The right answer for the question that is being asked and shown above is that:
Two numbers have a sum of 71 and a difference of 37
x + y = 71
x - y = 37
So in order to get the two numbers, here it is:
x + y = 71
x - y = 37
------------
2x = 108
x = 54
y = 71 - 54
y = 17
<span>So the two numbers are 54 and 17</span>
Answer:
45 apps
Step-by-step explanation:
1 minute has 60 seconds
If 12 seconds equals to 9 apps
60 seconds equals to x apps
Cross multiplying
Therefore, Dean downloads 45 apps in 1 minute
<h2><em>
Hello ! :)</em></h2>
<h3>I found this on google..</h3>
<h2><u>"The nerve cells have branches connecting them to other cells in a complicated network. Communication between these brain cells is what allows us to think and solve problems. When you learn new things, these tiny connections in the brain actually multiply and get stronger."</u></h2>
Let the base of the ladder be x ft and the extension be y ft.
"when fully extended, a ladder is 28 feet in length."
means: x+y=28
"<span>the extension is 4 feet shorter than the base</span>"
means: y=x-4, that is x-y = 4, (taking y to the side of x, and -4 to the other side of x and y)
thus, we have the system of equations:
1) x+y= 28
2) x-y=4
adding the 2 equations, we have:
(x+y)+(x-y)=28+4
2x=32
x=32/2=16
x+y=28, so 16+y=28, thus y=12
Answer: Base: 16, Extension 12
<u>Answer:</u>
$109.38
<u>Step-by-step explanation:</u>
$12.50 x 4 hours = $50
$12.50 x 4 hours and 45 minutes = $59.38
$50 + $59.38 =
$109.38
