All categories

2 years ago

Taree fourts of the 64 books were math books. determine the percent of the books that were math books.

Mathematics

1 answer:

Volgvan2 years ago

4 0

Answer: 75% - these are books on mathematics.

Step-by-step explanation:

$\dfrac{3}{4} \cdot 64 = 48\\$

64 - 100%

48 - x%

$\dfrac{64}{100} =\dfrac{48}{x}\\\\x=\dfrac{48 \cdot 100}{64} \\\\x=75 \%$

You might be interested in

True or false if a line and a circle are coplanar i am a line intersects the circle in exactly 1 point the line is called a tang

Fed [463]

The answer you need is true

4 0

3 years ago

Match each quadratic equation with its solution set.

Luba_88 [7]

Answer:

2x²-32 ⇒ x²=16⇒ (-4,4)

4x²-100 ⇒x²=25 ⇒(-5,5)

x²-55=9 ⇒x²=64 ⇒(-8,8)

x²-140=-19 ⇒x²=121 ⇒(-11,11)

2x²-18=0 ⇒x²=9 ⇒(-3,3)

5 0

3 years ago

Read 2 more answers

Find the inverse function of

shtirl [24]

Answer:

$f(x) = 20x - 4 \\ substitute \: y \: for \: f(x) \\ y = 20x - 4 \\ interchange \: x \: and \: y \\ x = 20y - 4 \\ swap \: the \: sides \: of \: the \: equation \\ 20y - 4 = x \\ move \: the \: constant \: to \: the \: right \: hand \\ 20y = x + 4 \\ divide \: both \: sides \: by \: 20 \\ y = \frac{1}{20} x + \frac{1}{5} \\ substitute \: f {}^{ - 1} (x) \: for \: y \\ f {}^{ - 1} (x) = \frac{1}{20} x + \frac{1}{5}$

The domain of the inverse of a relation is the same as the range of the original relation. In other words, the y-values of the relation are the x-values of the inverse.

Thus, domain of f(x): x∈R = range of f¯¹(x)

and range of f(x): x∈R =domain of f¯¹(x)

3 0

2 years ago

Combine like terms and classify the polynomial by the number of terms.

andriy [413]

The answer is C. Binomial

8 0

2 years ago

Read 2 more answers

What is the image of (4,3) after a reflection over the x-axis ?

Greeley [361]

If it was reflected over the x-axis it would become (4,-3).

7 0

3 years ago

Taree fourts of the 64 books were math books. determine the percent of the books that were math books.​

Taree fourts of the 64 books were math books. determine the percent of the books that were math books.