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2 years ago

A change purse contains a total of 35 nickels and dimes. The total value of the coins is $2.25

Mathematics

1 answer:

Montano1993 [528]2 years ago

6 0

Answer: 25 nickels

10 dimes

Step-by-step explanation:

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A rectangular board has an area of 648 square centimeters. The triangular part of the board has an area of 162 square centimeter

maksim [4K]

Answer:

25%.

Step-by-step explanation:

Let E be the event that the dart lands inside the triangle.

We have been given that a rectangular board has an area of 648 square centimeters. The triangular part of the board has an area of 162 square centimeters.

We know that probability of an event represents the chance that an event will happen.

$\text{Probability}=\frac{\text{Favorable no. of events}}{\text{Total number of possible outcomes}}$

$\text{Probability that dart lands inside the triangle}=\frac{\text{Area of triangle}}{\text{Area of rectangle}}$

$\text{Probability that dart lands inside the triangle}=\frac{162}{648}$

$\text{Probability that dart lands inside the triangle}=0.25$

Convert into percentage:

$0.25\times 100\%=25\%$

Therefore, the probability that dart lands inside the triangle is 25%.

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3 years ago

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The following triangles are similar by SAS~

svet-max [94.6K]

Step-by-step explanation:

sides:91/12=42/26

angles:LMN=LBA and MNL=BAL

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3 years ago

I need help on this and what the answer

34kurt

Answer:

Step-by-step explanation:

6 0

3 years ago

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What is the angle of rotation of this regular octagon? what is the measure of an interior angle?

MrRissso [65]

Second question:
sum of all the interior angle 180*(8-2)=1080 degree
sum of one interior angle 1080/8=135 degree

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3 years ago

It takes a printer 2 1/2 min to print 24 black-and-white pages and 4 color pages. It takes the same printer 3 1/4 min to print 3

Paul [167]

Multiply the first equation by 1.5, to get:
$(1.5)(24b + 4c) = 1.5(2.5)$
$36b + 6c = 3.75$
Subtract the second equation from this:
$6b = 1/2$
$b = 1/12$
Substituting into the first equation:
$24b + 4c = 2.5$
$24*(1/12) + 4c = 2.5$
$2 + 4c = 2.5$
$4c = 0.5$
$c = 1/8$
Therefore, it takes 1/12 minute to print a black-and-white page, and 1/8 minute to print a colored page.

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3 years ago

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