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bonufazy [111]
3 years ago
7

Answer the following question. (need to show work) 20/2-10+3*15=

Mathematics
1 answer:
slava [35]3 years ago
3 0

Answer:

45.

Step-by-step explanation:

To solve this equation, we must use PEMDAS...

The operations listed first must be solved first before we can continue.

Parentheses

Exponents

Multiplication

Division

Addition

Subtraction

Using this, we find that we must complete the multiplication and division before we add or subtract.

20 / 2 - 10 + 3 * 15

= (20 / 2) - 10 + (3 * 15)

= 10 - 10 + 45

= 0 + 45

= 45

Hope this helps!

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3/2+(-6/5) what does this equal? Please help
34kurt

Answer:

3/10

Step-by-step explanation:

The first thing that you need to do is to find the common denominator of the two fractions. The least common multiple of 2 and 5 is 10, so we can express the new equation as 15/10-12/10=3/10. Hope this helps!

8 0
3 years ago
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Trigonometry<br> Reference Angles and Triangles<br> The value of Sin 440* is equal to?
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Answer:

0.985

Step-by-step explanation:

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On a​ map, 1 inch equals 15 miles. Two cities are 2 inches apart on the map. What is the actual distance between the​ cities?
BabaBlast [244]
Since the scale is 15 miles per inch all you need to do is multiply.
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4 0
3 years ago
Please help! Need to confirm my answers.
MariettaO [177]

Answer:

Step-by-step explanation:

Average rate of change is Δy / Δx.

For f(x):

[ f(1) - f(0) ] / (1 - 0)

(1 - 3) / (1 - 0)

-2

For g(x):

[ g(1) - g(0) ] / (1 - 0)

(4 - 3) / (1 - 0)

1

6 0
3 years ago
A new online music service has a collection of 1,500 songs. It expects to triple the number of songs each year for the next few
Rzqust [24]

Answer: y = (3^(x-1))*1500

Step-by-step explanation:

We want the relationship

y = f(x)

where y is the number of songs, and x is the number of years.

We know that in the first year, x = 1, the site has 1,500 songs.

The next year, x = 2, the number of songs is tripled, then we will have:

1,500*3 = 4500 songs.

The next year, x = 3, we will have: 3*(3*1500) = (3^2)*1500.

when x = 4, the number is tripled again:

3*(3^2)*1500 = (3^3)*1500

We already can see the pattern, for the year x, the site will have:

y = (3^(x-1))*1500 songs.

This is the equation we are looking for.

7 0
3 years ago
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