Answer:
- cookie: $1.25
- cupcake: $2.75
Step-by-step explanation:
Let x and y represent the cost of a cookie and a cupcake, respectively.
4x +3y = 13.25
5x +2y = 11.75 . . . . . . the system of equations
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By Cramer's rule:
x = (3(11.75) -2(13.25))/(3(5) -2(4)) = 8.75/7 = 1.25
y = (13.25(5) -11.75(4))/7 = 19.25/7 = 2.75
The cost of one cookie is $1.25; the cost of one cupcake is $2.75.
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Cramer's rule gives the solution to the system of equations ...
ax +by =c
dx +ey = f
as ...
∆ = bd -ea
x = (bf -ec)/∆
y = (cd -fa)/∆
You have to place the numbers on the correct location of the number line. Let me guide you ☺
0.5 goes halfway between the 0 and 1. You will place a dot which is called a point halfway between 0 and 1.
-2.1 going to the left you will place a tiny dot that represents -2.10.
1 2/3 also known as 1.66 will be placed beteeen the 1 and 2. I think you are getting the picture now. right!
Please vote my answer brainliest. thanks!
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Answer:
Step-by-step explanation:
A fixed pulley consists of a wheel fixed to a shaft and is used in conjunction with a belt to transfer energy to another fixed pulley. A movable pulley consists of a shell, a movable wheel and a rope. Movable pulleys are also know as block and tackle.
Answer:
I think its rational
Step-by-step explanation:
Answer: B
Step-by-step explanation: have a great day pls brainliest
