The solution is (1,3). This is where the two lines intersect.
the correct answer is -448
A hamburger costs $2.5 and a milkshake costs $1.75
Step-by-step explanation:
- Step 1: Form equations from the given details. Let cost of 1 hamburger be H and cost of 1 milkshake be M.
4H + 2M = 13.50 ------ (1)
& 3H + 1M = 9.25 ------ (2)
- Step 2: Multiply eq(2) with 2 to make coefficients of M equal.
6H + 2M = 18.50 ------- (3)
- Step 3: Subtract eq(3) from eq(1)
⇒ - 2H = - 5
⇒ H = $2.5
- Step 4: Substitute value of H in eq(2) to find M.
⇒ 3 × 2.5 + M = 9.25
⇒ 7.5 + M = 9.25
⇒ M = $1.75
Answer:
620
Step-by-step explanation:
selling 400 doughnuts means selling 800 £ worth of doughnuts. 800 x 0.4 ( to find 40 percent) = 320, + 300 because the the fixed cost = 620. :)
Answer:
32 256 cubic inches
18.7 cubic feet
Step-by-step explanation:
4 feet = 4 × 12 = 48 inches
8 feet = 8 × 12 = 96 inches
7 inches = 7 ÷ 12 = 0.583 feet
Volume = length × width × height
V = 48 × 96 × 7 = 32 256 cubic inches
V = 4 × 8 × 0.583 = 18.7 cubic feet
