Don’t open that ^ it’s a virus
9514 1404 393
Answer:
20 ft wide by 28 ft long
Step-by-step explanation:
The sum of length and width is half the perimeter, so is 96 ft/2 = 48 ft.
The difference of length and width is given as 8 ft.
The width is half the difference of these numbers: (48 ft -8 ft)/2 = 20 ft.
The length is 8 ft greater: 20 ft + 8 ft = 28 ft.
The garden is 20 ft wide by 28 ft long.
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If you need to see the supporting equations for this solution, consider ...
w + (w+d) = s . . . . . where w is the width, d is the difference, and s is the sum
2w = s - d . . . . . . . subtract d
w = (s -d)/2 . . . . . . the solution we used above
Step-by-step explanation:
The answer to the first one is: 4cd+4b.
The answer to the second one is: 2ab+4a+7b+14
(I'm assuming that you want to simplify)
9514 1404 393
Answer:
- 42 students; (28 students); 70 students
- (60%); 40%; (100%)
Step-by-step explanation:
The percentages total 100%, so the missing percentage is
100% - 60% = 40%
The numbers on the number lines are proportional, so now you can write ...
?/100% = 28/40% . . . . . . ? total students
Multiplying by 100% gives ...
? = 28/0.4 = 70 . . . . . total students
Then the 60% portion of students can be found two ways:
60% × 70 = 42 students . . . . 60% of students
70 -28 = 42 students
