Isaiah and Cooper work at a dry cleaners ironing shirts. Isaiah can iron 25 shirts per hour, and Cooper can iron 30 shirts per hour. Cooper worked twice as many hours as Isaiah and they ironed 340 shirts between them. Write a system of equations that could be used to determine the number of hours Isaiah worked and the number of hours Cooper worked. Define the variables that you use to write the system.

Work Shown:

[tex]f(x) = -2(0.8)^x\\\\f(0) = -2(0.8)^0\\\\f(0) = -2(1)\\\\f(0) = -2\\\\[/tex]

In the third step, I used the idea that [tex]x^0 = 1[/tex] where x is any nonzero number.

Answer: slope=3

           y intercept :(0, -1)

Step-by-step explanation:Use the slope-intercept form to find the slope and y-intercept

Answer:

4

Step-by-step explanation:

12x>48 so divide 48 by 12 to solve for x so x is 4

Answer:

16.16.16

Step-by-step explanation:

please let me know if I'm wrong

but I learned that you don't do 4×2 you have to multiply 4 twice by itself so it would be 16 because 4×4=16

Answer:

Step-by-step explanation:

The slope is the change of y over the change of x.

the change of y:77-22=55

the change of x:49-14=35

55/35 simplified is 11/7

Here's a graph of the line segments connected on desmos:

your question does say to graph a line though, so add arrows instead of dots in my screenshots shown

Answer: 112

Step-by-step explanation:

560/5

Answer:2

Step-by-step explanation: follow pemdas

Answer:

The constant of proportionality is 3

Step-by-step explanation:

Use equation y=kx where k is constant of proportionality.

y/x is it. so 12/4=3

3

Answer: Um, –28?

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

4.00 divided by 1.00 = 4

Answer:

P=160+6x

Q=x+40

H=4x-5

P+Q+H=180...P=61.82

Answer:

f(c) = 5 + 0.75m

Step-by-step explanation:

f(c) = 5 + 0.75(m)

where "c" is cost;

and "m" is distance in miles

Answer:

The answer is letter D.

If we solve the given function when the functions are f(x)=[tex]\sqrt{6x}[/tex] and g(x)=[tex]\sqrt{24x}[/tex] then we will be able to find it equal to 12x.

A function is a relation in which each element of x is having a value in the y element. It is written in the form of f(x).

f(x)=[tex]\sqrt{6x}[/tex] and g(x)=[tex]\sqrt{24x}[/tex]

(f.g)x=f(x)*g(x)

=[tex]\sqrt{6x} *\sqrt{24x}[/tex]

=[tex]\sqrt{6x}*2\sqrt{6x}[/tex]

=2*6x

=12x

Hence the value of (f.g)x is 12x.

Learn more about functions at https://brainly.com/question/25638609

#SPJ2

Answer:

the first one is 185 over 24 in the exact form

Step-by-step explanation:

Answer:

35.60

Step-by-step explanation:

Multiply the original price $89 times the mark down percentage 60%

You get 53.40, then subtract it from 89.

Answer:

She paid $35.60 for the jacket.

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

Answer:

m = 2

Step-by-step explanation:

Answer:

No, there is no enough flour for each of his friends to get a cupcake

Step-by-step explanation:

Let us use the ratio method to solve the question

∵ This recipe makes 2[tex]\frac{1}{2}[/tex] dozen cupcakes

∵ Each dozen contain 12 cupcakes

∴ The number of cupcakes can the recipe make = 2[tex]\frac{1}{2}[/tex]  × 12

∴ The number of cupcakes can the recipe make = 30 cupcakes

∵ The recipe calls for 3[tex]\frac{1}{3}[/tex] cups of flour

→ That means 3[tex]\frac{1}{3}[/tex] cups of flour can make 30 cupcakes

∴ 3[tex]\frac{1}{3}[/tex] cups of flour makes 30 cupcakes

∵ Anthony’s mother has only 1 cup of flour

→ By using the ratio method

→  flour  :  cupcake

→  3[tex]\frac{1}{3}[/tex]      :  30

→   1       :   x

→ By using cross multiplication

∵ 3[tex]\frac{1}{3}[/tex] × x = 1 × 30

∴ 3[tex]\frac{1}{3}[/tex] x = 30

→ Divide both sides by 3[tex]\frac{1}{3}[/tex]

