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koban [17]
3 years ago
7

Explain why you rename 4 1/4 to find 4 1/4- 3/4​

Mathematics
1 answer:
Hitman42 [59]3 years ago
6 0

Answer:

Because it is a mixed fraction and it should be renamed in order to solve your problem, for the other one CAN NOT be converted into a mixed fraction.

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Which mathematical property is demonstrated? 5⋅7⋅4=5⋅4⋅7
gavmur [86]
Commutative Property is used here
3 0
4 years ago
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Diana paints 150 fence posts and chuck paints 130 fence posts. Diana paints 10 more fence posts than chuck. How many fence posts
statuscvo [17]

Complete Question

The  complete question is shown on the first uploaded image

Answer:

Step-by-step explanation:

From the question we are told that

  The  relationship is  \frac{150 }{d}   = \frac{130}{c}

   The number of fence post painted by chuck is  l = 130

    The number of fence post painted by Diana  is k =  150

    can paint 10 fences more than chuck  so let say the  of fence painted in an hour by chuck is g

     Then  the number of fence post painted by Diana in one hour is

          f =  g+ 10

 So

       \frac{150 }{ g + 10 }   = \frac{130}{g}

       130 g  + 1300 =  150g

        g =  65 \  m

5 0
4 years ago
I need this please help me
vesna_86 [32]
I believe it's c. it's the only reasonable answer.
6 0
3 years ago
Read 2 more answers
Solve, using the substitution method.
Dafna11 [192]

Hello there!

The question asks us to solve using the substitution method. The equations given are:

2x+3y=1

y=x-8

We are given a value for y, which is x-8. Substituting y=x-8 into the first equation of the system of equation gives us:

2x+3y=1

2x+3(x-8)=1

Use the distributive property to help simplify and solve for x

2x+3x-24=1

Combine like terms

5x-24=1

Add 24 to both sides

5x-24+24=1+24

5x=25

Finally, divide both sides by 5

x=5

Now, let's use x=5 in the equation y=x-8 to find the value of y

y=x-8

y=5-8

y=-3

Now, we have the values x=5 and y=-3. Putting these values into an ordered pair gives us the answer (5,-3), which is the last answer choice.

Let me know if you need any clarifications, thanks!

~ Padoru

5 0
4 years ago
Your medical research team is investigating the standard deviation of the cost of a 30-day-supply of a certain heart medication.
Valentin [98]

Considering the situation described, the hypothesis tested are given as follows:

  • The null hypothesis is H_0: \sigma \geq 23
  • The alternative hypothesis is H_1: \sigma < 23

<h3>What are the hypothesis tested?</h3>

At the null hypothesis, it is tested if the standard deviation is not less than $23, that is:

H_0: \sigma \geq 23

At the alternative hypothesis, it is tested if there is significant evidence t conclude that the standard deviation is less than $23, that is:

H_1: \sigma < 23

More can be learned about an hypothesis test at brainly.com/question/26454209

4 0
3 years ago
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