2 years ago

Jenny rented a bike from Danielle's Bikes.

Mathematics

2 answers:

larisa86 [58]2 years ago

6 0

The answer is 7 cuz 34-13=21/3=7

djverab [1.8K]2 years ago

3 0

Answer:

7 hours

Step-by-step explanation:

34 minus 13, the original price to buy the bike. That equals 21, 21 divided by 3, equals 7, because every hour, 3 dollars is spent.

You might be interested in

1 and 2 please and explain

baherus [9]

I'm sorry I don't know but you can use photomath you can just download it from the App

3 0

3 years ago

Someone help me please please someone help

Hoochie [10]

I Believe that it's -120

7 0

3 years ago

Read 2 more answers

4x+5=3x+6<br> Help please

ohaa [14]

Answer:

x=1

just use google mate

5 0

3 years ago

Read 2 more answers

Which are the solutions of the quadratic equation?

aivan3 [116]

So here just plug values into the quadratic formula x= -b+- sqr b^2-4ac / 2a

6 0

2 years ago

Read 2 more answers

A box at a yard sale contains 3 different china dinner sets, each consisting of 5 plates. A customer will randomly select 2 plat

marshall27 [118]

Answer:

$\dfrac{2}{7}$

Step-by-step explanation:

3 different china dinner sets, each consisting of 5 plates consist of 15 plates.

A customer can select 2 plates in

$C^{15}_2=\dfrac{15!}{2!(15-2)!}=\dfrac{15!}{13!\cdot 2!}=\dfrac{13!\cdot 14\cdot 15}{2\cdot 13!}=7\cdot 15=105$

different ways.

2 plates can be selected from the same dinner set in

$3\cdot C^5_2=3\cdot \dfrac{5!}{2!(5-2)!}=3\cdot \dfrac{3!\cdot 4\cdot 5}{2\cdot 3!}=3\cdot 2\cdot 5=30$

different ways.

Thus, the probability that the 2 plates selected will be from the same dinner set is

$Pr=\dfrac{30}{105}=\dfrac{6}{21}=\dfrac{2}{7}$

7 0

3 years ago