2 years ago

Please help!!! And please ignore the letters at the bottom:)

Mathematics

2 answers:

Eduardwww [97]2 years ago

5 0

13) 9x+9
14) 7x
15) 10x + 50
16) 4x + 15
17) 5x + 26
18) 6 3/5x - 12
19) 2.8x - 7.56
20) 3 1/3x + 1/6

Kruka [31]2 years ago

4 0

Get multi calculator you can scan those problems and it gives you the awnser

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Kyle was given the following question to solve.

Step2247 [10]

Answer:

Step 1

Step-by-step explanation:

The first step of the problem instantly shows a mistake. The gloves are 4% off of $30, not $4 off. Instead, the first step should be $30 - $1.2

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2 years ago

Recall that for use of a normal distribution as an approximation to the binomial distribution, the conditions np greater than or

vagabundo [1.1K]

Answer:

The minimum sample size needed for use of the normal approximation is 50.

Step-by-step explanation:

Suitability of the normal distribution:

In a binomial distribution with parameters n and p, the normal approximation is suitable is:

np >= 5

n(1-p) >= 5

In this question, we have that:

p = 0.9

Since p > 0.5, it means that np > n(1-p). So we have that:

$n(1-p) \geq 5$

$n(1 - 0.9) \geq 5$

$0.1n \geq 5$

$n \geq \frac{5}{0.1}$

$n \geq 50$

The minimum sample size needed for use of the normal approximation is 50.

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2 years ago

CONVERT THE PERCENTAGES FRACTION 120%

damaskus [11]

Answer:

$\frac{6}{5}$

Step-by-step explanation:

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2 years ago

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Water bowls at 212 degrees Fahrenheit. If a pot of water is 145 degrees, find the change in temperature needed for the water to

Bogdan [553]

It would need to increase 67 degrees

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2 years ago

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Kiran has used `\frac{4}{5}`of the pieces in his jigsaw puzzle. He has used 120 pieces. How many pieces are in the whole puzzle?

Yuki888 [10]

Answer: 150 pieces

Step-by-step explanation:

Kiran has used 4/5 of the pieces of the puzzle.

This number translates to 120 pieces.

Assuming the total number of pieces is x, the formula for the total number is:

4/5x = 120

x = 120 ÷ 4/5

x = 120 * 5/4

x = 150 pieces

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2 years ago