2 years ago

Martin has read 40% of a book. He has 30 more pages to finish. How many pages are there in the book?

Mathematics

2 answers:

victus00 [196]2 years ago

7 0

Answer:

Step-by-step explanation:

rodikova [14]2 years ago

7 0

Answer:

There are 50 pages in the book.

Step-by-step explanation:

Given that:

Martin has read 40% of the book.

Remaining percent = (100 - 40)% = 60%

Number of pages left to finish = 30

Let,

x be the total number of pages in the book.

60% of x = 30

$\frac{60}{100}x=30$

0.6x = 30

Dividing both sides by 0.6

$\frac{0.6x}{0.6}=\frac{30}{0.6}\\x= 50$

Hence,

There are 50 pages in the book.

You might be interested in

PLZ, help me with this question.

Korolek [52]

Answer:

Intensity

Step-by-step explanation:

In physics, intensity of radiant energy is the power transferred per unit area, where the area is measured on the plane perpendicular to the direction of propagation of the energy.

8 0

2 years ago

Read 2 more answers

The Medicare tax rate is 1.45% how much would be withheld form someone paycheck for Medicare with wages of $1,738 for that pay p

Tcecarenko [31]

Answer: $\$25.201$

Step-by-step explanation:

Given

The Medicare tax rate is 1.45%

The wages of a person is $1738

The amount which is withheld from the person paycheck is

$\Rightarrow 1738\times 1.45\%\\\Rightarrow 1738\times 0.0145\\\Rightarrow \$25.201$

7 0

2 years ago

An online bookstore charges $2 to ship any book. Cole graphs the relationship that gives the total cost x dollarars. Name an ord

Nonamiya [84]

(0,2) because you must start off at $2

6 0

2 years ago

Read 2 more answers

Last year, a car dealership sold 144 new cars and 108 used cars. Since then, the number of new cars sold is increasing by 8 cars

morpeh [17]

Answer: 4 years

Step-by-step explanation:

144 + 8(4) = 176

108 - 5(4) = 88

88 x 2 = 176

4 0

2 years ago

What is the exact solution to the equation 2^2x=5^x−1 ?

Ann [662]

2^2x=5^x−1

Take the log pf both sides:

ln(2^2x) = ln(5^x-1)

Expand the logs by pulling the exponents out:

2xln(2) = (x-1)ln(5)

Simpligy the right side:

2xln(2) = ln(5)x - ln(5)

Now solve for x:

Subtract ln(5)x from both sides:

2xln(2) - ln(5)x = -ln(5)

Factor x out of 2xln(2)-ln(5)x

x(2ln(2) - ln(5)) = -ln(5)

Divide both sides by (2ln(2) - ln(5))

X = - ln(5) / (2ln(2) - ln(5))

4 0

2 years ago

Read 2 more answers

Martin has read ​40% of a book. He has 30 more pages to finish. How many pages are there in the​ book?

Martin has read 40% of a book. He has 30 more pages to finish. How many pages are there in the book?