Please help.
Mary is currently 14 years older than her friend Courtney. In 5 years she will be 2 times as old as Courtney. Let x be Courtney’s age and solve for both of their ages.

How old is Courtney?

Answer:

He made a profit of 40-32 = Rs 8 per copy.

He got a 25% profit in the business of copies

Step-by-step explanation:

Newton buys and sells copies in his business. He bought 12 dozen = 12*12=144 copies in Rs 4320.

He also has Rs 288 in expenses to bring the copies to his shop, thus the total cost is 4320+288=4608.

Each copy finally cost 4608/144 = Rs 32.

He sold all copies for Rs 5760, at 5760/144= Rs 40 each.

Therefore, he made a profit of 40-32 = Rs 8 per copy.

The total profit in his business of copies was 5760 - 4608= 1152

This is a percentage of:

[tex]\frac{1152}{4608}*100 = 25\%[/tex]

Answer:

4

General Formulas and Concepts:

Algebra I

Step-by-step explanation:

Step 1: Define

|-4|

Step 2: Evaluate

4

Answer:

24

Step-by-step explanation:

If there will be 8 for 30

and it's 90 it mean it's just has more 30's

30 + 30+ 30=90

Answer:

3:2 represents blue to white

2:3 represents white to blue

3:5 represents blue to total

Answer:

Step-by-step explanation:

Answer:

so what are we trying to figure out?

Step-by-step explanation:

Answer:

(2,1)

Step-by-step explanation:

Answer:

Total number of student next year = 54,648

Step-by-step explanation:

Given:

Total number of student = 54,000

Growth rate = 1.2% each year

Find:

Total number of student next year

Computation:

Total number of student next year = Total number of student(1+Growth rate)

Total number of student next year = 54,000(1+1.2%)

Total number of student next year = 54,648

Answer: 2 rational solutions

Step-by-step explanation:

When the discriminant,  b² + 2a,  is greater than 0, there are two real solutions. 49 is the perfect square of 7, so the solutions are also rational: plus and minus 7

When solving a quadratic equation using the quadratic formula, the value of the discriminant is 49. Type of solutions the quadratic equation will have Two Real Rational Solutions.

Discriminant is a number that can be calculated from any quadratic equation.

What is quadratic equation?

A quadratic equation is an equation that can be written in the form of [tex]ax^2+bx+c[/tex]  (where[tex]a\neq 0[/tex]).

Formula for the Discriminant [tex]=b^2-4ac[/tex]

Also,

If Discriminant is Positive and perfect square then quadratic equation will have Two Real Rational Solutions.

We have,

Discriminant [tex]=49[/tex]

So,

We have Discriminant which is a positive number and also it is a perfect square. That means quadratic equation will have Two Real Rational Solutions.

Hence, we can say that When solving a quadratic equation using the quadratic formula, the value of the discriminant is 49. Type of solutions the quadratic equation will have Two Real Rational Solutions.

To know more about discriminant click here

https://brainly.com/question/15884086

#SPJ2

Answer:

159.09

Step-by-step explanation:

.3563 * 446.51 = 159.09

Answer:

30

Step-by-step explanation:

Answer:

30

Step-by-step explanation:

6/0.20 = 30.

Since to Normally find a percentage of a number, you would Multiply the percentage in decimal form, multiplied times the full amount, to get a percentage. ( 30*0.2 = 6)

So to find the full amount (in this case of students) Reverse this process, and divide the Portion by the percentage (In this scenario, 6/0.20) and you will get the full amount.

I hope this helps!

you should take the second plumbler

Step-by-step explanation:

as

Answer:

There would be 2 sliders and 8 hotdogs.

Step-by-step explanation:

1 slider= 200 cal

2 sliders= 400 cal

2x4= 8

1 mini hotdog= 100 cal

8 mini hotdogs= 800 cal

800 cal + 400 cal = 1200 cal

9514 1404 393

Answer:

  316 m²

Step-by-step explanation:

The centerline length of the walkway is 2×(52 m +27 m) = 158 m.

