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3 years ago

What are supplemenatry angles

Mathematics

1 answer:

telo118 [61]3 years ago

3 0

Answer:

Supplementary angles are two angles that add up to 180 degrees.

Step-by-step explanation:

They angles don't have to be next to each other to be supplementary, just so long as the total is 180 degrees. Examples: • 60° and 120° are supplementary angles.

<em>Hope I answered your question:)</em>

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Paco buys a total of 15 pencils and markers for $ 11.15. Each pencil costs $ 0.30. Each marker costs $ 1.25

inessss [21]

Answer: Paco bought 7 markers and 8 pencils.

Step-by-step explanation:

Let's define the variables:

P = number of pencils that Paco bought

M = number of markers that Paco bought.

We know that P + M = 15.

We also know that each pencil costs $0.30 and each marker costs $1.25, and the total price for the whole purchase is $11.15

Then:

P*$0.30 + M*$1.25 = $11.15

Then we have the system of equations:

P + M = 15

P*$0.30 + M*$1.25 = $11.15

To solve this, we can start by isolating one of the variables in the first equation, let's isolate P.

P = 15 - M

Now we can replace this in the second equation to get:

(15 - M)*$0.30 + M*$1.25 = $11.15

$4.50 - M*$0.30 + M*$1.25 = $11.15

$4.50 + M*$0.95 = $11.15

M*$0.95 = $11.15 - $4.50 = $6.65

M = $6.65/$0.95 = 7

Then paco bough 7 markers, and we can find the number of pencisl by the equation:

P + M = 15

P = 15 - M = 15 - 7 = 8

Then Paco bought 7 markers and 8 pencils.

4 0

3 years ago

Write as a percent and a fraction 0.81

Marina86 [1]

81/100 is the fraction 81 is the percent

8 0

3 years ago

Read 2 more answers

Can you guys help me with those questions? Or if correct

igomit [66]

Answer:

Step-by-step explanation:

i think it is correct

8 0

3 years ago

Use the following problem to answer questions 7 and 8. Carrie draws 5 cards simultaneously from a well-shuffled deck of 52 playi

Alexxx [7]

Answer:

The probability that she chooses 3 spades and 2 cards that are not spades is

0.08154

Step-by-step explanation:

52 deck cards have 13 spades , 13 clubs , 13 diamond, 13 hearts

spades = 13

Non spades = 39

Selecting 3 spades = 13C3 (Using combination)

selecting 2 spades = 39C2

in total 5 cards are drawn = 52C5

Probability of drawing 5 cards (3spades+2 non spades)

= $\frac{ 13C3*39C2}{52C5}$ = 0.08154

8 0

3 years ago

Find the volume of the figure below. 5 cm 11 cm 66 cm 82.5 cm 132 cm 165 cm

stealth61 [152]

Answer:

A) 66cm³

Step-by-step explanation:

Using the Pythagorean Theorem, the base of the triangle is 4. The area of a triangle is 1/2 base times height. Then you multiply times 11 to get the volume.

1/2(3)(4)(11)=66

5 0

3 years ago