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3 years ago

12

Yet I need help again

1 answer:

myrzilka [38]3 years ago

3 0

Answer:

Hey! i think the answer should be 12 (the expression)

Step-by-step explanation:

6(7 - 5) = 6(2) = 12

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Elijah rolls a 6 on a die. He rolls again and gets a 2. This situation describes a compound event.

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3 years ago

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Developmental norms are used as a benchmark to determine where one should be developmentally. Please select the best answer from

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Answer:

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Step-by-step explanation:

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How many terms are in the algebraic expression 2y+3x-5x^2-g?<br><br><br>2<br>3<br>4<br>5

elena-14-01-66 [18.8K]

2y+3x-5x^2-g contains 4 terms that cannot be further simplified without know the values for the variables y, x, and g. Although 3x and -5x^2 contain the same variable x, since they have have different exponents, we can not directly add them together without knowing the value of x.

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4 years ago

You drive 70 miles per hour but then slow your speed by 15 miles per hour. You then return to your speed of 70 miles per hour. W

denis23 [38]

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2 years ago

George the Pigeon travels the same distance of 72 miles

NNADVOKAT [17]

Answer:

The speed of George the Pigeon in still air = 21 miles/hr

The speed of air = 3 miles/hr

Step-by-step explanation:

Let the speed of George the Pigeon in still air = $u$ miles/hr

Let the speed of air = $v$ miles/hr

Distance traveled = 72 miles

Relative speed against the wind = $(u-v)$ miles/hr

Time taken against the wind = 4 hours

Relative speed with the wind = $(u+v)$ miles/hr

Time taken against the wind = 3 hours

Using the formula:

$Speed = \dfrac{Distance}{Time}$

$u-v=\dfrac{72}{4}\\\Rightarrow u-v=18 ..... (1)$

$u+v=\dfrac{72}{3}\\\Rightarrow u+v=24 ..... (2)$

Adding (1) and (2):

$2u=42\\\Rightarrow u = 21\ miles/hr$

By equation (1):

$v = 21-18\\\Rightarrow v = 3\ miles/hr$

Therefore, the answer is:

The speed of George the Pigeon in still air = 21 miles/hr

The speed of air = 3 miles/hr

8 0

3 years ago