Mathematics High School

Two pencils and a ruler cost 98 cents in total. One pencil and 2 rulers cost $1.24 in total. Find the cost of each item.

Answers

Answer 1

Answer:

2.16

Step-by-step explanation:

r = cost of ruler

p = cost of pencil

 

r = 2p

6r + 15p = 2.16

 

Substitute 2p in place of r in 2nd equation and solve for p

 

6(2p) + 15p = 2.16

12p + 15p = 2.16

27p = 2.16

Answer 2
Answer: 2.16
6(2p)+15p=2.16
12p+15p=2.16
27p=2.16

Related Questions

1) 6c + 7 = 8c - 3

2) -8 (4 + 9x) = 7 (-2 - 11x)

Answers

Answer:

c=5,x=18/5 or 3.6

Step-by-step explanation:

George spent 1 ½ hours studying on Monday, and 1 ⅔ hours studying on Tuesday. If he spent ¼ of the total time studying math, what fraction of an hour did George spend studying math?

Answers

I believe the answer is 79 minutes, so you could also say an hour and 19 minutes! Hope this helps! <3

What's the slope of -1,0 and 3,-2

Answers

Answer:

-2/4

Step-by-step explanation:

What's the slope of -1,0 and 3,-2

Answer:

-0.5

Step-by-step explanation:

4 1/5 x 5/14 in its simplest form

Answers

Answer:

1.5 as fraction it is  3/2 in simplest form

Step-by-step explanation:

The simplest form of the expression given is 3/2

What is an expression?

A mathematical statement containing variables, numbers and connected by a mathematical operator is called an expression.

Given that, an expression  [tex]4\frac{1}{5}[/tex]  × [tex]\frac{5}{14}[/tex]

We are asked to simplify them,

[tex]4\frac{1}{5}[/tex]  × [tex]\frac{5}{14}[/tex]

= 21 / 5 × 5 / 14

= 21 / 14

= 3/2

Hence, the simplest form of the expression given is 3/2

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How is (5,9) different than (-5,9)

Answers

Because one is negative and one is positive

Answer:

(5,9) is a reflection of (-5,9). One of the x values are positive while the other is negative.

a medium egg has a mass of 50 grams what is the mass of a 8 medium egg
a 40 l
b 400 g
c 40 g
d 400 kg

Answers

Answer:

400 grams.

Step-by-step explanation:

The mass of one medium egg is 50 grams. To solve for 8 medium eggs. Multiply.

50 * 8 = 400

400 grams.

Explain how to solve the equation
b - 7 = 12

Answers

Answer:

add 7 on both sides. b-7+7=12+7 to eliminate 7. you get b=19. hope this helps.

Solve for c.
-5/8c = 20

A. c = -34

B. c = -32

C. c = 26

D. c = 28

Answers

Answer:

b

Step-by-step explanation:

solve for c by simplifying both sides of the equation then isolate the variable

Maria is reading a book that has 237 pages. She
already read some of it last week. She plans to read 30
pages tomorrow. By then, she will be of the way
through the book. How many pages did Maria read
last week?

Answers

Answer:

49 pages

237/3 = 79.

30+49 = 79

So the answer is B because your are not suppose to do that.

Which function has a domain of all real numbers?

Answers

Answer:

C

Step-by-step explanation:

This is totally wrong lol

Solve for x.

x/8 -1.1= -13.9

Answers

Answer:

x(x-8) + 12 = 0.

Step-by-step explanation:

solve for “x”.

2x = 5

thanks to whoever helps!! :)

Answers

Answer is 2.5 bc u have to divide 5 by 2 then u get ur answer

Answer:

2.5

Step-by-step explanation:

In this equation x is equal to 2.5. I got this answer by dividing both sides of the equation by 2, since we do the opposite operation of how the equation is set up. Have a great day! :)

im not sure of my answer i need help please!!

Answers

Answer:

C. y = -2/3x + 4

Step-by-step explanation:

y = mx + b

y-intercept of positive 4 on the y axis

m is the slope which is down 4 right 6 which reduces to -2/3

Write an equation of the line that passes through the pair of points. (0, 1), (5, 3)​

Answers

Answer:

Step-by-step explanation:

(3 - 1)/(5 - 0)= 2/5

y - 1 = 2/5(x - 0)

y - 1 = 2/5x - 0

y = 2/5x + 1

What is the value of x? Use an informal argument to justify your answer *

Answers

Answer:

68°+47°+ x = 180°

115°+ x = 180°

115°-115°+x = 180°-115°

x = 65°

hope it's helpful ❤❤❤❤

THANK YOU.

