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serious [3.7K]
2 years ago
11

Ilean works as a welder and web designer. As a welder, she earns $18 per hour. Last week she worked 푥 hours as a welder and her

friend paid her $75 to design a web page. Write an expression to represent the total amount Ilean earned last week.
Mathematics
1 answer:
trapecia [35]2 years ago
8 0

The expression that represent the total amount Ilean earned last week is 27(18) + 75  

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more variables and numbers.

Let y represent the total amount Ilean earned last week for working x hours.

Since she worked for 27 hours and earned $75 to design a web page. Hence:

y = 27(18) + 75

The expression that represent the total amount Ilean earned last week is 27(18) + 75  

Find out more on equation at: brainly.com/question/2972832

#SPJ1

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John runs a computer software store. Yesterday he counted 121 people who walked by the store, 66 of whom came into the store. Of
Dominik [7]

Answer:

a) There is a 55% probability that a person who walks by the store will enter the store.

b) There is a 38% probability that a person who walks into the store will buy something.

c) There is a 21% probability that a person who walks by the store will come in and buy something.

d) There is a 62% probability that a person who comes into the store will buy nothing.

Step-by-step explanation:

This a probability problem.

The probability formula is given by:

P = \frac{D}{T}

In which P is the probability, D is the number of desired outcomes and T is the number of total outcomes.

The problem states that:

121 people walked by the store.

66 people came into the store.

25 bought something in the store.

(a) Estimate the probability that a person who walks by the store will enter the store.

121 people walked by the store, 66 of whom entered the store. So:

D = 66, T = 121

P = \frac{D}{T} = \frac{66}{121} = 0.55

There is a 55% probability that a person who walks by the store will enter the store.

(b) Estimate the probability that a person who walks into the store will buy something.

66 people walked into the store, 25 of whom bought something. So:

D = 25, T = 66

P = \frac{D}{T} = \frac{25}{66} = 0.38

There is a 38% probability that a person who walks into the store will buy something.

(c) Estimate the probability that a person who walks by the store will come in and buy something.

121 people walked by the store, 25 of whom entered the store. So:

D = 25, T = 121

P = \frac{D}{T} = \frac{25}{121} = 0.21

There is a 21% probability that a person who walks by the store will come in and buy something.

(d) Estimate the probability that a person who comes into the store will buy nothing.

Of the 66 people whom came into the store, 25 bought something. This means that 66-25 = 41 of them did not buy anything. So:

D = 41, T = 66

P = \frac{D}{T} = \frac{41}{66} = 0.62

There is a 62% probability that a person who comes into the store will buy nothing.

5 0
3 years ago
Help <br><br> Don’t use for points and also be clear or I will take the points back
katen-ka-za [31]

Answer:

x=47°

Step-by-step explanation:

..,........................

7 0
3 years ago
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The height of a fireworks rocket in meters can be approximated by h= -5t^2+30t, where h is the height in meters and t is the tim
Crazy boy [7]

It takes 45 seconds. the easiest way to do these is to use a graphic calculator and replace the variables with x and y, for example, this equation would become -5x^2+30x, and if you don't have access to a graphing calculator, you can always use desmos online.

3 0
3 years ago
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Maria is comparing the prices of two window cleaning companies. Company A charges $6 per window and an additional $12 as service
Pani-rosa [81]
Part A: 6w + 12 = 5w + 15

Part B: 6(8) + 12 = 5(8) + 15
48 + 12 = 40 + 15
60 = 55 = Company B equals $55 which is less than $60

Part C: $5 is saved because of the amount of money.
Hope this helps :)

8 0
3 years ago
Find the volume of an oblique cone.
AURORKA [14]

V = (1/3) π r² t

= (1/3) π (10 cm)². 16 cm

= (1/3) π (100 cm²). 16 cm

= (1/3) π (1600 cm³)

= (1600π)÷3 cm³ (B)

8 0
3 years ago
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