fatherbamboo
03.09.2020 •
Mathematics
The ratio of “D”s to “A”s in the school was 6 to 19. If there were 872 As in the school this term, how many Ds were there?
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Ответ:
The amount of D's there were is 275.4
Step-by-step explanation:
D : A
6 : 19
D : 872
Cross multiply 872 and 6
6*872 = 5232
Then divide the total by 19
5232/19 = 275.4 (simplified)
Ответ:
17.2 cm
Step-by-step explanation:
Multiply the radius by 2 and you always have the diameter
divide the diameter by 2 for the radius
multiply the diameter by 3.14 or pi for the circumference