Answer:
Exact form: -7/10
Decimal form: -0.7
Step-by-step explanation:
Isolate the variable by dividing each side by by factors that don't contain the variable.
Answer:
3/3=1
Step-by-step explanation:
Replace each occurrence of x by 7. So we have:-
7^2 + 3 / 7 - 9
= 52 / -2
= -26 answer
Answer:
2.28%
Step-by-step explanation:
Given that:
µ = 40 minutes ; σ = 3.5.
x = > 47 minutes
Obtain the standardized score, Z
Zscore = (x - μ) / σ
P(x > 47) = (47 - 40) / 3.5
P(x > 47) = 7 / 3.5
P(x > 47) = 2
P(z > 2) = 0.02275
Hence, Probability that next pizza delivery takes over 47 minutes is 0.02275 = 2.275% = 2.28%
Answer:
Cost of new carpet per square foot should be less than or equal to $3.54.
Step-by-step explanation:
Given:
Money have to buy carpet =
dimension of game room is 20 feet by 12 feet
So we can say length l = 20 feet
and width w = 12 feet
let be the cost per square foot for new carpet.
Assuming game room to be rectangular in shape we will find the area of it.
Area of room =
Total area cost per square feet ≤ Total money we have
Hence,
Hence Cost of new carpet per square foot should be less than or equal to $3.54.