faith365
30.01.2020 •
Mathematics
If you took 7 hours to mow 4 lawns, then at that rate, how many lawns could be lawns could be mowed in 35 hours? at what rate were lawns being mowed?
explain all steps!
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Ответ:
2.) Cross multiply the proportion: 7/4=35/x
35*4=140
3.) Divide 140 by 7
140/7=20
4.) 35 hours would accumulate to 20 lawns.The rate would be 35:20 and unit rate 6:4
Ответ:
x = 60 cm
Step-by-step explanation:
using Pythagoras theorem which states that:-
Hypotenuse (h)² = perpendicular (p)² + base (b)²
h = 100 cmb = 80 cmp = x100² = 80² + x²
100² - 80² = x²
10000 - 6400 = x²
3600 = x²
x = 60 cm