15 points!!!

What is the value of b? ​ 0.4 (3b + 10) = 19 ​

Enter your answer in the box.

Answers

Answer 1
The value of b = 12.5.

In order to get this answer, we must:
First, simplify both sides of the equation.
0.4(3b + 10) = 19
(0.4)(3b) + (0.4)(10) = 19 (Distribute)
1.2b + 4 = 19
Next, we must subtract 4 from both sides.
1.2b + 4 - 4 = 19 - 4
1.2b = 15
Last, we must divide both sides by 1.2.
1.2b/1.2 = 15/1.2
Answer: b = 12.5

I hope this helps! :>
Answer 2

0.4(3b +10) = 19

1.2b + 4 = 19

1.2b = 15

b = 15 / 1.2

b = 12.5


Related Questions

Which expression complestes this equation? 36/4-2x3=

Answers

Hey there!

36 ÷ 4 -2 × 3 = ?

36 / 4 = 9

9 - 2 × 3

2 × 3 = 6

9 - 6 = 3

Your answer would be: 3

Good luck on your assignment and enjoy your day!

~MeIsKaitlyn:)

How can you round 25.691 to the nearest place

Answers

What place does this number need to be rounded to?

Emily spent a total of 38.04 on four CDs if each CD cost the same amount what is a reasonable amount for each CD explain why your answer is reasonable

Answers

divide 38.04 by 4 first step answer is 9.915
second explain  I'm not sure but I'm a fifth grader so this is a maybe hope this help

To find the cost of one CD, we divide 38.04 by 4

38.04 ÷ 4 = 9.51

The answer is reasonable because it's an accurate answer.

The mass of Earth is approximately 5.9 x 1024 kg and the mass of Venus is approximately 4.9 x 1025 kg. What is their total combined mass expressed in scientific notation? Show your work. DID I GET THE ANSWER RIGHT? IF NOT EXPLAIN HOW TO FIND THE ANSWER!! AND THE WORK!!

WORK:
5.9 x 4.9 = 28.91

25-24= 1

ANSWER:
28.91 x 10^1

Answers

I'm not sure if that's the correct method of finding that (it could be, I was just never shown that kind of method). What I did was multiply everything out, that way you have two numbers vs two equations. Then add those two numbers and turn that into scientific notation.

What is the value of the expression All of 3.6 multiplied by 10 to the power 8 over all of 1.2 multiplied by 10 to the power 3?
a 2.4 × 10^5
b 3.0 × 10^11
c 3.0 × 10^5
d 2.4 × 10^11

Answers

you divide 3.6 by 1.2 as you normally would and then subtract the exponents to get c. 3.0 x 10^5

Answer:

Your answer would be 3.0 X 10^5

Step-by-step explanation:

3.6 X 10^8 over 1.2 X 10^3 would give you 300000 which we put in scientific notation which we move the decimal 5 places to the left. Then we get 3.0 X 10^5

Hope this helps! :-)

Find the​ mean, variance, and standard deviation of the binomial distribution with the given values of n and p.
n=129
p=0.79
The​ mean is ______
. ​(Round to the nearest tenth as​ needed.)
The​ variance,
σ^2 is ______
​(Round to the nearest tenth as​ needed.)
The standard​ deviation, ______

Answers

The Binomial distribution has specific formulas for mean, variance, and standard deviation:

mean=n*p
variance=n*p*(1-p)
std. deviation=sqrt(variance)

Triangle JKL is isosceles. The measure of angle J is 72° and the measure of angle K is 36°. Which statement describes angle L?

Answers

This can have two scenarios: Angle J is the vertex and angle K is one of the base angles, or angle K is the vertex and angle J is one of the base angles. We can check this easily by seeing if they add up to 180.

Checking if the base angle is 72, we see that it fits, because 36+2(72)=180. Thus, the two base angles are angles J and L. Angle L is 72°.

Hope this helped!

Answer:

b.) Angle L is a base angle and measures 72°.

Step-by-step explanation:

what is 8 divided by 6/7

Answers

9 1/3
Hope this helps! =D
Your answer would be 28/7 
hope this helps !

write each as a numerical expression. subtract the product of 5 and 8 from 50

Answers

50 - (5 x 8)

50 - (40) = 10

hope this helps

a garden hose faucet is able to fill a gallon container in 20 seconds. A homeowner accidentally left his hose on for a full day. How many gallons per day can a hose be release?

Answers

The hose can release 72 gallons of water in 24 hours

Answer:

The answer is 4320 gallons.

Step-by-step explanation:

A garden hose faucet is able to fill a gallon container in 20 seconds.

A homeowner accidentally left his hose on for a full day.

In 24 hours, there are = 86400 seconds

The number of gallons per day can a hose be release = [tex]\frac{86400}{20}=4320[/tex] gallons

Hence, the answer is 4320 gallons.

