Answer:
The slopes are m=3 and m=-2
There is only one solution
Step-by-step explanation:
Answers:
a:
Cheetah = 70mph
70 miles x 1 hour x 1760 yards (yds) = 32.4 yds/sec
Fox = 42mph
42 miles x 1 hour x 1760 yards = 20.5 yds/sec
Sorry, I can only answer the first part
$505 . 11 times 23 =253 . 14 times 18=252. When you add them you get $505
Answer:
x = 3 and y = 7
Step-by-step explanation:
Given that,
8x+3y=45 .......(1)
2x+3y=27 ........(2)
We need to solve equations (1) and (2)
Multiply equation (2) by 4.
8x+12y=108 .....(3)
Subtract equation (1) from (3).
8x+12y-(8x+3y)=108-45
12y-3y = 63
9y = 63
y = 7
Put the value of y in equation (1).
2x+3(7)=27
2x+21 = 27
2x = 27-21
2x = 6
x = 3
So, the values of x and y are 3 and 7 respectively.
Company A:
$200 + $2.99(30ft * 50ft) = $4,685
Company B:
30ft x 50 ft = 166.6667 sq yd.
$500 + $19.99(166.6667sq yd) = $3831.667
Company B is the better deal
