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2 years ago

3(5a+2) please help me find the answer

Mathematics

2 answers:

leonid [27]2 years ago

7 0

Answer:

15a+6

Step-by-step explanation:

Using distributive property you multiply 5a times 3 and 2 times three.

ella [17]2 years ago

3 0

Answer:

5 + 2 × 3 is 11 your welcome xatxvdjdndjd

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5-4. Solve each of the following equations for the indicated variable. Use your Equation Mat if it is helpful. Write down each o

balu736 [363]

QUESTION 1

The given equation is :

$2(y - 3) = 4$
We want to solve for y. This means we have to isolate y on one side of the equation while all other constants are also on the other side of the equation,

We first divide both sides by 2 to obtain,

$\frac{2(y - 3)}{2} = \frac{4}{2}$

We cancel out the common factors to get,

$y - 3 = 2$

We now group like terms to get,

$y = 3 + 2$

We simplify to obtain,

$y = 5$

QUESTION 2

The given equation is

$2x + 5y = 10$
We want to solve for x. This means that we need to isolate x on one side of the equation, while all other variables and constant are also on the other side of the equation.

This implies that,

$2x= 10 - 5y$

We now divide through by 2, to obtain,

$\frac{2x}{2} = \frac{10}{2} - \frac{5y}{2}$

This will now give us,

$x = 5 - \frac{5}{2} y$

QUESTION 3

The given equation is
$6x + 3y = 4y + 11$

We want to solve for y. This means that we need to isolate y on one side of the equation, while all other variables and constants are also on the other side of the equation.

We first of all group all the y terms on one side of the equation to obtain,

$6x - 11 = 4y - 3y$

We simplify to get,

$6x - 11 = y$

This implies that,

$y = 6x - 11$

QUESTION 4

The given equation is,

$3(2x + 4) = 2 + 6x + 10$

We want to solve for x. This means that we need to isolate x on one side of the equation, while all other variables and constant are also on the other side of the equation.

Let us first expand the brackets to get,

$6x + 12 = 2 + 6x + 10$
This implies that

$6x + 12 = 6x + 12$

We group like terms to get,

$6x - 6x = 12 - 12$

We now simplify both sides to get,

$0x = 0$

We don't want x to vanish, so let us try to divide both sides by zero to get,

$x = \frac{0}{0}$

This is an indeterminate form, which implies that, x has infinitely many solutions. This means that all the real numbers are solution to the equation.

$\therefore \: x \in \: R$

QUESTION 5

The given equation is,

$y = - 3x + 6$

We want to solve for x, so we add the additive inverse of 6, which is -6 to both sides of the equation to get,

$y - 6 = - 3x$

We rewrite this to obtain,

$- 3x = y - 6$

We divide through by -3 to get,

$\frac{ - 3x}{ - 3} = \frac{y}{ - 3} - \frac{6}{ - 3}$

This will give us,

$x = - \frac{y}{3} + 2$

or

$x= 2 - \frac{1}{3} y$

5 0

3 years ago

The sum of two consecutive positive integers is less than 15.

Lilit [14]

Answer:

Step-by-step explanation:

first and foremost the two consecutive numbers will be x and x + 1, which will equal to 2x + 1.

2x + 1 > 15

2x + 1 = 15

Collect like terms

2x = 15 - 1

2x = 14

Divide both sides by 2

x = 7

6 0

3 years ago

Please help :( will give brainliest!

Fittoniya [83]

B c and d are correct

3 0

3 years ago

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The triangles below are similar. Find the length of the missing side (giving brainliest and thanks to all!)

andreev551 [17]

Answer:

x = 4

Step-by-step explanation:

I think this is correct

7 0

2 years ago

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To play his game, Charles must distribute 350 tokens, when there are 7 players. How many will he have to distribute for 11 playe

Rzqust [24]

First divide 350 with 7

350/7 = 50.

Each player gets 50 tokens.

Now there are 11 players.

Multiply 50 with 11

50 x 11 = 550

550 tokens are distributed for 11 players

hope this helps

4 0

3 years ago

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