(6d^2 + 27d - 10d - 45)
= (6d^2 + 17d - 45)
Answer:
three-fifths over three-eights equals one and three-fifths miles per hour
Step-by-step explanation:
- The martinez family walked three over five of a mile; this means they walked 3/5 of a mile.
- They walked such distance in in three over eight of an hour, this means 3/8 of an hour.
To find the rate in miles per hour, we have to divide 3/5 divided 3/8.
![\frac{3}{5} /\frac{3}{8}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B5%7D%20%2F%5Cfrac%7B3%7D%7B8%7D)
TO make division of fraction, we must invert the second fraction and multiply them:
![\frac{3}{5} *\frac{8}{3} =\frac{8}{5}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B5%7D%20%2A%5Cfrac%7B8%7D%7B3%7D%20%3D%5Cfrac%7B8%7D%7B5%7D)
The ratio is 8/5 miles per hour. In the answer given it is expressed as a mixed numer 1 3/5 that is equal to 8/5.
To transform a fraction to a mixed number, you have to divide numerator by denominator. Explanation is in figure attached.
Answer:
The cost of one pass is 25$
Step-by-step explanation:
Call the cost of one of the passes, P. So we have
63 = 13 + 2P - subtract 13 from both sides
50 = 2P - divide both sides by 2
25 = P
So the cost of one pass = $25
Relative frequency = (number of times an item appears) /(TOTAL numbers)
Relative frequency (selecting Red ) = 13/30 =0.434
Answer:
<h2> 8.06ft</h2>
Step-by-step explanation:
step one:
This problem is on the mensuration of solids,
given that the area is 65ft^2
step two:
we know that the expression for the area of a solid is
areaa= length* length
area= l^2
step three:
substituting the value of the area into the expression we have
65=l^2
we need to square both sides to solve for l we have
√65=l
l= 8.05ft
step four:
From the analysis we found the length of one side to be 8.06ft