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3 years ago

14

A box contains 15 yellow, 15 orange, and 15 green tennis balls. If Izzy draws a tennis ball at random out of the box, what is th

e probability that she drew either a green or an orange tennis ball?

2 answers:

Rasek [7]3 years ago

8 0

It could be 30/45 or 15/45 if its for each one

Orlov [11]3 years ago

5 0

Add all is 45 and then you subtracted 30 it’s 15

You might be interested in

Express the terms of the following geometric sequence recursively.

BabaBlast [244]

Answer:

The most correct option for the recursive expression of the geometric sequence is;

4. t₁ = 7 and tₙ = 2·tₙ₋₁, for n > 2

Step-by-step explanation:

The general form for the nth term of a geometric sequence, aₙ is given as follows;

aₙ = a₁·r⁽ⁿ⁻¹⁾

Where;

a₁ = The first term

r = The common ratio

n = The number of terms

The given geometric sequence is 7, 14, 28, 56, 112

The common ratio, r = 14/7 = 25/14 = 56/58 = 112/56 = 2

r = 2

Let, 't₁', represent the first term of the geometric sequence

Therefore, the nth term of the geometric sequence is presented as follows;

tₙ = t₁·r⁽ⁿ⁻¹⁾ = t₁·2⁽ⁿ⁻¹⁾

tₙ = t₁·2⁽ⁿ⁻¹⁾ = 2·t₁2⁽ⁿ⁻²⁾ = 2·tₙ₋₁

∴ tₙ = 2·tₙ₋₁, for n ≥ 2

Therefore, we have;

t₁ = 7 and tₙ = 2·tₙ₋₁, for n ≥ 2.

4 0

3 years ago

An ice cream stand is 1.38 kilometers from the starting point of a bike path. Brian rides his bike from the starting point to th

Andrei [34K]

Answer:

8.28

You have to do 1.38 times 2 and then times 3

6 0

3 years ago

4. Janet wants to spend no more than $45 her friend's birthday gift. She already bought her a

Vera_Pavlovna [14]

Answer:

Step-by-step explanation:

45=15+x

45-15=x

30=x

6 0

3 years ago

A flat rectangular piece of aluminum has a perimeter of 62 inches. The length is 15

dexar [7]

Answer:

Width of rectangular piece = x = 8 inches

Step-by-step explanation:

Perimeter of rectangular piece = 62 inches

Let width of rectangular piece= x

and length of rectangular piece = x+15

We need to find width i.e value of x

The formula used for perimeter of rectangle is: $Perimeter=2(Length+Width)\\$

Putting values in formula and finding Width:

$Perimeter=2(Length+Width)\\\\62=2(x+x+15)\\62=2(2x+15)\\62=4x+30\\62-30=4x\\4x=32\\x=\frac{32}{4}\\x=8$

After solving we get value of x = 8

So, Width of rectangular piece = x = 8 inches

5 0

3 years ago

3xc = -5, solve for x

atroni [7]

Answer:

$x = -\dfrac{5}{3c}$

Step-by-step explanation:

You want x alone on the left side.

x is being multiplied by 3 and by c.

The opposite operation of multiplication is division. You must divide 3xc by 3c to end up with just x.

You must do the same operation to both sides of an equation, so divide both sides by 3c.

$3xc = -5$

Divide both sides by 3c.

$\dfrac{3xc}{3c} = \dfrac{-5}{3c}$

Simplify both sides.

$x = -\dfrac{5}{3c}$

4 0

3 years ago