Answer:
To find the unit price, we divide the total cost by the number of items.
$3.90 ÷ 3 = $1.30
That means the unit price is $1.30 for each sponge.
Answer:
c/16
Step-by-step explanation:
Step 1: 3x + 4y = 15
Step 2: Get in Slope intercept form = y=mx+b
Step 3: Subtract 3x from both sides since your trying to get Y alone
Step 4: 4y = -3x + 15
Step 5: Divide 4 from both sides since 4 cannot go into -3 or 15 leave it as is
Step 6: Y =

+

Step 7: Point slope form= y-y=m(x-x)
Step 8: (8, -2) are your points 8x and -2y
Step 9: Substitute
Step 10: y - 2 =

(x - 8)
Step 11: Distribute
Step 12: y - 2 =

+ -6
Step 13: Add 2 to both sides
Answer : y =

+ 4
Answer:



Step-by-step explanation:
Given



Solving (a): n
To solve for n;
We make use of

Substitute values for XY and XZ



Divide through by -6

Solving (b) XY

Substitute 3 for n



Solving (c): XZ

