Answer:
28.28
Step-by-step explanation:
Using Pythagoras' identity on the right triangle
d² = 20² + 20² ← Pythagoras' identity
= 400 + 400 = 800 ( take the square root of both sides )
d =
≈ 28.28 ( to 2 dec. places )
One dinner = 22.65
4 dinners = 22.65 x 4 = $90.60
one lunch = 10.95
5 lunches = 10.95 x 5 = $<span>54.75
one breakfast = 6.53
</span>3 breakfasts = 6.53 x 3 = 19.59
Total = $90.60 + $54.75 + $19.59 = $164.94
Your answer is 60
a triangles angles add up to 180
<span>(3b - 5x)(a +3) is the answer
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