Mathematics Middle School

evaluate the expression solve for b = 15

19.9 + 2b =

Answers

Answer 1

Answer:

49.9

Step-by-step explanation:

if b is 15 then you multiply 2 and 15 (b) to get 30. then you add 19.9 and 30 to get 49.9

Answer 2
19.9 + 2(15) = 49.9
You just plug in the b value

Related Questions

(Can someone help me with this please.) :D
You go to the movies with five friends. You and one of your friends each buy a ticket and a bag of popcorn.

The rest of your friends buy just one ticket each. The expression represents the situation.

Evaluate the expression when tickets cost $7.25 and a bag of popcorn costs $3.25.

Answers

Answer:

$42.75

Step-by-step explanation:

2 people buy a ticket you and one friend so = $21

Then you have three friends who have not bought anything. we are told that each only buys a ticket so 3(7.25)=21.75

then add the two outcomes 21.75 + 21 and get $42.75

total equation: 5(7.25)+2(3.25)

A certain common formula converts the numbers in Box 1 to the corresponding ones in Box 2. Another formula then converts the numbers in Box 2 to the corresponding ones in Box 3:
IMAGE

If we wanted to convert a number m in Box 1 directly to the corresponding number in Box 3, we could use the formula.

A. 3m + 2
B. 3m x 3
C. 3(m + 2)
D. m + 2 x 3

Answers

the answer would be C.

The formula to convert numbers from box 1 to box 3 is (c) 3(m + 2)

Represent the numbers in box 1 with m.

The numbers in box 2 are three times the numbers in box 1.

So, the formula to convert numbers in box 1 to box 2 can be represented as:

[tex]f(m) =3m[/tex]

The numbers in box 3 are 6 more than the numbers in box 2.

So, the formula to convert numbers in box 2 to box 3 can be represented as:

[tex]g(m) =f(m) + 6[/tex]

Substitute 3m for f(m)

[tex]g(m) =3m + 6[/tex]

Factor out 3

[tex]g(m) =3(m + 2)[/tex]

Hence, the formula to convert numbers from box 1 to box 3 is (c) 3(m + 2)

Read more about sequence and patterns at:

https://brainly.com/question/15590116

Valentina purchased 200 beads for $48 to make necklaces. If she needs to buy 25 more beads , how much will she pay if she is charged the same rate?

Answers

Answer:

$6.00

Step-by-step explanation:

200b=$48

$1=(200/48)*b

$1=(25/6)*b

6*$1=6*(25/6)*b

$6=25b

Answer:

200 ÷48 then you will have to add 25 to 200

Step-by-step explanation:

225

When adding decimals with different signs you ______________.


a. subtract and take the sign of the decimal with the largest absolute value.

b .add the opposite

c. subtract and keep the sign.

d. add and keep the sign.

Answers

The answer is D add and keep the sign

I just need help to understand this strategy can someone please explain how this strategy works?

Answers

Answer:

It is called the dividion strategy. You use boxes to divide a number easier

Step-by-step explanation:

it is called a division strategy

There are 3.76 x 10^22 tardigrades in 1gram of water. How many tardigrades are there in 600 grams of water?

Write your answer in scientific notation. If necessary, round your answer to two decimal places. Show work to support your answer.

Answers

the answer is 2.256 x 10^25
2.256 x 10^25 need more details?

Which statement is true about the value of the expression below. (-2³)‐² Answer choices: it is less than -1. It is between-1 and 0. It is greater than 1. It is between 0 and 1.

Answers

Answer:

it is less than -1

Step-by-step explanation:

Answer:

Step-by-step explanation:

764

This is the last problem, Math was never my best subject ^^´´.
Please And Thank Youu!

Answers

Answer:

15t +45 = 1205 hours

Step-by-step explanation:

Let t represent the number of hours of lessons Audrey can take. Then 15t will be the cost of the lessons. Her total cost will be ...

  15t +45 = 120 . . . an equation

  15t = 75

  t = 5

Audrey can afford 5 hours of lessons.

The correct answer is : T=5

Please help me:( this is hard

Answers

Answer:

I attached the answers to number one and three.

Step-by-step explanation:

I totally forgot how to do this (I learned this two years ago), so I used the graphing calculator on "Desmos". It's very helpful :)

I will get to work on the second one, but it might take me a minute :)

2.) go up 3 from the origin then right 5

GIVING BRAINLIEST how much tens can go in 1,000

Answers

100. 100 times 10 = 1000
the correct answer is 100. 1,000 divided by 10=100.

Choose the correct postulate, theorem, property, or definition that justifies each of the following statements.
Answers will be in the picture
Thanks in Advance :D

Answers

Answer:

Multiplication Property of Equality

Step-by-step explanation:

Search Results

Featured snippet from the web

The Multiplication Property of Equality states that if you multiply both sides of an equation by the same number, the sides remain equal (i.e. equality is preserved).

help! me! with! this!

Answers

Answer:

I’m pretty sure its the 4th answer

Step-by-step explanation:

The answer is the last one z3. I hope this helped :)

Someone help me with this and tell me how you did it

Answers

Answer:

58 seconds

Step-by-step explanation:

27.8 seconds ≈ 28 seconds

30.12 seconds ≈ 30 seconds

Total time taken = 28 + 30 = 58 seconds

58 seconds

Step by Step :
Add 27.8 by 30.12 = 57.92
Round that to 58

A 40-meter length of cable is cut into pieces that measure 1.25 meters each. Into how many pieces is the cable cut?

