Step-by-step explanation:
Find the radius: 19 ÷ 2 = 9.5
4/3 x 22/7 x 9.5 x 9.5 x 9.5 = 3592
3592/3 =
1197.3 (Rounded to 1 decimal place)
Answer: 1197.3cm3
(I have never done area or perimeter of sphere before, but I did for other shapes. This is just my attempt using the methods I did for other shapes by the way)
Answer:
The numbers are 39 and 14.
Step-by-step explanation:
Equation 1, sum of the numbers:
x + y = 53
Equation 2, difference of the numbers:
x - y = 25
System of equations:
x + y = 53
x - y = 25
----------------
2x = 78
x = 39
Solve for y:
39 + y = 53
y = 14
The numbers are 39 and 14.
Answer:
You can
Step-by-step explanation:
To see if multiple ratios are proportional, you could write them as fractions, reduce them, and compare them.
Answer:
What’s the question?
Step-by-step explanation:
Step-by-step explanation:
2x+3y=23 2x+3.7=23 2×1 + 3×7 = 23
3y= 23 2×+21= 23 2 + 21 = 23
23÷3 = 7 2x= 23-21
y=7 2x= 2
x= 1
5x+3y=17 5×4+3y=17
5x=17+3 20+3y=17
5×=20 20=17+3y
14÷5 = 4 20=20+y
x=4 y=20-20
y=0
