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stellarik [79]
3 years ago
10

A hot tub that holds 300 gallons of water drains at a rate of 8 gallons write an equation that represents how many gallons of wa

ter are left in the tub after it has drained for x minutes
Mathematics
1 answer:
Salsk061 [2.6K]3 years ago
7 0

Answer:the number of gallons of water left in the tub after it has drained for x minutes is 300 - 8x

Step-by-step explanation:

A hot tub that holds 300 gallons of water drains at a rate of 8 gallons.

Let x represent the number of minutes for which the hot tub has drained water.

If the hot tub drains 8 gallons of water per minute, it means that in x minutes, the number of gallons of water that the hot tub would have drained is 8x

Therefore, the number of gallons of water left in the tub after it has drained for x minutes would be

300 - 8x

You might be interested in
Which is a factor of 144 − 49x2?<br><br> 12 - 7x2<br> 72 – 7x2<br> 12 – 7x<br> 72 + 7x
Vinil7 [7]

Answer:

(12-7x)

Step-by-step explanation:

144 − 49x²

by observation, we can see that 144 = 12² and 49 = 7²

hence we can rewrite the equation

144 − 49x²

= 12² - 7²x²

= 12² - (7x)²

recall that the expression x² - y² = (x+y)(x-y)

hence,

12² - (7x)²

= (12 + 7x)(12-7x)

(12-7x) appears in the expression above, hence 12 -7x is a factor

5 0
3 years ago
Read 2 more answers
During the assembly of a certain piece of exercise equipment, 3 welds are required during different phases of the assembly proce
Karolina [17]

Answer:

99.9973 %

Step-by-step explanation:

This is a binomial probability distribution.

Since the probability of satisfactory welds = 97% = 0.97 and the probability of defective welds = 3% = 0.03.

Since there are 3 welds and we require at least one being defective, our binomial probability is

P(x ≥ 1) = 1 - P(x ≤ 0) = 1 - P(0) = 1 - ³C₀(0.03)³(0.97)⁰ = 1 - 1 × ‭0.000027‬ × 1 = 1 - 0.000027 = 0.99997‬3 × 100% = 99.9973%

5 0
3 years ago
It says: Find the surface area of the rectangular prism with l=16 m, w=19 m, annd h = 2 m
ratelena [41]
The surface area of a rectangular prism needs an formula.
For a rectangular prism you have to understand some about the shape.
It is a 3D shape consisting of 6 sides
all are rectangles
to determine the area of one rectangle is the base multiplied by the height or in this case length times with.
but you also need to account for all sides and the height.
so the Surface area formula would be like
sa = l \times w + l \times h + w \times h
this accounts for 3 of the sides of the rectangular prism.
the top,bottom,and side.
so to get the surface area of a rectangle prism you must mutiply each side by 2 to account for all sides of the rectangular prism.
so the surface area formula for a rectangular prism is
SA = 2\\  \times l \times w +2 \times l \times h+2 \times h \times w
I won't solve it for you but just plug in your values for l,w,and h into that formula and you will get your answer in metres squared or m
{m}^{2}
8 0
3 years ago
Read 2 more answers
Please answer need fast will Brainly!!!!
Sunny_sXe [5.5K]

Answer:

4.6

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Just help me plssssssssss
Komok [63]

Answer:

The perimeter of triangle is 30ft.

Step-by-step explanation:

First you have to find the value of a using Pythogoras Theorem, a² + b² = c² where a and b is the sides and c is the hypotenuse :

{a}^{2}  +  {b}^{2} =   {c}^{2}

{a}^{2}  =  {c}^{2}  -  {b}^{2}

a =  \sqrt{ {c}^{2} -  {b}^{2}  }

Let b = 12,

Let c = 13,

a =  \sqrt{ {13}^{2} - 12 {?}^{2}  }

a =  \sqrt{25}

a = 5feet

Next you have to find the perimeter of triangle by adding all the sides together :

perimeter = 5 + 12 + 13

perimeter = 30feet

7 0
3 years ago
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