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2 years ago

In triangle ABC the measure of A is 33° and the measure of C is 90° . what is the measure of B

Mathematics

1 answer:

Masteriza [31]2 years ago

6 0

Answer:

57°

Step-by-step explanation:

ALL angles in a triangle add up to 180°

SO, if we know the sum of two angles which is 123° (why: 33+90=123), all we have to do is subtract this number from 180 to get the measure of the 3rd angle. Which in this case is 57°

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URGENT!! Really need help on this test

Anuta_ua [19.1K]

Answer:

x=17

Step-by-step explanation:

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2 years ago

A box contains 81 coins, only dimes and nickels. The amount of money in the box is $5.30. How many dimes and how many nickels ar

Ksivusya [100]

Answer:

25 dimes
56 nickels

Step-by-step explanation:

Let d represent the number of dimes. Then 81-d is the number of nickels and the total value in cents is ...

10d +5(81-d) = 530

5d +405 = 530 . . . eliminate parentheses

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d = 25 . . . . . . . . . subtract 81; number of dimes

81 -d = 81 -25 = 56 . . . . . number of nickels

There are 25 dimes and 56 nickels in the box.

_____

<em>Comment on the method of solution</em>

It usually works well to let the variable represent the amount of the highest-value contributor (dimes). This keeps the numbers positive as the solution progresses.

5 0

2 years ago

Help! also please show work (and what letter it is A,B,C, or D).

frozen [14]

Answer:

this angle is 90°.

5x°+55°=90°

5x=90°-55°

5x=35°

x=35/5

x=7

8 0

2 years ago

Find the the measure of angle 1

raketka [301]

Answer: 60 degrees

Step-by-step explanation:

It’s a straight line, which means it’s 180 degrees

The angle of one side is given; which is 120 degrees

Now, we just need to subtract it from 180 to get the other angle

180-120 = 60 degrees

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3 years ago

In triangle ABC the measure of A is 33° and the measure of C is 90° . what is the measure of B​

In triangle ABC the measure of A is 33° and the measure of C is 90° . what is the measure of B