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3 years ago

A package of 2 paintbrushes is on sale for 2.40. How much will 3 packages cost?

Mathematics

2 answers:

damaskus [11]3 years ago

6 0

Answer:

3.60

Step-by-step explanation:

2.40 divided by 2 is 1.20

1.20 times 3 is 3.60

alekssr [168]3 years ago

4 0

To find the unit price of each paintbrush, we simply divide 2.4 by 2 to find how much each individual paintbrush package costs.

2.4/2 = 1.2

Now, we can add 1.2 to 2.4 to find the price of 3 paintbrush packages.

1.2 + 2.4 = 3.6 (This is your answer.)

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An obtuse triangle has two angles 45 n 18 ,and a third unknown angle theta what's the value of the unknown angle

zlopas [31]

Answer:

An obtuse triangle has two angles 45 and 18. The value of the unknown angle is $117^{\circ}$

Solution:

Given that two angles of an obtuse triangle is 45 and 18.

Third angle is θ

We are asked to find the value of third unknown angle theta

According to angle sum property of triangle, sum of three angles of triangle is $180^{\circ}$

This means in our case sum of 45, 18 and θ should be $180^{\circ}$

$\begin{array}{l}{=>45+18+\theta=180} \\ {=>\theta=180-63=117^{\circ}}\end{array}$

Hence value of unknown third angle of an obtuse triangle is $117^{\circ}$

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Pencils cost 0.55 each. A pack of pencils cost $11. Which equation can be used to fined p the number of pencils in one pack

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