Answer:
45, 45
Step-by-step explanation:
the corner shows that is a right angle with 90 degrees. the 4 lines going through each side tell me all the sides are the same.
all 3 angles added together equals 180
the other 2 corners have the same value
90 + x + y = 180
x and y are the same since all sides are the same and the right angle is present.
both are 45
Answer:
Step-by-step explanation:
a)L=2w+4
b)P=2L+2w
sub L=2w+4,
P=2(2w+4)+2w
P=4w+8+2w
P=6w+8
c) 20=6w+8
12=6w
2=w
L=2(2)+4
=8
Hence,
L=8 and w=2
G, the y-intercept will not be 3
Total cost for the blake family :
3d + 2s = 12 — (1)
total cost for the reese family :
2d + 4s = 16 — (2)
multiply equation 1 by 2 so that we can cancel out s later :
(1) x 2 : 2(3d+2s)=2(12)
6d+4s = 24 — (3)
using simultaneous equations,
(3) - (2)
(6d+4s) - (2d+4s) = 24-16
6d-2d+4s-4s = 8
4d = 8
d = 2
the cost of one drink is $2.
3.5 hours = 168 mi
We need to figure out the miles per hour pace first, before we move on any further.
To do this, divide 3.5 on both sides so we get per ONE hour:
3.5 hours/3.5 = 168 mi/3.5
1 hour = 48 mi
That means for the first 3.5 hours, Samantha drove at a pace of 48 miles per hour. If she were to drive 5 miles an hour faster the next 2.25 hours, that means she would be driving at 53 miles per hour.
Now we need to find the total number of miles Samantha drove.
For the first 3.5 hours, she drove 168 miles.
For the next 2.25 hours, she drove at a pace of 53 miles per hour.
If 53 mi = 1 hour, we need to multiply 2.25 on both sides to find out how many miles is 2.25 hours.
53 mi x 2.25 = 1 hour x 2.25
53(2.25) mi = 2.25 hours
Simplify
119.25 mi = 2.25 hours
That means Samantha drove 119.25 miles for those 2.25 hours.
To find the total number of miles, we need to add them up:
168 + 119.25 = 287.25
So Samantha drove a total of 287.25 miles during the 5.75 hours :)
