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sasho [114]
3 years ago
5

Use mental math to solve for the missing number:

Mathematics
2 answers:
Vaselesa [24]3 years ago
8 0

Answer:

39

Step-by-step explanation:

Let the number be x.

The quotient of x and 3 is 13.

x/3 = 13

Multiply both sides by 3.

x = 13 × 3

x = 39

lora16 [44]3 years ago
5 0

Answer:

39

Step-by-step explanation:

The quotient of a number and 3 is 13. That's the same as saying n/3 = 13.

IF you multiply both sides of the equation by 3, you get n = 39, which is what we want.

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What is the rational number equivalent to 1 point 28 with a bar over 28? 1 and 6 over 97 1 and 28 over 99 1 and 8 over 33 1 and
katrin2010 [14]
In algebra, the conversion of a more complex number to a simpler mixed number is rather simple. For the repeated numbers, which are designated by the bar above them, we simply have to put over 9 for each number repeated and 0 for the non-repeated numbers.

In this item, we have 1.28 with bar above 28 signifying that the number can also be written as 1.28282828.... The mixed number is then equal to,
<em>1 and 28/99 or 1 and 28 over 99</em>

Therefore, the answer to this item is the second choice. 
7 0
3 years ago
Read 2 more answers
PLEASE HELP!! // True Or False ?
Nataliya [291]

Answer:

1. TRUE

2. False

3. TRUE

4. False

5. TRUE

6. False

Step-by-step explanation:

1. 6859^(1/3) = 19 = ∛(19^3)

__

2. 2197^(1/3) = 13 ≠ 9·2

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3. 8000^(1/3) = 20 = 10·2

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4. 9261^(1/3) = 21 ≠ 13

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5. 3375^(1/3) = 15 = 5·3

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6. 5832^(1/3) = 18 ≠ 3·7

7 0
3 years ago
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If you spun the spinner 100 times, how many times do you predict that you would spin a number less than 5 on a spinner of 1-6
Roman55 [17]

Answer:

67 times

Step-by-step explanation:

Spinner's sample space = (1, 2, 3, 4, 5, 6)

Number less than 5 = (1, 2, 3, 4)

Total possible outcomes = 6

Required outcome = 4

P(number less than 5) = required outcome / Total possible outcomes

P(number less than 5) = 4 /6 = 2/3

Number of spins = 100

Predicted Number of times a number less than less than 5 is spurn in 100 spins :

100 * 2/3

= 66.666

= 67 times

8 0
3 years ago
Which is the quotient of 17. 51 +3.4?
myrzilka [38]

Answer:

5.15

Step-by-step explanation:

17.51 / 3.4 = 5.15

7 0
3 years ago
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A donut store uses 7.7 kilograms of sugar each hour. How many kilograms of sugar will the store use in 7 hours?
-BARSIC- [3]

Answer:

53.9 Kilograms of sugar in 7 hours

Step-by-step explanation:

7*7.7=53.9

6 0
3 years ago
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