Write 4.25 as a mixed number and as an improper fraction. Write your answers in simplest form.

Answer:

Step-by-step explanation:

52 = 5x + 17

52 - 17 = 5x

x = 35 / 5

x = 7

Answer:

5b+16

Step-by-step explanation:

Answer:

[tex]5b+16[/tex]

Step-by-step explanation:

[tex]19-(3-5b)[/tex]

Remove parentheses

[tex]=19-3+5b[/tex]

Subtract the numbers: [tex]19-3=16[/tex]

[tex]=5b+16[/tex]

Answer:

B) 275n + 1000 = 2700

Step-by-step explanation:

n is just a placer holder for how many days the Carter family can vacate.

That being said, the question says that they will spend 275 per day, which is per n. You want to multiply 275 by n.

Then the question says it plans to spend $1000 on meals (that's a lot). Instead of substracting, you are going to add for this equation. You want the equation to match; you want both sides to equal 2700 so you can determine how many days you can spend there.

Answer:

-1.48

Step-by-step explanation:

I do 0.20+0.40=70+8+0.78+1=1.78

Answer:

30 degrees

Step-by-step explanation:

Keep this in mind, ALL triangles must equal 180 degrees.

This is an acute triangle, hence one of the angles is 90 degrees. To find the other two angles, we must solve for x. Since we know the sum of all angles in this triangle must equal 180 degrees, we know for setting up our equation, all the angles should equal 180.

[tex]90 + (x+37) + (x+67) = 180\\[/tex]

Now solve for x by isolating x

[tex]2x + 194 = 180\\2x=-14\\x=-7[/tex]

Our x is -7, now that we know that the numerical value of x is -7, replace x with -7 for angle A.

-7 + 37 = 30

<A is 30 degrees.

Check your work

Plug in -7 where you see x.

[tex]90 + (x+37) + (x+67) = 180\\90 + (-7+37) + (-7+67) = 180\\90 + 30 + 60 = 180\\180 = 180[/tex]

Turns out this was a 30-60-90 triangle. ✅

Answer:

The blue box

Step-by-step explanation:

Youre talking about range which takes place on the y-axis (domain is the x-axis).

The top point is an open circle which indicates in the math world the parentheses and the bottom point 1 in a bracket as its a closed circle.

Answer:

0.25

How to Solve:

Take the denominator of 4/16 and find a number to make it 10, 100, any one followed by zeroes:

16 x 6.25 = 100

Do the same to the numerator:

4 x 6.25 = 25

Now, take 25 and take a decimal point two spaces to the right:

0.25

Answer:

She can eat for around 22 days before her has to add money.

Answer:

the average times per week that college students across the nation eat out lies within these 95% confidence interval

      [tex] 3.938  <  \mu < 4.062 [/tex]

Step-by-step explanation:

From the question we are told that

    The sample size is n =  1501

    The sample mean  is  [tex]\= x = 4[/tex]

      The standard deviation is  [tex]\sigma = 1.5[/tex]

From the question we are told the confidence level is  95% , hence the level of significance is    

      [tex]\alpha = (100 - 95 ) \%[/tex]

=>   [tex]\alpha = 0.05[/tex]

Generally from the normal distribution table the critical value  of  [tex]\frac{\alpha }{2}[/tex] is  

   [tex]Z_{\frac{\alpha }{2} } =  1.96[/tex]

Generally the margin of error is mathematically represented as  

      [tex]E = Z_{\frac{\alpha }{2} } *  \frac{\sigma }{\sqrt{n} }[/tex]

=>   [tex]E = 1.96  *  \frac{1.5 }{\sqrt{1501} }[/tex]

=>   [tex]E = 0.06196 [/tex]

Generally the estimate for average times per week that college students across the nation eat out at a 95% confidence is  mathematically represented as

      [tex]\= x -E <  \mu <  \=x  +E[/tex]

      [tex]4  -0.06196  <  \mu < 4  + 0.06196[/tex]

=>   [tex] 3.938  <  \mu < 4.062 [/tex]

Hence the true average times per week that college students across the nation eat out lies within this interval

Answer:

