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3 years ago

7

A group of 5 people goes to the theater. If each ticket costs $6.50, is $50 a reasonable estimate for the cost of 5 tickets ? Ex

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2 answers:

MAVERICK [17]3 years ago

6 0

No it is not because its more then ten numbers away from the solution of the five tickets

GenaCL600 [577]3 years ago

4 0

No it's not because 6.50 rounds to 7 and 7 times 5 equals 35

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FUN QUESTIONS OF MATHETICS FOR BOREDISH PEOPLE:<br> 3x3?<br> 4x5?<br> 8x9?<br> 7x3?

PIT_PIT [208]

Answer: 3x3=9, 4x5=20, 8x9=72, and 7x3=21!

Step-by-step explanation:

5 0

2 years ago

The perimeter of the rectangle is 146 units. What is the length of the longer side?

NeTakaya

we know that

the perimeter of the rectangle is equal to

$P=2W+2L$

where

P is the perimeter of the rectangle

W is the width of the rectangle

L s the length of the rectangle

In this problem

$P=146\ units \\ W=2x\\ L=3x+3$

Substitute the values in the formula above

$P=2W+2L\\ 146=2*(2x)+2*(3x+3)\\ 73=2x+3x+3\\ 5x=70\\ x=14\ units$

$W=2x=2*14=28\ units\\ L=3x+3=3*14+3=45\ units$

therefore

the answer is

the length of the longer side of the rectangle is equal to $45\ units$

7 0

2 years ago

Read 2 more answers

In krissy's collection, there are 20 action movies and 28 comedies. what is the ratio of comedies to action movies in krissy's c

Anvisha [2.4K]

28/20. Reduce to 7/5

4 0

3 years ago

Solve the Differential equation (x^2 + y^2) dx + (x^2 - xy) dy = 0

natita [175]

Answer:

$\frac{y}{x}-2ln(\frac{y}{x}+1)=lnx+C$

Step-by-step explanation:

Given differential equation,

$(x^2 + y^2) dx + (x^2 - xy) dy = 0$

$\implies \frac{dy}{dx}=-\frac{x^2 + y^2}{x^2 - xy}----(1)$

Let y = vx

Differentiating with respect to x,

$\frac{dy}{dx}=v+x\frac{dv}{dx}$

From equation (1),

$v+x\frac{dv}{dx}=-\frac{x^2 + (vx)^2}{x^2 - x(vx)}$

$v+x\frac{dv}{dx}=-\frac{x^2 + v^2x^2}{x^2 - vx^2}$

$v+x\frac{dv}{dx}=-\frac{1 + v^2}{1 - v}$

$v+x\frac{dv}{dx}=\frac{1 + v^2}{v-1}$

$x\frac{dv}{dx}=\frac{1 + v^2}{v-1}-v$

$x\frac{dv}{dx}=\frac{1 + v^2-v^2+v}{v-1}$

$x\frac{dv}{dx}=\frac{v+1}{v-1}$

$\frac{v-1}{v+1}dv=\frac{1}{x}dx$

Integrating both sides,

$\int{\frac{v-1}{v+1}}dv=\int{\frac{1}{x}}dx$

$\int{\frac{v-1+1-1}{v+1}}dv=lnx + C$

$\int{1-\frac{2}{v+1}}dv=lnx + C$

$v-2ln(v+1)=lnx+C$

Now, y = vx ⇒ v = y/x

$\implies \frac{y}{x}-2ln(\frac{y}{x}+1)=lnx+C$

5 0

2 years ago

What is the slope of the line passing through the points

Bingel [31]

Hello!

Answer:

$\boxed{2}$

Step-by-step explanation:

$Slope=\frac{Y_2-Y_1}{X_2-X_1}=\frac{RISE}{RUN}$

$\frac{1-(-5)}{4-1}=\frac{6}{3}=2$

Therefore, the slope is 2, which is our final answer.

Hope this helps!

Have a nice day! :)

:D

Thank you!

6 0

3 years ago