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Dahasolnce [82]
3 years ago
8

Which describe unit rates? Check all that apply. Nadia pays $30 for 2 baseball tickets. A certain type of sailboat travels at 7

nautical miles per hour. The cost of 3 hot chocolates is $2. A summer camp provides 3 meals for each camper.
Mathematics
2 answers:
Umnica [9.8K]3 years ago
7 0

Answer:

the anwer is b,d

Step-by-step explanation:


liubo4ka [24]3 years ago
6 0

Answer:

A certain type of sailboat travels at 7 nautical miles per hour.

A summer camp provides 3 meals for each camper.

Step-by-step explanation:

Unit rate shows the number of units of first quantity corresponding to one unit of second quantity,

Nadia pays $30 for 2 baseball tickets.

i.e. the number of dollars is 30 per 2 baseball tickets,

By the above definition,

It is not a unit rate,

A certain type of sailboat travels at 7 nautical miles per hour.

i.e. the number of nautical miles is 7 per 1 hour,

By the above definition,

It is a unit rate,

The cost of 3 hot chocolates is $2.

i.e. the number chocolate is 3 per 2 dollars,

By the above definition,

It is not a unit rate,

A summer camp provides 3 meals for each camper.

i.e. the number of meal is 3 per 1 unit of camper,

By the above definition,

It is a unit rate

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How long will it take Greg to earn $500.00 round to the nearest hour
Mrrafil [7]

Answer:

56 hours

Step-by-step explanation:

we know that  

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y/x=k or y=kx

Let

x -----> the number of hours

y ----> the amount earned in dollars

This problem represent a proportional relationship between the variable x and the variable y

Find the value of the constant of proportionality k

k=y/x

For (3,27) ----> k=27/3=9\ \$/h

For (9,81) ----> k=81/9=9\ \$/h

For (21,189) ----> k=189/21=9\ \$/h

The constant of proportionality k is 9

The linear equation is

y=9x

For y=$500

substitute in the equation and solve for x

500=9x

Divide by 9 both sides

x=56\ hours

5 0
2 years ago
I need some help quick:(
Fynjy0 [20]
The answer is C because that's is a 90 degree angle. So you just subtract 70 from 90.
3 0
2 years ago
Read 2 more answers
Use the graph below to determine a1 and d for the sequence. graphed sequence showing point 1, negative 10, point 2, negative 7,
Sonja [21]

Answer:

a_1=-10

d=3

Step-by-step explanation:

we know that                              

In an <u><em>Arithmetic Sequence</em></u> the difference between one term and the next is a constant, and this constant is called the common difference (d)

In this problem we have the ordered pairs

(1,-10),(2,-7),(3,-4),(4,-1),(5,2),(6,5)                      

Let                                          

a_1=-10\\a_2=-7\\a_3=-4\\a_4=-1\\a_5=2\\a_6=5

Find the difference between one term and the next

a_2-a_1=-7-(-10)=3              

a_3-a_2=-4-(-7)=3                  

a_4-a_3=-1-(-4)=3                        

a_5-a_4=2-(-1)=3                              

a_6-a_5=5-2=3                                                        

The difference between one term and the next is a constant        

This constant is the common difference                  

so                                                                                                                                  

The sequence graphed is an Arithmetic Sequence                    

therefore                                                                                    

The first term is a_1=-10                                    

The common difference is equal to d=3          

4 0
3 years ago
What is extraneous roots?
kobusy [5.1K]

extraneous root is a solution o an equation that seems to be  right but when we check it (by substituting it into the original equation) it turns out not to be right


7 0
3 years ago
Select all of the solutions to the equation below.<br><br><br><br> 12x2=24
DENIUS [597]

Answer:6 4

Step-by-step explanation:

6 0
3 years ago
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