3 years ago

One paperback book costs $7. How many books can be bought for $133?

Mathematics

2 answers:

Vesna [10]3 years ago

6 0

Answer: 19 books

Equation:

X= number of books

$7 * x= $133

mariarad [96]3 years ago

5 0

Answer:

the answer is 19 book

Step-by-step explanation:

133 divided by 7

You might be interested in

The general solution of 2 y ln(x)y' = (y^2 + 4)/x is

Sav [38]

Replace $y'$ with $\dfrac{\mathrm dy}{\mathrm dx}$ to see that this ODE is separable:

$2y\ln x\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{y^2+4}x\implies\dfrac{2y}{y^2+4}\,\mathrm dy=\dfrac{\mathrm dx}{x\ln x}$

Integrate both sides; on the left, set $u=y^2+4$ so that $\mathrm du=2y\,\mathrm dy$ ; on the right, set $v=\ln x$ so that $\mathrm dv=\dfrac{\mathrm dx}x$ . Then

$\displaystyle\int\frac{2y}{y^2+4}\,\mathrm dy=\int\dfrac{\mathrm dx}{x\ln x}\iff\int\frac{\mathrm du}u=\int\dfrac{\mathrm dv}v$

$\implies\ln|u|=\ln|v|+C$

$\implies\ln(y^2+4)=\ln|\ln x|+C$

$\implies y^2+4=e^{\ln|\ln x|+C}$

$\implies y^2=C|\ln x|-4$

$\implies y=\pm\sqrt{C|\ln x|-4}$

4 0

3 years ago

What’s the rate of change of this table?

frez [133]

Answer: It would be y=2x.

5 0

3 years ago

Read 2 more answers

In your notebook, draw several perpendicular lines. what kind of angles are formed? acute angles obtuse angles right angles

Ainat [17]

Right angles will be formed because in drawing
the perpendicular lines they all form right angles
to begin with. With several more draw it will
still be the same as if you are drawing one

the answer is -right angles

7 0

3 years ago

Read 2 more answers

Someone try this who smart

Lelechka [254]

Answer:

Step-by-step explanation:

tHE center is F

the radio is from f to h

the chord is from r to U

and the diameter is from N to M

4 0

2 years ago

Anton leaves a cup of hot chocolate on the counter in his kitchen. Which graph is the best representation of the change in tempe

NNADVOKAT [17]

Answer:

Step-by-step explanation:

May I please see the graph?

8 0

3 years ago