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2 years ago

Find the value of x. Question 4 options: 20 25 18. 75 22. 5.

Mathematics

1 answer:

Galina-37 [17]2 years ago

6 0

I think the value of x in my opinion is is 25 but in my opinion like that

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What is the slope of the line below?

RUDIKE [14]

Answer:

6/5

Step-by-step explanation:

I hope that it's a clear solution.

8 0

3 years ago

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Guys please help i’m nearly on 23% and i need to get to 82%- giving brainlest

liberstina [14]

Add the numbers they equal 30 then u divide 30 by 2 since it’s an odd number and you get 15. so 15 is your answer

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3 years ago

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Anna enjoys dinner at a restaurant in Washington DC where the sales tax on meals is 5%. She leave a 20% tip on the price of her

Maru [420]

Answer:

52.40

Step-by-step explanation:

Discussion

Suppose the meal starts out as x.

She pays 5% of x as a sales tax

So that brings the total up to 100% + 5% = 105%

Before paying, she pays 20% on x as her tip. The tax does not touch the tip.

So that brings the total up to 100% + 5% + 20% = 125% of this is based on x, the cost of the meal.

So 125% of x = 65.50 change the % to a fraction

125/100 * x = 65.50 Multiply both sides by 100/125

125/100 * 100/125x = 100/125 * 65.50

x = 100/125 * 65.50 Multiply by 100

x = 6550 / 125 Divide by 125

Check

Tax = 5% * 52.40 = 5/100 * 52.40 = 2.62

Tip = 20%*52.40 = 20/100 * 52.40=10.48

Meal = 52.40

Total 65.50 Just as it should

8 0

3 years ago

John played a note on his tuba that vibrated the air 120 times per second. If you play the note for 4 seconds, how many times in

Zigmanuir [339]

480

This is this awnser because its 120 a second, for 4 seconds so 4 times 120 = 480.

4 0

3 years ago

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Jim Tree sells trees. The mean length of the trees purchased was 68 inches with a standard deviation of 10 inches. Jim wants to

Zepler [3.9K]

Step-by-step explanation:

We know that,

$Z=\dfrac{X-\mu}{\sigma}$

Where,

X = raw score = 84

μ = mean = 68

σ = standard deviation = 10

Putting the values,

$Z=\dfrac{84-68}{10}=1.6$

The percent of his sales that were less than or equal to 84 inches, is

$P(Z\leq 1.6)=0.9452=94.52\%\approx 94.5\%$

Therefore, the remaining 100-94.5=5.5% were more than 84 inches.

4 0

3 years ago