Answer:
3(27) = 3(25 + 2) = TURE
Step-by-step explanation:
Left side: Use long multiplication:
| | 3
× | 2 | 7
Multiply 7 by the digit in the top row:
| | 3
× | 2 | 7
| 2 | 1
Multiply 2 by the digit in the top row:
| | 3
× | 2 | 7
| 2 | 1
| 6 | 0
Add:
Answer: 81
Right Hand: Simplify the following:
3 (25 + 2)
Hint: | Evaluate 25 + 2.
25 + 2 = 27:
3×27
Hint: | Multiply 3 and 27 together.
3×27 = 81:
Answer: 81
Suppose a square is 100%, 50%: the square is divided into two equal parts, and one of them is shaded, therefore it is 50%. 25%: the square is divided into 4 equal parts, and one of them is shaded, therefore it is 25%. 150%: there are two squares, each divided into 2 equal parts, and 3 of them is shadowed, therefore it is 150%
16. 72236.03 17. <span>
2.87 </span>
18. 2.3619. 9.2920. 1.65The exponential growth formula is as follows
:
a is initial value
(<span>$27,225 17. gallon of gas, $1.08 18. dozen eggs, $0.89 19. movie admission, $3.50 20. mcdonalds hamburger, $0.62)
r is rate of increase (0.05)
x is time (2008-1988 = 20 years)
to solve plug in values for each one.
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Answer:
It will take Jack 74 minutes(1 hour and 14 minutes) to complete the task
Step-by-step explanation:
From the question, we know that he has 1000 envelopes to stuff.
Now, he has already stuffed 112 out of the 1000. Number of envelopes left to be stuffed will be 1000 -112 = 888 envelops
We were told that it takes him 1 minute to stuff 12 envelopes.
Let the time it will take him to stuff 888 envelopes be x minutes;
Let’s have a relationship here;
12 envelopes = 1 minute
888 envelopes = x minutes
12 * x = 888 * 1
12x = 888
x = 888/12
x = 74 minutes
Answer:
23 in^2
Step-by-step explanation:
We need to find the area of the baking sheet and the area of the 12 cookies. Then we subtract the area of the cookies from the area of the baking sheet.
Baking sheet:
length = 4 cookies = 4 * 3 in. = 12 in.
width = 3 cookies = 3 * 3 in. = 9 in.
area = length * width = 12 in. * 9 in. = 108 in.^2
Cookies:
diameter = 3 in.
radius = diameter/2 = 3 in./2 = 1.5 in.
area of 1 cookie = (pi)r^2
area of 12 cookies = 12(pi)r^2 = 12(3.14159)(1.5 cm)^2 = 84.823 in.^2
area of unused space =
= area of baking sheet area of 12 cookies
= 108 in.^2 - 84.823 in.^2
= 23.177 in.^2
Answer: 23 in^2
