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3 years ago

Simplify the expression xy + 4x – 3xy – x

Mathematics

1 answer:

Lisa [10]3 years ago

4 0

Answer:

-2xy+3x

Step-by-step explanation:

xy + 4x – 3xy – x: You need to collect like terms

-2xy+4x-x

-2xy+3x

Your final awnser would be -2xy+3x

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The price of a cup coffee was 2.40 yesterday. Today, the price fell to 2.15 find the percentage decrease. Round the answer to th

irakobra [83]

ANSWER

The percentage decrease is 10.4%.

EXPLANATION

To calculate percentage decrease, use the formula,

Percentage decrease

$= \frac{new \: price - old \: price}{old \: price} \times 100\%$

Yesterday the price of coffee was 2.40. This is the old price.

Today the price is 2.15. This is the new price.

$= \frac{2.15 - 2.40}{2.40} \times 100\%$

$= \frac{ - 0.25}{2.40} \times 100\%$

$= - 0. 10416667 \times 100\%$

$= - 10.416667\%$

To the nearest tenth, we have:

$- 10.4\%$

Therefore the percentage decrease is 10.4%.

8 0

3 years ago

Rose bought 7/20 of candy and 0.4 killogram of fruit which did she buy more of explain your answer

Juliette [100K]

Simplify 7/20 to decimals by dividing.

7 divided by 20= 0.35

Rose bought 0.35 kilograms of candy and 0.4 kilograms of fruit.

So, she bought more fruit, since 7/20 is less than 0.4.

I hope this helps :)

6 0

3 years ago

A square billboard has an area of 625 ft squared. What is the length of the side of the billboard?

goldenfox [79]

Answer:

figured it out is 25

Step-by-step explanation:

hope this helps:)

3 0

3 years ago

In most countries, gasoline is measured in liters. The volume of one liter is approximately one quart. There are four quarts in

In-s [12.5K]

Answer:

Europe 1.86 VS 0.79 US

Step-by-step explanation:

All you have to do is take US gass prices and simply divide it by four then compare.

6 0

3 years ago

Gannon has deposited $742 in a savings account that earns interest at a rate of 3.4% compounded monthly. What will the account b

marta [7]

Firstly, solve the effective annual interest (ieff) with the equation,

ieff = (1 + i/m)^m -1

where i is the interest rate and m is the number of times the interest is compounded in a year. In this problem, m is 12

Substituting the values,
ieff = (1 + 0.034/12)^12 - 1 =0.03453

To solve for the future (F) amount of the present investment (P),

F = P x (1 + ieff)^n

where n is number of years.

F = ($742) x (1 + 0.03453)^15

Thus, the answer is $1234.76.

7 0

3 years ago