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3 years ago

7

A box contains 421 books. If your teacher orders 19 boxes of books, about how many books will arrive? Use estimation to find you

r answer.

2 answers:

koban [17]3 years ago

8 0

The answer is 8,000 because 19 times 421 equals 7,888 and that estimated is 8,000

elena-14-01-66 [18.8K]3 years ago

3 0

19 * 421 = 7,999 books will arrive

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$270 are shared in the ratio 4:5. what is the greater share?

jarptica [38.1K]

Answer:

$150

Step-by-step explanation:

5/(4+5) * 270 = 150

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3 years ago

What is the equation of the line of the best fit for the following data? Round to the slope and y-intercept of the line to three

BigorU [14]

Answer:

D. $y=-0.927x+13.634$

Step-by-step explanation:

We graph the points on the graph. The graph is attached.

Let us take two points (1, 14) and (15, 1), and calculate the slope $m$ between them <em>(we choose these points because the line passing through them will be the best fit for all points) </em>

$m=\frac{14-1}{1-15} =\frac{13}{-14} =-0.9286$

Thus we have the equation

$y=-0.9286x+b$

Let us now calculate $b$ from the point $(1,14)$

$14=-0.9286(1)+b$

$b=14.9286$

So the equation we get is

$y=-0.9286x+14.9286$

Let us now turn to the choices given and see which choice is closest to our equation: we see that choice D. $y=-0.927x+13.634$ is the closest one, so we pick it.

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3 years ago

2 2/3 + 3 3/4<br> This Is Fraction

dangina [55]

Answer:

6 5/12

Step-by-step explanation:

2 2/3 as a mixed number is 8/3

3 3/4 as a mixed number is 15/4

To make the 2 fractions have a common denominator, they become:

32/12 and 45/12

to add them up it will be: 77/12 which can be written as 6 5/12

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3 years ago

Read 2 more answers

5. Which has at least 1 set of parallel sides but is not a parallelogram? Select all

viktelen [127]

Answer:

E

Step-by-step explanation:

It has only two parallel sides

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3 years ago

1. If $18,000 is invested at 6% compounded monthly, what is the amount after 7 years?

stira [4]

P = 18,000
R=6%
T=7 years

A = P ( 1 + 1 divided by r) raised to n
Substitute the numbers an u will fin the answer

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3 years ago