5 more because Mary had double and it was 5
Answer:
3z=6 and z=2
Step-by-step explanation:
6 1s on 1 side 3 zs on other
6/3 is 2 lol
Answer:
B
Step-by-step explanation:
Reflection over the line y=0, if you look at your given pre image and image. You can see both images are between the y axis line. Also if you count the units from pre image and image you can see the Reflection over the y:0 line.
Answer:
x= -1, y= 1
Step-by-step explanation:
2x + 6y = 4.........(1)
8x - 5y = 45........(2)
multiply equation (1) by 4
8x + 24y = 16......(3)
subtract equation (3) by (2)
29y = 29
y = 1
then substitute y=1 in equation (1)
2x + 6(1) = 4
solving for x
x = -2/2 = -1
Answer:
y = 100 - 2.5 x is the equation that represents her total profit from
the project
Step-by-step explanation:
The given is:
1. An electrician earns 100 dollars for a project installing light fixtures
2. She must pay for the light fixtures herself and they cost 2 dollars
and 50 cents each
3. x represent the number of light fixtures and y represent her
total profit
Her profit is the amount of money she has left over after paying for
the light fixtures
∵ The cost of each light fixtures is 2 dollars and 50 cents
- Let us change the cents to dollar
∵ $1 = 100 cents
∴ 50 cents = dollar
∴ 2 dollars and 50 cents = $2.5
∵ Her profit = The money she earns - The money she pays
∴ The cost of each light fixtures = $2.5
∵ She installs x light fixtures
∴ She pays 2.5 x dollar
∵ She earns $ 100 for installing x light fixtures
∵ Her profit is $y
∴ y = 100 - 2.5 x
y = 100 - 2.5 x is the equation that represents her total profit from
the project
Step-by-step explanation: