What do you get when you subtract 9 from b?

Alice travels 33 times as fast as Brenda. Traveling in opposite directions, they are 720720 miles apart after 7.57.5 hours. Find

Lubov Fominskaja [6]

You Need To Create An Equation Then Solve For Their Rates Of Travel.

7 0

3 years ago

A park guide plans the swan boat ride for 40 people. Each boat can carry 6 people at time. How do you interpret the remainder of

seropon [69]

Answer:

There would be 7 swan boat rides out of which 6 will carry 6 people each but the last swan boat ride carries 4 people. 2 more people can join the swan boat ride.

Step-by-step explanation:

We are given the following information in the question:

A park guide plans the swan boat ride for 40 people.

Total number of people = 40

Number of people that can ride in 1 boat = 6

Number of boats required =

$\displaystyle\frac{\text{Total number of people}}{\text{Numberof people that can ride in 1 boat}}=\frac{40}{6} = 6\frac{4}{6}$

This can also be represented with the modulo function which gives the remainder.

$40 \mod(6) = 4$

Thus, there would be 7 swan boat rides out of which 6 will carry 6 people each but the last swan boat ride carries 4 people.

2 more people can join the swan boat ride.

4 0

3 years ago

The probability that an individual is left-handed is 0.12. in a class of 39 students, what is the probability of finding five le

Snezhnost [94]

We are given:

p = probability = 0.12
n = total students = 39

x = left handers = 5
u = mean = p* n = 4.68
σ = standard dev = √ ( n*p*(1-p)) = √ ( 39 * 0.12 * 0.88 ) = 2.03

Calculating for the z score:

z = (x – u) / σ
z = (5 – 4.68) / 2.03

z = 0.1576 = 0.16

Using the standard tables for z, the p value is:

p value = 0.5636 = 56.36%

Hence there is a 56.36% chance.

8 0

3 years ago

Read 2 more answers

3x-4y= 3x−4y= \,\,9 9 -5x+4y= −5x+4y= \,\,-23 −23

Marta_Voda [28]

Answer: (7,3)

Step-by-step explanation:

[Please check]: I decoded the equations as follows:

3x-4y=9 and −5x+4y=-23

We can solve this by either of two methods: Algebra and graphing.

Algebra:

Add the two equations:

3x-4y=9

−5x+4y=-23

-2x = -14

x = 7

Use x=7 to solve for y:

3x-4y=9

3(7)-4y=9

21 -4y = 9

-4y = -12

y = 3

----

The solution is (7,3)

======

Graphing:

See the attached graph. The lines intersect at (7,3)

7 0

3 years ago

On the production line, it takes John 2 minutes less time than Mark to assemble a watch. Working together they can assemble 5 wa

vagabundo [1.1K]

12/5 = 2.4 min
2.4 minutes - 2 minutes
= 0.4 minutes

60/10=6
6*4=24

It takes John 24 seconds to assemble a watch.

4 0

4 years ago