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saul85 [17]
2 years ago
5

Peyton is building a model tower using plastic bricks. The height of the tower is proportional to how many layers of bricks he u

ses. He knows after 15 layers of bricks that his tower is 24 centimeters tall. Peyton wants the model to be 120 centimeters tall. How many layers of bricks does Peyton need to use to reach 120 centimeters tall?
Mathematics
1 answer:
Alex777 [14]2 years ago
3 0
75 layers

15 layers/24 cm = x layers/120cm
(120*15)/24 = x
75 layers = x
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Here you go. Hope this helps.

4 0
3 years ago
Can someone help me with number 10? Thank you.
sp2606 [1]

Answer:

  • east 95 km
  • south 89 km

Step-by-step explanation:

SOH CAH TOA can remind you of the relationships between triangle measures. The distance east is the side of the right triangle that is opposite the angle, so is related to the hypotenuse (ship's travel distance) by the sine function.

  sin(43°) = (travel distance)/(distance east)

So, ...

  (distance east) = (travel distance)·sin(43°)

Likewise, the cosine function can be used to find the distance south.

Then we have ...

  east = (130 km)sin(43°) ≈ 95 km

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6 0
3 years ago
What number is it? the difference of 9 and three times equals 69. find the number
Mazyrski [523]
Consider the number as 'n' (for now)
3n - 9 = 69
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Therefore, The number is 26
8 0
3 years ago
Need help asap for test
alex41 [277]

Answer:

a=4 and b=-1

Step-by-step explanation:

2(4)+3(-1)= 5

6 0
3 years ago
Two number cubes are rolled. What is the probability of rolling a sum of 9 or a sum that is even?
Murljashka [212]

Well I don't know !
Let's figure it out together.

Each cube can land in 6 different ways, so the total number
of possible results with two cubes is (6 x 6) = 36 .

Now we need to figure out how many of those 36 possibilities
meet your specifications ... either 9 or any even number.

Ways to make 9 :

3 . . . 6
6 . . . 3
4 . . . 5
5 . . . 4

Four ways to make 9.
____________________________

Ways to make an even number:

1 . . . 1
3 . . . 1
1 . . . 3
2 . . . 2
5 . . . 1
1 . . . 5
6 . . . 2
2 . . . 6
6 . . . 4
4 . . . 6
6 . . . 6

Eleven ways to make an even number.
_____________________

Total number of ways to succeed = (4 + 11) = 15 ways

So the probability of succeeding (rolling 9 or an even number)
is

               15 / 36  =  5 / 12  =  0.41666... =  (41 and 2/3) % .

8 0
3 years ago
Read 2 more answers
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