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3 years ago

Six times a number, increased by 3 is is 27. find the number

Mathematics

1 answer:

Mekhanik [1.2K]3 years ago

6 0

Answer : The number is 4.

Step-by-step explanation:

Given : 

six times a number, increased by 3 is is 27.

To Find: 

The number.

Solution : 

Let the number is x

six times a number is 6x

Increased by 3 = 6x+3

According to the given question :

Solving the value x : 

6x+3 =27

6x = 27-3

6x = 24

x = 24/6

x = 4

Hence, the number is 4.

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SIMPLIFY 7x to the power of 2 + 6x + 9x to the power of 2 - 5x

Marizza181 [45]

$7x^2+6x+9x^2-5x=(7x^2+9x^2)+(6x-5x)=16x^2+x$

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3 years ago

Please help and for number 2

prohojiy [21]

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1/2 x 28.3 x 12.8 = 181.12

Answer is #3

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4 years ago

Put the equation in standard form y=-4/5x+2

sp2606 [1]

Answer:

4x +5y = 10

Step-by-step explanation:

Standard form of an equation is Ax +By = C

y=-4/5x+2

Add 4/5 x to each side

4/5 x +y=-4/5x+ 4/5x+2

4/5 x + y = 2

Now we don't have fractions in A ,B or C

So Multiply by 5

5(4/5 x + y) = 2*5

Distribute

4x +5y = 10

3 0

3 years ago

Read 2 more answers

Su has 5 times as many marbles as Bertha. When Su gives Bertha 10 marbles, they have the same amount. How many marbles did they

Dafna11 [192]

Answer:

Part A)

The number of marbles that Su has at the beginning is $25$

The number of marbles that Bertha has at the beginning is $5$

Part B)

The number of marbles that Su has at the end is $15$

The number of marbles that Bertha has at the end is $15$

Step-by-step explanation:

Let

x------> number of marbles that Su has at the beginning

y------> number of marbles that Bertha has at the beginning

we know that

$x=5y$ ----> equation A

$x-10=y+10$ ----> equation B

substitute equation A in equation B

$(5y)-10=y+10$

$4y=20$

$y=5$

Find the value of x

$x=5(5)=25$

Part A) How many marbles did they EACH have at the begining?

The number of marbles that Su has at the beginning is $25$

The number of marbles that Bertha has at the beginning is $5$

Part B) How many did they EACH have at the end?

$x-10=y+10$

$25-10=5+10$

$15=15$

therefore

The number of marbles that Su has at the end is $15$

The number of marbles that Bertha has at the end is $15$

5 0

4 years ago

The state fair charges $14 for

Scrat [10]

Answer:

$s=6r+14$

Step-by-step explanation:

we know that

The linear equation in slope intercept form is equal to

$s=mr+b$

where

m is the slope or unit rate of the linear equation

b is the y-intercept or initial value

In this problem we have

The slope is equal to

$m=\$6\ per\ ride$

The y-intercept is equal to

$b=\$14$

substitute the given values

$s=6r+14$

5 0

4 years ago