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irina1246 [14]
3 years ago
11

A number is increased by 35%. The result is 324

Mathematics
1 answer:
stich3 [128]3 years ago
3 0

Answer:

240.74

Step-by-step explanation:

y=±x*\frac{100+p}{100}

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The price of a plane ticket has increased from $150 to $200. By what percent has the price increased?
Maslowich

Answer:

It has increased 33%

5 0
4 years ago
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M is directly proportional to r2.when r=2,m=14.Work out the value of r when m =224
balandron [24]
<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ M = k x r^2

Substitute in the values:

14 = k x 2^2

Divide both sides by 2^2 to find k:

k = 3.5

Substitute the new values in:

224 = 3.5 x r^2

Divide both sides by 3.5 to find r^2

r^2 = 64

Square root it:

r = 8

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6 0
3 years ago
Susie collected data on the favorite type of music of the students of two grades. The table below shows the relative frequencies
svp [43]

Answer:

In Grade 9, 20% of students liked classical music.

Step-by-step explanation:

Your table was hard to decipher, so I have recreated it here.

\begin{array}{c|cccc}&\text{Pop}&\text{Classical}&\text{Heavy Metal}&\text{Total}\\\text{Grade 8}&0.50&0.10&0.40&1.00\\\text{Grade 9}&0.53&0.20&0.27&1.00\\\text{Total}&0.36&0.32&0.32&1.00\\\end{array}

(a) In Grade 9, 53 students liked pop music.

FALSE. 53 % of the students liked pop music. We don't know how many students there were.

(b) In Grade 8, 60% of students liked heavy metal.

FALSE. 40 % of students liked heavy metal.

(c) In Grade 8, 10 students liked classical music.

FALSE. We don't know how many students there were.

(d) In Grade 9, 20% of students liked classical music.

TRUE. 0.20 means 20/100 or 20 %.

4 0
4 years ago
A television costs $450. During a special sale, it’s marked 1⁄3 off. What’s the sale price of the TV?
marusya05 [52]
Answer:

450×(2/3)=$300
8 0
3 years ago
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Given a possible triangle abc with a=16, b=25 a=22 find a possible value for b round to the nearest tenth.
Stells [14]
We can use the Sine Law:
a / sin A = b / sin B
16 / sin 22° = 25 / sin B
16 / 0.3746 = 25 / sin B
sin B = 25 · 0.3746 / 16
sin B = 0.5853
∠B = sin^(-1) 0.5853
∠B = 35.83° ≈ 35.8°
Answer: b. 35.8°
4 0
4 years ago
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