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VARVARA [1.3K]
3 years ago
7

Which of the following numbers is an integer 1.33333..., 5.2, 2/3,-3

Mathematics
1 answer:
kap26 [50]3 years ago
7 0
Integers are whole numbers so the answer is -3
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What is the slope of the line that is perpendicular to the line that goes through the two points (-8, 3) and (4, 27)?
Mademuasel [1]

Answer:

-1/2 or -0.5

negative half

Step-by-step explanation:

slope of regular line= (y1-y2) / (x1-x2)

(27-3) / (4 - -8)

24 / (4+8)

24 / 12 = 2

the slope of a perpendicular line is the negative reciprocal

the negative reciprocal of positive 2/1 (2 as a fraction) is:

negative half: -1/2 or -0.5

8 0
2 years ago
Are the following ordered pairs solutions to the equation 3x + 4y = 24 ? Select all true
wariber [46]

Answer:

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3 0
3 years ago
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One kilogram is approximately equal to 2.21 pounds. Find the number of pounds in 165 kilograms. Round to the nearest tenth of a
Shtirlitz [24]

Answer: 364.7 pounds

Step-by-step explanation: Multiply the number of kilograms, 165, by the number of pounds per kilogram, 2.21.

165 x 2.21 = 364.65

Round to the nearest tenth.

364.7 pounds in 165 kilograms.

8 0
3 years ago
John is twice as old as his son. In 42 years, the ratio of their ages will be 4:3. What is the son's current age?
dsp73

Answer: Jhon is 42 years old, and his son is 21 years old.

Step-by-step explanation:

Let's define:

J = John's age

S = Age of the son.

We know that:

"John is twice as old as his son"

J = 2*S

"In 42 years, the ratio of their ages will be 4:3. What is the son's current age?"

In 42, their ages will be:

J + 42 and S + 42.

And the ratio 4:3 means that:

(J + 42) = (4/3)*(S + 42)

Then we have the system of equations:

J = 2*S

(J + 42) = (4/3)*(S + 42)

To solve it we can first replace the first equation into the second one, to get:

(2*S + 42) = (4/3)*(S + 42)

2*S  - (4/3)*S = (4/3)*42 - 42

S*(6/3 - 4/3) = (1/3)*42

S*(2/3) = (1/3)*42

S = (3/2)*(1/3)*42 = 21.

And we can find Jonh's age if we use the first equation:

J = 2*S = 2*21 = 42

Jhon is 42 years old, and his son is 21 years old.

8 0
3 years ago
Alexa programmed a website's checkout process with an equation to calculate the amount customers will be charged when they buy h
Tamiku [17]

Answer:

Hey there!

The equation would be C=3.50r+5.75

Let me know if this helps :)

5 0
3 years ago
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