Four batches should be the correct answer
Answer: 15+X=27
Step-by-step explanation: 15+X=27 X Represents How Much More Is Added
Answer: 24 band posters should be sold
Step-by-step explanation:
First take the expression down to its simplest form;
= 5:4
Assume she sells 30 movie posters, her movies posters drop to;
= 100 - 30
= 70 movie posters
We need a number of band posters remaining that will give a ratio of 5:4 with movie posters.
In fraction form, the number of movie posters is;
= 5/9 because 9 would be the total number of both movie posters and band posters.
Create an expression to find the total number of posters if 70 are movie posters;
5/9x = 70
x = 70 ÷ 5/9
x = 126 posters
Number of band posters that should be left are;
= 126 - 70
= 56
Number of band posters that should be sold;
= 80 - 56
= 24 posters
<em>The new ratio would be 70:56.</em>
9514 1404 393
Answer:
√24 ≈ 4.90
Step-by-step explanation:
The square root can be estimated using a linear interpolation between the perfect squares on either side of the number of interest.
4² = 16
5² = 25
So, √24 can be estimated to be ...
(24 -16)/(25 -16) +4 = 8/9 +4 = 44/9 ≈ 4.8888...
This estimate can be refined by doing one iteration of the Babylonian method. That averages the current guess with the value obtained by dividing 24 by that guess.
√24 ≈ (44/9 +24(9/44))/2 = 4 89/99 ≈ 4.898989...
√24 ≈ 4.90
_____
A calculator gives the root as approximately 4.89897948557. Rounded to hundredths, that is 4.90.
