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malfutka [58]
3 years ago
12

What is 21% of 30? I’m learning some fractions that I wouldn’t normally do so I can practice for my upcoming test.

Mathematics
2 answers:
Pani-rosa [81]3 years ago
4 0

Answer:

6.3

Step-by-step explanation:

21% = 0.21

Multiply the percentage converted into decimal by the number 30.

0.21 * 30 = 6.3

Mekhanik [1.2K]3 years ago
3 0

Answer:

6.3

Step-by-step explanation:

I looked it up sorry ok ok ok

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Self-Check<br> Practice Exercise 4
ryzh [129]

Answer:

A= Congruent

B= Supplementary

C= Congruent

D= Congruent

E=Supplementary

Step-by-step explanation:

5 0
4 years ago
Can someone help me? After I figure out the sequence i have to write the formula. please help.
sveta [45]

Rewrite the fractions to have a common denominator to find the difference:

2/3 = 4/6

Difference = 4/6-5/6 = -1/6

Sequence formula = an = a1 + d(n-1)

A1 is the first term 5/6

And d = -1/6

Sequence = 5/6 -1/6(n-1)

Simplify to get an =(-n +6)/6

3 0
3 years ago
3. "A boat travels 160 miles in 5 hours. What is the
8090 [49]

Answer:

3. = 32 4. = 54 min

Step-by-step explanation:

4 0
2 years ago
The power, P (watts) , of a car engine is proportional to the square of its speed, s ( m / s ) . When s = 30 , P = 1260 . Work o
Lapatulllka [165]

Answer:

875 Watts

Step-by-step explanation:

Given that :

P α s²

P = ks²

Where k is the proportionality constant

When ; p = 1260 ; s = 30

1260 = k * 30²

1260 = 900k

k = 1260 / 900

k = 1.4

Value of p ; when s = 25

P = 1.4 * s²

P = 1.4 * 25²

P = 1.4 * 625

P = 875 watt

6 0
3 years ago
A computer is normally $550 but is discounted to $385. What percent of the original price does Mark pay?
Lemur [1.5K]
Hi!

Use The Percentage Formula To Solve:

385 ÷ 550 * 100 = 70

Mark pays 70% of the original price.
3 0
3 years ago
Read 2 more answers
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