∴ x = 9

∵ x represents the number of cupcakes  

∴ Anthony’s mother can make 9 cupcakes with 1 cup of flour

∵ Anthony has 12 friends at his daycare

∵ The number of the cupcakes = 9

∴ The number of cupcakes is not enough for each of his friends to

   get a cupcake

Answer:

The reason why it helps to have a plan of proof before writing the proof is that the proof plan is the collection of recollected knowledge about the question that will ensure that the required proof is achieved

The proof plan is equivalent to a  virtual construction, consisting of the required parts and how the parts fit together, that obeys or satisfies the actual conditions when the written, step by step on paper

Without a proof plan, the required parts of the proof and therefore how the parts will fit to provide the proof will be absent as well as the non required parts written down to provide a proof without a plan can be confounding

Step-by-step explanation:

Answer: c) perpendicular

Perpendicular slopes always multiply to -1. This is assuming neither line is vertical.

Answer: 20

Step-by-step explanation:

From the question, to make the punch recipe, the following are needed:

Ginger Ale - 40%

Orange Juice - 25%

Pineapple juice - 20%

Sorbet - 15%

Since we are told that Elise doesn't like sorbit, so she omits that ingredient and adds 5 percent to each of the other ingredients. The the new percent will be:

Ginger Ale - 40% + 5% = 45%

Orange Juice - 25% + 5% = 30%

Pineapple juice - 20% + 5% = 25%

Sorbet - 15% - 15% = 0

To get the total cups of punch that'll be used, let it be represented by y. Therefore,

30% of y = 6

30/100 × y = 6

0.3 × y = 6

0.3y = 6

y = 6/0.3

y = 20

Therefore, she'll have 20 cups of punch.

Given:

Initial speed of typing = 35 words per minute

At the end of the course her typing speed = 77 words per minute

To find:

The percent of increase in her typing rate.

Solution:

We know that,

[tex]\text{Percent of increase in her typing rate}=\dfrac{\text{New speed - initial speed}}{\text{Initial speed}}\times 100[/tex]

[tex]\text{Percent of increase in her typing rate}=\dfrac{77-35}{35}\times 100[/tex]

[tex]\text{Percent of increase in her typing rate}=\dfrac{42}{35}\times 100[/tex]

[tex]\text{Percent of increase in her typing rate}=120\%[/tex]

Therefore, her typing rate is increased by 120%.

Answer:

The company can manufacture 135 boxes of stuffed animals for $5000

Step-by-step explanation:

To find b, substitute $5000 for c(x), so

Then subtract 2300 from both sides of the equation, so

Finally divide both sides of the equation by 20, so

To check your answer substitute 135 in as b...

Answer:

what are you doing

Step-by-step explanation:

it's the third one, slope -1 y intercept 3

Answer:

Step-by-step explanation:

Step one:

given data

we are told that the sales person's earnings is 4% of the sales made.

given that the sales made is $37,000 worth of furnaces.

Step two:

we want to find 4% of $37,000

=4/100*37000

=0.04*37000

=1480

hence for $37,000 the earning will be $1480.

Now suppose sales is doubled that is 37000*2= 74000

we want to find 4% of $74,000

=4/100*74000

=0.04*74000

=2960.

the earnings is $2960.

So if sales doubles the earnings will double

Step-by-step explanation:

so sorry

don't know but please mark me as brainliest please

Step-by-step explanation:

A ={1,2,3,4,6,12}

B={4,6,8,10

[tex]A \cup B=[/tex]{1,2,3,4,6,8,10,12}