Mathematics High School

Lillian and Jacob work at a dry cleaners ironing shirts. Lillian can iron 25 shirts per hour, and Jacob can iron 20 shirts per hour. Lillian and Jacob worked a combined 13 hours and ironed 295 shirts. Determine the number of hours Lillian worked and the number of hours Jacob worked.

Answers

Answer 1

Answer:

x=7 y=6

Step-by-step explanation:

x =  7      hous worked by Lillian

y  = 6      hours worked by Jacob

Step-by-step explanation:

Let call  " x  "  and  "  y  "  numbers of hours Lillian and Jacob worked respectively, then according to problem statement we have:

They both combined a total of 13 hours, therefore

x  +  y  =  13    ⇒   y  = 13  -  x

And the number of ironed shirts was  295  then we have

25*x  +  20*y  =  295

We need to solve that system of equations for   x     and    y   then

25*x   +  20 * ( 13 - x ) = 295

25*x   +  260  -  20*x   =  295

5*x  =  295  -  260

5*x  =  35

x  = 35/5

x  =  7

And  y  =  13  -  x    ⇒   y  =  13 - 7

y  =  6

Related Questions

In a shopping district with a variety of stores, 9 of the stores sell jewelry. The jewelry stores make up only 3% of the shopping district. How many stores are in the shopping district?

Answers

Answer:

When I did this in middle school, the teacher made it unnecessarily difficult     (-_-), so here`s my own method for you.

Finding 1%:

If 9 is 3%, then 3 is 1%. This method only works when the sides are divisible.

You can use the 1% to find the total, which is 100%.

3 stores (or 1%) x 100 = 300.

There are 300 stores in the shopping district.

Hope that helps

What is a graphical word that means the same as the letter "a" in
exponential functions?​

Answers

Answer:

Base of the function. Starting value

Step-by-step explanation:

A photography studio charges $50 for a sitting fee and 6 prints. Luigi increased his order to 11 prints and paid $65. Write an equation in point-slope form.

HELP ME PLEASEEEE!!!

Answers

Answer: Sitting fee - 32$

Step-by-step explanation:

This is a system of equations(let x represent the sitting fee)

x+6y=50

x+11y=65

You want to isolate the x variable - x+6y-6y=50-6y ; x = 50-6y

Input this into the 2nd equation: 50-6y+11y=65 ; 50+5y=65

Subtract 50 from both sides. 5y=15 (Divided 5y on both sides) ; y=3

Now that y = 3 input this into any equation I choose the 1st one.

x+6(3) = 50 ; x + 18 = 50 (Subtract 18 on both sides to get x)

x = 32

Prove: 32 + 6(3) = 50 ; 32+18 = 50 ; 50 = 50 True

PLEASE HELP! 5TH GRADE MATH! Select the best estimate of the product of Select the best estimate of the product of 52 x 89 = ____

Answers

Answer:

400

Step-by-step explanation:

50x80=400, you just ignore the ones digits so its easy to solve. (5x8x100)

III
Knowledge Check
Rewrite the equation below so that it does not have fractions.
2
3
x + 4 =
4
Do not use decimals in your answer.
Х
+
5
?

Answers

Answer:

[tex]9x- 60=10[/tex]

Step-by-step explanation:

Given

[tex]\frac{3}{4}x - 5 = \frac{5}{6}[/tex]

Required

Rewrite to remove fractions

The denominators in the above expression are 4 and 6.

So, first we take the LCM of 4 and 6

[tex]LCM = 12[/tex]

Next, multiply both sides of the equation by this LCM (12)

[tex]12 ( \frac{3}{4}x - 5) = \frac{5}{6} * 12[/tex]

[tex]12 * \frac{3}{4}x - 12 *5 = \frac{5}{6} * 12[/tex]

[tex]3 * 3x- 60=5 * 2[/tex]

[tex]9x- 60=10[/tex]

I need the answers ASAP ? No rocky ?

Answers

Answer:(-1,1) - (4,4)

Step-by-step explanation:

ez

2. Write the following rational numbers in order from smallest to largest: 3 1.25, V2, 18, 1.875, 13
​

Answers

v2 1.25 1.875 3 13 18

Multiple Choice
What is the domain of the function below?

{(0, 2), (3, 1), (5,2), (8,4)}?

A. {1, 2, 4}
B. {0, 3, 5, 8}
C. {0, 1, 2, 3, 4, 5, 8}
D. {(0, 2), (3, 1), (5,2), (8,4)}

Answers

Domain is the x values.

The x values in the given function are: 0,3,5,8

The answer would be B. {0,3,5,8}

Help Me Find The Inequality of the graph ​

Answers

Hope this help Can ask any doubt

gas is 2.09 per gallon if nate filled up his car and spent 33.44 how many gallons did he put in his car

Answers

33.44/2.09 = 16
He puts 16 gallons

Answer:

16 gallons

Step-by-step explanation:

33.44 divided by 2.09 is 16, so he put 16 gallons in his car.

