Nicole had the exact amount of money to buy 9 pens.
Instead she bought only 5 pens.
She used the rest of the money to buy 7 notebooks at $1.20 each.
How much money did Nicole have at first?​

Answers

Answer 1

Answer:

18.90$

Step-by-step explanation:

Pen = p

Notes = n

n = 1.20

5p + 7n = 9p

-9p + 5p + 7n = 0

-4p + 7n = 0

-4p + (7*1.2) = 0

-4p + 8.4 = 0

8.4/4 = p

2.1 = p

9p = 9*2.1

9p = 18.90$


Related Questions

WILL.MARK BRAINLEST. ( The length of a rectangular garden is 5m longer than its breadth .If its perimeter is 150 m,find the area of the garden ) step by step​

Answers

Answer:

1400m^2

Step-by-step explanation:

Solution,

Let the breadth of the rectangle be x m, then the length of the rectangle will be x+5 m,

Now,

Perimeter of the rectangle=2(l+b)

150=2(x+5+x)

150=2(2x+5)

150=4x+10

150-10=4x

140=4x

140/4=x

35=x

So, the breadth of the rectangle=35 m

and length=(35+5)m=40m

Again,

Area of the rectangle=l×b

=40m×35m

=1400 m^2

I hope it helped U

stay safe stay happy

Answer: Area= 1400[tex]meter^{2}[/tex]

Step-by-step explanation:

ok  so  we can assume the

breadth=X

so, length = X+5 (because the length is 5 meters more than the breadth)

perimeter= 150 meters

the formula of the perimeter of a rectangle = 2 x ( Length + Breadth)

so now if we put the values,

2 * ( X+5 +X) = 150 ( because 150 is the perimeter)

2 * (2X + 5) = 150 (the value became 2x because when we add two variables with the same value it will be written as 2(any variable)).

now we multiply  2 with both sides

so ( 2 * 2X) + (2 * 5)

hence, 4X + 10 = 150

now we will solve the equation,

4X= 150 -10 (because we did transposal the signs will change from "+" to "-")

4x= 140

again with the transposal (when we write a number with a variable it shows that it means the number multiplied by the variable in this case it is 4 multiplied by X ) so when we transpose we will have to divide because multiplication turns into division while transposing

so now,

X= 140÷4

which is equal to 35

so finally X = 35

so as we have written in the beginning breadth= X

and LENGTH= X+5

so now we have found X

BREADTH= 35

LENGTH= 40 (because 35+5 is 40)

now we have to find area the formula for finding the area is LENGTH×BREADTH

so, 40 × 35 = 1400

now we put the unit which is square meters also known as [tex]m^{2}[/tex]

so there is your final answer 1400[tex]m^{2}[/tex]

x+4+3(x)=x-8
Answer this for me

Answers

Step-by-step explanation:

3x= (-8) -4

x=(-12)/3

x= -4

Hello!!! I can help

Answer:

 =  − 4

Step-by-step explanation:

what is ????????????????? 21x+28<10-3x

Answers

Answer:

x < -3/4

Step-by-step explanation:

21x + 3x < 10 - 28

24x < -18

x < -18/24

x < -3/4

Choose the postulate that is NOT represented in the diagram.
A
If two lines intersect, they intersect in exactly one point.
B
Given a point on a plane, there is one and only one line perpendicular to the plane through that point.
С
If two points lie in a plane, then the line containing those points will also lie in the plane. D
if two planes intersect, they intersect in exactly one line.


Answers

A Hope this helps you

Is 17/2 rational or irrational?

Answers

Answer:

it's a Rational number

Step-by-step explanation:

because it repeats and stops

Hi, I'm happy to help!

A number is rational if it repeats itself, or stops. This number, both in fraction and decimal form (8.5), stops. This means that the number is rational.

I hope this was helpful, keep learning! :D

GUYSS HELPP!!! How do you see the pattern growing?

Answers

7, 12, 17, it’s basically adding 5 everytime

Step-by-step explanation:

i see it as adding to the exterior while taking away from the interior getting bigger but losing the inside as an exchange

If 12 + 2 = 14, then 14 = 12 + 2 true or false​

Answers

TRUE TRUE TRUE TRUE TRUE

Answer:

true

Step-by-step explanation:12+2=14 that is simple distributive property

if i have one quarter,7 dimes, and four nickes how much money do i have.​

Answers

1.15 $ ok Iko ok okie

0<4K-5k

Can I get some help thanks

Answers

Answer:

0>k

Step-by-step explanation:

0<4k-5k

Combine like terms

0<-k

Multiply each side by -1, remembering to flip the inequality

0>k

Chandler drives his car 20 miles round trip to work every day. How many total miles

does he drive to and from work in 5 days?

