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faltersainse [42]
3 years ago
15

If one-third of a number, x, is greater than five less than twice the number, which of the following is true?

Mathematics
1 answer:
MakcuM [25]3 years ago
6 0

Answer:

x= 15/7

Step-by-step explanation:

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Solve for x using the diagram
liraira [26]
Its bh 5 time 7 = 35 is ur hight 
6 0
2 years ago
If an open box has a square base and a volume of 115 in.3 and is constructed from a tin sheet, find the dimensions of the box, a
Karolina [17]
Let h = height of the box,
x = side length of the base.

Volume of the box is  V=x^{2} h = 115. 
So h = \frac{115}{ x^{2} }

Surface area of a box is S = 2(Width • Length + Length • Height + Height • Width).
So surface area of the box is
S = 2( x^{2}  + hx + hx)  \\ = 2 x^{2}  + 4hx  \\  = 2 x^{2}  + 4( \frac{115}{ x^{2} } )x
= 2 x^{2} + \frac{460}{x}
The surface are is supposed to be the minimum. So we'll need to find the first derivative of the surface area function and set it to zero.

S' = 4x- \frac{460}{ x^{2} }  = 0
4x = \frac{460}{ x^{2} }  \\  4x^{3} = 460  \\ x^{3} = 115  \\ x =  \sqrt[3]{115} = 4.86
Then h=  \frac{115}{4.86^{2}} = 4.87
So the box is 4.86 in. wide and 4.87 in. high. 

5 0
3 years ago
Read 2 more answers
Which of these is the algebraic expression for "eight less than some number?"
kipiarov [429]
B-8 would be the answer. This is because we are saying you have 8 less than something. So no matter what something is, we are taking away 8 from it. Since our something is unknown, we use our variable 'b' in its place, and subtract 8, giving us b-8.<span />
8 0
3 years ago
The fifth grade students 15/20 went to the book fair of the students who went to the book fair 12/16 bought at least one book wh
grin007 [14]

Answer:

\frac{9}{16}

Step-by-step explanation:

Out of a total of 1,  \frac{15}{20}  went to the fair and  \frac{12}{16} OF THOSE, bought atleast one book.

To find the fraction of students who bought at least one book, we will multiply both the fractions. That is the answer. Shown below:

\frac{15}{20}*\frac{12}{16}\\=\frac{3}{4}*\frac{3}{4}\\=\frac{9}{16}

Answer is  \frac{9}{16}

8 0
3 years ago
A committee in congress is made up of 10 members and there are 9 more democrats than republicans on it . how many democrats are
vodomira [7]
There are nine democrats
4 0
3 years ago
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