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Oliga [24]
3 years ago
6

A small train at an amusement park is carrying passengers. Half of the passengers are 4 years old, 110 are 5 years old, 310 are

6 years old, and 110 are 7 years old.
What is the expected age for one of the passengers on the train?

5 years
6.1 years
5.5 years
6 years
Mathematics
1 answer:
mylen [45]3 years ago
7 0
The answer to your question is 5
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Can someone please help me<br> Find EF
Nimfa-mama [501]

Answer:

Step-by-step explanation:

Remark

The relationship that solves this is

The outside segment * the whole length of the secant = the outside segment of the other secant * the whole length of the second secant.

Put in symbolic (and hence easier language)

GF * EG = HG * SG

Givens

GF = 4

EG = 2x + 4

GH = 5

SG = x + 5

           

Equation

4*(2x + 4) = 5*(x + 5)               Remove the brackets

8x + 16 = 5x + 25                    Subtract 5x from both sides

8x - 5x + 16 = 25                    Combine

3x + 16 = 25                            Subtract 16 from both sides

3x = 25 - 16                        

3x = 9                                     Divide by 3

3x/3 = 9/3

x = 3

EF = 2 * 3

EF  = 6

6 0
3 years ago
Solve for the variable 4-14=5x
Sergeeva-Olga [200]

Answer:

X = 2

Step-by-step explanation:

4-14=5x

10=5x

10/5=5x/5

2=x

4 0
3 years ago
Read 2 more answers
Can someone please help me with number 19
kipiarov [429]
The expression of the problem is, 8x.
where "x" stands for the number of dogs. so you would then substitute x with 12. Then you would solve the problem to get your answer.(8•12)
3 0
3 years ago
What is the expression for the calculation double 5 and then multiply by 3?
Ksivusya [100]
(2 x 5) x 3

will be your answer for the expression

hope this helps
4 0
3 years ago
Solve |3x - 4| = 6<br> a) {-10/3,10/3}<br> b) {-2/3,10/3}<br> c) {-2/3,2/3}
ella [17]
To dea with absolute values you need to apply the definition of absloute value OR get rid of it by squaring both sides of the equality.
Let's try it by using the definition of the absolute value:
\left |  \alpha  \right |  \left \{ {{ \alpha ,  \alpha  \geq 0} \atop {- \alpha ,  \alpha \ \textless \ 0}} \right.

So, having that in mind, we must split the initial equation into two.
\left | 3x-4 \right | \left \{ {{(3x-4), x \geq 4/3} \atop {-(3x-4),x\ \textless \ 4/3}} \right.
Then, we end up with two equations:
3x-4=6 \\ -(3x-4)=6
Both yield the solutions:
x=10/3 \\ x= -2/3

So your answer would be the second option
8 0
3 years ago
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