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2 years ago

49% of a number is 35. Find 21% of that number.

Mathematics

2 answers:

Mariulka [41]2 years ago

7 0

IT IS 7.35 sooooo yeah

Leno4ka [110]2 years ago

4 0

Answer:

the answer is 7.35

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A communications tower is supported by two wires, connected at the same point on the ground. One is attached to the tower at D a

viktelen [127]

Answer:

10.99 m

Step-by-step explanation:

✍️What we are basically asked to solve here is to find the distance between C and D.

To find CD, find the length of BC, and BD. Their difference will give us CD.

Thus, BC - BD = CD.

✍️Finding BC using trigonometric ratio formula:

$\theta = 30 + 10 = 40$

Opposite side = BC = ??

Adjacent side = 42 m

Thus:

$tan(\theta) = \frac{opposite}{adjacent}$

Plug in the values

$tan(40) = \frac{BC}{42}$

Multiply both sides by 42

$tan(40) \times 42 = \frac{BC}{42} \times 42$

$35.24 = BC$

BC = 35.24 m

✍️Finding BD using trigonometric ratio formula:

$\theta = 30$

Opposite side = BD = ??

Adjacent side = 42 m

Thus:

$tan(\theta) = \frac{opposite}{adjacent}$

Plug in the values

$tan(30) = \frac{BD}{42}$

Multiply both sides by 42

$tan(30) \times 42 = \frac{BD}{42} \times 42$

$24.25 = BD$

BD = 24.25 m

✍️How much below the top of the tower is the shorter one attached:

Thus,

BC - BD = CD

35.24 m - 24.25 m = 10.99 m

7 0

2 years ago

What is the solution to the equation x/4 = 6/12?<br><br> x = 1<br> x = 2<br> x = 4

Eddi Din [679]

It is x=2 because 12 into 4 is 3 so 6 into 3 is 2

5 0

2 years ago

Read 2 more answers

A rectangle board is 1.2 meters long and 0.8 meters wide. What is the area of the board in millimeters

ivanzaharov [21]

Answer:

1200*800 = 960,000 mm²

Step-by-step explanation:

1 meter is 1000 mm and 0.8 meter is 800 mm

A=lw

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2 years ago

If the sales tax on 150 is 7.50, what is the percent of sales tax?

Solnce55 [7]

5 percent is the answer.

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2 years ago

2. The student council is sponsoring a concert as

Jlenok [28]

Answer:

80 adults must addent to make a complete $1,000

Step-by-step explanation:

You start with the students, $3 for each and 200 of them attend. 3x200=600 dollars in total. Then you would subtract 600 from 1,000. Next you will do the adults, 5x80=400 (The "leftover" cash) $5 for each times 80 adults will be $400 in total.

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2 years ago