All categories

3 years ago

Change 2 21/9 to an improper fraction

Mathematics

2 answers:

ivanzaharov [21]3 years ago

8 0

Answer: 13/3

Step-by-step explanation: TO turn a mixed number into an improper fraction, the best way is to multiply the denominator of the fraction by the whole number, then add the product to the numerator, then use that as the numerator of your new improper fraction, keeping the denominator the same.

>2 21/9

> 9*2 +21 =39

> 39/9

>13/3

levacccp [35]3 years ago

4 0

U have to multiply 2 times 9 and you’ll get 18, but then you have to add 18 and 21 and you’ll get 39, but you keep 9 as the denominator. So your answer would be 39/9.

You might be interested in

Cot y, if csc y =-10/3 and cos y< 0

fredd [130]

$\csc y=-\dfrac{10}3\implies\sin y=-\dfrac3{10}$

$\cos^2y=1-\sin^2y\implies \cos y=\pm\sqrt{1-\dfrac9{100}}=\pm\dfrac{\sqrt{91}}{10}$

You're told that $\cos y$ , so omit the positive root.

$\cot y=\dfrac{\cos y}{\sin y}=\dfrac{-\frac{\sqrt{91}}{10}}{-\frac3{10}}=\dfrac{\sqrt{91}}3$

7 0

3 years ago

the room charge for a hotel is 230$ each day. the estevez family spends 4 days on vacation at the hotel . at the end of their st

DochEvi [55]

10% of 230 is 23 so
230
+23 =
253
hope i helped:)

3 0

3 years ago

Read 2 more answers

Please solve this problem and show your work !! Please answer this !!

anastassius [24]

Answer:

-18k^2+72kx+54x^2

Step-by-step explanation:

Sorry i don't have the step-by-step but that's the answer

4 0

3 years ago

Sharon drops a rubber ball from a height of 48 feet. Every bounce sends the ball half as high as it was before.What is the total

Viefleur [7K]

First hit it travels 48 ft
Second hit it travels 24 + 24 ft
third hit 12 + 12
4th hit 6 + 6 ft

Total = 48 + 48 + 24 + 12 = 132 ft Answer

8 0

2 years ago

What is 6a<42 and a + 4>7

ozzi

Answer:

let's start with

6a<42

a<7

Next we simplify

a+4>7

a>7-4

a>3

Step-by-step explanation:

Answer

3<a<7

6 0

3 years ago