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gtnhenbr [62]
4 years ago
11

Because of hiring a plumber, y, to work x hours on a repair project can be modeled using a linear function. the plumber charges

a fixed cost of $80 plus an additional cost of $45 per hour. the plumber works a maximum of 8 hours per day
Mathematics
1 answer:
seraphim [82]4 years ago
4 0

Answer:

The plumbers cost would be equal to the equation 80+45x=y with y being the total amount of money he made and x being how many hours he worked.

Step-by-step explanation:

In this equation to find the amount the plumber was paid all you need to do is plug in the amount of hours he worked for x.

If the plumber worked his maximum of 8 hours then the equation would change from 80+45x=y to 80+(45×8)=440.

So, if the plumber worked for 8 hours he would make $440.

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An electrician needs to buy 144 light bulbs. the light bulbs come in packages of 8. He bought 4 packages from the store and 5 pa
Snowcat [4.5K]
Lets add 4+5=9×8=72-144=72÷8=9 the electrician needs to buy 9 more packs of light bulbs
7 0
4 years ago
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How many different 10-letter permutations can be formed from 8 identical H's and two identical T's?
melamori03 [73]

Answer:

<h3>45 different permutations</h3>

Step-by-step explanation:

Given 10 letters with 8 identical H's and two identical T's, the number of different permutations will be expressed as;

= \dfrac{10!}{8!2!}

= \dfrac{10*9*8!}{8!*2!}\\ \\= \dfrac{10*9}{2*1}\\ \\= \dfrac{90}{2}\\ \\= 45

<em>Hence the number of different 10-letter permutations that can be formed from 8 identical H's and two identical T's is 45</em>

4 0
3 years ago
Solve the equation for x. 4^5 square root (2x-4)^2=16
VMariaS [17]

The value of x in the equation is 4

<h3>What are algebraic expressions?</h3>

Algebraic expressions are seen as expressions that consist of factors, variables, terms, coefficients, and certain constants.

These expressions are also known to be composed of some arithmetic operations, which includes;

  • Subtraction
  • Addition
  • Division
  • Multiplication
  • Parentheses
  • Bracket, etc

Given the expression;

(2x-4)^2=16

√(2x-4)^2 = 16

Find the square root of the expression, we have;

√(2x -4)^2= √16

Find the values

2x - 4 = 4

collect like terms

2x = 4 + 4

Add like terms

2x = 8

Make 'x' the subject of formula

x = 8/2

x = 4

Hence, the value is 4

Learn more about algebraic expressions here:

brainly.com/question/4344214

#SPJ1

6 0
2 years ago
Could you provide some help?
zlopas [31]
10 sqaure units in this triangle
6 0
3 years ago
The number of subscribers y to a newspaper after t years is shown by the equation below: y = 75(0.95)t Which conclusion is corre
kodGreya [7K]

Answer:

  It decreased by 5% every year

Step-by-step explanation:

When t increases by 1, the number of subscribers is multiplied by another factor of 0.95, making the new value 5% less than the previous one.

The number of subscribers decreased by 5% every year.

5 0
3 years ago
Read 2 more answers
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