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Kazeer [188]
4 years ago
13

Please Help  Me With These QUESTIONS!!!!!!! I Give Thanks!!!!!!!

Mathematics
1 answer:
Bezzdna [24]4 years ago
8 0

1).  Total cost for a rental = $12 just to talk to them +  $8 per hour .

                     $44              =  12        + 8 (number of hours)

                       32              =                  8 (number of hours.
____________________

2).  333 = 6 x (number of students on each bus) + 9 mores students

       324 = 6 x (number of students on each bus) .
______________________________

3).  If all 3 numbers were the same number,
then each one would be  1/3 of 138.  That's 46 .

Take 1 away from one of the 46s and add it on to another 46 .
Their sum is still 138, but now you have 3 consecutive numbers.
________________________________

4).   $150 = cost of 6 books  +  $12 left over.

        $138 = cost of 6 books.
_________________________________

5).  If all three numbers were the same number,
then each of them would be  1/3 of 84.  That's  28.

Take 2 away from one of the 28s, and add it onto another one.  
Their sum is still 84, but now you have 3 consecutive even numbers.
_________________________________

6).  Keith has 45 cards today.
      This morning, before his dog ate any of them, he had 90.
       That was after he bought 6 new ones.
___________________________________

7).  Sandy has 14 comic books.
      Before she bought 6 new ones, she had 8 .
      That's the half she had left after she sold half of them.        
___________________________________

8).  Sally has $11 now.
       Before she earned $9 washing the car, she had $20 .
       That's the half she had left after she spent half at the movies.           
____________________________________

9).  Fred spent $31 for a soft drink and 7 candy bars.
      $3 of that was for the drink, so the 7 candy bars cost $28 .
_____________________________________

10). If all three numbers were the same number, then
each one would be  1/3 of 105.   That's  35 .
                  
Take 2 away from one of the 35s and
add it onto another one.

They still all add up to 105, but now you have
three consecutive odd numbers.

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A certain gecko measured 3.5 inches as a hatchling, and then grows at a steady rate of 1.2 inches per month for the first 12 mon
gregori [183]

Answer:

21.1 inches

Step-by-step explanation:

The gecko is 3.5 inches to start with.

If it grows at a rate of 1.2 inches per month for the first 12 months, after 12 months the gecko will be 14.4 inches larger. (Because 12 times 1.2 is 14.4)

So, after 12 months the gecko will be 17.9 inches.

Since the gecko grows at 0.4 inches per month for the next 16 months, and the gecko has grown for 20 months, all we need to do is subtract 12 from 20 (since we already calculated how long it will be after 12 months) and multiply that by 0.4.

Since 20 - 12 is 8, we just multiply 8 by 0.4 to get 3.2. We now add 3.2 to 17.9 to get 21.1 inches.

Hope this helps!

6 0
3 years ago
Which of the following is a polynomial?
Akimi4 [234]

Answer:

I believe c is the answer.

Step-by-step explanation:

5 0
4 years ago
The dimensions of a rectangular building are 13 yards by 29 yards. What is the area of the building in square yards
Elenna [48]

Answer: 377 yards

Step-by-step explanation:

<em>Ok, so to find an area, you need to multiply both sides.</em>

13x29

<em>You will then find that 13x29=377</em>

13

x29

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377

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3 0
3 years ago
You want know if self-checkout is faster than regular checkout. One hundred customers were sent to
Kazeer [188]

A researcher's design of an experiment is to make clearer already known

facts, or to discover new knowledge.

The responses are:

  • Experimental units: <u>The customers</u>
  • Explanatory variable: The <u>type of checkout used</u>
  • Treatments: The <u>checkout to which a customer is sent to</u>
  • Response variable: The <u>time it takes to check out</u>

Reasons:

The aim of the experiment is to determine if self-check out is faster than

regular checkout.

The number of customers sent to one of the checkout options = 100

The experimental units are the subject of the experimental treatment.

Therefore;

  • <u>The experimental units are the customers</u> that are sent to a particular checkout.

An explanatory variable is the manipulated variable in an experiment. An explanatory variable is known as an independent variable.

  • In the question, <u>the explanatory variable are the type of checkout</u>; Self-checkout or regular checkout

Treatments are the levels of the explanatory variable available in the experiment, or a combination of the levels. The treatment is what the experimental units are subjected to.

  • In the question, <u>the treatment are the use of self-checkout or regular checkout</u>.

The response variable, is also known as the dependent variable, that depends on the treatment an experimental unit is subjected to.

  • <u>The response variable in the question is the times it takes to checkout</u>

Learn more about experimental design here:

brainly.com/question/2118275

3 0
3 years ago
Find X. Give your answer in the simplest form.
mojhsa [17]

Answer: 8

Step-by-step explanation:

We can use trigonometry to solve this:

If we call the angle at the top Ф then x is the opposite and 8 is the adjacent

Therefore we use Tan to solve this:

Tan Ф = opposite/adjacent

Tan 45 = X/8

1 = X/8

8 x 1 = X

Therefore X = 8

8 0
3 years ago
Read 2 more answers
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