-step explanation:
When we subtract 3x on both sides, we get y=-4-3x, which means we just solved a variable and can substitute into the other equation 2x-3y=-21
Answer:
The correct answer Is that saw 75 movies last year.
Step-by-step explanation:
To solve this problem, we can write an equation. Let N equal the number of movies that he saw last year and we have:
N x (0.8) = 60
If we divide both sides by 0.8, we will get 75 for N.
Hope this helps you!!
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Answer:
n(A∩B) = 5
Step-by-step explanation:
given,
n(A) = 9
n(B) = 11
n(A U B) = 15
we need to find n(A∩B) = ?
using formula,
n(A U B) = n(A) + n(B) - n(A∩B)
n(A∩B) = n(A) + n(B) - n(A U B)
n(A∩B) = 9 + 11 - 15
n(A∩B) = 5
Answer:
0.00743494423 or 0.007
Step-by-step explanation:
Bro it’s C i just took this test lol