Mathematics Middle School

Write an equation to find the number of students in Mr. Boggs' homeroom if the total number of students is 90.
Teacher: Number of students
Mr. Boggs b
Mr. Hamilton 15(b+2)
Ms. Simpson 15
Mrs. Walton 2b-9

Answers

Answer 1

Answer:

15(b+2) + 15 + 2b-9 +b = 90

Step-by-step explanation:

Essentially you add up all of the values and make it equal to 90, then solve for b

15(b+2) + 15 + 2b-9 +b = 90

15b + 30 + 15 + 2b - 9 + b = 90  

18b + 30 + 15 - 9 = 90

18b + 36 = 90

18b = 54

b=3

Related Questions

the 17 students on the math team want to raise $483.62 to buy practice books. they have already raised 218.25. if each student raises the same amount.How much more money must each student raise.

Answers

Answer: the answer would be 29

Step-by-step explanation

bc first you divide then youmutiple i also checked my work so i know its correct

WOULD YOU PLZ BRAINLIEST PLZ

The answer is $15.61

Explanation: Subtract $218.25 from $483.62 to find out how much money they have left to raise
483.62-218.25=$265.37
Then divide by the number of students so find out how much each needs to raise
265.37/17=$15.61
To check simply multiply 15.61 by 265.37

Amira needs 24 and StartFraction 3 over 10 EndFraction feet of fencing material to make a fence for her small garden. Which number represents the additive inverse of this number?

Answers

Answer: -24 3/10

Step-by-step explanation: We have been given that Amira needs  feet of fencing material to make a fence for her small garden. We are asked to find the additive inverse of our given number.

We know that additive inverse of a number is that number, which we add to a number to create the sum of zero.

Answer

-24 3/10

Step by step

keli wants to sew trim around the sleeves and hem of a dance costume. she needs a piece of trim that is 8 1/8 inches long for the sleeves and a piece that is 40 5/8 inches long for the hem. if the package contains 5 feet of trim, how much trim will be left after making the costume

Answers

Answer:

1 15/16 ft

Step-by-step explanation:

40 5/8 + 8 1/8 = 48 6/8

There are 12 inches in a foot.

48/12 = 4

6/8 inch divided by 12 is 1/16 ft

Bhwjwjwjwjjwjwjwjwjwkwkkw

Add. −5+(−2)=
Pls help

Answers

Answer: -7

Step-by-step explanation: minus and a plus makes a minus, then, add you ad the -5 and -2 which equals -7

the answer is -7, i used a calculator called desmos and it tells you the answer!

Angela wants to purchase carpeting for her living room. The dimensions of her living room are 15 feet by 18 feet. If carpeting is sold by the square yard, determine how many square yards of carpeting she must purchase.

Answers

Answer: 15 square yards of carpeting.

Hope this helps!

Pretty sure i'm wrong on this one but I can't figure it out either.

Sorry if I wasted your time.

Angela must purchase 29.7 square yards of carpeting.

How to Convert Square Feet to Square yards?

Multiply the area by the conversion ratio to convert a square foot measurement to a square yard measurement. Because one square foot equals 0.11 square yards, you may use the following easy formula to convert:

square inches = square feet × 0.11

The area in square inches is equal to the square feet multiplied by 0.11.

The dimensions of her living room are 15 feet by 18 feet.

The area in square feet is :

15 × 18 = 270 sq ft

Now, the area in square yards is :

270 × 0.11 = 29.7 sq yds

Thus, she must purchase 29.7 square yards of carpeting.

To learn more about the conversions click here:

https://brainly.com/question/13880577

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Convert 19:51 to 12 hour time.

Answers

The answer is 7:51 pm in 12 hour time.

the answer is 7:51 pm

Simplify the expression below. 2−432

Answers

Answer:

-430.

Step-by-step explanation:

2 - 432= -430

the answer is 430 :)

A rectangular cardboard has dimensions as shown. The length of the cardboard can be found by dividing its area by its width. What is the length of the cardboard in inches? I appreciate all help! :)

Answers

Answer:

8.16666667 square inches

Step-by-step explanation:

36.75/4.5=l

length=8.16666667

Answer:

8 1/6

Step-by-step explanation:

36 3/4 divided by 4 1/2 = 8 1/6

help please and tyyy

Answers

Answer:

multiply each number together

How you get your answer is multiply all the numbers together hope this helps:)

ILL GIVE BRAINLIEST!! PLEASE EXPLAIN!
I don't understand how an equation will help me get the slope of f(x).
I need an explanation of how an equation(I mean like y = mx + b or something like that) would give me the slope! Please explain how!!

