Hope this helps!
28 - 13 = 15
15 x 12 = 180 Fifth graders
Answer:
a) 1 / 10
b) $15/10 = $1.50
Step-by-step explanation:
Answer:
28 miles in 7 minutes, 240 miles in an hour
Step-by-step explanation:
We can first simplify the rate to miles per minute. Since the plane goes 12 miles in 3 minutes, we can divide it by 3 to find how much it travels in one minute. 12 divided by 3 is 4 and 3 divided by 3 is 1
The plane travels 4 miles a minute
To find how much it travels in 7 minutes, multiply by 7
4x7 is 28
28 miles in 7 minutes
To find an hour, multiply by 60
4x60= 240
240 miles in an hour
Answer:
=11/4 cm
Step-by-step explanation:
We are finding the perimeter
P = 2(l+w)
l = 3/4 cm
w = 5/8 cm
The common denominator is 8
l = 3/4 *2/2 = 6/8
P = 2(6/8+5/8)
=2(11/8)
=22/8
=11/4 cm (2 1/4 cm)
It says an integer or a fraction, not a mixed number
X2 = x2 + 2x + 9 Now subtract x2 from both sides and you have
x2- x2 = x2 - x2 + 2x + 9 or 0 = 2x + 9 now subtract 9 from both sides so you can solve for x.
0 -9 = 2x -9...and you have -9 = 2x
Now solve for x by dividing both sides by 2 and you arrive at x = -4.5
