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3 years ago

For each month of a year, Selena saved

Mathematics

2 answers:

ad-work [718]3 years ago

6 0

Answer:

Step-by-step explanation:

Schach [20]3 years ago

3 0

Answer:

[1800-100(12)]/12 = (1800-1200)/12 = 600/12 = 50

Step-by-step explanation:

You might be interested in

moby sold half his toy car collection, and then bought 12 more cars the next day. he now has 48 toy cars . how many cars did he

Zinaida [17]

Answer:

Step-by-step explanation:

48-12 = 36

36/2

5 0

3 years ago

Use the three steps to solve the problem. Express the answers using decimals.

poizon [28]

We let
x be the time it took John to get to his uncle's
y be the time it took John to get back from his Uncle's

So,
x + y = 12

And making use of the given velocities
20x = 30y
x = 3/2 y

Substituting to the first equation
3/2 y + y = 12
y = 4.8 h
Substituting to either of the equations
x = 7.2 h

7 0

3 years ago

PLEASE HELP

IgorLugansk [536]

Answer:

D. AB/CE = ED/BC

Step-by-step explanation:

In this question you apply the side-Angle-side similarity property that makes the two right triangles similar.

In this property, the lengths of the corresponding legs of the two right triangles are proportional.

Hence

Leg AB corresponds to leg CE

Leg ED corresponds to leg BC

From the property;

$\frac{AB}{CE} =\frac{ED}{BC}$

8 0

3 years ago

Dave won a hot dog eating contest by eating 18 hot dogs in 10 minutes. He ate two more than twice the amount of the runner-up. W

IrinaVladis [17]

Answer:

The correct anser is option

B. 2x + 2 = 18

Step-by-step explanation:

Let the number of hot dogs eaten by the runner up be represented by x

If Dave ate 2 more than twice x, this means that the number eaten by him = 2x + 2

Since the total number of hot dogs eaten by Dave is 18

Therefore, the equation will be

2x + 2 = 18

So the number of hot dogs eaten by the runner-up is determined by solving for x

2x= 18-2

2× = 16

x = 16/2

x = 8

The runner up are 8

While Dave are

2×8 + 2 = 18.

8 0

3 years ago

Read 2 more answers

Charlie measured the circle-shaped part of a sun his sister drew on the chalkboard. The circumference of the circle is 75.36 cm.

ch4aika [34]

Answer:

The diameter of circle is 24 cm.

Step-by-step explanation:

We are given the following in the question:

Circumference of circle = 75.36 cm

We have to find the diameter of the circle.

Circumference of circle =

$C =2\pi r$

where r is the radius of the circle.

Putting values, we get,

$75.36 = 2\times 3.14\times r\\\\r = \dfrac{75.36}{2\times 3.14}\\\\r=12$

Diameter of circle =

$d=2r\\d=2\times 12=24\text{ cm}$

Thus, the diameter of circle is 24 cm.

4 0

3 years ago