Answer:
see below
Step-by-step explanation:
We can determine how much 12 ounces cost by using ratios
5 ounces 12 ounces
-------------- = -------------------
2.35 x
Using cross products
5x = 12*2.35
5x = 28.2
Divide each side by 5
5x/5 = 28.2/5
x =5.64
If she has 10 dollars
5 ounces y ounces
-------------- = -------------------
2.35 10
5*10 = 2.35y
50 = 2.35y
Divide each side by 2.35
50/2.35 = 2.35y/2.35
21.27659574 =y
She can buy 21.3 ounces
Answer:
B
Step-by-step explanation:
6 times 50 = 300
6 times 2 = 12
300 + 12 = 312
6 times 52 = 312
Answer:
The table and equation have the same slope
Step-by-step explanation:
we know that
The formula to calculate the slope between two points is equal to
Step 1
Find the slope of the table
we have
Substitute the values
Step 2
Find the slope of the equation
we have
------> the equation represent a linear direct variation
The slope is equal to 
therefore
The table and equation have the same slope
7x^2 minus 10x^2 is 3x^2
-7x +9x is 2x
Lastly, 1 + -5 is -4
So your answer should be 3x^2 +2x-4. I hope this helps. Also I hope the picture is clear enough to see!
Answer:
x=200
Step-by-step explanation:
x−y=80
3/5 = y/x
Multiply the second equation by x
3/5 x = y/x *x
3/5 x = y
Substitute this into the first equation for y
x-y =80
x - 3/5x = 80
2/5 x = 80
Multiply each side by 5/2 to isolate x
5/2 *2/5x = 80 *5/2
x = 200