round each number to the underline digit 729,465

Answer:

1.  221+ 727  

2.  45+5  

3.  220+ 244  

4.  2( -285)  

5.  (-9)

6. 1665  (multiplying)

7.  -3074 (multiplying)

8.  685 *5

9. - 20  2/9

10. 82575 (multiplying)

Step-by-step explanation:

1.34+914=____221_____________

948 =  221+ 727     (subtracting 221 from 948)

2. 16+34=______45___________

50=  45+5    ( adding 5 to 45 to get 50)

3. 46+418=_________220________

464= 220+ 244    ( subtracting 220 from 464)

4. 45-615=2 ________________

- 570 = 2( -285)   (dividing -570 by 2)

5. 25-36=_________________ (-9)

-9 = -9   ( subtraction)

6. 37 x 45=_________________ 1665  (multiplying)

7. 58x (-53)=_________________ -3074 (multiplying)

8. 3425=_________________ 685 *5  (dividing by 5)

9. 910÷(-45)=_________________ 182/ (-9) (dividing both by 5)

= - 20  2/9

10. 367 x 225=_________________ 82575 (multiplying)

Answer:

Yes, you will have enough ribbon

Step-by-step explanation:

16/4 divided by 1/8

32 people will get ribbon

Answer:

Yes you have enough

Step-by-step explanation:Multiply 1/4 times 2 that is 2/8, Already 2 people done.22 people are left and 4 whole yards of ribbon are left too, for every yard of ribbon you have right now its 8 people so , 4 times 8 is 32.So you have enough.

Answer:

C

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

Answer:

Chang sent 17 messages, Alonzo sent 51 and Raina sent 26.

Step-by-step explanation:

You turn the word problem into an algebraic expression and solve

Answer:

Thank U

Step-by-step explanation:

Answer:

thx

Step-by-step explanation:

Answer:

b=63

Step-by-step explanation:

2/9b=1/3b-7

sub 1/3 from each side

-1/9b=-7

them multiply both sides by -9/7

Answer:

desmos

Step-by-step explanation:

look up desmos. its a grphing calculator and it gives u all the awnsers. welcome bro

Answer:

Y - intercept is -4

X - intercept is 3

x, and y are both variables that stand for the intercepts in the equation, if that makes sense.

Hope that helps and have a great day!

Answer:

9x-4

Step-by-step explanation:

Add 3x and 6x hope it help

Answer:

9x - 4

Step-by-step explanation:

3x + 6x - 4

First, combine like terms, so you would add 3x and 6x together to form 9x

9x - 4

Because you cannot simplify this equation any more, that is the answer

I hope this helps :)

Answer:

Just -3 + 13n^4

Step-by-step explanation:

Answer:

A.

Step-by-step explanation:

Answer:

a.12

Step-by-step explanation:

4.8x2.5=12

Answer:

This is a function because the Y values do not repeat.

Answer:

121

Step-by-step explanation:

74+47=121

180-121=59

59+x=180

x=121

Answer:

I'd like to say half because it's being divided by 2

Step-by-step explanation:

I hope this helps

Answer:

b

Step-by-step explanation:

plz let me know if this was wrong... hope this helps

Answer:

Multiply 25.3 by 11.7, to get the answer of 296.01

Answer:

B

Step-by-step explanation:

Complete Question

The data for this question is shown on the first uploaded image

Answer:

The 95% confidence interval estimate of the population percentage is  

   [tex] 33.2\% <  p < 76.8 \% [/tex]

Step-by-step explanation:

On the data the first value is the height of the president while the other value is the height of his opponent

    The sample size is  n  =  20  

Looking at the data we see that out of the 20  presidents that only 11 is taller than their opponent

 So the proportion of presidents that are taller than their opponents is  

      [tex]\^ p = \frac{11}{20}[/tex]  

=>   [tex]\^ p = 0.55[/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   is  

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

Generally the margin of error is mathematically represented as  

   [tex]E = Z_{\frac{\alpha }{2} } *  \sqrt{\frac{\^ p (1- \^ p) }{n}} [/tex]

  [tex]E = 1.96 *  \sqrt{\frac{0.55 (1- 0.55) }{20}} [/tex]

   [tex]E = 0.218[/tex]

Generally 95% confidence interval is mathematically represented as  

      [tex]\r p -E <  p <  \r p +E[/tex]

