<h2>
Value of x is 2 </h2>
Step-by-step explanation:
Surface area is given by 2x²+48x+88
We need to find x when surface area is 192.
A = 2x²+48x+88
2x²+48x+88 = 192
2x²+48x- 104 = 0
x²+ 24x - 52 = 0
( x - 2 ) ( x + 26 ) = 0
x = 2 or x = -26 not possible
Value of x is 2
Answer:
$62.40
Step-by-step explanation:
7 hours of work: $52.50
1 hour of work:
$52.50 / 7 = $7.5
$7.5 per hour
If Ryan's rate increased by 4%, what would he earn per hour?
$7.5 * 1.04 = $7.8
New hourly wage: $7.8 per hour
For 8 hours of work:
$7.8 * 8 = $62.4 = $62.40
Answer: $62.40
Answer:
It is always important to go through the given problem first to get a concept of the requiremement. Then all the information's available from the question has to be noted down in such a manner that there would be no need to look at the question while solving.
Total number of students wearing jeans = 10
Total number of students wearing shorts = 9
Total number of students wearing capris = 2
Then the total number of students surveyed by Mrs Lane = (10 + 9 + 2)
= 21
Now percentage of students wearing shorts = (9/21) * 100
= (3/7) * 100
= 300/7
= 42.85 percent
So a total percentage of 42.85% of the students were wearing shorts.
Step-by-step explanation:
Answer: Answer below.
Step-by-step explanation: If x is pi, and y is 1/pi, then multiplying x by y is 1; yes. So, for y, 1 is being divided by pi. The opposite of division is multiplication. If you multiply 1/pi by pi, the pi in the denominator cancels. Just how if it is 5x = 10, dividing by 5 cancels it on the left side, and gets you x = 2.
This is general for everything. If you multiply 2 by 1/2, you get 1. This is because dividing is also like multiplying by its reciprocal. 1/2's reciprocal is 2/1, and multiplying leaves you with 1. Go and use a calculator, it's correct. Actually, any problem a/b × b/a = 1.
Answer: $3.25
Step-by-step explanation:
First you need to calculate the cost of the 8 pounds of nuts.
Cashews = 4 x $4 = $16
Peanuts = 4 x $2.50 = $10
The total cost of 8 pounds of nuts equals $16 + $10 = $26
In order to calculate the cost of 1 pound of the mixture you need to divide the total cost by the total weight.
$26 / 8 lbs = $3.25 / lb
The cost of one pound of the mixture is $3.25.
