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2 years ago

How to change a number ten by rounding

Mathematics

2 answers:

klio [65]2 years ago

7 0

Can change no 10 and 10 is rounded no

Llana [10]2 years ago

4 0

10 is already rounded

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A snail sets out on a 3 3/5 -mile journey, traveling at a speed of 2/65 miles per hour. a. How many hours will the journey take?

fiasKO [112]

Answer:a)117 hours b)4.875days.

Step-by-step explanation:

Using the formula

Speed =Distance / Time

Given Distance = 3 3/5 -mile

and Speed=2/65 miles per hour.

Time =Distance / Speed

Time = (3 3/5)/(2/65)

Time =18/5÷2/65

Time =18/5 x 65/2 =117 hours

Now 24 hours =1 day

therefore 117hours =(117hours x 1 day )/ 24 =4.875days.

3 0

2 years ago

Simplify. 5 - {-(-2)} A)-3 B) 3 C)-7 D) 7

Fed [463]

5 - {-(-2)}
5 - {+2} (negative + negative = positive)
5 - 2 (negative + positive = negative)
3

5 0

2 years ago

Complete this sentence 10x^3a+6xa^2=2xa(______)

alexira [117]

Answer: 5x² + 3a

Explanation:
$10x^3a+6xa^2=2xa(5x^2 + 3a)$

3 0

3 years ago

Read 2 more answers

Help help help it is simple one

algol [13]

Answer:

$3^{ -x+3}$

Step-by-step explanation:

We need to simplify out the given exponential expression . The given expression to us is ,

$\rm\implies \dfrac{\dfrac{1}{3}}{3^{x-4}}$

We can use the Law of Exponents to simplify the given expression . Recall that ,

$\rm\implies \red{\dfrac{a^m}{a^n}= a^{m-n}}$

Note that , we can write ,

$\rm\implies \dfrac{1}{3}= 3^{-1}$

Therefore our expression becomes ,

$\rm\implies \dfrac{ 3^{-1}}{3^{x-4}}$

Simpify using the Law of Exponents ,

$\rm\implies 3^{ -1 - ( x - 4 )}$

Open the brackets in exponent ,

$\rm\implies 3^{ -1 - x +4 }$

Simplify to get final expression ,

$\rm\implies \boxed{\quad \blue{ 3^{-x+3} \quad}}$

5 0

2 years ago

Of the 50 tables in a restaurant, 40% seat 2 people. The remaining tables seat 4 people. How many seats are there in the restaur

VikaD [51]

Okay. 40% of 50 is 20. 2 * 20 is 40. The other 30 tables seat 4 people. 4 * 30 is 120. 120 + 40 is 160. There are 160 seats in the restaurant.

4 0

2 years ago