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KIM [24]
1 year ago
7

Answer this for 5 star! Need explanation

Mathematics
1 answer:
Dmitry_Shevchenko [17]1 year ago
3 0

Answer: 6

Step-by-step explanation: To solve we first start by adding like terms in our equation which is 30 + 54 = x(5+9) which becomes 84=x(14). Now we need to isolate the x variable by dividing both sides by 14.

x(14) ÷ 14 = x, 84 ÷ 14 = 6

This leaves us with the answer x = 6

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Find the number of distinguishinable permutations of the digits 348 838
seropon [69]

Answer:

There are 60 distinguishable permutations of the digits of the number 348838.

7 0
3 years ago
Mr. Moretti is making welcome bags to give to the 18 students in his homeroom on the first day of school he puts m mechanical pe
Mashcka [7]

Answer:

The total number of pencils is 6

Step-by-step explanation:

According to the given scenario, the computation of the total number of pencils is as follows:

There are 18 students

And let us assume there is m mechanical pencils that put in each bag

also he put twice of the regular pencil

So if he put the 3 mechanical pencil

So, the total number of pencils is

= 3 × 2

= 6

As it twice of the regular pencil

hence, the  total number of pencils is 6

5 0
3 years ago
What is the property of -8+3 = 3+ (-8)
Marizza181 [45]

Answer:

12

Step-by-step explanation:

its not 12 im just trying to make an account

7 0
3 years ago
A dump truck driver is delivering loads of sand for making sandbags to protect homes from flooding. Each load contains 12 m3 of
DaniilM [7]

Answer:

  57

Step-by-step explanation:

The volume of a cone is given by the formula ...

  V = (1/3)πr²h

For a pile with a radius of 8.5 m and a height of 9 m, the volume is ...

  V = (1/3)π(8.5 m)²(9 m) = 216.75π m³ ≈ 680.94 m³

Then the number of truckloads required to create that size pile will be ...

  (680.94 m³)/(12 m³/truck) = 56.745 trucks

Even a partial truck load entails another trip, so ...

  57 truck loads of sand are needed.

5 0
3 years ago
You are resurfacing your backyard pool. The pool is in the shape of a rectangular prism with a length of 20 ft, a width of 10 ft
zepelin [54]

Answer:

440\ ft^2

Step-by-step explanation:

we know that

The area of the backyard pool to be resurfaced is equal to the area of the base plus the area of its four lateral sides.

so

A=B+PH

where

B is the area of the base

P is the perimeter of the base

H is the depth of the pool

<em>Find the area of the base B</em>

B=(L)(W)

substitute the given values

B=(20)(10)=200\ ft^2

<em>Find the perimeter of the base P</em>

P=2(L+W)

substitute the given values

P=2(20+10)=60\ ft

we have

H=4\ ft

<em>Find the area of the backyard pool to be resurfaced</em>

A=B+PH

substitute the values

A=200+60(4)

A=440\ ft^2

3 0
3 years ago
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