Answer:
X = 0, Y = -2
Step-by-step explanation:
5(2x + 6y = -12)
2(5x - 5y = 10)
10x + 30y = -60
10x - 10y = 20
40y = -80
y = -2
x = (10 + (-2)5) / 5
x = 0
Answer:
ST = 12 units
Step-by-step explanation:
As RA is parallel to ET, the angle in R is equal to the angle in T, and the angle in A is equal to the angle in E, so the triangle RAS is similar to the triangle SET.
If RT is 21 units, we have that RS + ST = 21 -> RS = 21 - ST
Using a rule of three with the sides of the triangle (as they are proportional), we have:
RS / ST = AR / ET
(21 - ST) / ST = 6 / 8
4 * (21 - ST) = 3*ST
84 - 4*ST = 3*ST
7*ST = 84
ST = 12 units
Answer:
John has 42 apples left
Step-by-step explanation:
77-20-15=42
Hope this helps
Answer: -6a-48
Step-by-step explanation:
First -6 goes into a and that turns into -6a and then -6 goes into 8 and that turns into -48 so ur answer would be: -6a-48
ur welcome
Answer:
289
Step-by-step explanation:
The sides are in the ratio of 52 to 68, or 52/68 = 13/17.
The ratio of area is the square of the ratio of sides.
Areas are in the ratio of 13^2 to 17^2 or 169/289