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3 years ago

How to divid decimals by a whole number

1 answer:

3 0

1. Place the decimal point in the quotient directly
above the decimal point in the dividend.
2. Divide the same way you would divide with
whole numbers.
3. Divide until there is no remainder, or until the
quotient begins to repeat in a pattern.

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The perimeter of this triangle is 25 units. An angle bisector divides one side of the triangle into lengths of 2 and 3. Find the

grin007 [14]

Answer:

8 and 12

Step-by-step explanation:

Sides on one side of the angle bisector are proportional to those on the other side. In the attached figure, that means

AC/AB = CD/BD = 2/3

The perimeter is the sum of the side lengths, so is ...

25 = AB + BC + AC

25 = AB + 5 + (2/3)AB . . . . . . substituting AC = 2/3·AB. BC = 2+3 = 5.

20 = 5/3·AB

12 = AB

AC = 2/3·12 = 8

_____

<em>Alternate solution</em>

The sum of ratio units is 2+3 = 5, so each one must stand for 25/5 = 5 units of length.

That is, the total of lengths on one side of the angle bisector (AC+CD) is 2·5 = 10 units, and the total of lengths on the other side (AB+BD) is 3·5 = 15 units. Since 2 of the 10 units are in the segment being divided (CD), the other 8 must be in that side of the triangle (AC).

Likewise, 3 of the 15 units are in the segment being divided (BD), so the other 12 units are in that side of the triangle (AB).

The remaining sides of the triangle are AB=12 and AC=8.

7 0

4 years ago

Don’t understand could I get some help pls :)

Lemur [1.5K]

$\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}$

Actually Welcome to the concept of Parallel lines.

We must first understand that, Parallel Lines always have a same Slope, hence the 'm' value in y=mx+c equation will same, here it is '1/2' in the above equation,

so the points here are (-6,-17)

==>

(y-(-17)) = m(x-(-6))

==>

here m = 1/2 ,hence

y+17 = 1/2(x+6)

==> y+17 = 1/2(x) + 3

==> y = 1/2(x) + 3 - 17

==> y = 1/2(x) - 14

hence the Option 4.) is the correct answer!!

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3 years ago

The figure below shows a shaded region and a non-shaded region. Angles in the figure that appear to be right angles are right an

polet [3.4K]

Answer:

Step-by-step explanatioihhin:

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3 years ago

Read 2 more answers

A moving company charges a base fee of $280 for a move plus $50 per hour of time. If H represents the number of hours of time, a

Gekata [30.6K]

C = 280m + 50H
…………..

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3 years ago

What is the value of the expression 2 + 4x (3 + 7) *

MAXImum [283]

Answer:

20=4x

Step-by-step explanation:

if finding x divide by 4 and x=5

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3 years ago