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2 years ago

The number of times that a hiker walks over 8 miles each day is what type of data random variable?

Mathematics

1 answer:

Klio2033 [76]2 years ago

4 0

Answer: This is Discrete

Step-by-step explanation:

Just did the checkpoint

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Elimination using addition and subtraction. -4x+4y=-20 -2x+4y=-2

goldfiish [28.3K]

I would subtract the 2nd from the first one

so -4x - -2x = -2x

4y - 4y = 0

-20 - -2 = -18

-2x = -18

now I would divide that by -2 to get the value for x

so no we have x = 9

now you just have to substitute that into one of the equations and simplify to get y

-2 X 9 + 4y = -2

-18 + 4y = -2

4y =16

y = 4

3 0

3 years ago

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Mrs. Jasper has some 8-ounce cups for serving punch. Her punch bowl holds 2 gallons of punch. Mrs. Jasper thinks she can serve f

Dima020 [189]

Answer:

She is wrong

Step-by-step explanation:

in one gallon there is 128 ounces, and 2 would make it 256.

40 - 8 ounce cups would make it 320 ounces, therefore she would need 3 gallons at least.

5 0

3 years ago

The angles in a triangle are in the ratio 1:2:3. Show that the triangle is a right - angled triangle.

Alja [10]

Answer:

Angles in a triangles add up to 180°

Respectively 1 : 2 : 3 is going to be 1 x , 2 x and 3 x so,

1 x + 2 x + 3 x = 180°

⇒ Simplify

6 x = 180°

⇒ Divide by 6 on both sides to isolate x

x = 30°

Since the ratio was 1 x : 2 x : 3 x and x is 30°,

30 : 60 : 90

And since there is a 90° angle, it is a right - angled triangle

4 0

3 years ago

What expression is equivalent to 2(8g)

denis-greek [22]

Hello there! :)

Answer:

=16g

*The answer must have a positive sign.*

Step-by-step explanation:

<h2>Lesson: It's about Using Properties to Simplify Expression.</h2>

Distributive property: a(b+c)=ab+ac

First, you had to remove by parenthesis.

$2*8g$

And then, you multiply by the numbers.

$2*8=16$

Answer: → $=16g$

Hope this helps!

Thanks!

-Charlie

Have a great day!

8 0

3 years ago

What is this answerSimplify to create an equivalent expression. \qquad{8k-5(-5k+3)}8k−5(−5k+3)

Licemer1 [7]

Answer:

33k - 15

Step-by-step explanation:

Given expression,

$\qquad{8k-5(-5k+3)}$

By the distributive property,

$=8k-5(-5k) - 5(3)$

$=8k+25k-15$

By combining like terms,

$=33k-15$

∵ Further simplification is not possible,

Hence, the required simplified form of the given expression is,

$33k-15$

6 0

3 years ago

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