HELP!!!!Carissa takes a square piece of cardboard and cuts 5 in. by 5 in. squares out of each corner. She folds the sides up to make a box without a top. What equation can Carissa use to determine the volume of the box, where x is the side length of the original piece of cardboard?
Express the equation in standard form.
Answers
Answer:
V=l×l×h
Step-by-step explanation:
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Answers
Let us assume that the number of books Jan bought = x
the number of magazines Jan bought = y
Then
x + y = 6
x = 6 - y
and
3x + 2.5y = 16
Replacing the value of x from the first equation in the second we get
3x + 2.5y = 16
3(6 - y) + 2.5y = 16
18 - 3y + 2.5y = 16
- 0.5y = -2
y = 2/0.5
= 4
Replacing the value of y in first equation we get
x + y = 6
x + 4 = 6
x = 2
So Jan bought 2 books and 4 magazines.
Answer:
She bought 2 books and 4 magazines
Answers
The ratio in which the amount needs to be divided = 2:3:5
Let us assume the common ratio to be = x
Then
2x + 3x + 5x = 85
10x = 85
x = 85/10
= 8.5
Then
The ratio in which the number 85 will be divided = 2 * 8.5:3 * 8.5:5 * 8.5
= 17:25.5:42.5
So from the above deduction we can see that the number 85 can be divided in the ratio 17:25.5:42.5
Answers
38. 12+20+16=48
Answers
Answer:
x= 36 km
Step-by-step explanation:
Vince went on a 3 day hiking trip. Each day, he walked 3/4 the distance that he walked the day before. He walked 83.25 kilometers total in the trip. How far did Vince walk on the 1st day of the trip?
Assume vince walked x km on the first day .
The following equation can be formed
x + 3/4 x + (3/4)^2 x = 83.25
x + 0.75x + 0.5625x = 83.25
Add the like terms
2.3125x = 83.25
Divide both sides by 2.3125
x = 36 km.
Answer:
36
Step-by-step explanation:
A. 2/√5
B. √10
C. √10/5
D. 2√10/5 *** My answer
2. Simplify -11√112
A. -44√7
B. -176 √7
C. -27 √7
D. 4√7 *** My answer
3. Simplify 17√17 -9 √17
A. 8 *** My answer
B. 8√17
C. 26√17
D. 8√0
4. Simplify 6/ √3 + 2
A. 4/ √3
B. 12 - 6 √3 *** my answer
C. √3 - 2
D. 3
5. What is the domain of the function y = 3√6x + 42 ?
A. X≥0
B. X ≤7 *** my answer
C. X ≥ -6
D. X ≥ -7
6. What are the domain and range of the function y = 2 √3x + 4 - 5 ?
A. X ≥ -4/3 ; y ≥ -5 *** my answer
B. X ≥ 4/3 ; y ≥ -5
C. X ≤ -4/3 ; y ≤ -5
D. X ≥ -4/3 ; y ≥5
7. When will the dependent variable in the equation y = √x+4 - 3 equal or exceed 4 ?
A. X ≥ -0.17
B. X ≥ 45
C. X ≥ 48 *** my answer
D. X ≥ 53
8. Simplify the radical expression. Show all of the steps.
√363 - 3√27
Answers
2 a
3 b
4 none
5 d
6 a
7 b
Answers
I like to do these equations backwards and multiply the first number by the opposite of it. ( think 1- the percent as a decimal) however, you can do this by converting the percent into a decimal and then subtracting that from the original number.
Have a great day!