3 years ago

Ratio and proportion practice

Mathematics

1 answer:

fenix001 [56]3 years ago

3 0

Let’s put this into a proportion.

4/40=x/50

Remember it says solve using unit rates so we can simplify 4/40 to 1/10

1/10=x/50

Now we can cross multiply.

10·x = 1·50

10x=50

X=5

Hope that helped!

You might be interested in

The population of Smallville can be found by the equation Pt) = le", where P(t) is the

pashok25 [27]

Answer:

The population of the town in the year 1962 will be 1730.

Step-by-step explanation:

The population of Smallville can be found by the equation $P(t) = Ie^{rt}$ , where P(t) is the population at time t, r represents the rate of growth, and I is the initial population.

Now, if there are 225 residents in 1950 and the population of the town grows at a rate of 17% per year, then the population of the town in the year 1962 will be $P(12) = 225 e^{0.17 \times 12} = 1730$ (Approximate)

7 0

3 years ago

When Henry surveyed 45 seventh-grade students at random in the school cafeteria, he found that 3 out of 15 liked reggae music. U

xxMikexx [17]

3 x
---------= --------- ---------
15 180

15x=540
----- ------= 36 students.
15 15

Steps: Cross multiply to get 15x and 540. Divide both numbers by 15, then you found what x equals, which is the answer.

4 0

3 years ago

How you this and the answers

gregori [183]

Answer:

Step-by-step explanation:

? whats the question

6 0

3 years ago

Is the relationship between the 7's in 7,742 and the 7's in 7,785 different in any way? <br>explain

IgorC [24]

No because the hundred place doesn't move.

7 0

4 years ago

Read 2 more answers

In triangle DEF, M angle D equals 44°, M angle E equals 61°, and EF equal 20 Inches. What is DE to the nearest 10th of an inch

Anon25 [30]

The answer is DE = 27.81 in. Explanation: find the missing angle first, and put it into the equation for the law of sin ( sin(A)/a = sin(B)/b). Solve for the missing length, and you have the missing side to the triangle.

5 0

3 years ago