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8090 [49]
4 years ago
8

When a number, half of the number, and a third of the number are added together, the

Mathematics
1 answer:
Finger [1]4 years ago
8 0

Step-by-step explanation:

Let the number be x.

Half of a number is x/2 and a third of the number is x/3

ATQ,

x+\dfrac{x}{2}+\dfrac{x}{3}=275\\\\\dfrac{6x+3x+2x}{6}=275\\\\\dfrac{11x}{6}=275\\\\x=\dfrac{275\times 6}{11}\\\\x=150

Frist no is 150

Second no is 150/2 = 75

Third no is 50

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Find the area of a triangle whose height is 2x and base is 2x + 2.
wel

Answer:2x^{2}+2x


Step-by-step explanation:

1. You must apply the formula for calculate the area of a triangle, which is shown below:

Area=\frac{base*height}{2}

2. You know the height and the base, which are given in the problem. Then, you only need to substitute them into the equation shown above and simplify it, as following:

Area=\frac{2x(2x+2)}{2}

Area=x(2x+2)\\Area=2x^{2}+2x


3 0
3 years ago
Help!! answer quick will give brainliest
Darina [25.2K]

Answer:

second option

Step-by-step explanation:

The slopes of perpendicular lines have a product of -1. The slope of this line is 3 from the graph so the slope of our line will be -1/3. We know the slope of the line and a point (F, G) that belongs to the line so we can use point-slope form.

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6 0
3 years ago
In a chemistry course, a student scored 99 on one test, 98 on another test, and 88 on each of the other tests. the student’s tes
Alexxandr [17]
The student took 7 tests. 

99+98+88+88+88+88+88 = 637


637/7 = 91
8 0
3 years ago
Which logarithmic equation is equivalent to3^2 = 9
Burka [1]
Log9 =2
    3


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3 0
4 years ago
Find the area of the hexagon
IrinaK [193]

Answer:

The area is 78 square inches

Step-by-step explanation:

so you can split the hexagon into two trapezoids, and then find the area of one of those trapezoids, which is what I did. The area of a trapezoid I think is

a, b=base, h=height

A=a+b/2*h

is a really bad way of saying it, but that's how I know to do it.

So anyways I just substituted the numbers with their corresponding letters and solved. So the area of one trapezoid was 39, and since we have two 39's, you do 39*2 and you get 78.

Hope I helped

4 0
3 years ago
Read 2 more answers
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