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Sedaia [141]
3 years ago
8

Laura ordered a set of blue and black pencils. she received 110 pencils, 20% of them were black. About how many blue pencils did

she receive?
Mathematics
1 answer:
Andrei [34K]3 years ago
8 0

If 20% of the pencils were black, then 80 % percent of the pencils were blue.  (together they must equal 100)

110 *.80 = 88

88 pencils are blue

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Solve the attached question<br><br>#yohaniJaman<br><br><br><br>​
aksik [14]

HETY is a parallelogram.

HT and EY are diagonals. We know that diagonals divides the parallelogram into two equal parts.

So ar(HET) = ar(HTY)

And, ar(HEY) = ar(EYT) now, in AHET, diagonal EY bisects the line segment HT and also the AHET,

∴ar(AHOE) = ar(AEOT)

Similarly in AETY

ar(ΔΕΟΤ) = ar(ΔΤΟΥ)

And in AHTY,

ar(ATOY) = ar(AHOY)

That means diagonals in parallelogram divides it into four equal parts.

Hence Proofed.

5 0
3 years ago
What is the greatest common factor of 18 and 3?
-Dominant- [34]
3 is your greatest 

3/3 = 1

18/3 = 6


hope this helps
8 0
3 years ago
Mathematics Slope Mh
masya89 [10]

Answer:

y = - 2x - 6

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (- 2, - 2) and (x₂, y₂ ) = (1, - 8)

m = \frac{-8+2}{1+2} = \frac{-6}{3} = - 2, thus

y = - 2x + c ← is the partial equation

To find c substitute either of the 2 points into the partial equation

Using (- 2, - 2), then

- 2 = 4 + c ⇒ c = - 2 - 4 = - 6

y = - 2x - 6 ← equation of line

8 0
3 years ago
a rectangular room is 7 feet wide. it is twice as long as it is wide. what is the perimeter of the room?
Fiesta28 [93]
42 because it is all of the sides have to be added up for the perimeter so the formula would be 14+14+7+7.

4 0
3 years ago
Help <br> Please help me
Salsk061 [2.6K]

Answer:

I think that the answer's B

6 0
3 years ago
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