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Citrus2011 [14]
3 years ago
9

Find the value of x how do you do this . Pls help

Mathematics
2 answers:
Whitepunk [10]3 years ago
7 0
The answer is 14 because 15 x 8 divided by 12 is 10, so 14-10 is 4. to double check you would do 14- 4 which is 10
Natali [406]3 years ago
5 0
12/15=8/(x-4)
12(x-4)=8(12)
12x-48=96
12x=144
x=12
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If the circular opening of the pipe has a diameter of 21 inches and the oil was estimated to be flowing at 30 inches/second, how
Anestetic [448]
This is a matter of Amount = Rate  times  time.

First, find the area of the circular opening.  A = pi (r^2).  Here,

A = pi(10.5 inches)^2.

To obtain the volume of water that flows out of the pipe per second, multiply this area by the 30 inches per second rate.

That comes out to a volume per second of  Volume rate = pi*(10.5 inches)^2 * 30 inches per second:

Volume rate = 3.14(110.25 in^2)(30 inches/sec)
                     = 10390.8 cubic inches per second

Convert this result to cubic feet per second.  Recall that 1 cubic foot = (12 inches)^3, or 1728 cubic inches / 1 cubic foot.

Thus, 10390.8 cubic inches per second comes out to

           10390.8 cubic inches
           ----------------------------   =   Just over 6 cubic feet per sec.
               1728 cu. inches
                ---------------------
                  1 cu. ft

How many sec in 1 day?    1 day = 24 hours
                                             1 hour = 60 minutes
                                             60 seconds = 1 minute

Figure out how many seconds there are in 1 day, and then multiply your result by 6 cu. ft. / sec. 
8 0
3 years ago
Use the ratio table to solve the percent problem.
vodka [1.7K]

Answer:

20%

Step-by-step explanation:

8⁄40 = ⅕ = 20%

The Greatest Common Factor [GCF] is 8, both denominator and numerator by 8, to get ⅕, which is 20% [0,2 - twice to the right → 20% (attach the percentage symbol)].

I am joyous to assist you anytime.

6 0
4 years ago
A refrigerator contains 6 apples, 5 oranges, 10 bananas, 3 pears, 7 peaches, 11 plums, and 2 mangos. imagine you stick your hand
Leviafan [203]
<span>A refrigerator contains 6 apples, 5 oranges, 10 bananas, 3 pears, 7 peaches, 11 plums, and 2 mangos. Imagine you stick your hand into the refrigerator and pull out a piece of fruit at random. What is the sample space for this process? a. S = {apple, orange, banana, pear, peach, plum, mango} b. S = {6, 5, 10, 3, 7, 11, 2} c. S = {6 apples, 5 oranges, 10 bananas, 3 pears, 7 peaches, 11 plums, 2 mangos}</span>
3 0
4 years ago
Can someone help me solve this?
katen-ka-za [31]
See the pic for the answer.  You just multiply each term on the left by each term on the top.  The coefficient is just the number in front of an unknown.

5 0
3 years ago
What is the rule of a function of the form f(t)= a sin (bt+c) +d whose graph appears to be identical to the given graph?
Gnoma [55]

Answer:

Option D.

Step-by-step explanation:

We can easily solve this problem by using a graphing calculator or plotting tool.

The function is

f(t) = a*sin (b*t +c) + d

Please, see attached picture below.

By looking at the picture with all the possible cases, we can tell that the correct option is D.

The function has a period of T = 6π

Max . Amplitude = 9

Min . Amplitude = -5

7 0
4 years ago
Read 2 more answers
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