Using compatible numbers to estimate, which expression has a quotient of about 70?
O A. 3, 424 : 49
OB. 5,358 - 89
O C. 6,409 - 79
O D. 5,238 : 89

Using Compatible Numbers To Estimate, Which Expression Has A Quotient Of About 70?O A. 3, 424 : 49OB.

Answers

Answer 1

Answer:

A is the correct answer

Step-by-step explanation:

Hoped this helped :)

Answer 2

Answer: im positive its A me and my class did this at school

Step-by-step explanation:


Related Questions

pls help skakakakakakkaakakakakakakakakak​

Answers

Step-by-step explanation:

slope= -1/2

y intercept= 2

y=mx+b

m is the slope and b is the y intercept.

9514 1404 393

Answer:

slope: -1/2y-intercept: 2

Step-by-step explanation:

The slope-intercept form of the equation for a line is ...

  y = mx + b

where m represents the slope, and b represents the y-intercept. To find the slope and y-intercept of your equation, compare it to this form. Matching the patterns, you see that ...

  m = -1/2

  b = 2

The slope is -1/2; the y-intercept is 2.

__

The graph can be made by locating the y-intercept at y=2 on the y-axis. Then locate another point that is over 2 and down 1* from the y-intercept. The coordinates of that point will be (2, 1). Draw the line through those two points.

_____

* The slope is often described as "rise"/"run", that is, the vertical change (rise) divided by the corresponding horizontal change (run). A slope of -1/2 means the "rise" is -1 units (down 1) while the corresponding "run" is 2 units (to the right).

how do you right
0.125 as a whole number

Answers

Step-by-step explanation:

divide 1 by 0.1 to 5 and this will tell you what you need to multiply it by in order to make 0.125

1/0.125=8

thus : 8 *0.125 =1

1. Sebastian lived in France and Canada for a total of 21 months in order to learn French. He learned an average of
150 words per month when he lived in France, and an average of 210 words per month when he lived in Canada. In
total he leamed a total of 3,450 new words.
How long did Sebastian live in France? How Long did he Live in Canada?

Answers

Answer:

Step-by-step explanation:

He took 21 months in total.

150 per month in France and 210 per month in Canada

So, He learned in France in 10 months and canada in 11 months

Help ASAP
Find the sum (-3x + 7) + (2x - 5).

Answers

Answer:

-x + 2

Step-by-step explanation:

solve for y
2/3+y -1/9=7/9

Answers

Answer: y = 2/9

..............................

A certain virus infects one in every 300 people. A test used to detect the virus in a person is positive 90​% of the time when the person has the virus and ​15% of the time when the person does not have the virus.​ (This 15​% result is called a false positive​.) Let A be the event​ "the person is​ infected" and B be the event​ "the person tests​ positive." ​(a) Using​ Bayes' Theorem, when a person tests​ positive, determine the probability that the person is infected. ​(b) Using​ Bayes' Theorem, when a person tests​ negative, determine the probability that the person is not infected.

Answers

Answer:

a)  P[A/B] = 0,019     or     P[A/B] = 1,9 %

b)  P[A- /B-] = 0,9996       or    P[A- /B-] = 99,96 %

Step-by-step explanation:

Bayes Theorem :

P[A/B]  =  P(A) * P[B/A] / P(B)

The branches of events are as follows

Condition 1        real infection     1/300        and     not infection  299/300

Then

1.-    1/300      299/300

When the test is done   (virus present)  0,9 (+)    0,15 (-)

2.-   299/300

When the test is done  ( no virus )   0,15  (+)     0,85 (-)

Then:

P(A) = event person infected          P(B)  =  person test positive

a) P[A/B]  = P(A) * P[B/A] / P(B)

where   P(A)  = 1/300  =   0,0033   P[B/A] = 0,9    

Then P(A) * P[B/A] =  0,0033*0,9  =  0,00297

P(B)   is    ( 1/300 )*0,9  +  (299/300)*0,15

P(B) = 0,0033*0,9 + 0,9966*0,15    ⇒  P(B) = 0,1524

Finally

P[A/B] =  0,00297 /0,1524

P[A/B] = 0,019     or     P[A/B] = 1,9 %

b) Following sames steps:

