Ask question

Ask question

All categories

3 years ago

7

Convert 11.42424242 … to a rational expression in the form of a over b, where b ≠ 0.

2 answers:

Setler79 [48]3 years ago

8 0

Mathmate has given you a correct answer -- in fact better than your choices. If you can reduce a fraction, you really should. 11 42/99 is correct and you should pick C. But the better answer would have been 11 14/33 because in the fractional form this is the reduced amount. As a mixed fraction that's as low as it will go.

Perhaps 11 42/99 is good teaching but 11 14/33 is good math.

Pavlova-9 [17]3 years ago

7 0

x=11.4242....

100x=1142.4242....

100x-x = 99x = 1131

x=1131/99 = 11 42/99 (unreduced) = 11 14/33 (reduced fraction)

You might be interested in

Peanuts are $2 a pound and raisins are $4 a pound. Julian bought a 7 pound mixture of peanuts and raisins for $20. How many poun

Elena-2011 [213]

Answer:

there was 3 pounds of raisins and 4 pounds peanuts.

Step-by-step explanation:

4 times 3 =12 and 2 times 4 = 8. 3+4=7 so 7 pounds. 12+8=20 so $20.

4 0

3 years ago

Use the model below to calculate 9 ÷ 1 3 please help.<br>9/3<br>3/9<br>13 1/2<br>27

ki77a [65]

Answer:

9/13

Step-by-step explanation:

4 0

3 years ago

The circumference of a circle is 22 cm.

valkas [14]

$\bf \: Circumference \: of \: a \: circle = 2\pi \: r$

$\implies22 = 2 \times \dfrac{22}{7} r$

$\implies22 = \dfrac{44}{7} \times r$

$\implies \: r = \dfrac{22 \times 7}{44}$

$\implies \boxed{ r = \dfrac{7}{2} }$

Now,

$\bf \: Area \: of \: circle = \pi {r}^{2}$

$\rightarrow \: \frac{22}{7} \times ({ \frac{7}{2}) }^{2}$

$\rightarrow \frac{22}{ \cancel7} \times \frac{ \cancel{49}}{4}$

$\rightarrow \: 22 \times \frac{7}{4}$

$\rightarrow \: 11 \times \frac{7}{2}$

$\rightarrow \frac{77}{2}$

$\rightarrow \: 38.5 \: cm {}^{2}$

Area of rectangle = 38.5 cm².

7 0

3 years ago

Amy had $28 dollar’s to spend on school supplies. After buying 7 pens, she had $20.30 left. How much did each pen cost including

Airida [17]

Answer:

Step-by-step explanation:

If Amy started with 28 dollars and bought 7 pens, then had 20.30 dollars, we can subtract to find the price of all 7 pens.

28-20.30=7.70 dollars

now to find the amount for EACH pen, we divide by 7

7.70/7=1.1

each pen costed Amy 1 dollar and 10 cents with tax

5 0

3 years ago

Read 2 more answers

This is the equation: g(r)=25-3r<br> g(4)=

ANTONII [103]

Equation: g(4)=25-3(4), answer: g(4)=13

3 0

3 years ago