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3 years ago

Solve -3x + 2y = 5 for y

Mathematics

2 answers:

Anna11 [10]3 years ago

5 0

Answer:

Step-by-step explanation:

Ronch [10]3 years ago

4 0

Answer:

y=2.5

Step-by-step explanation:

first you add -3x to both sides so you get 5-3x and then divide that by 2 to get Y by itself so now you have 5/2 - 3/2x and when you put in the equation y=5/2 - 3/2x in DESMOS, the answer is 2.5

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What is the range of the set of data : 13, 16, 10, 15, 6, 6

aniked [119]

The range is the difference between the largest and smallest number. So for those numbers the lowest value is 6 and the highest is 16. So 16 - 6 = 10

So the range is 10

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3 years ago

The price of a computer component is decreasing at a rate of 15% per year. State whether this decrease is linear or exponential

Margaret [11]

Answer:

Since the price is given by an exponential function, the decline in price is exponential.

The component will cost $36.8475 in three years.

Step-by-step explanation:

The equation for the price of a component has the following format:

$P(t) = P(0)(1-r)^{t}$

In which P(t) is the price after t years, P(0) is the initial price, and r is the rate that the price decreases.

Since the price is given by an exponential function, the decline in price is exponential.

The price of a computer component is decreasing at a rate of 15% per year.

This means that $r = 0.15$

Component costs $60 today

So P(0) = 60. Then

$P(t) = P(0)(1-r)^{t}$

$P(t) = 60(1-0.15)^{t}$

$P(t) = 60(0.85)^{t}$

What will it cost in three years?

This is P(3).

$P(t) = 60(0.85)^{t}$

$P(3) = 60(0.85)^{3} = 36.8475$

The component will cost $36.8475 in three years.

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3 years ago

Which is the correct stem-and-leaf plot for the data set.

jasenka [17]

Answer:

I just FINISHED THESE QUESTIONS

Step-by-step explanation:

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2 years ago

A coin is tossed 13 times how many different outcomes are possible

makvit [3.9K]

Since the toss can either be heads or tails and only one of these can land at a time the answer is 13

5 0

3 years ago

Read 2 more answers

3x^2-4x+1, match the following

il63 [147K]

Answer:

x = variable

3 = coefficient

1 = constant

3x^2-4x+1 = algebraic expression

2 = degree

Step-by-step explanation:

variables are typically the letters in equations (usually x and y)

coefficients are the numbers attached to the variables

constants don't have any variables attached

algebraic expressions are the full expression

degrees are the small numbers in the top right corners on either constants, variables or coefficients

Hope this helps!

8 0

3 years ago