Answer:
26.75 or 26.75156923
Step-by-step explanation:
Circumference formula:
C =Лd
Diameter formula:
d=c/Л
Substitute C for 84 and Л for 3.14:
d=84/3.14
Solve for Diameter:
d=26.75
Answer:
x=15
Step-by-step explanation:
x=√(12)²+(9)²
x=√144+81=√225
x=15units
Answer:
3 books
Step-by-step explanation:
She can carry 3 books in her backpack, this is because 1lb+3lb= 4
and if one book = 2lb each. Then 10-4 =6
so she has 6lb space remaning.
so 6lb divided by 2 = 3
Answer:
x=2
y=5
Step-by-step explanation:
y= x+3...(1)
y= -x+7...(2)
(1) + (2):
y+y= (x+3) + (-x+7)
2y= (x-x) + (3+7)
2y= 10
y= 5
By substituting y=5 into (1),
we have
5= x+3
x+3=5
x= 5-3
x= 2
Answer:
60°
Step-by-step explanation:
Complementary angles both add up to 90°. Therefore if one angle is twice the other, then if we divide 90 by 3 then we get 30. Two parts of 30 is 60 plus the other 30 and we get 90. The individual angle is 60°and the other is 30°