3 years ago

Please tell correct answers

Mathematics

1 answer:

gregori [183]3 years ago

7 0

Answer:correct answers

Step-by-step explanation:

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Unit rate 5 breaks in 8 hours

jasenka [17]

.625 I think but sorry if not

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3 years ago

What is the common difference in the following arithmetic sequence

tensa zangetsu [6.8K]

Answer: 11

Step-by-step explanation: As n goes up, ^an goes up 11 every time. If it was negative, the number would be going down as n went up.

3 0

3 years ago

The diameter of the circle above is 20 cm. What is the circumference of the circle? (Use = 3.14.) A. 628 cm B. 314 cm C. 62.8 cm

dolphi86 [110]

To find the circumference, multiply the diameter by PI.

20 cm x 3.14 = 62.8 cm.

The answer is C.

8 0

4 years ago

Six men completed a task in 24 hrs and 48 min. How long, in hours and minutes, would it take four men to complete the same task?

igor_vitrenko [27]

Answer:

It would take 4 men 37 hrs and 12 mins to complete the same task.

step-by-step explanation:

Let X be the time the four men would use to complete the task.

From the question, 6 men completed a task in 24 hrs and 48 mins

But

$24 \: hrs \: 48 \: mins = 24(60mins) + 48 \: mins=1488 \: mins$

Using ratio and proportion

$6 \: men:1488 \: mins$

$4 men:x\:mins$

if more, less divides and if less, more divides.

4 men required more time to complete the task

Hence:

$x = \frac{6}{4} \times 1488 \: mins$

$x = 2232 \: mins$

x = 37 hrs 12 mins

5 0

3 years ago

What am I suppose to do here??

Alex777 [14]

Answer:

Step-by-step explanation:

Hey There!

To solve this problem we have to combine like terms

$7x^3-6x^3=x^3\\6x^2-8x^2=-2x^2\\-5x+10x=5x\\5-7=-2$

So our answer would be

$x^3-2x^2+5x-2$ (b)

5 0

3 years ago