The area is the product of the walkway's centerline length and its width:

  A = (158 m)(2 m) = 316 m²

_____

More detail on this approach

The centerlines of the long-side walkways are 25 m + 1 m + 1 m = 27 m apart. The centerlines of the short-side walkways are 50 m + 1 m + 1 m = 52 m apart.

The total length of the centerline is the perimeter of a 27 m by 52 m rectangle:

  P = 2(L+W) = 2(52 m +27 m) = 158 m

_____

Usual approach

The area with the walkways is 54 m by 29 m = 1566 m². The area without the walkways is 50 m by 25 m = 1250 m². The difference is the area of the walkway, 1566 -1250 = 316 square meters.

Step-by-step explanation:

[tex]\huge\bold\purple{ 0.316 }[/tex]

Answer:  0.31690140845=(rounded thousandths) 0.317 or

0.32 (rounded hundredths)

Step-by-step explanation: i think if you are dividing 11.25 into 35.5

Answer:

Answer:

2)Ben Bean's Drinks

1) 4 variables, of which 1 is categorical

Step-by-step explanation:

Popular Drinks at Ben's Beans Coffee Shop

Drink                  Type           Calories      Sugars (g)        Caffeine (mg)

Brewed coffee      Hot             4                    0                        260

Caffè latte              Hot            100                  14                      75

Caffè mocha          Hot               170                 27                      95

Cappuccino         Hot               60                  8                        75

Iced brewed coffee Cold        60                 15                         120

Chai latte              Hot            120                 25                       60

The individuals in this data set are:

1) Ben Bean's  customers

2) Ben Bean's drinks

3) Caffeine Contents

This is a list of the coffee drinks not customers so option 2 is correct. Nor it deals with caffeine content.

The data set contains

1) 4 variables, of which 1 is categorical

2) 4 variables , of which 2 are categorical

3) 6 variables , of which 1 are categorical

4)  6 variables , of which 2 are categorical

Here option1 is correct because we have 4 variables ( type, calories, sugar, caffeine)out of which 1 ( type) is divided into 2 categories (hot or cold).

Answer:

[tex] {4}^{3} = 64[/tex]

Step-by-step explanation:

[tex] \frac{ {4}^{8} }{ {4}^{5} } = {4}^{3} [/tex]

Subtract the numerator exponent from the denominator exponent.

[tex]8 - 5[/tex]

Answer:

See attached

Step-by-step explanation:

1)

2)

3)

4)

5)

Note. m∠FHG = (x + 9)°, this is what I see. If not then  the value of  x is incorrect.

Answer:

4t

Step-by-step explanation:

Let's form an equation here just to put it visually.

So it would be t+3*t

We can also write this as t+3t (If they're right next to eachother, it still indicates multiplication)

Now we can do t+3t which is 4t

If this doesn't make sense, then you can look at it this way

You do 1t+3t and since they're like terms, you can combine them and do 4t.

Answer:

15

Step-by-step explanation:

if you put 5 in every box it will add up to 45, so you made 15 bird houses

Answer:

10

High Hopes

                        Barry-

Answer:

10

Step-by-step explanation:

I believe the answer is ten! I hope this helps you!

Answer:

The angle sign doesn't look like 56.6 degrees

Step-by-step explanation:

Answer:

C. x = 50

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Answer:

By putting some values of x find the y values

Step-by-step explanation:

for example, let x=-1 and x=2y

then -1=2y

y=-1/2

I hope it helps

Answer:

11

Step-by-step explanation:

Alayna needs 11 hours of work.

divided 71.50 by 6.50

71.50 / 6.50

Answer:

She would need to work 11 hours.

Step-by-step explanation:

You would have to do 71.50 divided by 6.50 and it would give you your answer.