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makvit [3.9K]
3 years ago
5

Wesley is making a patio from stones of two sizes, 5 inches wide and 10 inches wide. He wants to begin and end his pattern with

a 10-inch stone so there will be one more of the 10-inch stone than of the 5-inch stones. His patio will be 145 inches wide. Wesley will need how many 10-inches stones for one row?
Mathematics
2 answers:
kupik [55]3 years ago
8 0

Answer:

12

Step-by-step explanation:

10t + 5(t-1) = 175

10t + 5t - 5 = 175

15t - 5 = 175

15t = 180

180 / 15 = 12

t =  12

Rom4ik [11]3 years ago
3 0
The first stone will be 10-in wide
The last stone will be 10-in wide
The stones in the middle will be alternating between 5-in and 10-in stones, making a total of 15-in
Total width = 145-in
Width after placing first and last stones = 145 - 20 = 125-in
Number of 15-in patterns incorporated in 125-in:
125/15 = 8.33
Therefore, he will place 8 10-inch stones within and 9 5-inch stones within the patter. 
The total 10-inch stones used = 8 + 2 = 10
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Lady bird [3.3K]

Answer:

Solution : Third Option

Step-by-step explanation:

The first step here is to make all the signs uniform. As you can see the third inequality has a less than sign, which we can change to a greater than sign by dividing negative one on either side, making the inequality y > - 7.

\begin{bmatrix}y>-3x+4\\ y>2x\\ y>-7\end{bmatrix}

Now take a look at the third option. Of course the y - coordinate, 3, is greater than - 7, so it meets the third requirement ( y > - 7 ). At the same time 3 > 1( 2 ) > 2, and hence it meets the second requirement as well. 3 > - 3( 1 ) + 4 > - 3 + 4 > 1, meeting the first requirement.

Therefore, the third option is a solution to the system.

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3 years ago
Select the expression that equals 9-(-15) a.9+(15) b. -9+15 c. 9+(-15) d. -9+-15
madreJ [45]

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Step-by-step explanation: PURPLE

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3 years ago
If an object is launched at an angle of 28° with an initial velocity of 133 ft./s from a height of 6 feet how many seconds will
Tema [17]

Answer:

Hence after  3.98 sec  i.e  4 sec Object will hit the ground  .

Step-by-step explanation:

Given:

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To Find:

Time in seconds after which it will hit the ground?

Solution:

<em>This problem is related to projectile motion for objec</em>t

First calculate the Range for object  and it is given by ,

R=v^2Sin(2Ф)/g

Here R= range  g= acceleration due to gravity =9.8 m/sec^2

1m =3.2 feet

So 9.8 m, equals to 9.8 *3.2=31.36 ft

So g=31.36 ft/sec^2. and 2Ф=2(28)=56

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R=467.62  fts

Now using Formula for time and range as

R=VxT

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4 0
3 years ago
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torisob [31]
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8 0
3 years ago
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Ierofanga [76]

Answer:

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