Answers

If I'm correct, you just multiply 20 times 5 and you get 100 miles. If it's 20 miles per day, you just count up 20 miles per day as the days increase.

What is the solution of
2x = 3 + 4 = 7?

Answers

Answer:

x = 6

Step-by-step explanation:

Given

[tex]\sqrt{2x-3}[/tex] + 4 = 7 ( subtract 4 from both sides )

[tex]\sqrt{2x-3}[/tex] = 3 ( square both sides )

2x - 3 = 3² = 9 ( add 3 to both sides )

2x = 12 ( divide both sides by 2 )

x = 6

How many gallons, quarts, and pints are in 72 cups (not all together)

Answers

Answer:

72 cups=4.5 gallons

72 cups=18 quarts

72 cups=36 pints

Step-by-step explanation:

To find out how many pints are in 72 cups you have to divide the volume value by 2. To find out how many quarts are in 72 cups you have to divide the volume value by 4. To find out how many gallons are in 72 cups you have to  divide the volume value by 16.

Hope this helped for you!

What is the probability of rolling 2 standard dice which sum to 11?
Answer in fraction form.

Answers

Answer:

total is 11

dice is 2

in percentage is 5.56%

in fraction form its 139/25

Step-by-step explanation:

hope that helps>3

Write the descending chromatic scale beginning on C

Answers

Answer:

c(half note), b(flat, quarter note), a(quarter note), g(quarter note), f(quarter note), e(flat, quarter note), d(quarter note), c(half note)

Step-by-step explanation:

i cant draw it on the sheet music itself but I hope that helps

What is the area?
Write your answer as a fraction or as a whole or mixed number.

Answers

Answer:

1 2/3 cm^2.

Step-by-step explanation:

Area = 1 2/3 * 1

= 1 2/3

Segment addition postulate

Find PQ

Answers

Answer:

PQ = 4

Step-by-step explanation:

As ; PQ=QR

PR = 8

PR= PQ+QR —> 8 = 2x —> x= 8/2 = 4

SO ; PQ = 4 , QR = 4

I hope I helped you^_^

Solve the following equation for x to find the total number of people who became members of a social networking site for a certain month:


x = 0.8x + 72


How many people became members of the site that month?


A.112

B. 288

C.360

D.432
HELP ME PLZ IT DUE IN THREE HOURS

Answers

X-0.8x=72
0.2x=72 /0.2
X = 360

solve for u
-u + 114 = 262
PLEASE WITCHER3

Answers

Hi ;-)

[tex]-u+114=262\\\\-u=262-114\\\\-u=148 \ \ /:(-1)\\\\\huge\boxed{u=-148}[/tex]

Answer:

[tex] - u + 114 = 262 \\ u = 114 - 262 \\ u = - 148 \\ thank \: you[/tex]

ab+c=de-f solve for d

Answers

Answer:

d=(ab+c+f)/e

Step-by-step explanation:

ab+c=de-f

de=ab+c+f

d=(ab+c+f)/e

Answer:

d = (ab + c + f)/e

BRAINLIEST, PLEASE!

Step-by-step explanation:

ab + c = de - f

ab + c + f = de

d = (ab + c + f)/e

HELP ASAP will give BRAINLIEST

Answers

Hey there! I'm happy to help!

The question tells us that m∠JKL is 54. We see from the diagram that this is the combination of the angles m∠JKM and m∠MKL. So, we can combine their values, which are equal to 54 to find x.

13x+1+5x+4=54

We combine like terms

18x+5=54

We subtract 5 from both sides.

18x=49

We divide both sides by 18.

x=2.7222222....

Now, we want to find the measure of m∠MKL. We plug our x value into the value of this angle and evaluate.

5(2.722....)+4=17.61111....... or 17 11/18.

