jenna6891
03.11.2020 •
Mathematics
Two complementary angles have the ratio of 4:5. What is the measure of the smaller angle?
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Ответ:
9x = 90
x = 10
smaller angle = 4x = 4(10) = 40
and if you wanted to find out the larger angle = 5x 5(10) = 50
and to check that they are complementary, 40 + 50 = 90
Ответ:
D (approximately)
Step-by-step explanation:
In total, Lara walked 6+2=8 miles in 1.5+1=2.5 hours, and thus her average speed was 8/2.5=3.2 miles per hour.
Similarly, Tim walked 2+4+6=12 miles in 0.5+1.5+1.5=3.5 hours, and thus his average speed was 12/3.5=3.42 miles per hour.