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svp [43]
3 years ago
13

What is 2x + 3y -4 =? x = 2 , y =4

Mathematics
1 answer:
Vanyuwa [196]3 years ago
7 0

Answer:

4X+12Y-4

Step-by-step explanation:

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abruzzese [7]

Answer:

Step-by-step explanation:

The legs and hypotnuse of a triangle can easily be solved by using

A^{2} +B^{2} =C^{2}

with this in mind we can plug in the legs and hypotenuse of the triangle to solve for the missing leg, A.

A^{2} =C^{2} -B^{2} \\A = \sqrt{(5^{2} )-(4^{2}) } \\A=\sqrt{9} \\A=3

Hope this helps,

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2 years ago
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HELP PLSSSSS
ludmilkaskok [199]

Answer:

a=21

AB=23.9

BC=19.5

CD=(23.9)

AD=19.5

Step-by-step explanation:

Each pair of parallel sides are equal in a parallelogram. Sense both pairs use the same variable we can just choose the easiest to solve which would be:

a-1.5=19.5

add 1.5 to both sides

a=21

now substitute 21 in for a in each equation.

AB=CD so

AB=23.9

BC=AD so

BC=19.5

CD=(21)+2.9 so

CD=(23.9)

AD is given so

AD=19.5

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2 years ago
A rectangular room measures 10 feet by 12 feet. Find the cost to install new baseboards around the room if the cost of the baseb
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The cost of the baseboards would be $79
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Step-by-step explanation:

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Step-by-step explanation:

Find how much less James makes by solving for x in the equation:

12(80 - x) = 816

960 - 12x = 816

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x = 12

So, James makes $12 less each month than Matt does.

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3 years ago
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