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Ulleksa [173]
3 years ago
6

A plane has fees for 420 passengers 15% of the seats are empty how many passengers are on the plane​

Mathematics
1 answer:
serious [3.7K]3 years ago
3 0

Answer:

357 passengers

Step-by-step explanation:

\frac{x}{420}=\frac{85}{100} (The \frac{85}{100} is 85% of the 100% people because 15% is missing)

When you cross-simplify you get: \frac{x}{21}=\frac{85}{5} which is \frac{x}{21}=17

Finally, multiply 17 by 21 to get x.

Therefore, x=357

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Find the sum of 24/5 + 13/9
bearhunter [10]
Mixed Number Form: 6 11/45
Exact Form: 281/45
5 0
3 years ago
Simplify the expression below. (–7x + 4) – (2x – 8)
Elanso [62]

Answer:

- 9x + 12

Step-by-step explanation:

Given

(- 7x + 4) - (2x - 8) ← distribute parenthesis by 1 and - 1

= - 7x + 4 - 2x + 8 ← collect like terms

= - 9x + 12

5 0
3 years ago
? Write 126 as a product of primes. Use index notation when giving your answer.​
Talja [164]

Answer:

2 x 7 x 3²

Step-by-step explanation:

When finding primes, you use the method I attatched as a picture. Start with the large number at the top, slowly dividing it by factors of it.

The picture shows that the primes 126 is a product of is:

2, 7, 3, 3

Or:

2 x 7 x 3 x 3

This can be simplified into:

2 x 7 x 3²

Hope this helps!

7 0
3 years ago
Read 2 more answers
The perimeter of a rectangular field is 340 yards. The length is 90 yd longer than the width. Find the dimensions.
Alexus [3.1K]

Answer:

length= 100 width=70

Step-by-step explanation:

The perimeter of a rectangular field is 340 yds.  

The length is 30 yds longer than the width.  

2(l + w) = 340

l + w = 170

w + 30 + w = 170

2w = 140

w = 70

Hence the dimensions:

Length: 100 yds.

Width: 70 yds.

8 0
3 years ago
Read 2 more answers
If 25% of 150 is equal to 700 percent of n, then what number is n equal to?
Mrrafil [7]

Step-by-step explanation:

"Of" means multiplication, and percent means out of 100.

25/100 × 150 = 700/100 × n

75/2 = 7n

n = 75/14

n ≈ 5.357

3 0
4 years ago
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