Answer:
(6,8)
Step-by-step explanation:
2x + y = 20
6x - 5y = -4
Multiply the first equation by -3
-3(2x + y) = -3*20
-6x -3y = -60
Add this to the second equation
-6x-3y = -60
6x - 5y = -4
--------------------
-8y = -64
Divide each side by -8
-8y/-8 = -64/-8
y = 8
Now find x
2x+y = 20
2x +8 = 20
2x+8-8 = 20-8
2x = 12
Divide by 2
2x/2 = 12/2
x = 6
(6,8)
A) Sumaya adds the number of page and number of the pages she already read too gets 330 and -20 is the number page she wants to read.
b) 150 = 20d the answer is about 7 to 8 days
explain :
Zumaya adds 240 page and 90 page she read together. the reason it's wrong because the book only had 240 page, you can't add the page you had read together you need to subtract the 240 to 90 to get 150 to know how many pages she has to read.
The answer is D. because area is length x width 5*6=30 sq ft
Answer:
Letting L = distance per lap
4L + 8 = 6L + 4
2L = 4
L = 2 miles
She runs 16 miles each day
2 miles per Lap = 8 Laps on Saturday
Step-by-step explanation: