A teacher orders homework books for her class of 30 students.
The total value of the order is $135.
Two more students join her class, so she orders two extra books.
What is the total value of the order now? $

Answers

Answer 1
Total value: $144
Explanation: each book cost $4.50
Answer 2

Answer:

The total value of the order now is $142.

Step-by-step explanation:

assuming all books are at the same price

135 ÷30=4.5

2x4.5=7

135+7=142


Related Questions

Solve for x: x/5 - 6 > 19
1. x =__
Solve for x: -5y ≤ 85
2. x =__
Solve for x: 26 ≥ -2x + 4
3. x =__

Answers

Answer:

1. x > 125

2. y ≥ 17

3. x ≥ -11

Step-by-step explanation:

a car travels 45 miles and uses 3 gallons of gas. what is the unit rate for miles per gallon. HELP

Answers

Answer:

15 miles per gallon

Step-by-step explanation:

If a car travels 45 miles and uses 3 gallons of gas than to find how many miles can be traveled using 1 gallon, you do 45/3, miles/gallons to get 15 miles/1 gallon.

Hope this helps,

-Shaylee

15 miles per gallon hope this helps

I would love help thanks!

Answers

B. 5 is your answer

The price of an item was reduced 25% to $30. What was the original price of the item?
thank you!

Answers

40$ djdjhdhdjdjdjdjdjs
$40

I don’t really have an explanation just an answer but to check 25%=1/4. 1/4 of 40 is 10, so subtract 10 from 40 and you get the new reduced price, 30.

15 POINTS AND BRAINLIEST IF YOU ANSWER IN 5 MINS
The two triangles below are similar. Which pair are corresponding sides?

Triangle L M N. Side L M is 7, M N is 5, L N is 4. Triangle P Q R. Side P Q is 8.8, Q R is 11, R P is 15.4.The two triangles below are similar. Which pair are corresponding sides?

A) LN and MN
B) MN and RQ
C) LM and QR
D) LM and PQ

Answers

B I think since they are both the middle numbers

The pair of corresponding sides of triangles are,

⇒ MN and RQ

Option B is true.

What is mean by Triangle?

A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.

Given that;

Triangle LMN,

Side LM is 7, MN is 5, and LN is 4.

And, Triangle PQR,

Side PQ is 8.8, QR is 11, RP is 15.4.

Here, Two triangles are similar.

Hence, The pair of corresponding sides of triangles are,

⇒ MN and RQ

Option B is true.

Learn more about the triangle visit;

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Could someone help? I will give brainliest!!

Answers

Answer:

52 square units

Step-by-step explanation:

Answer:

80

Step-by-step explanation:

Pls help me
The diameter of a circle is 12 cm. Find its area in terms of \piπ.
PLS FOLLOW THE RULES

TROLL FOR POINTS= REPORT

FIRST AND CORRECT ANSWER= BRAINLIEST

( NO LINKS ) at all
#2

Answers

Answer:

113.1

Step-by-step explanation:

The answer is 36pi because the formula is pi r squared

Draw a number line and mark on it, if possible, all described points: Numbers that are larger than 2 and smaller than 5.

Answers

Answer:

Therefore, all the numbers defined so far are subsets of the set of real numbers. ... Next, choose any point to represent the number zero; this point is called the ... lengths on both sides of the origin and label each tick mark to define the scale. ... to see that −1 is greater than −5 until we graph each number on a number line.

Step-by-step explanation:

Answer:

Therefore, all the numbers defined so far are subsets of the set of real numbers. ... Next, choose any point to represent the number zero; this point is called the ... lengths on both sides of the origin and label each tick mark to define the scale. ... to see that −1 is greater than −5 until we graph each number on a number line.

Step-by-step explanation:

ANSWER QUICLKY PLEASE!

Answers

Answer:

2/6

Step-by-step explanation:

4/12=x/6

4/12 simplified = 2/6

2/6x2= 4/12

Answer:

2/6

Step-by-step explanation:

12/2=6

4/2=2

Which expression is equivalent to 5(4x + 12) + 3x + 2?

Answers

Answer: 23x + 62

Step-by-step explanation: First multiply 5 and 4x which you should get 20x, then multiply 5 and 12 which is 60 and add it to your expressions which looks like 20x + 60 + 3x + 2. Then your going to add 60 and 2 and get 62, lastly add 20x and 3 together and get 23x, So your new expression should look like 23x + 62

Solve this function
y = 2x + 7

Answers

well i need the x-value for me to solve it

4p - 5 = 19 i need the steps to solve it

Answers

ANSWER:
p=6

STEP BY STEP:
look at the image

The length of side AC in AABC is 5 units.
5
ty
4
3
2.
1
A
B
0
0
Х
5
1
2.
3
4
What is the perimeter of AABC?
A 12 units
B. 13 units
C 15 units
D. 16 units

Answers

b because i reviewed that with my teacher

The solution is, 12units is the perimeter of AABC.

Here, we have,

Perimeter of ∆ABC = AB + BC + AC

Formula: distance= √(x_2-x_1)²+(y_2-y_1)²

Distance between A(1, 1) and B(4,1):

Where,

AB = √(4-1)^2 + ( 1-1)^2

AB = 3 units

Distance between B(4,1) and C(4,5)

Where,

BC = √(4-4)^2 + (5-1)^2

BC = 4 units

and, we have,

AC = 5 units

so, we get,

Perimeter of ∆ABC = 3+4+5

                                    = 12 units

Learn more about perimeter here:

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-Jamek made rice krispies treats to share with his friends, he gave 2/7 to Josue, 1⁄6 to
Chris and 1⁄2 to Vanessa. How much was left for Jamek?

Answers

1/8                                     ngthbg vtvt4crvg ecv ercfg bg bn

Answer:I might be wrong but I think it’s 1/8 sorry if wrong probably is

Step-by-step explanation:

yo i need a high schoolers help on this math!

Answers

Answer

I am not a highschooler, but I know the answer.

Its the first one (left side), and the last one (right side)

Step-by-step explanation:

Hope that helps. sorry if this answer was too late, I just saw this question pop up for me to answer.

Please help!

The price of an item was reduced 25% to $30. What was the original price of the item?
thank you!

Answers

Answer:

Step-by-step explanation:

hi how r u btw it is 750

CAN I HAVE BRAINLIEST PLEASE

1. Simplify the expression and show each step.
6x+1 -(3x-1

2. Which expression is equivalent to
(3x-1)-2.75(x+2

3. Matt and his friends paid $30 for 4 sandwiches and 4 bottles of water. Each sandwich cost the same amount. The bottles of water cost $2 each. how much does the sandwich cost

Answers

Answer:

1. 3x + 2

2. 0.25x - 6.5

3. $5.50 per sandwich

Step-by-step explanation:

1.

6x + 1 - (3x - 1)

PEMDAS says solve everything in the parentheses first

There is nothing left to simplify within the parentheses.

Since there's also no exponents, multiplication, or division, let's combine like terms starting from left to right

6x - 3x + 1 + 1

Negative + Negative = Positive, hence why it became 1 + 1

3x + 2

2.

(3x - 1) - 2.75 (x + 2)

PEMDAS says to do multiplication next (since parentheses are fully simplified and there are no exponents)

(3x - 1) - 2.75x - 5.5

Negative + Positive = Negative, hence why it became -5.5

3x - 1 - 2.75x - 5.5

Combine like terms

3x - 2.75x - 1 - 5.5

0.25x - 6.5

3.

Set up an equation:

Variable x = cost of sandwiches

4x + 4(2) = 30

4x + 8 = 30

Subtract 8 from both sides to isolate the variable

4x + 8 - 8 = 30 - 8

4x = 22

Divide both sides by 4

4x ÷ 4 = 22 ÷ 4

x = 5.5

$5.50 per sandwich

Which of the following scatter plots shows the strongest correlation

Answers

Answer:

the first one

Step-by-step explanation:

the reason this is because it is showing a linear graph and when it comes to correlation it has to be linear

The scatter plots shows the strongest correlation in graph A. Therefore, option A is the correct answer.

What is scatter plot?

Scatter plots are used to observe and plot relationships between two numeric variables graphically with the help of dots. The dots in a scatter plot shows the values of individual data points.

A strong positive or negative correlation graph is where the line touches or is very close to every data point, and the line has a positive or negative slope.

From the graph A, we can see the points are closely aligned.

Therefore, option A is the correct answer.

To learn more about the scatter plot visit:

https://brainly.com/question/29231735.

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Cross sections that can be seen when a plane intersects a cone but not when it intersects a pyramid or prism are . please help me

Answers

Answer:

The cross section can be:

1. A circle

2. An ellipse

3. A parabola

4. A hyperbola

Step-by-step explanation:

The answer could be parabola but i’m not sure 100% sure!

PLEASE ANSWER URGENT

Answers

Answer:

13. B

14. 10.4 = x + 2.6

15. 7.8

16. The amount that was already in the pitcher

Step-by-step explanation:

Solve system of equation algebraically
y = 2x - 3
x + y = 18

Answers

Answer:

x = 7

y = 11

Step-by-step explanation:

Given the system;

y = 2x - 3

x + y = 18

1. Approach

The easiest way to solve this system of equations is to solve the second equation for the variable (y). Then add the systems, use algebra to solve for the value of (x), then substitute that value back into one of the original equations to solve for the value of (y). Another name for the method in use is the method of elimination, this is when a [erspm manipulates one of the equations in a system of the equation such that when they add the equations, one of the variables eliminatates. Thus, they can solve for the other variable and the backsolve for the value of the unknown variable.

