Find the values of x and y

Mathematics

2 answers:

valentina_108 [34]4 years ago

8 0

Answer:

The answer to your question is x = 90°, y = 43°

Step-by-step explanation:

We can observe that it is an isosceles triangle because two sides have the same length.

In an isosceles triangle, 2 angles measure the same: ∠B = ∠C.

- The sum of the internal angles in a triangle equals 180°.

∠D = 90°

∠A + ∠D + ∠C = 180

∠A + 90° + 47° = 180°

∠A = 180 - 90 - 47

∠A = 43°

y = 43°

Angle x is a right triangle = 90°

LenaWriter [7]4 years ago

7 0

Answer:x= 90 degrees

y = 43 degrees

Step-by-step explanation:

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3 years ago

Bill and Mary Ann went to the Viola bakery. Bill bought 5 pies and 7 donuts for $12.65. Mary Ann bought 6 of each for $12.30.

sweet [91]

Answer:

Pies=$0.85

Donuts= $1.20

Step-by-step explanation:

In the equation let p stand for the number of pies and d stand for the number of donuts.

To solve this set up 2 equations, one representing bill and the other representing Mary Ann.

Bill's equation is 5p+7d=$12.65.
Mary Ann's equation is 6p+6d=$12.30

Then solve using a system of equations. Systems of equations can be solved using elimination or substitution. I will use substitution. Solve bill's equation for p. This gives you $p=\frac{12.65-7d}{5}$ . Then, you can substitute that into Mary Ann's equation. This looks like $6\cdot \frac{12.65-7d}{5}+6d=12.3$ . Solve for d. Once you solve d=1.20. Finally, substitute 1.20 back into either Bill's or Mary Ann's for d and solve for p. No matter which equation you use p=0.85.