Answer:
(-2,8)
Step-by-step explanation:
8x + 9y=56
-9x + y = 26
---------------------------------------------------------------------------------
-9x + y = 26
+9x = +9x
y = 9x + 26
---------------------------------------------------------------------------------
8x + 9(9x+26) = 56 <-- substitute for y from above
8x + 81x + 234 = 56
89x + 234 = 56
- 234 = - 234
89x = - 178
x = -2 <--- we got the x value!!
--------------------------------------------------------------------------------
-9x + y = 26
-9 (-2) + y = 26 <-- substitute for x from above
18 + y = 26
- 18 = - 18
y = 8 <-- we got the y value!!
Spaghetti sauce - $2.49
Spaghetti noodles - $1.58
Gallon of milk - $3.17
$2.49 + $1.58 = $4.07
$4.07 + $3.17 = $7.24
Answer - $7.24
Hope this Helps!!
Answer:
I believe The first one is 1.5 and the second one is 12
Step-by-step explanation:
3 divided by two is 1.5
If we multiply 1 by 1.5 we get 1.5
If we multiply 8 by 1.5 we get 12
3/20 is the answer! Hope I helped!!
Answer:
C. 350
Step-by-step explanation:
A sample of 50 different coloured balls are removed from total golf balls made.
Out of these 50 coloured balls, 8 balls are pink
Now, to calculate the total number of golf balls made,
we can use the concept of proportion
= 

total golf balls made = 
total golf balls made = 350