Have a wonderful day and keep on learning! :D

the expression x - 0.10 X gives the cost of an item that is discounted 10% write this expression in the other way​

Answers

Answer:

Step-by-step explanation:

Take out a common factor (x)

x ( 1 - 0.10 )                

Now do the subtraction

0.90x

What is 3(x-6)+12=6(x+1)-3x show your work.

Answers

Answer:

No solution.

Step-by-step explanation:

3(x - 6) + 12 = 6(x + 1) - 3x

3x - 18 + 12 = 6x + 6 - 3x

3x - 6 = 3x +6

-6 = 6

-6 ≠ 6

Estimate the shaded areas of the following shapes.???​

Answers

Answer:

436cm^2

Step-by-step explanation:

you're gonna have to round up to the nearest whole number.for no.2 split the shape so that it'll give u two rectangles.for no.3 find the area of the small rectangle and minus from the area of the big rectangle

Big rectangle =30*16=480

small rectangle =4*11=44

480-44=436

The smallest number when subtracted from the difference of the square of 29 and 22 gives a perfect square is​

Answers

Answer:

Your answer is 33.

step- by step :

29×29-22×22=841-484

= 357

Closest square of 18 which is 324.

So, 357-324= 33. ans.

A rectangle is a quadrilateral with 444 right angles. A rhombus is a quadrilateral with 444 sides of equal length. What is the most precise name for a shape that is both a rectangle and a rhombus

Answers

A shape that has both 4 right angles AND 4 sides of equal length is a square.

Answer:

Square

Step-by-step explanation:

A shape with 4 right angles and 4 sides of equal length is a square

It makes sense if you think about it for a couple minutes

Please help with questions 4,5 and 6!

Answers

Answer:

Step-by-step explanation:

4) ∠CTB , ∠PTA are vertical angles

If sum of two angles add up to 90, then they are Complementary angles.

If sum of two angles add up to 180, then they are Supplementary angles.

∠FTA and ∠ATR are supplementary angles

5) ( 1 , 2 )  & (3 , 6)

[tex]Midpoint=\left(\dfrac{x_{1}+x_{2}}{2},\dfrac{y_{1}+y_{2}}{2}\right)[/tex]

                [tex]= \left(\dfrac{1+3}{2},\dfrac{2+6}{2}\right)\\\\=\left(\dfrac{4}{2} \ , \dfrac{8}{2}\right)[/tex]

             [tex]\=\left(\dfrac{4}{2},\dfrac{8}{2}\right)[/tex]

             = (2 , 4)

6) Distance = [tex]\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}[/tex]

                  [tex]=\sqrt{(3-1)^{2}+(6-2)^{2}}\\\\=\sqrt{2^{2}+(4)^{2}}\\\\=\sqrt{4+16}\\\\=\sqrt{20}\\\\= 4.47[/tex]

4. In the diagram, ABCD is a straight line. Calculate the values of x and y. ​

Answers

Answer:

x is 108° and y is 144°

Step-by-step explanation:

for x:

[tex] x + 36 \degree + 36 \degree = 180 \degree \\ \{isoceles \: triangle \: angle \: sum \} \\ x + 72 \degree = 180 \degree \\ x = 180 \degree - 72 \degree \\ x = 108 \degree[/tex]

for y:

[tex]y + 36 \degree = 180 \degree \\ \{straight \: line \: angles \} \\ y = 180\degree - 36\degree \\ y = 144\degree[/tex]

Answer:

X+36+36=180

X+72=180

X=180-72

X=108

36+BC^D=180

BC^D=180-36

BC^D=144

BC^D corresponds with y

Therefore y=144

a times b whole cube

Answers

Answer:

i don't know what's the question

Step-by-step explanation:

like I don't know

HELPPGPGPPHPHGPPFPSLLSLSL

Answers

If Carla would have bought 4 plants it would have been 13 dollars from green touch

If she would have bought them for the grocery store it would have been 14 dollars

So in conclusion she saved 1 dollar
Option 3

Lyndsey has 4 ½ cups of ice cream and wants to give each child at the shelter ½ cup of ice cream. How many children can she serve?



A.4


B. 5


C. 8


D. 9

Answers

Answer:

d

Step-by-step explanation:

2 halfs for each cup and the extra 1 equals 9 total

Answer:

9 children.

Step-by-step explanation:

4 1/2 / 1/2

= 9/2 / 1/2

= 9/2 * 2

= 18/2

= 9.

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