Its 43. All triangles add to 180 so 47 + 90 = 137. then subtract 180 - 137 and get 43
Answer:
Plug in the value to the equation to see which set works.
Step-by-step explanation:
So
ollie=x
x-8=y
y=3x-16
subsitute y=3x-16 for y in the first equation so
x-8=3x-16
subtract x from both sides
-8=2x-16
add 16 to both sides
8=2x
divide both sides by 2
4=x
ollie is 4
Answer:
D 28 inches
Step-by-step explanation:
mean : average
So to find the mean add all of the numbers in April and divide by the total number of different heights there were:
(12+15+23+11+12+19+20+12+11+14+12+13) ÷ 12 = 14.5
Do the same for the heights in June:
(42+45+44+39+45+45+40+43+41+40+45+41) ÷ 12 = 42.5
Then subtract the means to find the difference:
14.5 - 42.5 = -28
Since its a real world problem the answer can’t be negative
Therefore the answer is D 28 inches
So you would plug in the x values into the equation to find the solutions
1/3(-15)= -5
1/3(0)=0
1/3(15)=5
:)