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Katarina [22]
3 years ago
5

The cost for three copies of a book is $38.85. Estimate the cost for one book. Do you think your estimate is higher or lower? Ex

plain.
Mathematics
1 answer:
erica [24]3 years ago
6 0
If you round 38.85 to $39 then divide by 3 you'd get $13 each. This would be a little high since we rounded the 38.85 UP
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Hey guys please help find the area
V125BC [204]

Answer:

70.15 ft²

Step-by-step explanation:

The figure consists of two adjacent equilateral triangles (all angles are 60 degrees and all outer edges are 9 ft).

If we focus on one of these equilateral triangles, we can get the final area by multiplying the area of that one triangle by 2.

The formula for the area of a triangle is (1/2)(base)(height).  Remembering to multiply this by 2, we get

area of figure = (base)(height)

                                             √3

                       = (9 ft)(9 ft)(--------) = (81 ft²)(1.732) = 70.15 ft²

                                               2

4 0
3 years ago
I have a question that says " jada has read 3/5 of a book. She has read 75 pages so far. How many pages are in the whole book?"
jok3333 [9.3K]

Answer and Step-by-step explanation:

To solve, we would multiply by the reciprocal of the portion Jada has read, and multiply that number to 75.

The reciprocal means the the value, but flipped, so \frac{3}{5} will become \frac{5}{3}.

Now we do 75 times \frac{5}{3}/

\frac{75 * 5}{3} \\\\\\\\\frac{375}{3} \\\\\\\\125

So, there are 125 total pages in the book.

<em><u>#teamtrees #PAW (Plant And Water)</u></em>

3 0
3 years ago
Sally went 3.5 miles per hour on a treadmill for 5 hours. She was sore and decided to take 400 mg of Advil. The half portion sta
xenn [34]

Answer:

8 hours

Step-by-step explanation:

it says: The half portion stays in her body for 8 hours.

8 0
4 years ago
The floor of the school art closet is be tiled. The closet shaped like a parallelogram. The parallelogram has a base of 16.5 fee
son4ous [18]
The area of the parallelogram is given by:
 A = b * h
 Where,
 b: base
 h: height
 Substituting values we have:
 A = (16.5) * (6)
 A = 99 feet ^ 2
 The number of packages will be:
 N = 99/5
 N = 19.8
 Rounding:
 N = 20
 Answer:
 
It will be needed 20 packages of tile to tile the music room floor
3 0
3 years ago
What if i had 2 ducks and add 4 more​
Travka [436]

Answer:

You would have 6 ducks

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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