Slope for (6,-10) (-15,15)

Answers

ΔX =-21

ΔY =25

(-21,25)
Y2-Y1/X2-X1

15-6/-15-(-10) or +10

9/-5. Or. -1 4/5 =Slope

Yolanda is buying supplies for school.She buys n packages of pencils at 1.40 per package and m pads of paper at 1.20 each.what does each term in the expression 1.4n+1.2m represent? What does the entire expression represent

Answers

1.4n + 1.2m

1.4n.....the n represents the number of packs of pencils bought.....and each pack of pencils cost 1.4 (which is the same as 1.40)

1.2m...the m represents the number of pads of paper bought...and each pad of paper cost 1.2 (which is the same as 1.20)

the entire expression represents the total cost spent on buying n packs of pencils and m pads of paper

Find the amount of sales tax (T) paid on an item selling for a price (p) of $170 using the formula T=00.4p

Answers

sales tax is .4/T. price is p/170

.4×170= $68

A researcher wished to gauge public opinion on gun-control. He randomly selected 1000 people from registered voters and asked them the following question: “ Do you believe that gun control laws which restrict the ability of Americans to protect their families should be eliminated?” Identify the abuse of statistics and identify ways the researchers methods could be improved.

Answers

The question is clearly one sided - the researcher clearly states that it prevents the ability for families to protect themselves, but doesn't state any negatives to guns in the question.

Answer:

Its a Loaded Question

Step-by-step explanation:

They need to re-word the question. For example, Do you believe gun control laws should eliminated?

What's the answer to this question ? I've been really confused for the past 20 minutes

Answers

sqrt(570025)= 755 feet

 one side is 755 feet


 the hint told you how to solve it

Solve for p.

3p − 4 = 11


p = 7

p = -5

p = −3

p = 5

Answers

P=5 because the parenthesis mean multiplication, and when you multiply 3 times 5, you receive a product of 15. Then, 15-4 is 11, meaning that p=5.
p= 5 because 3 x 5=15     15 - 4=11

April can run at a rate that is 2 miles per hour faster then Donna's rate. one day, april gave donna a 25 minute head start on a run. if April passes Donna five miles from the starting point, how fast is each Runner running?

Answers

Let us say that:

s = speed of Donna

s + 2 = speed of April

 

Then we are also given that:

t + (25/60) = time of Donna

t = time of April

 

The distance taken by the two should be equal. We know that distance is the product of speed and time, so:

s * (t + 25/60) = (s + 2) t

 

We also know that:

(s + 2) * t = 5

s = 5/t – 2

 

So that:

(5/t – 2) * (t + 25/60) = 5

5 + 125/60t – 2t – 50/60 = 5

25/12t – 2t – 5/6 = 0

Multiply everything by t:

- 2t^2 – 5/6 t + 25/12 = 0

t^2 + 5/12 t = 25/24

Completing the square:

(t + 5/24)^2 = 25/24 + (5/24)^2

t + 5/24 = ± 1.04

t = -1.25 h, 0.83 h

 

Since time cannot be negative, therefore t = 0.83 h

 

So,

(s + 2) * t = 5

s + 2 = 5/0.83 = 6 miles per hour

s = 4 miles per hour

 

Answers:

speed of Donna = 4 miles / hr

speed of April = 6 miles / hr

Combine 4c - c in like terms

Answers

If no mod deletes this, you get 3c

How is twelve divided by fifteen equal to eight.

Answers

It isn't at all!

When dividing numbers, the easiest way is to imagine the values as a fraction, and then reduce that fraction. If it reduces to a core fraction (ones that you should know their decimal value without thinking), then you have your answer.

[tex] \frac{12}{15} = \frac{4}{5} = 0.8 [/tex]

We simplified our fraction by dividing the numerator and denominator by 4, which left us with  [tex] \frac{4}{5} [/tex], which we know is equal to 0.8.

You may be confused thinking that 0.8 is the same as 8. 0.8 is actually a tenth of the value of 8. This makes them very different values.

Below, I have also included a picture to help you memorize your common/core fractions. I recommend learning these as they will help you get through all sorts of math, from Geometry to Calculus!

 

Does anyone get this question plz anybthat does help me idk what to do thank you

Answers

3x+8+4x+10=8x
7x+18=8x
18=x

Plug the value of x in
BC= 8(18)
BC= 144

Final answer: 144

In the United States 13 out of every 20 cans are recycled what percent of cans are recycled show work

Answers

The first  step is to divide 13 by 20. You will come out to 0.65. It will be 65%.


A 5- digit number has digits 0,5,7,9, and 0. To the nearest thousand, it rounds to 80,00 What is the number?

Answers

The answer to that question is 79,500.

You are ordering concert tickets. You pay a processing fee of $5, plus $18 per ticket. How many tickets can you buy for $100?

Answers

If you use the formula, 18x + 5 = 100 and solve from there you should get about 5.27 which means you can get 5 tickets and you'll have money left over.

After accounting for the $5 processing fee, you can purchase approximately 5 concert tickets with $100, as each ticket cost $18.

To determine how many concert tickets you can buy for $100, we need to account for both the fixed processing fee and the variable cost per ticket. The processing fee is a one-time payment, and the cost per ticket is multiplied by the number of tickets you want to purchase. We can set up the following equation where T represents the number of tickets:

$5 + $18T = $100

First, we subtract the processing fee from the total amount of money available:

$100 - $5 = $95

Now we divide the remaining amount by the cost per ticket:

$95 / $18 = 5.28

Since you cannot buy a fraction of a ticket, you would be able to purchase 5 tickets with $100, with a remaining balance of $5 (since 5 tickets cost $90, plus the $5 processing fee).

