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3 years ago

I can not find the answer to any of these. Could you please help me explain and find the answer

Mathematics

1 answer:

yanalaym [24]3 years ago

8 0

1.) *13 hours of tandem bicycles were rented.*
The equation to use would be 12s+17t=519, where s is hours of standard bicycles rented and t is hours of tandem bicycles rented. It says that 22 hours of standard were rented so plug in 22 for s, giving you (12×22)+17t=519. And solve the equation from there.

2.) *C. 65g+55s=6500*
It says to use "g" for general admission tickets and that each costs $65. And use "s" for student admission tickets, with each costing $55. So just put the correct matching cost and variable that it stands for together.

3.) *A. distributive property*
So you start with the distributive property where you have to distribute -2(2x-5). So it should be:
Step 1: x - 2(2x) - 2(-5) = 8
Step 2: x - 4x + 10 = 8
Step 3: -3x + 10 = 8
Step 4: -3x + 10 - 10 = 8 - 10
Step 5: -3x = -2
Step 6: -3x ÷ (-3) = -18 ÷ (-3)
Step 7: x = 6
The problem started with step 1 with distributive property when they forgot to multiply the -2 to the -5, but instead they multiplied +2 which was wrong.

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Help! the picture is the problemmm

Amanda [17]

Answer:

sorry i cant answer that one man.

Step-by-step explanation:

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3 years ago

Any suggestions or answers

Murrr4er [49]

1 solution. it can't be 2, and if you solve it, there is a solution, x stays in the equation, so there's 1 solution

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3 years ago

Simplity (4^-2)^5 A.1/4^10 B. 4^3 C.1/4^3 D. 4^10

Goshia [24]

Answer:

$(4^{-2})^5=\dfrac{1}{4^{10}}$

Step-by-step explanation:

The given expression is : $(4^{-2})^5$

We need to simplify the above expression.

We know that, $x^{-a}=\dfrac{1}{x^a}$

$(4^{-2})^5=(\dfrac{1}{4^2})^5\\\\=\dfrac{1^5}{(4^2)^5}\\\\\because (x^b)^c=x^{b\times c}\\\\=\dfrac{1}{4^{10}}$

So, the simplified form of the given expression is $\dfrac{1}{4^{10}}$ . Hence, the correct option is (A).

5 0

3 years ago

Read 2 more answers

Stephan is planning a hiking trip at Kings Canyon National Park. He plans to hike 14 miles every 2 days. If he hikes 42 miles, h

Stels [109]

Well for THIS one you'd have to find how many miles he hikes in ONE day, so you would divide 14 by 2 to get 7 miles per day, and to find how many days he hiked in 42 miles, just divide 42 divided by 7 which equals 6, so it took him 6 days to hike 42 miles. =)
I hope I helped! =D

8 0

3 years ago

The hourly wages earned by 20 employees are shown in the first box and whisker plot below. The person earning $15 per hour quits

serg [7]

I added the plots in the attachments.

Answer:

The mean will decrease

The median will remain the same

Explanation:

1- checking the mean:

Mean of the salaries is calculated as follows:

$Mean = \frac{sum-of-salaries}{number-of-employees}$

Now, we can note that two parameters affect the mean, let's consider each:

a. Number of employees:

We are given that one employee is replaced with another. This means that the number of employees did not change

b. Sum of salaries:

We are given that a person earning $15 left and the new person earns $7. This means that:

New sum of salaries = old sum of salaries - 15 + 7 = old sum of salaries - 8

This means that the sum of salaries decreased by 8

Now, for the mean:

We can conclude that since the numerator decreased while the denominator stayed the same, the mean will decrease

2- checking the median:

In the whisker plots, the median is represented by the vertical line inside the plot.

In the first plot, we can note that the vertical line is nearly half the distance between 9 and 10. This means that, for the first plot, the median is approximately 9.5

In the second plot, the place of the median is unchanged. It is still approximately midway between 9 and 10 which means that the median in the second plot is approximately 9.5

Therefore, the median of the data remains unchanged.

Hope this helps :)

5 0

3 years ago

Read 2 more answers