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valkas [14]
3 years ago
12

Can someone please help me with this?

Mathematics
1 answer:
Anon25 [30]3 years ago
4 0
Use a ruler to solve it there is directions there for a reason

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What is 2x84 I don’t know the answer to it
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168

Step-by-step explanation:

2x80 is 160 plus 2x4 is 8 160+8 is 168

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Which criterion can be used to prove ABC and ADC are congruent?
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Helen determined she walks about 1,800 steps per 4/5 mile. How many steps did she take if she walked 3 miles?
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For what values of x and y must the figure have in order to be parallelogram?
Oduvanchick [21]

Answer:

y = 10°

x = 64°

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12y + 8 = 2x

2x - 12y = 8 ...................(i)

2x + 5y + 2 = 180(supplementary angle)

2x + 5y = 178..............(ii)

combine the equation

2x - 12y = 8 ...................(i)

2x + 5y = 178..............(ii)

make x subject of the formula in equation (i)

2x - 12y = 8 ...................(i)

2x = 8 + 12y

x = 4 + 6y

put the value of x in equation (ii)

2x + 5y = 178..............(ii)

2(4 + 6y) + 5y = 178

8 + 12y + 5y = 178

8 + 17y = 178

17y = 170

divide both sides by 17

y = 170/17

y = 10°

Put the value of y in equation (i)

2x - 12y = 8 ...................(i)

2x - 12(10) = 8

2x - 120 = 8

2x = 128

x = 128/2

x = 64°

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2 years ago
what is the value of the X variable in the solution to the following system of equations for 4x+ 2y =6 x-y=3
blagie [28]
X=1,y=1

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