Joanna and Kyle went to store. Joanna bought 2 erasers and 5 pens which altogether cost $17. Kyle
bought 4 erasers and 2 pens which he paid $10 for. Calculate the cost of one eraser and the cost of one
pen.

Answers

Answer 1

Answer: 2x + 3= 9

Step-by-step explanation: hope it's correct well your welcome

Answer 2

Answer:

Erasers are $1 and pens are $3

Step-by-step explanation:

2x+5y=17

4x+2y=10

y=5-2x

2x+5(5-2x)=17

2x+25-10x=17

8x=8

x=1

plug x in and get 3 for Y


Related Questions

find 1+1+1in binary number system of computer ​

Answers

Answer:

1

+1

+1

soln

here

1+1+1

=10+1

=11

Answer:

[tex]{\huge{\pink{\underline{\underline{SoLuTiOn}}}}}[/tex]

1+1=10

10+1=11

11 is answer.

The flashlight you are using to find your phone is a green flashlight which isn't good for finding things in the dark. You decide to go grab your yellow flashlight instead. Which wave property differs in the two flashlights causing this difference in color? Explain.

Answers

Answer:

their wavelength

Explanation:

A wave refers to disturbances or vibrations that travel from one medium or vacuum to another in an organized way, while wavelength refers to the distance between two consecutive peaks of waves.

For example, the wavelength of green light is 550nm (nanometre), while that of yellow light is 580nm (nanometre).  

This difference in the color of the flashlights is visible to the human eyes because the human eye is believed to be able to detect any wavelengths of light from 700 nanometres to about 400 nm for violet light.

If a train travels 420 miles in 24 hours , what is it’s unit rate in travel ?

Answers

Answer:

17.5 miles per every hour

Step-by-step explanation:

All you do is divide 420 by 24 to find the unit

Unit rate = total miles/ total time.

Unit rate = 420/24 = 17.5 miles per hour

The density of gold is 19.3 g/cm?
A gold bar has volume 150 cm
Work out the mass of the gold bar.

Answers

Answer:

2895 grams

Step-by-step explanation:

Use the density formula, d = m/v, where m is the mass and v is the volume.

Plug in the density and volume into the formula, and solve for m:

d = m/v

19.3 = m/150

Multiply each side by 150:

2895 = m

So, the mass is 2895 grams

NEED HELP WITH MATH!!! 10pts

Answers

Answer:

D

Step-by-step explanation:

Divide the two equations using polynomial division and you will get your answer.

Hope this helps

help.

Solve 4/y = 2/11.

The solution is y=__ ?

Answers

Answer:

See below.

Step-by-step explanation:

4/2=2

2*11=22

y=22

-hope it helps

Answer:

22

Step-by-step explanation:

4/22 is equivalent to 2/11 because 2/11 is 5 and a half times 2. So the second one has to be 5 and a half times 4. So the answer is 4/22.

ASAP for BRAINLIEST :fill in the blank if 19/24=3/x, then x is

Answers

Answer:

x= 72/19

Step-by-step explanation:

et's solve your equation step-by-step.

19

24

=

3

x

Step 1: Cross-multiply.

19

24

=

3

x

19*x=(3)*(24)

19x=72

Step 2: Divide both sides by 19.

Enter the values in order from least to greatest. |−2|, |3|, |−9|, |1|

Answers

Answer:

(-9), (-2), 1, 3

Step-by-step explanation:

Answer:

|1|, |-2|, |3|, |-9|

Step-by-step explanation:

Find the absolute values

Order from least to greatest

I need help with this

Answers

Answer:

No

Step-by-step explanation:

-10 is not greater than 9. A number that is more positive is more greater.

Answer:

No

Step-by-step explanation:

-10 < 9 according to the number line

The Pyramid of Khufu in Giza, Egypt was the world's tallest free-standing structure for more than 3,500 years. Its original height was about 144
meters. Its base is approximately a square with a side length of 231 meters.
The diagram shows a cross section created by dilating the base using the top of the pyramid as the center of dilation. The cross section is at a
height of 96 meters
144 m
=> A
96 m
231 m
231 m
Complete the following about the cross section
The scale factor used to create the cross section is 13
Part B
Complete the following about the cross section
The dimensions of the cross section is a Select Choice y meter by Select Choice y meter Select Choice

Answers

The scale factor used to create the cross section is 1/3. The cross section has a base side length of 77 meters.

What is an equation?

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

The height of the dilated pyramid = 144 m - 96 m = 48 m

Scale factor of dilation = 48 m / 144 m = 1/3

The side length of dilated pyramid = (1/3) * 231 m = 77 m

The scale factor used to create the cross section is 1/3. The cross section has a base side length of 77 meters.

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

910÷(−65) i don't understand

Answers

Answer:

-14

Step-by-step explanation:

Of course, 910 divided by 65 is 14, but since 65 was negative, the answer must be negative. If both numbers were negative, then it would be positive, but in this case, it would be negative as 65 was negative.


Which expression is equivalent to 50En-1(n(4n+3))

Answers

Answer:

equivalent of 50En-1+n(4n+3))is4{50(50+1)(2×60+1)+3{50(51)_2}

Answer: D

Step-by-step explanation: Im from the future D is correct on edge yw :)

2i-3n=8
i+2n=-3
solve for i and n

Answers

Answer:

n= -2/7 i= 3 4/7

Step-by-step explanation:

i=3-2n

2(3-2n)-3n=8

6-4n-3n=8

6-7n=8

6-8=7n

-2=7n

-2/7=n

=3-2(-2/7)

3+4/7

i=3 4/7

A man can make 12 birdhouses in 8 hours. How many hours will it take him to make 30 birdhouses?

