an electrician has $120 to spend on interior light fixtures. The wholesale price for a 13-watt low-energy lamp is $4. The price for a high-energy lamp is $5. 1)Write the algebraic expression for how much the electrician spends for a units of the low -energy of the low-energy lamp and b units of the high-energy lamp. 2)Write an equation that relates your answer to Exercise 1 to the amount of money the electrician has to spend.

Answers

Answer 1

Answer: x = low-energy lamp
y = high-energy lamp

1) 4x + 5y

2) 120= 4x + 5y

Answer 2

Answer: Ok, are you ready? Here we go:
First we know that he has 120 dollars, so the first part of the equation is 120 = ?
it equals something, we dont know, so lets find out.
low energy lamp: 13 dollars per unit
High Energy Lamp: 14 dollars per unit
So, 13a (a stands for "a units") and 14b ( b stands for "b units) are the respective equation for the given values, that's question 1
Question 2, we connect the 120 values and the 2 equation we made, so 13a +14b = 120 dollars

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What transformation was performed on triangle ABC to create triangle A apostrophe B apostrophe C apostrophe ? A. translation 8 units right B. 180° rotation about the origin C. reflection across the x-axis D. reflection across the y-axis

Answers

D. reflection across the y-axis

Which is a good comparison of the estimated sum and the actual sum of 7 9/12 + 2 11/12?

Answers

7 9/12 = 7.75
2 11/12 = 2.917

So we can round both of these up.

7.75 rounds to 8
2.917 rounds to 3

8 + 3 = 11

So the estimated sum is 11.

7 9/12 + 2 11/12 = 10 2/3

So the actual sum is 10 2/3.

The estimated sum is a pretty good estimate to the original number.

7 9/12 + 2 11/12
((12*7)+9)/12+((12*2)+11)/12

93/12+35/12

128/12 divide by 2

(128/2)/(12/2)

64/6 divide by 2

(64/2)/(6/2)

32/3

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A bottle soap cost $3.45 for 64 ounces. What is cost per ounce

Answers

A bottle of soap cost $3.45 for 64 ounces. So, the cost per ounce is $0.056

What is the unitary method?

The unitary method is used for solving a problem by finding the value of a single unit and then finding the other value by multiplying the single unit.

It is given

A bottle of soap cost 64 ounces = $3.45

A bottle of soap costs per ounce = $3.45 / 64

= $0.056

Thus, A bottle of soap cost $3.45 for 64 ounces. So, the cost per ounce is $0.056.

Learn more about the unitary method;

brainly.com/question/22056199

around five cents per ounce. if it costs $3.45 for 64 ounces, then you need to figure out how to find one ounce. basically, you divide $3.45 by 64 so you get the price per one ounce. does this make sense? hit thanks if it does, if not, please reply and I can certainly clarify and help more. thank you.

Mrs.Rook's class was folding paper for a project. Which shape can be folded on the line to show symmetry?

Answers

Is there a picture to show the shape that she is folding?

a square, triangle, rectangle, rhombus either one

two students in the class who do not wear glasses now wear glasses what is the new ratio of the number of students who wear glasses to the number of students who do not wear glasses