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antiseptic1488 [7]
3 years ago
12

Twin​ brothers, person A and person​ B, can mow their​ grandparent's lawn together in 40 minutes. Person A could mow the lawn by

himself in 18 minutes less time than it would take person B. How long would it take person B to mow the lawn by​ himself?
Mathematics
1 answer:
Alex3 years ago
3 0
22 minutes I believe
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25.3 = s + 6.2<br><br> s= unknown
den301095 [7]

Answer:

s = 19.1

Step-by-step explanation:

Simplifying

25.3 = s + 6.2

10011813 avatar

Solving

25.3 = 6.2 + s

Solving for variable 's'.

Move all terms containing s to the left, all other terms to the right.

Add '-1s' to each side of the equation.

25.3 + -1s = 6.2 + s + -1s

Combine like terms: s + -1s = 0

25.3 + -1s = 6.2 + 0

25.3 + -1s = 6.2

Add '-25.3' to each side of the equation.

25.3 + -25.3 + -1s = 6.2 + -25.3

Combine like terms: 25.3 + -25.3 = 0.0

0.0 + -1s = 6.2 + -25.3

-1s = 6.2 + -25.3

10011813 avatar

Combine like terms: 6.2 + -25.3 = -19.1

-1s = -19.1

Divide each side by '-1'.

s = 19.1

Simplifying

s = 19.1

4 0
2 years ago
Is the following function even, odd, or neither?<br> 1<br> 4 – 22
olga2289 [7]

Answer:

I would think neither after graphing it. Sorry if i'm wrong.

Step-by-step explanation:

4 0
2 years ago
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Please answer!!!!!!!!!!!!!!!!!
laiz [17]
The answer is B, the green is f(x)=x^2 and the red one is g(x)=f(2x).

4 0
2 years ago
What is 9 time 9? Please help.
Mandarinka [93]
9 times 9 gives you 81

7 0
3 years ago
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We form a committee of 8 people, to be chosen from 15 women and 12 men. (a) How many possible committee can be formed
eimsori [14]

Using the combination formula, it is found that 2,220,075 committees can be formed.

The order in which the people are chosen is not important, hence, the <em>combination formula</em> is used to solve this question.

<h3>Combination formula: </h3>

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by:

C_{n,x} = \frac{n!}{x!(n-x)!}

In this problem, 8 people are chosen from a set of 12 + 15 = 27, hence:

C_{27,8} = \frac{27!}{8!19!} = 2220075

2,220,075 committees can be formed.

To learn more about the combination formula, you can take a look at brainly.com/question/25821700

3 0
2 years ago
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