45c = 5 · 9c
10d = 5 · 2d
45c + 10d = 5 · 9c + 5 · 2d = 5(9c + 2d)
Answer:
0.33,29%,1/4
Step-by-step explanation:
Answer:
19,180, and 181 are side lengths of a right triangle.
Step-by-step explanation:
All of them do not fit the formula a squared + b squared= c squared except for 19+180+181 because:
19 squared= 361
180 squared= 32400
32400+361= 32761
the sq. root of 32761=181
C = πd [C=circumference, d=<span>diameter, </span> π≈3.14]
20 = 3.14 · d
d = 20 / 3.14 ≈ 6.37 cm
Answer:
24%
Step-by-step explanation:
x (original price) = 50$
y (sale price) = 38$
p (percentage) = ?
p = (x - y) / x
p = (50-38) / 50
p = 12/50
p = 0.24
p = 24%