Here we are asked to find the smallest number which must be multiplied to 240 to make it a perfect square .
So , lets do prime factorisation of 240 .
Here , 240 = 2 × 120 .
= 2 × 2 × 60.
= 2 × 2 × 2 × 30.
= 2 × 2 × 2 × 2 × 3 × 5 .
Hence we got 240 = 2⁴ × 3¹ × 5¹ .
Now here we can see that , in order to make a perfect square it should be multiplied by 3 × 5 = 15 in order to make power of prime factors even .
Answer:
B) $3.56
Step-by-step explanation:
The price of one egg: $1.69
The price of a slice of bacon: $1.49
The price of a glass of orange juice: $1.09
Sara buys 2 eggs, 1 slice of bacon, and 1 glass of orange juice.
(2 eggs x $1.69) + (1 bacon x $1.49) + (1 glass of oj x $1.09) =
($3.38) + ($1.49) + ($1.09) = $5.96
Next, add the total gotten with the sales tax.
Sales tax: $0.48
$5.96 + 0.48 = $6.44
Then, subtract the total from the $10 that she used to pay:
$10 - 6.44 = $3.56
B) $3.56 is your answer.
~
6/1 divided by 3/8
6/1 x 8/3
if you cross multiply, 2 can go into 6 and 8
6 divided 2 is 3
8 divided 2 is 4
so
6/1 would be 3/1
8/3 would be 4/3
3/1 x 4/3 = 12/3
12/3 simplified is 4
Answer:
$22.50
Step-by-step explanation:
First, you subtract 30 from 300 which is 270, then you divide 270 by 12 because there is 12 months in a year, and then you get 22.50 per month.