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slamgirl [31]
3 years ago
5

If the measure of ZBEC is (2x+3)° and x = 30, which expression could represent the measure of ZAED?

Mathematics
1 answer:
rewona [7]3 years ago
5 0

Answer:

3x-27

Step-by-step explanation:

<BEC=<AED

Substituting x=30 in the expression 2x+30

2x+3=2(30)+3=63

The expression 3X-27 is also

3(30)-27=63

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A line passes through (10,7) and has a slope of 1/2. Write an equation in slope- intercept form for this line.
Alinara [238K]

Answer:

y=1/2x+2

Step-by-step explanation:

first do 7=1/2(10)+b then after simplifying it you het 7=5+b then subtract 5 from both sides and you get 2=b

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2 years ago
4 1/2 ​ ÷(−1 3/7​ ) please help and hurry
myrzilka [38]

Hi! I'm happy to help!

To first solve this, we need to make those mixed numbers improper fractions.

To make 4 1/2 an improper fraction, you have to turn 4 into halves (multiply four by 2) then add the extra half, giving you 9/2.

\frac{9}{2}​ ÷(−1\frac{3}{7}​ )

Now, we turn 1 3/7 into an improper fraction. We turn 1 into sevenths (multiply 1 by 7) then add the other 3 sevenths, giving you 10/7.

\frac{9}{2}​ ÷(−\frac{10}{7}​ )

From here, we need to turn this problem into a multiplication problem in order to solve. Since multiplication is the opposite of division, we need to get the opposite of something, so we use our second fraction and flip it.

\frac{9}{2}​ ×(−\frac{7}{10}​ )

Now, we multiply the top by the top, and the bottom by the bottom. (any positive multiplied by a negative gives a negative)

-\frac{63}{20}

<u>Since we cannot simplify, our final answer is -63/20.</u>

I hope this was helpful, keep learning! :D

6 0
2 years ago
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3 years ago
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sammy [17]

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First find the rate for a year .

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31 250 × 20 = 625000

5 0
2 years ago
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Please someone explain this
vampirchik [111]

Answer: 68

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