Let us start with the unknown. Let us give one of the base angles the value of x. The other base angle is also x since both the base angles in an isosceles triangle will be equal. The remaining angle is 40 more than three times one of the base angles.It is 3x + 40. Here we get the equation

x+x+3x+40=180

5x + 40 = 180

5x = 180 - 40 = 140

Therefore x = 140/5 = 28

So the angles are 28, 28 and 124.

The third angle is 3 times 28 + 40 = 84 + 40 = 124.

5 0

3 years ago

miranda went to the music store to purchase some items. the sales tax was 5 percent per item. if she bought a dvd for $19, how m

posledela

$19/1.05= $18.095 rounds to $18.10
The sale tax on the item is $0.90

3 0

3 years ago

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Find the value of x such that l ⊥ m. A) 10.7 B) 16 C) 46 D) 48

dsp73

Answer:

Step-by-step explanation:

The diagram lacks the appropriate figure. Find the figure attached. If the line I is perpendicular to m, this means that the sum of the given angles will be equal to 90° as shown;

(3x+5)° + 37° = 90°

open the parenthesis

3x+5 + 37° = 90°

3x+42 = 90

subtract 42 from both sides of the equation

3x+42-42 = 90-42

3x = 48

Divide both sides of the resulting equation by 3;

3x/3 = 48/3

<em>Hence the value of x is 16°</em>

4 0

3 years ago

The value of a ratio is __________.

Korolek [52]

Answer:

Step-by-step explanation: The value of a ratio is the quotient of the two quantities in the ratio.

6 0

3 years ago