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kkurt [141]
3 years ago
5

Which expression has a value of 15 when n equals 7?​

Mathematics
1 answer:
evablogger [386]3 years ago
3 0

Answer:

It's the last one, D

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What is -5/12 - 4/14 + 6/34
andrew11 [14]

Answer:

4 1/2

Step-by-step explanation:

Look at this expression as given in the original problem; the numbers, properly typewritten, are    -5  1/2,  - 4  1/4,  + 6  3/4.

We want to combine these three numbers into one.

To do this, we need the LCD; it is 4.

Thus, -5  1/2 is rewritten as  -5  2/4.

Then we have

-5  2/4 - 4  1/4 + 6  3/4  = -5 -4 + 6 + 2/4 + 1/4 + 3/4.

This simplifies to:                 +3 + 6/4, or 3 + 1  + 2/4, or

                                                                      4  1/2

5 0
3 years ago
Simplify the following algebraic expression.<br> 169<br> A. 13<br> B. 2/13<br> C. 13/2<br> D.26
Aliun [14]

Answer:

its 13

Step-by-step explanation:

Its 13 A

8 0
4 years ago
Krispy Kritters Cereal used to come in a
shtirl [24]

Answer:

1335cm³

Step-by-step explanation:

The question above says that,Krispy kritters cereal used to come in a box with a volume of 2,850 cm3. However, the krispy kritters co. Designed a new larger box 22.5 cm wide, 6.2 cm deep, and 30 cm high and we are now asked to find "How many more cubic centimeters will the new box hold than the old box?

Now we are all aware that the volume of a cube or cuboid(since its a box ) is length multipled by width multiplied by the height.

And we were given the new dimensions which are;

12.5cm wide

6.2cm deep and

30cm high

Apply this given figures in the formula above and we have:

V = 12.5 × 6.2 × 30

= 4185cm³( this is the volume of the box)

Therefore,the difference in volume between the new box and the old box is

4185 - 2850 = 1335cm³

5 0
3 years ago
Trevor covered a cylindrical can with paper for a project. The
Delicious77 [7]

Answer:

722 cm ^2

Step-by-step explanation:

6 0
3 years ago
Use the numbers 12,12,12,12,23,23,31,31,49 to add up to 100 exactly(not necessary to use all the numbers)..
krek1111 [17]

Answer:

49,12, 39

Step-by-step explanation:

49+12+39=100

3 0
3 years ago
Read 2 more answers
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