Plzzzzz helps meee I don’t get this

Mathematics

1 answer:

Inessa05 [86]2 years ago

4 0

1 way : 10d + 2d

another way: 5d + 5d + 2d

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How do you turn -8/9 into a decimal and percent?

monitta

You need to divide the numerator by the denominator so it should be 8 divided by 9 to turn it into a percent multiply the decimal you get by 100. Hope this helps!

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3 years ago

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Solve the inequality -5/7 - 6/7z < -2/7

viktelen [127]

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2 years ago

What do you know to be true about the values of a and b

sesenic [268]

9514 1404 393

Answer:

D. Can't be determined

Step-by-step explanation:

You know that the sum of angles in a triangle is 180°, so ...

a + x + 60 = 180

b + y + 40 = 180

Then the difference between 'a' and 'b' is ...

a - b = (120 -x) -(140 -y) = y -x -20

Since the values of x and y are unknown, the relative values of a and b cannot be determined.

Additional comment

If you know the triangles are similar (or congruent) and that the relative angle sizes are as they appear to be, then you could say a=b. There is nothing in this problem statement to indicate that is the case.

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2 years ago

Solve the system using elimination.

JulsSmile [24]

The solution is (1,0)

Explanation:

The two equations are $3x+16y=3$ and $3x-16y=3$