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3 years ago

Solve the proportion b/25 = 24/75

Mathematics

1 answer:

kipiarov [429]3 years ago

4 0

B=72 75 divided by 25 is 3.. 3x24=72… pretty sure it’s right that’s how I was taught to sole these equations

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For this item, any answers that are not whole numbers should be entered as a decimal, rounded to the tenths place. Brian's schoo

LenaWriter [7]

Answer:

The probability that the locker code begins with a prime number is 40%.
The probability that the last digit of the locker code is an odd number is 40%

Step-by-step explanation:

Prime numbers are the numbers that only divide with 1 or itself. So in this case it is 5 and 7.

The possible combinations are

1*4*3 (with 5) + 1*4*3(with 7) = 24

Total combinations are 5*4*3=60

(24/60)*100 = 40 %

2. Odd numbers are those which don't divide with 2. So in this case it is 6 and 8.

The possible combinations are

1*4*3 (with 6) + 1*4*3(with 8) = 24

Total combinations are 5*4*3=60

(24/60)*100 = 40 %

3 0

3 years ago

How do you find the answer?

Jet001 [13]

1)Sin(29)=x/(30cm)
x=Sin(29)30cm
so be A is correct.
2) Cos A= a/b is correct because it is not true according to triangle.
feedbacks!

6 0

3 years ago

Heidi has $4.55. She needs to buy bolts at the hardware store. Bolts cost $0.13 each.

MrRa [10]

Divide 4.55 by 0.13 (the cost of each bolt) to find out how many bolts Heidi can buy!

$4.55 ÷ $0.13 = 35

Heidi can buy 35 bolts with $4.55 !1

3 0

3 years ago

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How do u write d dozen eggs in a numerical or varoable expression?

FromTheMoon [43]

<span>Numeral expression is composed of numeric constants and operation while variable expression consist of both numeric and variables constants.
d dozen of eggs converted to numerical or variable expression:
=> There are 12pieces of eggs in 1 dozen, so that is 12x1=12
=> Therefore, the numerical value is 12 x d or simply 12d </span>

7 0

4 years ago

A prior study determined the point estimate of the population proportion as 23% ( = 0.23). The analysts want to conduct a second

Flura [38]

We have:

z-score = 2.58
Proportion, p = 0.23
q = 1 - 0.23 = 0.77
Margin of error, E = 17% = 0.17

Step 1:
Multiply $p$ by $q$ = 0.23 × 0.77 = 0.1771

Step 2:
Divide z-score by the margin error = 2.58 ÷ 0.17 = 15.2

Step 3:
Square the answer from step 2 = 15.2² = 230.32

Step 4:
Multiply the answer from Step 1 by the answer in step 3
= 0.1771 × 230.32 = 40.79

The answer is the sample size is 40.79 rounded to 41

Answer: Last Option

8 0

3 years ago

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