All categories

4 years ago

I will give BRAINLIEST to whoever is correct.

Mathematics

1 answer:

maw [93]4 years ago

8 0

Remember, you can do anything to an equation as long as you do it to both sides

we hates fractions
times both sides by 3
(we could have added 1/3b to both sides but I'm lazy)

4b+6=12-b
add b to both sides
5b+6=12
minus 6 both sides
5b=6
divide both sides by 5
$b=\frac{6}{5}$

You might be interested in

Question 1

Airida [17]

Answer:

a) There are Total 25 Question on the test.

Each question is worth 4 points.

b) Your friend answered 19 questions correctly.

Step-by-step explanation:

Given:

Question answered =24

Percent earn = 96%

Total point test = 100

We will first solve for part a.

We need to find Total Question on the test and Points worth each question.

Now We know that percent earn is equal to Question answered divided by Total Question on test and ten multiplied by 100.

Framing in equation form we get;

$Percent\ earn = \frac{\textrm{Question Answered}}{\textrm{Total question on test}}\times 100\\ \\\textrm{Total question on test} = \frac{\textrm{Question Answered}}{\textrm{Perecent earned}}\times 100$

Substituting the given values we get;

Total question on test = $\frac{24}{96}\times 100 =25$

Hence There are Total 25 Question on the test.

Now we will find each question worth points.

each question worth points can calculated by dividing Total Point test with total number of question on the test.

Framing the equation we get;

each question worth points = $\frac{100}{25} = 4\ points$

Hence Each question is worth 4 points.

Now Solving for part b.

Given:

Percent earn by friend = 76%

we need to find number of question answered correctly.

question answered correctly = $\frac{\textrm{Percent earned by friend}\times \textrm{Total Number of question}} {100}$

Substituting the values we get;

question answered correctly = $\frac{76\times 25}{100} = 19$

Hence Your friend answered 19 questions correctly.

7 0

4 years ago

Remember: Use ALL numbers below or above

DanielleElmas [232]

Answer:

upper:65 lower:44

Step-by-step explanation:

6 0

3 years ago

The lengths of the sides of a rectangle are consecutive prime numbers. The area of the rectangle is represented by a three-digit

PIT_PIT [208]

Answer:

Perimeter = 72

Step-by-step explanation:

<u>Mathematics Puzzle</u>

The area of a rectangle is the product of the base and the height

A=b.h

We know the base and the height are two consecutive prime numbers, not much of useful information so far.

We also know the area is composed only of the two smallest prime digits. Those digits are 2 and 3. If the number is reversed and it's not changed, then we only have two possible values for the area: 232 and 323.

We only need to find two consecutive prime numbers which product is one of the above. The number 232 has no prime factors: 232 = 8*29.

The number 323 is the product of 17 and 19, two consecutive prime numbers, thus the dimensions of the rectangle are 17 and 19.

The perimeter of that rectangle is 2*17+2*19= 72

8 0

3 years ago

Read 2 more answers

If a+b+c/3 = a+b/2 then c=?

Brut [27]

In this case, c = (a + b)/2.

In order to solve this, set up the equation and solve by cross multiplying.

a+b+c/3 = a+b/2 ----> Cross multiply.

3(a + b) = 2(a + b + c)

3a + 3b = 2a + 2b + 2c ----> Subtract 2a from both sides

a + 3b = 2b + 2c -----> Subtract 2b from both sides

a + b = 2c -----> Divide both sides by 2

(a + b)/2 = c

5 0

3 years ago

Two equivalent fractions for 37 over 50

stiks02 [169]

Answer:

37/50=74/100

Step-by-step explanation:

8 0

4 years ago