P[A- /B-] = (299/300) * 0,85  / (299/300) * 0,85 + (1/300 * 0,1)

P[A- /B-] = 0,8471 /0,8474

P[A- /B-] = 0,9996       or    P[A- /B-] = 99,96 %

Elijah's father is 47. He is 17 years older than twice Elijah's age. How old is Elijah?​

Answers

Answer:

let Elijah age be a

Then

2*a + 17 =47

2a=47-17

2a=30

a=15

Step-by-step explanation:

what the person above me said!!!!


That’s correct !!!! BELIEVEEEE!!!!dhxhx

Which of the following results in the expression 0.22 ⋅ 86?

22 of 86%

22% of 86

86% of 0.22

0.86 of 22%

I need help plows pleasee!!

Answers

The answer is 22% of 86

Explanation:
0.22 is 22%
"of" means to multiply
86=86
22% of 86 hope that helped :))

the student council is selling a dozen donuts for $15. what is the unit cost?

Answers

Answer:

$1.25

Step-by-step explanation:

15 divided by a dozen (12) is 1.25

Have a great day!

Answer:

$1.25.

Step-by-step explanation:

15/12 = $1.25

which two layers in this model represent parts of the earth that are mostly iron and nickel ​

Answers

Answer:

inner and outer core are the ones that have iron and nickel

Step-by-step explanation:

The answer is inner and outer core

How would I go about solving this?

Answers

Answer:

is10 wififklwldlfosos

7.51 rounded to the nearest tenth ​

Answers

Answer:

7.5

Step-by-step explanation:

Answer:

7.5

Step-by-step explanation:

I am a senior so I am right

Please help being timed for test !

Last week's and this week's low temperatures are shown in the table below.
Low Temperatures for 5 Days This Week and Last Week
Low Temperatures
This Week (F)
4 10 6 9
Low Temperatures
Last Week (OF)
13 9 5 8
6
5
Which measures of center or variability are greater than 5 degrees? Select three choices
the mean of this week's temperatures
the mean of last week's temperatures
the range of this week's temperatures
the mean absolute deviation of this week's temperatures
the mean absolute deviation of last week's temperatures

Answers

Answer:

I think it B or C but hope I can help :)

Step-by-step explanation:

3. Which ordered pair is a solution of the equation y = x – 2? (1 point) (3, 1) (1, 3) (–1, 3) (3, –1)

Answers

The answer is (3,1)

which is the best estimate for the number of times the coin will land up 10 20 50 80 100 ​

Answers

The answer is 50 hopefully this helps

7 is 10 times the value of what number

Answers

Answer:

0.7

Step-by-step explanation:

7/10=0.7


PLEASE HELP!!! ILL GIVE BRANLIEST *EXTRA POINTS* dont skip :((

Answers

Answer: 2/5 = 40%

Step-by-step explanation: 2/5 5 (divided) by 25 = 40%

Answer:

40%

2/5 are shaded and if you divide 5 by 2 and add a decimal, and change it into a percent, you get 40%

which equation is equivalent to ax+b=c

Answers

Answer: b = c-ax

 

   hope this helps:)

Answer:

ax + b = c is Standard Form

Step-by-step explanation:

The price of one share of a company declined $2.50 per day for 4 days in a row. What is the overall change in the price of one share?

Answers

Answer:

$10

Step-by-step explanation:

$2.50 X 4

The line that passes through the points (3,0) and (-5,8) is
A.)Decreasing
B.)Increasing
C.)Horizontal
D.)Vertical

Answers

The answer is A.
If you were to graph the points, the slope connecting the two would be negative. Meaning the line is decreasing.

10.2 is 21.25% of what number?​

Answers

Answer: 48

Step-by-step explanation: Using proportions

48 is the number whose 21.5 percent is 10.2 .

What is percentage?

A percentage is a number or ratio that can be expressed as a fraction of 100.

How to convert a percentage into a number?

Divide the given percentage by hundred to convert it into a number.