 The decision rule is  

Fail to reject the null hypothesis

  The conclusion is

 There is no sufficient evidence to conclude that older people are slower

Step-by-step explanation:

From the question we are told that  

    The average time taken is  [tex]\mu = 2.5 \ seconds[/tex]

      The  sample size is  [tex]n = 30[/tex]

     The sample mean is  [tex]\= x = 2.7 \ seconds[/tex]

      The standard deviation is  [tex]\sigma = 1.4 \ seconds[/tex]

The null hypothesis is  [tex]H_o: \mu = 2.5[/tex]

The alternative hypothesis  is  [tex]H_a : \mu > 2.5 \ seconds[/tex]

Generally the test statistics is mathematically represented as

                [tex]z = \frac{\= x - \mu }{ \frac{\sigma }{ \sqrt{n} } }[/tex]

=>              [tex]z = \frac{ 2.7 -2.5 }{ \frac{1.4}{ \sqrt{30} } }[/tex]

=>              [tex]z = 0.7825[/tex]

From the z table  the area under the normal curve to the right corresponding to  0.7825   is  

                [tex]p-value = P(Z > 0.7825 ) = 0.21696[/tex]

So from the question we see that the [tex]p-value > \alpha[/tex] hence

 The decision rule is  

Fail to reject the null hypothesis

  The conclusion is

 There is no sufficient evidence to conclude that older people are slower

Answer:

i personally think the 65 in. one

Step-by-step explanation:

Answer:

Question 1: 3380g

Question 2: 2g/cm^3

Step-by-step explanation:

I used online mass and density calculators. Hope this helps :)!

i think your answer is going to be 4,200/70 = 70

^^

Answer:

the answer would be -2, -6 and if you need more help i believe you can  work up to it

Step-by-step explanation:

Answer:

x=-1, y=0

Step-by-step explanation:

Hope this is right!!

Answer: where are the options?

Step-by-step explanation:

Answer:

There is not enough information presented to give an answer

Step-by-step explanation:

If you add more information, I will try and answer it for you

The solution is Option C.

The triangle with sides 6 , 8 and 9 is an acute triangle

What is a Triangle?

A triangle is a plane figure or polygon with three sides and three angles.

A Triangle has three vertices and the sum of the interior angles add up to 180°

Let the Triangle be ΔABC , such that

∠A + ∠B + ∠C = 180°

The area of the triangle = ( 1/2 ) x Length x Base

For a right angle triangle

From the Pythagoras Theorem , The hypotenuse² = base² + height²

Given data ,

Let the triangle be ΔABC

Now , the sides of the triangle is

The measure of side AB = 6

The measure of side BC = 8

The measure of side AC = 9

Now , for a triangle

a² + b² > c² , the the triangle is an acute triangle

a² + b² = c² , then the triangle is right triangle,

a² + b² < c² , then it is an obtuse triangle

Now , If it is an equilateral triangle , a = b = c

Substituting the values in the equation , we get

AC² < AB² + BC²

9² < 6² + 8²

81 < 36 + 64

81 < 100

Hence , the triangle ABC is an acute triangle

To learn more about triangles click :

https://brainly.com/question/16739377

#SPJ2

Answer:

4

Step-by-step explanation:

1+1+1+1=2+2=4

Answer: X make the equation true

Step-by-step explanation:

Answer:

Answer D

Step-by-step explanation:

120 + 81+ 39=240 silver bikes

80+54+26= 160 black bikes

Total 200 + 135 + 65= 400

240+ 160=400

Answer:

Answer is C

Step-by-step explanation:

ap3xxx

Answer:

4\3

Step-by-step explanation:

Answer:

4/3

Step-by-step explanation:

because if you caculate right and do the answer correctly it is D. thanks can i get brainlest.

Answer:

It looks like you wrote the equation in point-slope form perfectly!

But for part c, it seems as though x1 and y1 would represent parts of the midpoint formula. So, I would specify and say that they represent the midpoint, not just a point.      

Step-by-step explanation:

Answer:

$11

Step-by-step explanation:

0.50 × 6 = 3

3 + 8 = 11

Answer - $11

Hope this helps

Answer: 4/9

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

edge 2021

Answer:

125 hw

Step-by-step explanation: 5 times 25