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olga_2 [115]
3 years ago
10

(15 PIONTS) PLZ HELP!!! URGENT!!!​

Mathematics
2 answers:
Vanyuwa [196]3 years ago
7 0

Answer:

FIVE

Step-by-step explanation:

OlgaM077 [116]3 years ago
7 0

Answer:

The answer is:

  • a. <u>y ≤ 3</u>

Step-by-step explanation:

To solve the location inside the line you must first correctly clear the value of Y, so we will do it step by step:

  • -5Y ≤ -15

Those who are multiplying to one side, go to the other side to divide:

  • Y ≤ -15 / -5

When the numerator and denominator of a division are negative, the answer is positive, you can take it as the two negative signs cancel, so:

  • Y ≤ 3

So the correct option is A.

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George walks 1 mile to school. He leaves home at the same time each day, walks at a steady speed of 3 miles per hour, and arrive
alex41 [277]

Answer:

George must run the last half mile at a speed of 6 miles per hour in order to arrive at school just as school begins today

Step-by-step explanation:

Here, we are interested in calculating the number of hours George must walk to arrive at school the normal time he arrives given that his speed is different from what it used to be.

Let’s first start at looking at how many hours he take per day on a normal day, all things being equal.

Mathematically;

time = distance/speed

He walks 1 mile at 3 miles per hour.

Thus, the total amount of time he spend each normal day would be;

time = 1/3 hour or 20 minutes

Now, let’s look at his split journey today. What we know is that by adding the times taken for each side of the journey, he would arrive at the school the normal time he arrives given that he left home at the time he used to.

Let the unknown speed be x miles/hour

Mathematically;

We shall be using the formula for time by dividing the distance by the speed

1/3 = 1/2/(2) + 1/2/x

1/3 = 1/4 + 1/2x

1/2x = 1/3 - 1/4

1/2x = (4-3)/12

1/2x = 1/12

2x = 12

x = 12/2

x = 6 miles per hour

4 0
3 years ago
Which best describes the life cycles of moss and angiosperm?
Aleksandr-060686 [28]
It would have to be iv

4 0
2 years ago
Read 2 more answers
-7r^2= -329 square root property​
Genrish500 [490]

9514 1404 393

Answer:

  r = ±√47

Step-by-step explanation:

  -7r^2 = -329 . . . . given

  r^2 = 47 . . . . . divide both sides by -7 (multiplication property of equality)

  r = ±√47 . . . .  square root both sides (square root property of equality)

5 0
2 years ago
Read 2 more answers
25A) Find the length of a rectangular lot with a perimeter of 132 feet if the
Greeley [361]

Answer:

34.5 ft

Step-by-step explanation:

~Refer to the attachment for the solution.

5 0
2 years ago
A boat is heading towards a lighthouse, whose beacon-light is 139 feet above the
Novay_Z [31]

The horizontal distance between light house and boat is 1588.78 feet approximately.

The figure is given by,

Here, AB  = height of the lighthouse bacon light above the water = 139 feet

Now angle ACB = 5 degree

Let the horizontal distance of light house from the boat = BC = x feet

So by trigonometric function we get,

tan 5 = AB/BC

tan 5 = 139/x

x = 139/tan 5 = 1588.78 (approximately)

Hence the horizontal distance between light house and boat is 1588.78 feet approximately.  

To know more about Trigonometric Function refer to:

brainly.com/question/1143565

#SPJ9

5 0
1 year ago
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