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3 years ago

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Mathematics

1 answer:

True [87]3 years ago

5 0

Answer:

$699.98

Step-by-step explanation:

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frutty [35]

Answer:

Step-by-step explanation:

10 cubic feets volume is equivalent to 25.85 inches.

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3 years ago

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Suppose the number of gallons of gasoline per day used by a car is normally distributed with a mean of 2.2 gallons and a standar

Inga [223]

The z-score counts the number of standard deviations from the mean. Then the meaning in gallons of a difference in z-score is found by multiplying the z-score difference by the value of a standard deviation.

(3 -0)*1.2 = 3.6 . . . . gallons.

The 3rd selection is appropriate.

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3 years ago

What is the y-coordinate of the solution to the system of equations?

Nimfa-mama [501]

Answer:

The answer is 5.

Step-by-step explanation:

I got it right before.

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3 years ago

In basketball, some baskets are worth 2 points. Others are worth 3 points. In 1 game the ratio of 3 point baskets to 3 point tri

andrey2020 [161]

Answer:

Step-by-step explanation:

ratio of baskets to tries = 5:7

if 45 baskets are made, how many tries?

5 : 7

45 : x

we cross multiply

5x = 45*7

x = 63 potential points from trials

since each try is worth 3 points, 63/3 = 21

They had 21 3-point tries

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3 years ago

Mary has 200ml of hand sanitizer that is 15% alcohol. She mixes it with 200ml of a

11Alexandr11 [23.1K]

Answer:

(370-2x)ml

Step-by-step explanation:

We are given that

In first hand sanitizer

Total solution=200ml

Alcohol=15% of 200ml

Alcohol= $\frac{15}{100}\times 200=30ml$

In second hand sanitizer

Solution=200 ml

Alcohol=x% of 200 ml

Alcohol= $\frac{x}{100}\times 200=2x ml$

We have to find the water in the resulting mixture of hand sanitizers.

Total solution of two hand sanitizers=200+200=400ml

Total alcohol in two hand sanitizers=(30+2x)ml

Water in two hand sanitizers=400-(30+2x) ml

Water in two hand sanitizers=400-30-2x ml

Water in two hand sanitizers=(370-2x)ml

Hence, water in the resulting mixture of hand sanitizers=(370-2x)ml

7 0

3 years ago