=>    [tex]0.55-0.218 <  p < 0.55+ 0.218 [/tex]

=>    [tex]0.332 <  p < 0.768 [/tex]

Converting to percentage

        [tex](0.332*100)\% <  p < (0.768 *100) \% [/tex]

=>    [tex] 33.2\% <  p < 76.8 \% [/tex]

Answer:

1.49 x [tex]10^{5}[/tex] hours

Step-by-step explanation:

1 day=24hours

1 year=365 days

365days=24 x 365=8760hours

17 years

= 8760hours x 17

=148920hours

=1.4892 x [tex]10^{5}[/tex]

= 1.49 x [tex]10^{5}[/tex] hours

Answer:

1.49 x  hours

Step-by-step explanation:

1 day=24hours

1 year=365 days

365days=24 x 365=8760hours

17 years

= 8760hours x 17

=148920hours

=1.4892 x

= 1.49 x  hours

50%

You need to convert the fraction (ratio)

Afterwards, you will get your answer!

I don't know how to upload or I would upload a picture of my work and how to do it to help you.

I hope this helps you!

Answer:

50percent

Step-by-step explanation:

75 is half of 150

Answer: i cant type it but take the images- hope that helps

Step-by-step explanation:

Answer:

-12k + 24

Step-by-step explanation:

-3 × -8 = 24

-3 × 4k = -12k

Answer:3(6+x)(6-x)

Step-by-step explanation:

Used a math app

Answer:

I hope this helps!

Answer:

1

Step-by-step explanation:

[remember: any number raised to the power of 0 is 1]

∴ 12^0 = 1

hope it helps you!!

Answer:

equation: y=-7.5x+15 and Raul must ride at a speed of 5 mi/hr

Step-by-step explanation:

[tex]\frac{y2-y1}{x2-x1}[/tex] to find out the slope. [tex]\frac{6-11.25}{1.2-0.5}[/tex]=[tex]\frac{-5.25}{0.7} = -7.5[/tex]

Then you fill x and y to find out the y intercept

[tex]11.25=-7.5*0.5+b[/tex]

[tex]11.25=-3.75+b\\11.25+3.75=15\\[/tex]

Y intercept= 15

then you put it in the equation:

y=-7.5x+15

Since Raul lives 5 miles closer and Luis is 5 miles away, he needs to go at 5 miles an hour to get to the spot.

That is 5 miles/hour

The distance and time, as presented in this question are illustrations of linear equations.

From the diagram, we have:

[tex](x_1,y_1) = (0.5,11.25)[/tex]

[tex](x_2,y_2) = (1.2,6)[/tex]

Start by calculating the slope (m)

[tex]m = \frac{y_2 - y_1}{x_2 -x_1}[/tex]

So, we have:

[tex]m = \frac{6 - 11.25}{1.2 - 0.5}[/tex]

[tex]m = \frac{-5.25}{0.7}[/tex]

[tex]m = -7.5[/tex]

The equation is then calculated using:

[tex]y = m(x - x_1) + y_1[/tex]

This gives

[tex]y = -7.5(x - 0.5) + 11.25[/tex]

[tex]y = -7.5x + 3.75 + 11.25[/tex]

[tex]y = -7.5x + 15[/tex]

Calculate distance, when [tex]x = 5[/tex]

We have:

[tex]y = -7.5 \times 5 + 15[/tex]

[tex]y = -22.5[/tex]

The speed (s) is then calculated as:

[tex]s = \frac{22.5}{5}[/tex]

[tex]s = 4.5[/tex]

Hence, he must plan to ride at 4.5 miles per hour

Read more about linear equations at:

https://brainly.com/question/11897796

Answer:

138

Step-by-step explanation:

The distributive property of multiplication over addition can be used when you multiply a number by a sum. For example, suppose you want to multiply 3 by the sum of 10 + 2. 3(10 + 2) = ? According to this property, you can add the numbers and then multiply by 3.

Answer:

4(6x+3) in distributive property.

Step-by-step explanation:

Answer:

32%

Step-by-step explanation:

Answer:

32%

Step-by-step explanation:

All you have to do is divide the numerator by the denominator and then multiply that result with 100

======================================================================

When you enter 8/25 into the above formula, you get (8/25)*100 which calculates to:

32%