Answer:
Each cupcake cost $2.50 and each brownie cost $2.00
Step-by-step explanation:
Let x represent the price of each cupcake and let y represent the price of each brownie.
Lily and Maddie bought one cupcake and one brownie for $4.50. Hence the equation is:
x + y = 4.50 (1)
Also Jessica purchased 3 cupcakes and one brownie for $9.50. Hence the equation is given by:
3x + y = 9.50 (2)
To find the price of each cupcake and brownie, we solve equation 1 and 2 simultaneously. To find x, subtract equation 1 from equation 2:
2x = 5
x = $2.50
Put x = $2.50 in equation (1):
2.50 + y = 4.50
y = $2.00
Therefore each cupcake cost $2.50 and each brownie cost $2.00
Answer: rose = 7, shrub = 7
Step-by-step explanation:
First equation 10r + 4s = 98
r = (98-4s) / 10
Second equation 9r + 9s = 126
Substituting
9 (98-4s) / 10 + 9s = 126
9(49-2s) / 5 + 9s = 126
(441-18s) / 5 + 9s = 126
441 - 18s + 45s = 630
441+ 27s = 630
27s = 630 - 441
s = 189 / 27 = 7
Cost of shrub = 7
Cost of rose = (98 - 4s) / 10
= 98-28 = 70 / 10 = 7
Answer:
$4.72
Step-by-step explanation:
7.87÷5=1.574
1.574×3=4.722
so, $4.72 is your answer.
22500x.003=67.5x3=202.5 22500-202.5=22,297.5
That's the math How only .5 of something dies I don't know
Mark Brainliest please
Perimeter of a rectangle,
Pr = 2L+ 2W
L = (W + 14)
Pr = 2(W+14) + 2W
Pr= 2W + 28 +2W
Pr =96 = 4W + 28
Pr = (96 — 28) = 4W
Pr = 68 = 4W
W = 68/4 = 17m, L= 17+14 = 31m
Check:
17m+17m+31m+31m= 96m
