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3 years ago

What is 5x – 8x + 2 + 5=

Mathematics

2 answers:

Ann [662]3 years ago

8 0

Answer:

-3x+7

Step-by-step explanation:

(5x-8x)+(2+5) Like terms together

(-3)x+7 Combine within each group

-3x+7 Simplify the signs in the product

-3x+7 Is your answer

Hope that helps :)

nikklg [1K]3 years ago

3 0

Answer: -3x+7

Step-by-step explanation: Good luck! :D

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Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels at a rate of 65

koban [17]

Answer:

time = 1 hour 24 minutes

Step-by-step explanation:

Given that:

Eastbound train travels at a rate of 65 miles per hour

Westbound train travels at a rate of 85 miles per hour

So speed = 65 + 85 = 150 miles per hour

Total distance = 210 miles

We have to find the time

We know that

Distance = time * speed

time = distance / speed

time = 210/150

time = 1.4 hours

Or it can be written as:

time = 1 hour 24 minutes

i hope it will help you!

6 0

3 years ago

If f(x) = [x] - 5, what is f(8.6)? a) 3 b) 4 c) 8 d) 9

NeTakaya

A is the answer to this question because if you plug in 8.6-5 it is approximately 3

6 0

3 years ago

Read 2 more answers

How many three-letter sequences are possible that use the letters q,u,a,k,e,s at most once each?

Angelina_Jolie [31]

6P3 => 6!/(6-3)! = 120.

I can't very well explain, but I hope it works.

8 0

3 years ago

HELPPPP Solve for x using the figure to the right.

Maurinko [17]

Answer:

x = 20 units

Step-by-step explanation:

By geometric mean theorem:

${x} = \sqrt{40 \times 10} \\ \\ \implies{x} = \sqrt{400} \\ \\ \implies{x} = 20 \: units \\ \\$

7 0

2 years ago

Mashcka [7]

To solve this we are going to use the formula for compounded interest: $A=P(1+ \frac{r}{n})^{nt}$
where
$A$ is the final amount after $t$ years
$P$ is the initial amount
$r$ is the interest rate in decimal form
$n$ is the number of times the interest is compounded per year
$t$ is the time in years

We know for our problem that $P=1380$ , $r= \frac{5}{100} =0.05$ , and $t=3$ . Since the interest is compounded daily, it is compounded 365 times in year; therefore, $n=365$ . Lets replace those values in our formula to find $A$ :
$A=P(1+ \frac{r}{n})^{nt}$
$A=1380(1+ \frac{0.05}{365})^{(365)(3)}$
$A=1603.31$

We can conclude the amount in Diane's after 3 years will be $1,603.31

4 0

3 years ago