A feet is 12 inches.

The bookshelf is 4 feet, 3 inches.
Answer:
Below in bold.
Step-by-step explanation:
Use the elimination method:
a. x + y = 23
x - y = 7
b. Adding the 2 equations eliminates y, so we have
2x = 30
x = 15.
Substitute x = 15 in equation a:
15 + y = 23
y = 23 - 15
y = 8.
Answer x = 15, y = 6.
Answer:
The number of hamburgers sold with cheese was 165 and the number of hamburgers sold without cheese was 330
Step-by-step explanation:
<u><em>The correct question is</em></u>
Birds burgers barn sold <em>495 hamburgers</em> today. The number sold with cheese wise half the number sold without cheese. How many of each kind were sold?
Let
x -----> the number of hamburgers sold with cheese
y -----> the number of hamburgers sold without cheese
we know that
-----> equation A
----> equation B
substitute the equation B in equation A and solve for y




Find the value of x

therefore
The number of hamburgers sold with cheese was 165 and the number of hamburgers sold without cheese was 330
Answer: 25<27
Step-by-step explanation:
-125/-5=25
-135/-5=27
25<27
Answer:
3
Step-by-step explanation:
<em>This is cube root (hence the </em>
).
To find the cube root of a number, we are looking for a number that, when multiplied by itself 3 times, equals the number inside the sign.
So:

We know that
, so this doesn't work.
We also know that
, so this works.
Therefore the cube root of 27 is 3.
Hope this helped!