Answers

Answer:

32

Step-by-step explanation:

40 / 1.25=32

I believe the answer is 32

Answer the following: GCF of 20 & 32 GCF of 45 & 75

Answers

Answer:

GCF OF 20 AND 32: 4

Gcf of 45 and 75: 15

Step-by-step explanation:

GcF of 20 and 32

Factors of 20: 1, 2, 4, 5, 10, 20

Factors of 32: 1, 2, 4, 8, 16, 32

COMMON FACTORS: 1, 2, 4

GCF:4

Gcf of 45 and 75

Factors of 45: 15, 9, 5, 3, 1.

Factors of 75: 25, 15, 5, 3, 1.

CommoN factors: 1, 3, 5, 15

GCF:15

HOPE OT HELPED

Answer:

1. : 4

2. : 15

Step-by-step explanation:

Factors for 20: 1, 2, 4, 5, 10, 20

Factors for 32: 1, 2, 4, 8, 16, 32

Looking at the factors, we can see that the largest factor 20 and 32 have in common is 4. The answer isn't 1 or 2 because we are looking for the greatest common factor. This means we are looking for the largest of the factors which they both share.

Factors of 45: 1 , 3 , 5 , 9 , 15 , and 45.

Factors of 75: 1 , 3 , 5 , 15 , 25 and 75

Looking at these factors, we can see that 15 is the largest factor that 45 and 75 both share. The answer is not 1, 3, or 5 because we are again looking for the GREATEST common factor.

If my answers and explanations helped. Please say thanks! It means a lot to know my work is helping others achieve their academic goals. If you learned something from this, tell me! If you have any further questions, please comment and ask!

Which of the following is equivalent to the equation given below?

3/4x - 2 = 2/3

9x - 2 + 8
9x - 2 + 8

3x - 24 = 2
3x - 24 = 2

9x - 24 = 8
9x - 24 = 8

36x - 24 + 24
36x - 24 + 24

Answers

Arnt they the last 4 since they are exactly the same abs the first is different..
Have you ever thought about using a calculator

plzz help lololololo

Answers

Answer:

The answer is C. 8

Explanation:

If you simplify all of the other answers, they all equal to the same thing, except 8.

 enjoy! :D

the answer is 8
when you simplify it, it simply doesn’t match like the others do

A prime number p is a divisor of 420 and 540. How many possible values of p are there?

Answers

Answer:

3 prime divisors that go into 420 and 540 are-

2,3,5

hope this helps!

Answer: The answer is 3.

Step-by-step explanation:

The only possible prime divisors of 420 and 540 are 2, 3, and 5.

pls help pls help pls help

Answers

Answer:

303 seconds

Step-by-step explanation:

56.6+57.9+57.5+65.3+65.7

=303.0

Rounded to the nearest second

= 303 seconds

303 seconds in total

Helpppppp plz asap tyy

Answers

12. is a :) hope this helps
Your current answer is 12

Could someone pls help meh!?!? Eighth grade honors math is hard lol

Answers

Answer:

?

Step-by-step explanation:

Hi,i have this one question what is [tex]6,482 x 10[/tex]

























sike that was for fun plz reply with a wrong answer

Answers

Answer:

0

Step-by-step explanation:

This is really easy u just gotta READ ;)

(5.81 x [tex]10^{6}[/tex] ) + (4.22 x [tex]10^{7}[/tex] )

Answers

Answer:

10,030,000

Step-by-step explanation:

(5.81 x 10 to the power of 6),first 10 to the power of 6 is 1,000,000,now times 5.81 which is 5,810,000.

10 to the power of 7 is 10,000,000, now times 4.22, which is 4,220,000.

5,810,000 + 4,220,000 = 10,030,000

What TWO angle relationships could be useful to solve for the measure of ∠LPN?

(Choose 2)
Vertical Angles
Supplementary Angles
Complementary Angles

Answers

I think t is supplementary and complementary angles
I think the supplementary angles and complementary angles

i know this has already been answered but im still a little confused 19x+rx=-37x+w

Answers

Answer:

new 10 marks will be why you're giving 5 marks please give 10 marks

Ishi walked a total of 2 1/2 miles on the treadmill a constant rate of 4 miles per hour. Which expression shows how long in minutes ishi walked on the treadmill. Answer choices: 2.5 miles × 4miles/hour × 60minutes/1 hour. 2.5 miles ÷4miles/hour÷60minutes/1hour. 2.5 miles × 4miles/hour ÷60minutes/1hour. 2.5 miles ÷ 4miles/hour × 60minutes/1 hour

Answers

Answer:

Step-by-step explanation:

66643 step by step dm

Answer:

66643 pretty sure

Step-by-step explanation:

Efia draws this scale drawing a two famous landmarks each inch in the drawing represents 400 ft on the actual landmark how much taller the actual Eiffel tower than the action space Needle

Answers

Answer:

x4800 inch

Step-by-step explanation:

Answer:

x4800 pulgadas

Step-by-step explanation:

mary received a $16 discount on a $64 dress. what percent discount did Mary receive?

Answers

Answer:

25%

Step-by-step explanation:

if 64 dollars is the 100% How much is 16 dollars?

(16)(100) / 64 = 25

Roberto hikes 21.48 miles on one weekend. The next weekend he hikes 30 miles. How much less is the distance he hiked on the first weekend than the distance he hiked on the second weekend?

Answers

Answer:8.52 miles less than the second weekend

Step-by-step explanation:

You just subtracts the amount he hiked the first weekend from the second

Answer:

9.52 miles

Step-by-step explanation:

Marcus and Lily want to decorate their classrooms by putting a border across the top of two square walls. Marcus’s wall has an area of 100 square feet, while Lily’s wall has an area of 121 square feet. What are the lengths of their borders? Marcus’s border is feet long. Lily’s border is feet long. HELP MEEE!!!

Answers

The length should be 10 bc area

Answer:

Marcus 10 Lily 11

Step-by-step explanation:

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