3 years ago

The sum of two number is 91. The smaller number is thirteen less than the large number. Find both numbers.

1 answer:

7 0

What you would do is make the equation:
91=X+(X-13)
Then, you would solve for X and once you find X, you would subtract 13 from it.
The answers should be 52 and 39.

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Devon says that triangles TUV and XYZ are similar because TU/XY UV/YZ XZ/TV what is wrong with his reasoning?

jeka57 [31]

Answer:

Devon use $\frac{XZ}{TV}$ instead of $\frac{TV}{XZ}$ in his reason. So, we can say that triangles are not similar.

Step-by-step explanation:

If two triangles are similar then their corresponding sides are proportional.

If triangle TUV and XYZ are similar, then

$\frac{TU}{XY}=\frac{UV}{YZ}=\frac{TV}{XZ}$

The reason given be Devon is

$\frac{TU}{XY}=\frac{UV}{YZ}=\frac{XZ}{TV}$

He use the correct concept, that the corresponding sides of similar triangle are proportional. But he use $\frac{XZ}{TV}$ instead of $\frac{TV}{XZ}$ in his reason.

Therefore his reason is incorrect. So, we can say that triangles are not similar.

3 0

4 years ago

Read 2 more answers

Write the expression 2 x 8 + 20 - 12 ÷ 6 with parentheses and brackets two different ways so one value is less than 10 and the o

Marizza181 [45]

Greater than 50:

2 x (8 + 20 - 12 / 8) is 52

Less than 10:

2 x (8 +(20 - 12)) ÷ 6 is 5.33

4 0

3 years ago