All categories

2 years ago

It takes mike 18 minutes to finish reading 4 pages of a book. How long does it take for him to finish reading 30 pages??

Mathematics

2 answers:

VMariaS [17]2 years ago

6 0

18/4 = x/30
18x30 /4 = 135 minutes or 2 hours and 15 minutes.

Debora [2.8K]2 years ago

3 0

Answer:

135 minutes or 2 1/4 hours

Step-by-step explanation:

18 minutes = 4 pages

_________ ________

x 30pages

18x30=540

4x=540

540/4

x=135 minutes or 2 1/4 hours

Hope this Helps! So plz mark the other person brainliest cuz he/she deserves it!! ^-^

You might be interested in

Solve for the value of v: V+27=117

Fudgin [204]

V+27=117
Subtract 27 to 117:
v=90

7 0

1 year ago

Read 2 more answers

Convert the Cartesian equation (x 2 + y 2)2 = 4(x 2 - y 2) to a polar equation.

SashulF [63]

<u>ANSWER</u>

${r}^{2} = 4 \cos2\theta$

<u>EXPLANATION</u>

The Cartesian equation is

${( {x}^{2} + {y}^{2} )}^{2} = 4( {x}^{2} - {y}^{2} )$

We substitute

$x = r \cos( \theta)$

$y = r \sin( \theta)$

and

${x}^{2} + {y}^{2} = {r}^{2}$

This implies that

${( {r}^{2} )}^{2} = 4(( { r \cos\theta) }^{2} - {(r \sin\theta) }^{2} )$

Let us evaluate the exponents to get:

${r}^{4} = 4({ {r}^{2} \cos^{2}\theta } - {r}^{2} \sin^{2}\theta)$

Factor the RHS to get:

${r}^{4} = 4{r}^{2} ({ \cos^{2}\theta } - \sin^{2}\theta)$

Divide through by r²

${r}^{2} = 4 ({ \cos^{2}\theta } - \sin^{2}\theta)$

Apply the double angle identity

$\cos^{2}\theta -\sin^{2}\theta= \cos(2 \theta)$

The polar equation then becomes:

${r}^{2} = 4 \cos2\theta$

7 0

2 years ago

Can anyone help me?.

4vir4ik [10]

The third one is the correct answer

7 0

2 years ago

Given the arithmetic sequence where a_{1} = - 5 and d = 6 , what is a_{5} ?

dexar [7]

A_{5} = a_{1} + 4d = -5 + 4 x 6 = 19

3 0

1 year ago

6(w+3)+10+2m+3(m+5)?

saveliy_v [14]

Group the like terms to get 5m+6w+33.

8 0

2 years ago