Let x be a number whose 21.5% is 10.2.

Therefore,

[tex]\frac{21.25}{100} (x) = 10.2[/tex]

⇒ [tex]21.25x = 10.2(100)[/tex]

⇒[tex]21.25x = 1020[/tex]

⇒[tex]x = \frac{1020}{21.25}[/tex]

⇒[tex]x = 48[/tex]

Hence, 48 is the number whose 21.5 percent is 10.2.

Find out more about percentage here:

https://brainly.com/question/13450942

#SPJ2

what is 3 3/8 times 4 1/3?

A. 7 1/8
B. 12 1/8
C. 14 3/8
D. 14 5/8

Answers

Answer:

14.625

Step-by-step explanation:

D I think that is The answer

Solve by Elimination:
4x + 8y = 20
-4x + 2y = 10
(-1,3)
(3,4)
(3,-1)
(4,3)

Answers

Answer:

(-1,3)

Step-by-step explanation:

Elimination makes solving for the system of equations much easier if it is the faster route. In this case, it is already done for you, and no multiplication is required.

First, we want to eliminate the x values completely because they are opposites and therefore cancel out. Next, you want to add the y-values and sum (20 and 10) so that you get the new equation [tex]10y=30[/tex]. To isolate you need to divide by 10 on each side which will give you [tex]y=3[/tex].

Now that you have your y-value, you can plug in your value to either of the equations and find what x is. I will use the equation 4x + 8y = 20 to solve for x. We first want to substitute in our y-value so that we get [tex]4x+8(3)=20[/tex] which is simplified to [tex]4x+24=20[/tex] now subtract by 24 on both sides to get 4x by itself to get [tex]4x=-4[/tex]. Lastly, isolate x by dividing by 4 on each side to get [tex]x=-1[/tex]

Bill hikes 8 miles in 3 hours. At this rate. how many miles will he hike after 2 hours?

Answers

Answer:

5 1/3 miles

Step-by-step explanation:

We can use a ratio to solve

8 miles      x miles

------------ = --------

3 hours         2 hours

Using cross products

8*2 = 3x

16 = 3x

Divide by 3

16/3 = 3x/3

5 1/3 miles =x

Answer: [tex]5 \frac{1}{3}[/tex] miles

For the rate of 8 miles in 3 hours, you divide.

For the rate of - miles in 2 hours, multiply.

8 x 2 = 3x

16 = 3x

Now, we have to divide by 3x by 3.

3x divided by 3 = 5 1/3

Answer = 5 1/3

WILL GIVE BRAINLYIST!!!
Apples are ____% of the total number of fruits.

Answers

Answer:

34%

Step-by-step explanation:

Because out of all ripe fruits is 85% of 5692000.

What is 3(4p - 2) + 2 (5p + 2)

Answers

Answer:

p=1

Step-by-step explanation:

3(4p-2) +2(5p+2)

12p-6 + 10p + 4

12p-10p= 2p

6-4=2

2/2=1

Write 27 as a product of primes.
Use index notation where appropriate.

Answers

27 is a composite number. 27 = 1 x 27, or 3 x 9. Factors of 27: 1, 3, 9, 27. Prime factorization: 27 = 3 x 3 x 3, which can also be written 27 = 3³.

Answer:

3 x 3 x 3 = 3^3

Step-by-step explanation:

27 as a product of it's primes = 3 x 3 x 3 In index notation= 3^3

The model below is used to represent the area of a
square with a side length of /64 units.

Answers

8. Hope this helpsssss

Answer:

8

Step-by-step explanation:

Because you can count the squares on the side or you can just do the square root of 64.

Why is this number not in scientific notation?

36.5 x 10 6

Answers

If that is supposed to be 10 to the power of 6 I believe it’s 36500000

What is 15% of 90?
O 13.5
O 6
O 600

Answers

Answer:

13.5

Step-by-step explanation:

Answer:

13.5

Step-by-step explanation:

What number is 15% of 90?

The calculated percentage of the number 15% of 90 would be 13.5.

If this helps please mark brainliest.

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