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UNO [17]
3 years ago
14

Can someone please help me with this queston? I've been stuck on it forever.

Mathematics
1 answer:
Marrrta [24]3 years ago
6 0
You have two rectangular sides with a total area of:

A=2(10*15)=300 ft^2

You have two triangular sides with a total area of:

A=2(8*12)/2=96 ft^2

And you have a rectangular base with an area of:

A=15*12=180 ft^2

So the total surface area is:

A=300+96+180=576 ft^2
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Solve the equation <br> -13/4 -x= 1/2x -1
ale4655 [162]

Answer:

x = 2 or 1/4

Step-by-step explanation:

-13/4 -x= 1/2x -1

Collect like terms

-13/4+1=1/2x+x

Using LCM

(-13+4)/4=(1+2x²)/2x

9/4=(1+2x²)/2x

Cross multiply

9(2x)=4(1+2x²)

18x=4+8x²

Turn into quadratic and solve

8x²-18x+4

Using formulae method

-b±(√b²-4ac)/2a

Where a=8, b= -18 and c=4

(-(-18)±(√(-18)²-4(8)(4))/2(8)

(18±(√324-128))/16

(18±√196)/16

(18±14)/16

(18+14)/16 or (18-14)/16

32/16 or 4/16

2 or 1/4

4 0
3 years ago
Read 2 more answers
1/3=4/12<br> Explain the reasoning in words.
nevsk [136]
1/3 is equal to 4/12.
1 goes into 3, 3 times, and 4 goes into 12 three times. Therefore 4/12 is also 1/3.
6 0
3 years ago
It is stated that a quantity varies directly as another if the two quantities always change in the same ratio. So, what would ha
lys-0071 [83]

Answer:

2k

Step-by-step explanation:

Let k  is the ratio between two variables or y = kx

when x double, means: y = k (2x) = 2kx  quantity y will change with a ratio 2k

5 0
2 years ago
Help!! <br>2x+3 (x-4)=x-20
prohojiy [21]
Remember  you can do anything to an equation as long as you do it to both sides

2x+3(x-4)=x-20
first distribute
2x+3(x)+3(-4)=x-20
2x+3x-12=x-20
5x-12=x-20
minus x both sides
4x-12=-20
add 12 to both sides
4x=-8
divide both sides by 4
x=-2
8 0
3 years ago
What is 5 divided by 4/9
Maslowich

The answer is 11 1/4

5 0
2 years ago
Read 2 more answers
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