Find the sum plz 1 3/5 + 8 1/2
2 answers:
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Answer:
The answer is correct, here's why:
Step-by-step explanation:
Dr. Silva's tank holds 15 gallons of gas.
She added 11.55 gallons to her tank to fill it up.
This means she must have had 5 gallons to start with because 5
- 11.55 = 5
Answer:
55°, 125°
Step-by-step explanation:
angle EFG = 180°
angle EFH + angle GFH = angle EFG (Colinearity)
substitute the values,
6x - 5 + 12x + 5 = 180°
18x = 180°
(÷18)
x = 10
substitute values of x in both the requires angles,
angle EFH
= (6 × 10) -5
= 55°
angle GFH
= (12 × 10) + 5
=125°
to check,
55° + 125° = 180°