2. Solve one of the equations for a variable

Manipulate the system such that each equation is solved for the same variable,

x + y = 18

Inverse operations,

x + y = 18

-18        -18

x + y - 18 = 0

   -y         -y

x - 18 = -y

3. Use elimination

Now substitute this back into the original system,

y = 2x - 3

-y = x - 18

Add the systems,

y = 2x - 3

-y = x - 18

_________

0 = 3x - 21

Inverse operations,

0 = 3x - 21

+21       +21

21 = 3x

/3    /3

7 = x

4. Find the value of the unknown variable

Backsovle to find the value of (y),

x + y = 18

Substitute,

7 + y = 18

Inverse operations,

7 + y = 18

-7        -7

y = 11

Answer:

X=3 Y=15

Step-by-step explanation: First you need to use the problem 18/2=x to find the value of x. Now to find the value of y, you need to subtract 3 from 18.  Then you solve

15=2(9)-3 15+3=18

Write the equation of the line in slope-intercept form using y=mx+b​

Answers

Y=-1/3x I believe and hopefully that’s right :) goodluck!

To make 3 cups of rice, Nina needs 5 cups of water. To make 9 cups of rice, she needs 15 cups of water. Write this as a proportion.

Answers

5/3 15/9
Hope it helped
5/3 5/19 i think maybe

In 2002, heavy rains caused drivers to slow down at the Texas Motor Speedway. This resulted in the slowest race ever in the history of the track. The winning car took 52.5 seconds to travel one lap around the track, which is 2,414 meters long.

Calculate What was the speed of the winning car?

Calculate How much time will it take a race car to do a lap if it is traveling at a speed of 90.0 m/s?

Answers

Answer:

45.98m/s, 26.82 seconds

Step-by-step explanation:

simple math, divide the length of the track by the time or speed.

________________\___

50 POINTS AND BRAINLY
(asked again because i forgot something)

Answers

D.113
that whole part is 180 and 180-67 is 113

Answer:

m = 180 - 67 (angles in a straight line are supplementary)

m = 113° [option D]

Cameron is selling boxes of cookies.

His goal is to sell more than 5 boxes.

Which graph shows how many boxes Cameron must sell in order to reach his goal?

Answers

Answer:

The 3rd one I think

Step-by-step explanation:

try it out, good luck

Plzzzzzzzz help meeeeee

Answers

Answer:

1-120 in. 2-16cm 3-27 m

Step-by-step explanation:

Please be mad if im  wrong

Answer:

Number 1 is: 120

Number 2: is 42

Number 3 is:27

Step-by-step explanation:

How to solve number 1 is to multiply 4 times 5 then multiply it by 6 and that is how you get 120

How to solve number 2 Multiply 3 times 2 then you get 6 then you do 6 times 7 and that is how you get 42

How to solve number 3 Multiply 3 times 3 then you get 9 then 9 times 3 equals 27

That is how you solve hope this help :)

It would be great if you gave brainlist

Which line plot displays a data set with an outlier? An untitled line plot from 10 to 21. The plot displays the following values as dots above the corresponding value on the number line. One dot at 11. Three dots at 13. Two dots at 14. Three dots at 15. One dot at 16. Three dots at 17. One dot at 18. One dot at 20. An untitled line plot from 3 to 14. The plot displays the following values as dots above the corresponding value on the number line. One dot at 4. Two dots at 5. Five dots at 6. Two dots at 7. Two dots at 8. Two dots at 9. One dot at 10. One dot at 11. Two dots at 12. One dot at 13. An untitled line plot from 3 to 14. The plot displays the following values as dots above the corresponding value on the number line. One dot at 4. Two dots at 5. Three dots at 6. Two dots at 7. One dot at 8. Three dots at 10. One dot at 11. One dot at 13. An untitled line plot from 2 to 14. The plot displays the following values as dots above the corresponding value on the number line. Four dots at 3. One dot at 4. Two dots at 5. Five dots at 6. Two dots at 7. One dot at 8. One dot at 13.

Answers

Answer:

Is there a picture because I don’t know what you need help with you typed a lot of words but not a picture

Step-by-step explanation:

Answer: ok this is going to be hard to explain without the picture but, here you go  

    (im talking about the numbers below the number line and the circles above it to find the choice that matches to a b c or d)

2: 0 circles 3: 4 circles 4: 1 circle 5: 2 circles 6: 5 circles 7: 2 circles 8: 1 circle 9:  0 circles 10: 0 circles 11: 0 circles 12: 0 circles 13: 1 circle and last but not least 14: 0 circles. Find the answer on your quiz that matches what I just said.  

           

Step-by-step explanation: I did the quiz and saw the correct answer so just find the one that matches what I just said then your good. Have a good day.

Step-by-step explanation:

Your class has adopted two equal sections of a highway to keep clean. The combined length is 6/7 of a mile. How long is each section?

A.) 1/7 mile

B.) 3/7 mile

C.) 1/6 mile

D.) 9/11 mile

Answers

B hope this helps make me brainlyest pls

What is the absolute value of 19.8?

Answers

Answer:

19 4/5

Step-by-step explanation:

Answer:

19.8

Step-by-step explanation:

if the number inside the abs value bracket is positive, it will be the same number, or it will be the positive form

if its negative, it will turn positive

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