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NeTakaya
4 years ago
7

What is the sum of 5x and 9x? A.14x B. 12x C. 45x D. 3x

Mathematics
2 answers:
galina1969 [7]4 years ago
7 0
A. 14x

Since you can just add them together, because both of them have x .

So it turns into / you can think it as this way
*(i'm not sure if you learned this yet but it's called factorization)*
*(you're gonna learned it in the future)*

5x + 9x
= x(5+9) *this step help you understand better :)
= x14
= 14x

Hope I can help you :) Good luck in math
kodGreya [7K]4 years ago
5 0
The sum is the answer of an addition question. 9+5=14

The answer is A. 14x
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A bike rental stand at the beach charges $5 to rent a bike in targit charges to every half hour it is rented if someone pays $17
denis23 [38]

Answer:

They would have the bike for 1.7 hours

Step-by-step explanation:

The bike is rented at a charge of $5 for every half an hour,this can be expressed as:

$5 per 0.5 hours, to calculate the time one will have the bike if they pay $17

The amount of paid=Standard Rate per 1/2 of an hour/Number of hours

where;

The amount paid=$17

Standard Rate per 1/2 an hour=$5/0.5

Number of hours

Replacing;

n=(17×0.5)/5=1.7 hours

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3 years ago
In a equation below, for what value of c does x=4? 1/2(2x+4)=3x-c
oksano4ka [1.4K]

Answer:

c = 6

Step-by-step explanation:

1/2 (2(4) + 4) = 3(4) - c

1/2 (8 + 4) = 12 - c

1/2 (12) = 12 - c

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3 years ago
What is the 8th term of the binomial expansion (x + y)10?
melisa1 [442]

Answer:

120x^3y^7

We can use the Pascal's triangle to solve this question.

This pascal's triangle is shown in the Image below. To build the triangle, begin with the number 1 at the top, then continue placing numbers below it in a triangular pattern. In this way, each number are the numbers directly above added together. So, the expression is :

(x+y)10

After you do the steps you be left with:

120x^3y^7

4 0
3 years ago
Read 2 more answers
A rose garden is formed by joining a rectangle and a semicircle, as shown below. The rectangle is 31 ft long and 20 ft wide. If
vekshin1

Answer:

133 ft

Step-by-step explanation:

Given in the question,

length of the rectangle = 31 ft

width of the rectangle= 20 ft

diameter of semicircle = 20 ft

radius of semicircle = 20/2 ft = 10 ft

Formula to use:

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perimeter of rectangle = 2(l+w)

perimeter of semicircle = 1/2(2πr)

Plug values in the formula above

2(31 + 20) + 3.14(10)

133.4 ft

≈ 133 ft

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4 years ago
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