70p+71
Yo c pienso que esta es la respuesta, si no pues perdón
Answer:
9 years old.
Step-by-step explanation:
Since the ages of all of these students are being represented in relation to the middle student's age then we can create formulas for each student and then apply them to the formula for the sum of their ages and solve for the middle child's age (M) like so... (oldest child's age is represented by variable O and youngest child's age is represented by variable Y)
O = M + 6
Y = M - 3
30 = (M+6) + M + (M-3) ... combine like terms
30 = 3M + 3 ... subtract 3 from both sides
27 = 3M ... divide both sides by 3
9 = M
Now we know that the middle child is 9 years old.
-4 is the slope in the equation
Answer:
Step-by-step explanation:
One
Sin(x) = 15/24 = 0.625
x = sin-1(0.625)
x = 38.68
Two
Cos(x) = 8/11
Cos(x) = .727
x = cos-1(.727)
x = 43.34
Three
Tan(x) = 20/37
Tan(x) = 0.5405
x = tan-1(0.5405)
x = 28.39
Four
Cos(x) = 18/23
Cos(x) = .7826
x = cos-1(0.7826)
x = 38.50
If y = 2, to find the value of y + 6, we need to substitute the value of y (2) into the expression y + 6. Substituting 2 for y, we get the equation 2 + 6. Since 2 + 6 = 8, that means that substituting y = 2 into the expression y + 6, we get 8.