At the bake sale I said cookies for 5cents each your earned $4.50 how many cookies did you sell

Answers

Answer:

90 Cookies

Step-by-step explanation:

4.50 ÷ .05 = 90

Answer:90 cookies

Step-by-step explanation: Here is what I did, I calculated 4.50 divided by 0.05 because it is 5cents. I divided it that why because we are trying to know how many cookies we sold out of that number. please tell me if I'm wrong and I'm sorry it I am wrong you can correct me if you want. hope this helps :)


Which statement below best describes what a ratio is.
A . A comparison
B. A comparison of many things
C.A number
D. A comparison of two quantities using diwasion

Answers

A. A ratio is a comparison

Hector has 10 cups of flour. Which equation shows how to determine the number of Two-fifths of a cup servings there are in the 10 cups of flour?

Answers

Answer:

10 divided by two fifths = 25

I need help ASAP plz

Answers

Answer:

With what?

Step-by-step explanation:

Answer:

cant help uoi b1t ch

Step-by-step explanation:

will make you BRAINLIEST please help me please​

Answers

Answer:

You have to substitute the x-values into the function :

[tex]f(x) = {11}^{x} [/tex]

[tex]f( - 2) = {11}^{ - 2} = \frac{1}{121} [/tex]

[tex]f( - 1) = {11}^{ - 1} = \frac{1}{11} [/tex]

[tex]f(0) = {11}^{0} = 1[/tex]

[tex]f(1) = {11}^{1} = 11[/tex]

[tex]f(2) = {11}^{2} = 121[/tex]

b -2 = 9/b-2
Answer ?

Answers

Step-by-step explanation:

I don't know if it's correct

b-2=9/b-2 (b isn’t equal of 0)
b=9/b-2+2
b=9/b
b^2=9
b=3 or b=-3

Paul has 56 books and 8 bags . he places an equal number of books in each bag . how many books are in each bag

Answers

56/8 equals 7. There are 7 books in each bag.

Whats the reciprocal for -4

Answers

Answer:

It is n-1. Does this help any or not?

Answer:

1/4

Step-by-step explanation:

so -4 is basically -4/1, you flip that and change the negative symbol to positive, making it 1/4.

x2 – 11x + 5 = -2x
Solve equation to the nearest tenth

Answers

Answer:

x = 5/7 -> 0.714285 which to the nearest tenth would be 0.7

Step-by-step explanation:

is it x*2 or x^2?

If it were x to the power of two, then the answer would be about x1 = 0.594875 and x2 = 8.40512

SOMEONE PLEASE HELP!!!!

Answers

Answer: it’s C

T r u s t M e ;)

The GFC is 3a^2b^2
The second response

Sharon correctly answered 21 out of 24 questions on a math quiz. Which is this ratio as a decimal?
0.625

0.667

0.840

0.875



pls help♡​

Answers

Answer:

0.875

Step-by-step explanation:

To find the decimal, you divide the 21 by the 24.

21/24 = 0.875

A substance has a density of 0.70 g/mL, if it has a volume of 3.0 mL, what is its mass?

Answers

Answer:

2.1 g

Step-by-step explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question we have

mass = 0.70 × 3

We have the final answer as

2.1 g

Hope this helps you

needing help asap for anyone that knows!!

Answers

AC/DF= BC/EF is the correct answer! :)

Answer:the forth answer is correct

Step-by-step explanation:

What are the zeros of fx) =-8x+ 16? Yes

Answers

Answer:

There is one Zero.

Step-by-step explanation:

Hope this helps:)

The zeros are 2 but I am not sure

Someone please help I forgot how to do this

Answers

Can u send a close up picture I can’t see it

find the value for x!

Answers

Answer:

x=20

Step-by-step explanation:

3x+15=4x-5

20=x

6 Rebecca burns an average of 210 calories in 35 minutes of ballet.
Part A
How many calories does Rebecca burn per minute?
Show your work.
Rebecca burns 6 calories per minute.
Part B
Which equation models howmany calories, c, Rebecca burns in m minutes?
A
B
210c=
35/m
35m
C
DC6m
Part C
Does Rebecca burn more than 400 calories per hour? Explain.
c
6cm

Answers

Answer:

c=6m because if you divide it normally with no letters it will be she burns 6 calories per minute

what is the total area of the four walls of a rectangular room 12 ft long by 13 ft wide by 9 ft high?

Answers

Answer:

your mom

i dunno what else to put here lol

Answer:

Total area of four walls is 450ft

Step-by-step explanation:

First to find area of one wall is lenghth times height 2(12 x 9)

Second to find the area of the two other walls it’s height times width 2(13 x 9)

third add then up and you get 450

What is the area of a rectangle with a length of 3 ft and a width of 16.1 ft? 48.3 ft2 38.2 ft2 24.15 ft2 19.1 ft2

Answers

Vent fmtsmstjqrjatjwtnatnatn

If bc+ad=b solve for a

Answers

Answer:

a = (b - bc)/d

Answer:

ad=b-bc

a=b-bc/d or  a=b-bc

                        --------

                            d

*everything is divided by d on the other side...so b-bc is all divided by d

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