Answer:
6=x
5.375=y
Step-by-step explanation:
You add 57° and 37° together and get 94°
You subtract the 94° from 180° (the total of the angles for all triangles) and you get 86°.
So the third angle is 86°, but it is bisected, so you divide it in half.
43=7x+1
You subtract one from both sides, giving you 42=7x
you divide 42 by 7 and get 6, so x is 6.
You divide 8 by 43 to get y.
Step-by-step explanation:
Ariana and Mackenzie exercised for 20 minutes more than Brinley and Seth.
x = Seth exercise minutes
Ariana minutes = 3x
Brinley minutes = 3x - 17
Mackenzie minutes = 1/2 × (3x - 17)
so, in total we have
3x + ½(3x - 17) = x + (3x - 17) + 20
statement 1 is true.
6x + (3x - 17) = 2x + 2(3x - 17) + 40
6x + 3x - 17 = 2x + 6x - 34 + 40
9x - 17 = 8x + 6
x = 23
statement 2 is false.
Brinley and Seth exercised together for
x + 3x - 17 = 23 + 3×23 - 17 = 4×23 - 17 = 75 minutes
statement 3 is false.
Mackenzie exercised for
½(3x - 17) = ½(3×23 - 17) = ½(69 - 17) = ½×52 = 26 minutes
statement 4 is true.
Answer:
y = -3x + 12/2
Step-by-step explanation:
Step 1: Add -x to both sides
x + 2/3 + -x = 4 + -x
2/3y = -x + 4
Step 2: Divide both sides by 2/3
2/3y ÷ 2/3 = -x + 4 ÷ 2/3
y = -3x + 12/2
Answer:0.111111111111111111
Step-by-step explanatio