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3241004551 [841]
2 years ago
11

A rectangular room is 21 feet wide. It is

Mathematics
1 answer:
ELEN [110]2 years ago
5 0

Answer:

I think the answer is 7

Step-by-step explanation:

7 multipled my 3 equals 21.

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Ryan bought 3 books and a magazine . He paid $30 and relieved $5 change if the magazine cost twice as much as each book, find th
Montano1993 [528]

The books are $5, and the magazines are $10. I’m not sure which way you want it explained but since magazines are twice the price of books, you can solve the equation 3b + 2b = 25. This gives you b=5 which you just multiply by 2 giving you the price of a magazine.

8 0
3 years ago
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What is the area of the base of a triangular prism if the volume is 210 ft3 and the height is 14 ft?
Oksi-84 [34.3K]
We have the area of the base of a triangular prism= a*b
the volume of triangular prism =a*b*c( where c is the height) so that 210=a*b*14 ==> 210= base area*14==> base area= 210/14
3 0
3 years ago
jack bought 3 slices of cheese pizza and 4 slices of nushroom pizza for a total cost of $12.50. Grace bought 3 slices of cheese
Llana [10]
The cost of one slice of mushroom pizza is $2.00 dollars. This is solved by subtracting the equations:  
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4 0
3 years ago
Can you help me in this question?
mrs_skeptik [129]

Answer:

the answer is third option B

4 0
2 years ago
What is m∠LQK?<br><br> I have to attack the file
Olegator [25]
3n+(4n-15)=90

3n+4n-15=90

7n=105

n=105/7

n=15

---------------------

Angle LQK is 4n-15

If n=15

Angle LQK = 4(15) - 15

= 60 - 15

= 45
6 0
3 years ago
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