80^2 - 45^2 = a^2 - b^2

ans pls in working, thnx in advance

Answers

Answer:

[tex]{a}^{2} - {b}^{2}= {(80)}^{2} -{(45)}^{2} \\(a + b)(a - b) = (80 + 45)(80 - 45) \\ = 125 \times 35 = \boxed{ 4375}✓[/tex]

4375 is the right answer.

what does the a in y=a(1+r)x represent?

Answers

Answer:

The function is of the form y = a(1 − r)t, where 1 − r < 1, so it represents exponential decay. Use the decay factor 1 − r to find the rate of decay. Write an equation. Solve for r.

The "a" in the expression y = a (1+r)ˣ represents the initial amount.

What is the expression?

An expression in math is a sentence with a minimum of two numbers or variables and at least one math operation. This math operation can be addition, subtraction, multiplication, or division.

Given, a exponential expression  y = a (1+r)ˣ

The exponential growth can alternatively be calculated using the formula f(x) = a(1 + r)ˣ, where the function is denoted by the f(x) term. The initial value of your data is represented by the variable. The growth rate is represented by the r variable.

Therefore, the initial amount is been represented by "a" in the given expression.

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How much work does a horse do while moving a wagon 15 meters with a pulling force of 100N?

Answers

1500 Newton’s when finished

Choose the two rectangular prisms that have a volume of 36 cm

Answers

The height=2cm, Length=6m,Width=3cm

how many months give you 27 years​

Answers

Answer:

324 Months

Step-by-step explanation:

Answer:

324 months according to goggle.

One less than five times a number is fewer
than twenty-four.

Answers

Answer:

x < 5

Step-by-step explanation:

[tex]5x - 1 < 24\\5x < 25\\x < 5[/tex]

Answer:

any number under 5

Step-by-step explanation:

5(5) -1 =24

so anything under that would equal fewer than 24

Is this what you're asking?

The triangles are congruent. Find the measure of x.

Answers

Match up the sides for each triangle using the little marks through the sides

1 to 1, 2 to 2 and 3 to 3

When you do this you see that x corresponds to c on the first triangle.

The 3 angles in a triangle = 180.

Find c by subtracting A and B from 180

C = 180- 29-63 = 88

Now x = c so x = 88

The answer is C. 88

PLEASE HELP ASAP! ILL MARK BRAINLEST i feel like i’m missing one

Answers

Answer:

The ans is correct. But I think C is also correct.

Step-by-step explanation:

PLEASE HELP, MARKING BRAINLIST!

Answers

Answer:

2 miles

Step-by-step explanation:

because they completed the loop twice:1x2=2

Answer:

tw0 miles.

Step-by-step explanation:

if its 0ne mile l0ng, and the went around twice, it w0uld be tw0 miles :>

Write and equation for the line graphed below? Use slope-intercept form. ASAP PLSS!

Answers

Answer:

3,5,-5

Step-by-step explanation:

because it on y asix

Complete the statements.

Graph ____has one real root.
Graph ____ has a negative discriminant.
Graph ____has an equation with coefficients

Answers

Is there supposed to be a picture I’m sorry I don’t see it
Graph b has one real root
Graph C has a negative discrimination
Graph A has an equation with coefficients

what is the square root of 3 multiplied by 1/2 in the simplest radical form?

Answers

Answer:

usbqjqnamallqnbajabqjqnqkqlqlqllqqlqoqoqnajajhchhsgavbsujwhwjwjqqbq.

hshsjwhwjwjuwubwbwwuwhquuwqjqjqkqbqv pangit mo potang ina mo bulok wlang silbe wag kana mag ajabajajajqkqjbqiqiq

Solve it pls 4 - 7k = 1 - 6k

Answers

k = 3
4 - 7k + 6k = 1 - 6k +6k
4 - k = 1
4 - k + k = 1 + k
4 = 1 + k
4 - 1 = 1 + k - 1
3 = k
k = 3

PLEASE, PLEASE HELP D:
write the linear equation given :

1. slope = 1/4; y-intercept =7

2. slope = -3; y-intercept = 2/3

3. slope = 2/3; y-intercept = 2/3

4. slope = -2; y-intercept = -1/2

5. slope = -3/4; y-intercept = -3

Answers

Answer:

1. y =1/4x + 7

2.y =-3x + 2/3

3. y =2/3x + 2/3

4.y =-2x - 1/2

5.y =-3/4x -3

Step-by-step explanation:

By using the slope- intercept form of the equation, y=mx + b, where m=slope and b=y-intercept, you can substitute the values of slope and the y-intercepts into the formula y=mx + b

In AUVW, the measure of ZW=90°, VU = 65, UW = 33, and
WV = 56. What ratio represents the tangent of ZU?

Answers

Answer: 56/33

Step-by-step explanation:

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