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Kazeer [188]
3 years ago
13

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

Mathematics
1 answer:
Bezzdna [24]3 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.

You might be interested in
Write an exponential function y = abx for a graph that includes (2, 24) and (3, 48).
labwork [276]
I think you mean y=ab^x.
First, plug in the values of x=2 and y=24 for the first equation, and x=3 and y=48 for the second one:

24 = ab^2
48 = ab^3

divide equation 2 by equation 1:
2 = b^1

or, more simply:
2 = b

now plug b into one of the equations to get "a":

24 = a*2^2
24 = a*4
6 = a

So, the answer is y = 6(2)^x
(I think you need to specify the power of x in your answers)
7 0
3 years ago
Read 2 more answers
The graph of which function has a minimum located at (4, –3)?
valentinak56 [21]

Answer:

None of the options is the answer to the question

Step-by-step explanation:

we know that

The equation of a vertical parabola into vertex form is equal to

f(x)=a(x-h)^{2}+k

where

(h,k) is the vertex of the parabola

case A) we have

f(x)=x^{2}+4x-11

In this case the x-coordinate of the vertex will be negative

therefore

case A is not the solution

case B) we have

f(x)=-2x^{2}+16x-35

This case is a vertical parabola open downward (the vertex is a maximum)

The vertex is the point (4,-3) <u>but is not a minimum</u>

see the attached figure

therefore

case B is not the solution

case C) we have

f(x)=x^{2}-4x+5

Convert into vertex form

Group terms that contain the same variable, and move the constant to the opposite side of the equation

f(x)-5=x^{2}-4x

Complete the square. Remember to balance the equation by adding the same constants to each side

f(x)-5+4=(x^{2}-4x+4)

f(x)-1=(x^{2}-4x+4)

Rewrite as perfect squares

f(x)-1=(x-2)^{2}

f(x)=(x-2)^{2}+1 --------> vertex form

The vertex is the point (2,1)

therefore

case C is not the solution

case D) we have

f(x)=2x^{2}-16x+35  

Convert into vertex form

Group terms that contain the same variable, and move the constant to the opposite side of the equation

f(x)-35=2x^{2}-16x

Factor the leading coefficient

f(x)-35=2(x^{2}-8x)

Complete the square. Remember to balance the equation by adding the same constants to each side

f(x)-35+32=2(x^{2}-8x+16)

f(x)-3=2(x^{2}-8x+16)

Rewrite as perfect squares

f(x)-3=2(x-4)^{2}

f(x)=2(x-4)^{2}+3 --------> vertex form

The vertex is the point (4,3)

therefore

case D is not the solution

The answer to the question will be the function

f(x)=2x^{2}-16x+29

7 0
4 years ago
Read 2 more answers
If one battery is 5 cm long how many batteriess would i need to get to 3 meters (need work )
dem82 [27]
1. So in one meter,there are 100 centimeters.
2. Multiply 100 by 3 which equals 300.
3. Divide 300 by 5 which equals 60.
4. 60 is your answer!!!

Hope this helped!! :)
4 0
3 years ago
Someone please help and make sure the answer is right :)
Yuki888 [10]

Answer:

A - 7

Step-by-step explanation:

These angles are corresponding, meaning they are congruent. Therefore it is simple algebra.

16x - 7 = 105

16x = 112

112/16 = 7

x=7

3 0
3 years ago
Read 2 more answers
Someone plz help me :(
Natali [406]

Answer:

A

Step-by-step explanation:

the ratio shows that for every two songs beth's mom has, beth has one more.

*3 is larger than 2 by 1

meaning, if her mom has 6 songs, then she will have 7

if Beth has 12 songs, her mom would have one less, 11

5 0
3 years ago
Read 2 more answers
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