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alexandr1967 [171]
3 years ago
12

Please help me with this problem

Mathematics
1 answer:
nadya68 [22]3 years ago
7 0
Which Problem Do You Need Help With?
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The volume of a cube is 441cm3.<br> Work out the length of its side rounded to 1 DP.
Klio2033 [76]

Answer:

volume of a cube = 441cm3.

l³=441cm³

l=7.6cm

5 0
3 years ago
There are 3 consecutive integers twice the first is 20 more than the second. Find the largest number
Burka [1]
Let's say "n" is a natural number. {1,2,3,4,..} To ensure we have an even number we will multiply "n" by 2. Two times any number will make an even number.

consecutive even numbers are like; 2, 4, 6, 8, 10 .. etc. Add +2 to the previous number to get the next consecutive.

1st even number = 2n
2nd even number = 2n + 2
3rd even number = 2n + 4

twice the first number (2n) is 20 more then the second (2n + 2).

2(2n) = 2n + 2 + 20

4n = 2n + 22

4n - 2n = 22

2n = 22

n = 11

Now use n = 11 to find the 3 consecutive even numbers.

1st even number = 2(11) = 22
2nd even number = 2(11) + 2 = 24
3rd even number = 2(11) + 4 = 26

22, 24, 26
3 0
3 years ago
24-x/x = 1/2 find x please i need help
Aliun [14]

Answer:

No Solution

Step-by-step explanation:

There are no values of  x  that make the equation true.

3 0
2 years ago
Erica’s parents gave her $500 for her high school graduation. She put the money into a savings account that earned 7.5% annual i
Marat540 [252]

Answer:

$28.84

Step-by-step explanation:

That's for the first one that I found, the two other problems I don't know yet.

6 0
3 years ago
Perimeter of a rectangle HELP!
alexdok [17]
All I can say is that your equation is wrong
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3 years ago
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