2 years ago

Which expression is equivalent to (3.1x−2.4y+1.9)+(2.2x−1.4y−3.4)?

Mathematics

1 answer:

emmainna [20.7K]2 years ago

6 0

Answer:

5.3x - 3.8y - 1.5

You might be interested in

Claire buys an item with a normal price of $24 but save six dollars by using a coupon what percentage off is this coupon

aalyn [17]

Answer:

20% off

Step-by-step explanation:

If the initial price was $30, then 10 percent of 30 is 3. If you want to take away 6 dollars, then that's double the percentage and the discount would be 20%.

8 0

2 years ago

Read 2 more answers

A certain forest covers an area of 2100 km^2. Suppose that each year this area decreases by 5.25%. What will the area be after 6

Neko [114]

Answer:

The area after 6 years is $1519.49km^2$

Step-by-step explanation:

Given

$a = 2100$ --- Initial Value

$r = 5.25\%$ --- Rate

Required

Determine the area after 6 years

Because the area reduces,, the following formula will be used to solve the question.

$y = a*(1 - r)^t$

Here

$t = 6$

So, we have:

$y = 2100*(1 - 5.25\%)^6$

Convert percentage to decimal

$y = 2100*(1 - 0.0525)^6$

$y = 2100*(0.9475)^6$

$y = 1519.47866516$

$y = 1519.49$ -- approximated

The area after 6 years is $1519.49km^2$

4 0

2 years ago

In the example,-38+(-24)will be negative before finding the sum?

erastova [34]

Answer:

-62

Step-by-step explanation:

7 0

2 years ago

Lily solve the equation 3x-10= -3x+8. The explanation of her process is shown. Select the text that shows an error in her proces

MrMuchimi

Answer:sbutaraction property of equality

Step-by-step explanation:

4 0

3 years ago

A slope of -3 passing through the points (6,-14)

AysviL [449]

The answer is y=-3x+4

3 0

2 years ago