Answer:
130x+150y=1,920
Step-by-step explanation:
Why that is the equation is he learned 130 words per month in Portugal and 150 words per month in Brazil. Added together it is 1,920.
So the equation is 130x+150y=1,920.
Answer: y= -5. X= 1. M= -3
This is 2020 oct 28
Step-by-step explanation:did it on an assignment hope you guys got the right answer I got PGM 8grade
X+2y=10
6x+6y=6 -> x+y=1
(x+2y=10)-(x+y=1)=y=9
x+(2*9)=10
x+18=10
x=-8 and y=9 -> c
We know that
in a right triangle
cos θ=adjacent side angle <span>θ/hypotenuse
in this problem
</span>adjacent side angle θ=38 in
hypotenuse=40 in
cos θ=38/40
θ=arc cos (38/40)-------> 18.19°-------> 18°
the answer is
18 degrees
Answer:
k = 5,
y = 5x
Step-by-step explanation:
If y is proportional to x,
y ∝ x
Then the equation will be
y = kx
Her k = proportionality constant.
Now we choose a point from the given table.
Let the point is (2, 10).
By putting the values of x and y in the equation,
10 = 2×k
k = 
k = 5
This will be true for any point we choose from the table.
And the equation will be y = 5x
