Mr. Cisernos buys some basketballs (m) for a total of $50. He now has $20 left. Write an equation and solve how much Mr. Cisernos had before he bought the basketballs?

Answers

Answer 1

Answer: 50+20=70 and 70-50=20

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Identify the coefficients and the constants from the following expression. 3+4x-y+5x-2
I really need help on my math homework please anyone

What is 4/5 - 3/4?????

Answers

Well first you have to find a common denominator. 5 and four, their least common denominator is 20 so make the denominator 20.

4/5 = 16/20

3/4 = 15/20

16/20 - 15/20 = 1/20

$(4)/(5) - (3)/(4)$

$= (4)/(5) + (-3)/(4)$

$= (16)/(20) + (-15)/(20)$

$= (16+-15)/(20)$

$= (1)/(20)$ is your final answer.

The table shows the results of rolling a number cube, with sides labeled 1 through 6, several times. What is the experimental probability of rolling a 1 or a 5?

Express your answer in simplest form.

Outcome 1 2 3 4 5 6
Number of times outcome occurred 10 6 4 8 6 6

Answers

Total number of rolls in the experiment: (10 + 6 + 4 + 8 + 6 + 6) = 40 .

Number of times '1' or '5' came up: (10 + 6) = 16 .

Experimental probability of '1' or '5' : 16/40 = 40%
(Could change, and most likely will, in the next experiment.)

Theoretical probability: 2/6 = 33-1/3 %

Answer:

1/4

Step-by-step explanation:

A guy-wire is attached to a pole for support. If the angle of elevation to the pole is 67° and the wire is attached to the ground at a point 137 feet from the base of the pole, what is the length of the guy wire (round to 2 decimal places)?. . A) 58.15 feet. . B) 143.40 feet. . C) 148.83 feet. . D) 350.62 feet

Answers

The pole, the guy wire, and the distance along the ground
all form a right triangle. Please sketch a picture of the set-up
on your scratch paper.

In a right triangle,

   (the side adjacent to one of the acute angles)
divided by
   ( the hypotenuse)

is the cosine of the angle.

In this problem ...

-- the acute angle in the triangle is 67°

-- the distance along the ground is the side adjacent to the angle ... 137-ft.

-- the wire is the hypotenuse of the triangle.

-- so,       cosine(67°) = (137-ft) / (length of the wire)

Multiply each side by
(length of the wire) : cosine(67°) x (length of the wire) = (137-ft)

Divide each side
by cosine(67°)                   length of the wire = (137-ft) / cosine(67°)

Look up cosine(67°)
on your calculator: length of the wire = (137-ft) / (0.390731)

   = 350.624 .

rounded to two decimal places: 350.62 ft

3.25, 3.0, 2.75, 2.5, 2.25, ...What is the rule to continue this decimal number pattern?
increase by 0.5
increase by 0.25
decrease by 0.5
decrease by 0.25

Answers

3.25 - 3 = 0.25
3 - 2.75 = 0.25
2.75 - 2.5 = 0.25
2.5 - 2.25 = 0.25

Since we subtracted those numbers, it means we are decreasing.
Therefore, the answer is decrease by 0.25.

you are decreasing by 0.25 . Each time you are subtracting only .25 to each number . +

True or false all rectangles are quadrilaterals

Answers

Answer:

True

Step-by-step explanation:

All rectangles are quadrilaterals because a quadrilateral, by definition, is a shape having 4 straight sides.

Write 10/6 as a mixed number in simplest form

Answers

10/6 = 6/6 + 4/6 = 1 + 4/6 = 1 + 2/3

So, the simplest mixed number equaling 10/6 is 1 2/3.

1 and 2/3 is you mixed number. You just do 10 divided by 6 then if u have left overs then u you put it over the denominator

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