Answers

Answer:

You can see the line

Step-by-step explanation:

I know this isn't a good eplanation, but when you graph rise over run on the graph, you can see the line without even drawing it, then you get the slope, via the line, sorry I can't explain better.

If you plot it on a number line you can see a line form!!

How to simplify-18 < 9x

Answers

2/1 is the simplified fraction for 18/9.

Answer:

-2 > x

Step-by-step explanation:

-18 < 9x ---> divide by 9 on each side-----> -2 > x

Help me with this it’s really important

Answers

Answer

A = 35 degeres and B = - 12

Step-by-step explanation:

For the first one: 47
For the second one:-12

Which number is not in scientific notation? Question 15 options: 1) 0.2 ⋅ 103 2) 3 ⋅ 1028 3) 1.03 ⋅ 10−2 4) 1.5 ⋅ 10−6

Answers

I believe it’s number 2.
The answer is not 2. its 4

Explain how you can use the algebraic representation to determine the new coordinates of a point.

Answers

Answer:

well basically you cant because on Cordiant planes they aren't algebra

Step-by-step explanation:

hope this helps

A. (-1,3)
B. (3, -1)
C. (-7, 3)
D. (3, -7)

Answers

Answer:

A. (-1,3)

Step-by-step explanation:

you would move the "P" 3 units to the right then you would move 5 units up as explanied.

Answer:

the answer is a.)

Step-by-step explanation:

look at the left side of the rectangle move it to the right 3 units now look at the bottom move it up 5 units. it should be written (x,y)

Solve for p 1/2p - 1/4p = 4

Answers

Answer:

P = 16

Step-by-step explanation:

See image

the answer is p=16.

PLZ HELP BRAINLIEST!!! solve for v


d=m/v

Answers

Answer:

V=M/D

Step-by-step explanation:

D=M/V

multiply both sides by V

divide both sides by d

V=M/D

Please help me!!!!! (25 points)
Right answers only!!!!!!

Answers

the correct answer would be 8

Answer

8

Step-by-step explanation:

Mk so 1 step is 26 - 18 to find the difference then you check the difference of 35 to 43 , 86 to 94 and you should get 8

Part 1) Jessica has $250.78 in her bank account. She buys a bike for $300.36. What is her account balance now? Part 2) Using your answer from part one, if Jessica earns $75.50 the next week from delivering newspapers and deposits it in her account, what will her account balance be then?

Answers

Answer:

Part 1. Jessica will have a negative balance of $49.58.

Part. 2 Jessica will have a positive balance of $25.92

Step-by-step explanation:

Part 1. subtract $300.36 from $250.78.

Part 2. Add $75.50 to $-49.58

Answer:

25.92

Step-by-step explanation:

250.78 - 300.36 = - 49.58 +75.50 = 29.92

Sara and Sam are each working on a science project in which they need to research the individual masses of the nine planets (including the dwarf planet Pluto as the ninth planet). Sara completes her data for the planets' masses in kilograms while Sam's data is in milligrams.

Sara:

Planet Mass (in kilograms)
Jupiter 1.989 · 10(27)
Saturn 5.685 · 10(26)
Neptune 1.024 · 10(26)
Uranus 8.681 · 10(25)
Earth 5.974 · 10(24)
Venus 4.869 · 10(24)
Mars 6.419 · 10(23)
Mercury 3.302 · 10(23)
Pluto 1.31 · 10(22)
Sam:

Planet Mass (in milligrams)
Jupiter 1.989 · 10(33)
Saturn 5.685 · 10(32)
Neptune 1.024 · 10(32)
Uranus 8.681 · 10(31)
Earth 5.974 · 10(30)
Venus 4.869 · 10(30)
Mars 6.419 · 10(29)
Mercury 3.302 · 10(29)
Pluto 1.31 · 10(28)
Approximate how many times greater Saturn's mass is than Mercury's.

