3 years ago

3 times the difference between ten times a number and three is eighty one? Find the number

Mathematics

1 answer:

bixtya [17]3 years ago

7 0

{x 187394hours ,243}

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Please answer this :(

mojhsa [17]

Answer:

68.9°

Step-by-step explanation:

Using Sine rule

x/sin X = y/sin Y

4.5/sin X = 4/sin 56

sin X × 4 = 4.5 × sin 56

sin X = 4.5 × sin 56/4

X = arc sin (4.5 × sin 56/4)

X = 68.85449°

Approximately = 68.9°

4 0

3 years ago

a fan has five equally spaced blades. suppose you line up two fans directly on top of each other. What is the least number of de

Irina18 [472]

Answer:

72°

Step-by-step explanation:

There are 5 blades, equally spaced. So the angle between adjacent blades is 360° / 5 = 72°. So you can rotate the fan 72° and the blades will align again.

7 0

3 years ago

Barbara found that 35 of the 60 people she surveyed had pets. About what percent of the students she surveyed had pets?

Sergio [31]

Answer:

35/60 = 0.583333333

= 0.58

0.58 * 100 = 58

58%

7 0

3 years ago

Read 2 more answers

What is 5d - 10 = 20

algol [13]

Answer:

d=6

Step-by-step explanation:

move all terms that don't contain d to the right side and solve.

6 0

3 years ago

Read 2 more answers

Which is the graph of the equation y - 1 = 2/3 (x - 3)?

mars1129 [50]

Answer:

Hope it help u

Step-by-step explanation:

6 0

2 years ago