PLEASE HELP!!!! I don't understand!

1. -1/2 + 1/3
A. -1/6
B. -1/3
C. 2/3
D. 1/6

2. -3 1/5 + (-6 1/2)
A. -3 2/7
B. - 3 7/10
C. -9 2/7
D. -9 7/10

3. 5/8 - (-2/8)
A. -3/8
B. -7/8
C. 3/8
D. 7/8

4. -9/10 - 2/5
A. -1 3/10
B. -1 1/10
C. -7/10
D. -5/10

5. 6 3/5 - (-2 1/5)
A. -8 2/5
B. -4 2/5
C. 4 2/5
D. 8 4/5

Answers

I think the answer is D

In a bag of oranges, the ratio of the good ones to the bad ones is 5:4. If the number of bad ones in the bag is 36, how many oranges are there altogether?

Answers

5x - good ones

4x - bad ones

[tex] 4x=36\\ x=9\\\\ 5x=5\cdot9=45\\\\ 45+36=81 [/tex]

81

the function s(v)=3√v describes the side length, in units, of a cube with a volume of V cubic units. jason wants to build a cube with a minimum of 64 cubic centimeters

what is a reasonable range for s, the side length, in centimeters, of Jason's cube?

a. s > 0
b. s >_4
c. s >_ 8
d. s>_ 16

Answers

s(v)=∛v
if v = 64 then
s(v) ∛64 = 4

answer
b. s >= 4

Answer:

Step-by-step explanation:

alright lets get started.

The side of cube is given by the function

[tex]s(v)=\sqrt[3]{v}[/tex]

If, Jason wants to build a cube with the minimum volume 64 cubic centimeters.

Plugging the value of volume in above function

[tex]s=\sqrt[3]{64}[/tex]

Taking the cubic root of 64

[tex]s=4[/tex]      :    

So, side s should be atleast or more than 4 to have the volume as 64,

[tex]s\geq4[/tex]   :   answer    option b

Hope it will help. :)

PLEASE HELP FAST!!!!!!!!!!!!!!!!!


Tomas asked 15 students whether summer break should be longer. He used his calculator ti divide the number of students who said yes by the total number if students. His calculator showed the result as 0.9333......

a. Write this number as a fraction.


b.How many students said that summer break should be longer


Answers

a would be what makes sense

The number as a fraction will be 14 / 15. Then the number of students who said that summer break should be longer will be 14 out of 15.

What is Algebra?

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

Tomas asked 15 students whether summer break should be longer. He used his calculator to divide the number of students who said yes by the total number of students. His calculator showed the result as 0.9333......

Then the result can be written in the form of fractions that will be

0.9333...... = 14 / 15

Then the number of students who said that summer break should be longer will be 14 out of 15.

More about the Algebra link is given below.

https://brainly.com/question/953809

#SPJ6

Number 123,456,789 what digit has the greatest value? what is it value

Answers

1 has the greatest value, it's worth 100,000,000 or 100 million.

In the number 123,456,789, the digit with the greatest value is 1.

The explanation is as given:

Each digit contributes value based on its position in the number. The leftmost digit holds the highest place value.

In this case, the digit 1 is in the hundreds of millions place.

1 (in the hundreds of millions place) = 1 x 100,000,000 = 100,000,000

Although the digit 9 appears at the end, it's in the ones place, which has the lowest weight (9 x 1 = 9).

Therefore, the digit with the greatest value is 1, and its value is 100,000,000.

write an expression of the product of 6 and Q

Answers

6q= (7q+2q)\3 x 2
6q= 9q\3 x 2
6q= 3q x 2
6q=6q

Shaquira is baking cookies to put in packages for a fundraiser. Shaquille has made 86 chocolate chip cookies and 42 sugar cookies. Shaquira wants to create identical packages of cookies to sell, and she must use all the cookies. What is the greatest number of identical packages Shaquira can make?

Answers

Answer:

The greatest number of identical packages Shaquira can make is 21.

Explanation:

To find the greatest number of identical packages Shaquira can make, we need to determine the greatest common divisor (GCD) of the number of chocolate chip cookies and the number of sugar cookies. The GCD represents the largest number of identical packages that can be made.

Given:

- Chocolate chip cookies: 86

- Sugar cookies: 42

We can find the GCD using the Euclidean algorithm or by listing the factors of each number and identifying the largest common factor.

By listing the factors:

- Factors of 86: 1, 2, 43, 86

- Factors of 42: 1, 2, 3, 6, 7, 14, 21, 42

The common factors are 1 and 2. The greatest common factor (GCD) is 2.

So, Shaquira can make the greatest number of identical packages by dividing both the number of chocolate chip cookies and the number of sugar cookies by the GCD:

[tex]\( \frac{86}{2} = 43 \)[/tex] packages from chocolate chip cookies

[tex]\( \frac{42}{2} = 21 \)[/tex] packages from sugar cookies

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