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vodomira [7]
2 years ago
6

Expand: 4(5x+5) - 3(2x + 4)

Mathematics
2 answers:
Maurinko [17]2 years ago
5 0

4 x 5x = 20x

4 x 5. = 20

-3 x 2x = - 6x

-3 x 4 = - 12

Line them up, collect like terms & simplify

20x + 20 - 6x - 12

20x - 6x = 14x

20 - 12 = 8

Thus, answer is 14x + 8

Hope this helps!

aliina [53]2 years ago
3 0

Answer:

14x + 8

Explanation:

⇒ 4(5x+5) - 3(2x + 4)

distribute inside parenthesis

⇒ 4(5x) + 4(5) - 3(2x) - 3(4)

multiply the variables

⇒ 20x + 20 - 6x - 12

collect like terms

⇒ 20x - 6x + 20 - 12

subtract like term

⇒ 14x + 8

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62.4% of what is 17.16?
Maksim231197 [3]
To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 17.16 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 17.16 is 100%, so we can write it down as 17.16 = 100%.

4. We know, that x is 62.4% of the output value, so we can write it down as x=62.4%

5. Now we have two simple questions:

1) 17.16 = 100%

2) x=62.4%

Where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

17.16÷x=100%÷62.4%

6. Now we just have to solve the simple equation, and we will get the  solution we are looking for.

7. Solution for what is 62.4% of 17.16

17.16÷x=100/62.4%

(17.16÷x)×x=(100÷62.4%)×x

17.16=1.60256410256×x

(1.60256410256) to get x

17.16÷1.60256410256=x

10.70784=x

x=10.70784

Now we have:
62.4% of 17.16=10.70784

So 10.70784 is your answer

Hope this  helps :)



3 0
4 years ago
Read 2 more answers
12y-6x=-18<br> Solve equation for x variable
kari74 [83]
Answer is x= 2y + 3 hope this helps

7 0
3 years ago
How many solutions are there to the equation below?
Elza [17]

Answer:

no solution

Step-by-step explanation:

heres why:

Let's solve your equation step-by-step.

4x−9(x+1)=20−5x

Step 1: Simplify both sides of the equation.

4x−9(x+1)=20−5x

4x+(−9)(x)+(−9)(1)=20+−5x(Distribute)

4x+−9x+−9=20+−5x

(4x+−9x)+(−9)=−5x+20(Combine Like Terms)

−5x+−9=−5x+20

−5x−9=−5x+20

Step 2: Add 5x to both sides.

−5x−9+5x=−5x+20+5x

−9=20

Step 3: Add 9 to both sides.

−9+9=20+9

0=29

so there are no solution

4 0
3 years ago
What 2 decimals make 5.036
salantis [7]
2 is the tens position meaning 2 tens 
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3 years ago
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In a 3-4-5 right triangle which expression would provide the measure of the smallest acute angle
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The possible expressions for the measure of the smallest acute angle

     sin\:\theta =\frac{3}{5}\:or\:\theta =sin^{-1}\left(\frac{3}{5}\right)

     cos\:\theta =\frac{4}{5}\:or\:\theta =cos^{-1}\left(\frac{4}{5}\right)

     tan\:\theta =\frac{3}{4}\:or\:\theta =tan^{-1}\left(\frac{3}{4}\right)

These three expressions are the possible measure of the smallest acute angle. 
5 0
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