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3 years ago

You are going to a fair! It costs $6 for the

Mathematics

2 answers:

inna [77]3 years ago

8 0

Answer:

Step-by-step explanation:

21-6=15/3=5

yawa3891 [41]3 years ago

5 0

Answer:

5 tickets

Step-by-step explanation:

21-6=16 16 divided by 3= 5.333 so about 5 tickets

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There are 820 people at a stadium.65% of them are adults,20% of them are boys,and the rest are girls. How many girls are there a

klemol [59]

100% - 65% - 20% = 15% girls.

15% = 0.15

820 * 0.15 = 123 girls

7 0

3 years ago

A bond is initially bought for $250. It doubles in value every decade.Write an equation relating v, the value of the bond, to d,

Juliette [100K]

Answer:

V=250(2d)

Step-by-step explanation:

5 0

3 years ago

A force of 4 pound acts in the direction of 48degree to the horizontal. The force moves an object along a straight line from the

Dafna11 [192]

Answer:

<u>Work Done = 27.66 Joules</u>

Step-by-step explanation:

The work done is:

$W=F*d*Cos \theta$

Where

F is the fore

d is the distance moved

$\theta$ is the angle

The force is "4"

The distance is the distance from (1,7) to (8,10)

The distance is the square root of change in y coordinates, squared and sum of change in x coordinates, squared. Hence, distance is:

$\sqrt{(10-7)^2+(8-1)^2}\\=\sqrt{3^2+7^2}\\\sqrt{58}$

The angle is gotten by the formula:

$Cos\phi = \frac{Force in x direction}{Distance}\\Cos\phi = \frac{8-1}{\sqrt{58}}\\Cos\phi=\frac{7}{\sqrt{58}}\\\phi = Cos^{-1}\frac{7}{\sqrt{58}}\\\phi = 23.21$

So, now:

$\theta = 48 - 23.21 = 24.79$

Work Done = $F*d * Cos\theta = 4 * \sqrt{58} * Cos(24.79)$

<u>Work Done = 27.66 Joules</u>

6 0

3 years ago

How many pizzas does a restaurant make each night if 25% of the total is equal to 90 pizzas?

TEA [102]

20% of 90 pizzas is 22.5 pizzas
And since you can’t just buy half a pizza it would have to be 23 pizzas :)

5 0

3 years ago

Read 2 more answers

Hit me up if ur bored but what's 7x-2y=23 squared

goblinko [34]

Simplify 7x + 2y = -23 Solving 7x + 2y = -23 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2y' to each side of the equation. 7x + 2y + -2y = -23 + -2y Combine like terms: 2y + -2y = 0 7x + 0 = -23 + -2y 7x = -23 + -2y Divide each side by '7'. x = -3.285714286 + -0.2857142857y Simplifying x = -3.285714286 + -0.2857142857y

5 0

3 years ago