Answers

20 hours because he makes 6 birdhouses in 4 hours and 5*6=30 so you need to multiply 4 times 5 because you did it to the birdhouses and you get 20

Given the polynomial 6x3 + 4x2 − 6x − 4, what is the value of the coefficient 'k' in the factored form?

6x3 + 4x2 − 6x − 4 = 2(x + k)(x − k)(3x + 2)

k=

Answers

1

2*(x+1)*(x-1)*(3x+2)

hope this helps

How did Athaliah impose wickedness upon Judah?

Answers

Answer:

By killing all but one of his family members

pls help) The vertices of a triangle are as follows: (2, 3), (4, -4), and (2, -2) If you dilate the triangle by a scale factor of 2, what are the vertices of the new triangle?
(4, 5), (6, -2), (4, 0)
(4, 6), (8, -8), (4, -4)
(4, 9), (16, 16), (4, 4)
(1, 1.5), (2, -2), (12, -12)

Answers

Answer:

(4, 6), (8, -8), (4, -4)

Step-by-step explanation:

Answer:

(4, 6), (8, -8), (4, -4)

Step-by-step explanation:

Hope this helps

1. The first three terms and the last term of a finite arithmetic sequence are - 92,- 88. -
84, ...,12.Find the number of terms in the sequence.
A. 20
B. 25
C. 27
D. 30

Answers

Common difference = -88 - (-92)
= 4
First term = -92
Formula -> Tn = First term + (n-1)d

12 = -92 + (n-1)(4)
104 = 4n-4
108= 4n
n= 27

Hope this helps, and please award brainliest if you could!

The number of terms in the given arithmetic sequence is 27 so option (C) will be correct.

What is Arithmetic progression?

The difference between every two successive terms in a sequence is the same this is known as an arithmetic progression (AP).

The arithmetic progression has wider use in mathematics for example sum of natural numbers.

Natural number = 1,2,3,4,5,6,7,8...

Now it has the same difference between any two consecutive terms d =2-1 = 3-2

Given the AP;

- 92,- 88, -84, ...,12.

First term (a) = -92

Common difference(d) = -88 + 92 = 4

The nth term or last term = 12

Nth term is given as ;

⇒ a + (n - 1)d

12 = -92 + (n - 1)4

n - 1 = 26

n = 27

Hence "The number of terms in the given arithmetic sequence is 27".

For more about Arithmetic progression

https://brainly.com/question/20385181

#SPJ2

The distance between city A and city B is 760km. A car starts to travel from A to B at 80 km/h at 8 o'clock. The other car starts to travel from B to A at 120 km/h at 10 o'clock. At what time will the cars meet?​

Answers

Speed of 1st car = 80km/h
Speed of 2nd car = 120km/h
So, 120+80= 200km/hr
Distance between city A and B is 760km
T= D/S
760/200
= 3.8

The cars will meet after 3.8 hours.

Hope this helps

Determine the quadrant in which the terminal side of the given angle lies. 230°

Answers

Answer:

The quadrant for angle 230 is quadrant 3

Step-by-step explanation:

quadrant 3

Which function has an inverse that is also a function?
G(x)=2x-3

Answers

Answer:

x/2+3/2

Step-by-step explanation:

(n − m)to the power of 2 for m = −3 and n = 7.

Answers

Answer:

100

Step-by-step explanation:

(n-m) = (7+3)

7+3 = 10

10 x 10 = 100

What is the slope of the equation y=5/4x - 7/4

Answers

Answer:

The equation of a line is given by y = mx + c; where m is the slope.

The given equation is y = 5/4 x - 7/4.

Therefore, the slope is 5/4.

helpppp plsssssssssss​

Answers

Answer:

65 degrees

Step-by-step explanation:

corresponding angles

Helpppp pls this involves compound interest

Answers

Answer:

[tex]f(x)=9500(1.0625)^x[/tex]

Step-by-step explanation:

Formula for compound interest / exponential functions:

[tex]f(x)=a(b)^x[/tex]

a represents the initial value, b represents the multiplier, and x is the duration / inputs.

In this case, 9,500 is the amount invested, so that's the initial value. The factor here is 6.25% which turned into a decimal is 0.625, but we have to add 1 to that since we have to include the original 100% from when we invested the $9,500. Lastly, x is the number of years, so that remains the same as the formula.

#LearnWithBrainly

There are 36 carpenters in a crew. On a certain day, 29 were present. What percent were at work? (Round your answer to the nearest hundreth - 2 decimal places.)

Answers

Answer:

80.56%

Step-by-step explanation:

divide 36 by 29 and you get 0.8055555555. Change that into a percent to get 80.56%

The value of a computer is given by the expression 2000+(-200t) where t is the time in years.

Answers

If it was one year it would be 2200 and you just keep adding 200 for each year.

HELP
and hurry please
(picture)

Answers

Figure J on each row is correct.

How would the following triangle be classified

Answers

Answer:

C i think... sorry if im wrong

Step-by-step explanation:

Am i right please help asap

Answers

Answer:

yea i think

Step-by-step explanation:

area of a triangle = (hb)/2

19x14 = 266

266/2 = 133

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