Answer:
20 X 40 = 800 (split into 2 fourths) = 40
Step-by-step explanation
20 x 40 = 800;
For 2 necklaces she can split 800 into fourths.
800 - 40 = 80. (1 fourth)
80 - 40 = 40 (2 fourths)
40 - 40 = 0 (3 fourths)
She could split 800 into 2 fourths to get a number more than 0 and less then 42.
The best estimate of rounding 42 is 40. Because 40 is closer to 42.
Answer:
Step-by-step explanation:
Let the variable be taken as 'r'.
Then, by raising it to the 7th power, we'll get the result as 
Now, by doubling the result....
Answer:
Perimeter = 2l + 2w //l=length, w=width
l = 44 + w
Now substitute 44 + w in place of l in the above equation and you have
2(44 + w) + 2w = 288
=> 88 + 2w + 2w = 288
=> 88 + 4w = 288
=> 4w = 200
=> w = 50 and l = 44 + 50 = 94
2*94 + 2*50=288
Step-by-step explanation:
Answer:
7 : 17.29
Step-by-step explanation:
==>Given:
Two similar cylinders:
Surface area of Cylinder A = 49cm²
Surface area of Cylinder B = 121cm²
==>Required:
Scale factor between both cylinders
==>Solution:
We can easily get the scale factor between both by taking the following steps:
=>Set up a ratio of their surface area:
Smaller cone surface area : larger cone surface area
49:121
= 49/121
=>Simplify the ratio gotten:
Dividing the denominator and the numerator by 7, would give us,
7/17.29
= 7:17.29
Answer:
13
-2*3-15/(-5)4-(-7)
Step-by-step explanation:
