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3 years ago

8

Alice has 2 pennies, 3 nickels, 4 dimes, 4 quarters and 1 loonie in her pocket. If one coin is drawn randomly, what is the theor

etical probability of getting a quarter?

1 answer:

Leviafan [203]3 years ago

4 0

Answer: 4/14

Step by step: there are 14 coins and only 4 quarters so 4/14

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-90+56<br><br> Plz help me I don’t know what to do

mina [271]

Answer:

-34

Step-by-step explanation:

-90+56= -34

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3 years ago

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Solve the system using submsitution<br> x+y=-10<br> y=5x+2

Nitella [24]

Answer:

x+y= -10

y=5x+2

solution

x+(5x+2)= -10

x+5x+2= -10

6x+2= -10

6x= -10-2

6x= -12

6x/6= -12/6

x= -2

while y=5x+2

y= 5(-2)+2

y= -10+2

y= -8

x= -2, y= -8

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3 years ago

A sector of a circle of 7cm has an area of 44cm².calculate the angle of the sector,correct to the nearest degree π =22\7

Hitman42 [59]

Answer:

$\theta=102.85^{\circ}$

Step-by-step explanation:

Given that,

The radius of circle, r = 7 cm

The area of sector, A = 44cm²

We need to find the angle of the sector. The formula for the area of sector is given by :

$A=\dfrac{\theta}{360}\pi r^2$

Solve for $\theta$ .

$\theta=\dfrac{360A}{\pi r^2}\\\\\theta=\dfrac{360\times 44}{\dfrac{22}{7}\times 7^2}\\\\\theta=102.85^{\circ}$

So, the angle of the sector is equal to $102.85^{\circ}$ .

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3 years ago

Define the variables and write a system of equations to represent the given situation do not solve

Kaylis [27]

Answer: 28x + 15y = 131 and x + y = 7 where x is the number of Dress shirt and y is the number of T-shirt.

Step-by-step explanation:

We will represent the number of Dress shirt he bought by x and we will represent the number of T-shirt he bought by y.

We know that he spent 131 so the cost of each dress shirt plus the cost of each T-shirt has to equal 131. Also, he bought 7 total shirts so x plus y has to equal 7.

28x + 15y = 131

x + y = 7

Note: it says don't solve so I didn't solve but if you want to solve use these equations.

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3 years ago

A zoo has six adult tigers. Their caretaker orders a total of 40.8 kilograms of meat for them each day. Each tiger receives the

lbvjy [14]

Each tiger gets 6.8 kilograms of meat a day. I used a calculator to divide 60.8 by 6.

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3 years ago