200,000
2,000,000
2,000
20,000
i put exponents in parenthesis

Answers

The answer is 20,000 times greater. I hope this helps!
I think it is c correct me if I am wrong

Simplify the expression. 12(a−4) The simplified expression is

Answers

Answer: 12a -48

Step-by-step explanation: Distribute the 12 to a and -4 to get 12a -48.

Hope this helps!

Answer:

12a−48

Step-by-step explanation:

12(a−4)

=(12)(a+−4)

=(12)(a)+(12)(−4)

=12a−48

Mark Brainliest?

Robin bought a bunch of packages of gum at the gas station 8 1/7 of a package each week. How Much would she have eaten in 4 weeks.?

Answers

32 4/7
Multiply 8 1/7 by4 = 32 4/7
About 33. You just multiply 8 1/7 x 4 = 32.57 which would be rounded to 33.

Decide if each equation is true or false.

7⋅8=56
-7⋅8=56
-7⋅-8=-56
-7⋅-8=56
3.5⋅12=42
-3.5⋅-12=-42
-3.5⋅-12=42
-12⋅72=42

Answers

The third and fifth ones are false. Two negative numbers in the same equation make a positive not a negative
True,false,false,true,true,false,true,false.

Organic Whole Wheat Flour Sells in bags Weighing 2.915 Kg A. How much flour is this when rounded to the nearest tenth B. How much flour is this when rounded to the nearest tenth Explain your thinking

Answers

Answer:

2.9 kg

Step-by-step explanation:

If you round 2.915 to the nearest tenth, it would be 2.9. this is because the number to the right of the 9 (1) is below 5.

The amount of flour after rounded to the nearest tenth will be 2.91 kg.

What is rounding off?

Rounding numbers refers to changing a number's digits such that it approximates a value. The provided number is more simply represented by this value. For instance, 700,000 rather than 698,869 could be used to express a town's population.

Given that;

Organic Whole Wheat Flour Sells in bags Weighing 2.915 Kg.

Now,

Since, Organic Whole Wheat Flour Sells in bags Weighing 2.915 Kg.

We know that;

When we round to the nearest tenth we see the right digit of tenth place if it is less than 5 then write same as number but if the number is greater than 5 then add one on the tenth place number.

Hence,

The amount of flour after rounded to the nearest tenth = 2.9

Because,  1 < 5

Thus, The amount of flour after rounded to the nearest tenth = 2.9 kg

Learn more about the rounding number visit:

https://brainly.com/question/1620496

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can someone help me with this please?

Answers

Answer:

Big triangle= 4*1.5=6

Small Triangle= 7.5/1.5=5

Ratio=7.5/5 or 1.5

Step-by-step explanation:

[tex]\frac{7}{10.5}[/tex]=[tex]\frac{x}{7.5}[/tex]

cross multiply

10.5x=52.5

divide both sides by 10.5

x=5

7.5/5= ratio

Rae was estimating the difference between two positive numbers x and y (where x > y). First she rounded x up by a small amount. Then she rounded y down by the same amount. Finally, she subtracted the rounded numbers.
Which of the following statements is correct?
Question options:

Her estimate is larger than x − y.


Her estimate is smaller than x − y.


Her estimate equals x − y.


Her estimate equals y − x.


Her estimate is 0.

Answers

Answer: Her estimate is larger than x-y

Step-by-step explanation:

another challenge
[tex]6 \times 2y \div 3[/tex]
​

Answers

Answer:

2x²y

Step-by-step explanation:

Find the midpoint of the line segment with end coordinates of: (2,0)and (8,8)

Answers

Answer:

(5 , 4)

Step-by-step explanation:

Midpoint formula:

"Add both "x" coordinates, divide by 2. Add both "y" coordinates, divide by 2."

The answer is ( 1,5)

Try It for Example 1: In the next several games, the pitcher threw a total of 384 pitches and used a fastball 240 times. What decimal should Juanita use to update her report?

Answers

The answer is 0.625!

Find the quotient 288/16 which correct
A:13 R 20
B:14 R 4
C:103 R 20
D:104 R 4

Answers

Answer:

the answer is C

Step-by-step explanation:

It should be 18 but I’m not sure I don’t see that option for the answer choices you provided
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