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2 years ago

Which of the following number sentences is an example of the associative property of multiplication?

Mathematics

2 answers:

koban [17]2 years ago

4 0

20 × (10 + 6) = (20 × 10) + (20 × 6)

(12 × 3) × 8 = 12 (3 × 8)

sertanlavr [38]2 years ago

3 0

Answer:

Option C and D are examples of associative property of multiplication.

Option A is examples of commutative property of multiplication.

Option B is normal multiplication.

Hope this helps!

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One coin in a collection of 65 has two heads. The rest are fair. If a coin, chosen at random from the lot and then tossed, turns

geniusboy [140]

Answer:

P=1/65.

Step-by-step explanation:

We knaow that one coin in a collection of 65 has two heads. If a coin, chosen at random from the lot and then tossed, turns up heads 6 times in a row. We calculate the probability that it is the two-headed coin.

We calculate the number of possible combinations:

$C_1^{65}=\frac{65!}{1!(65-1)!}=65$

Number of favorable combinations is 1.

Therefore, the probability is

P=1/65.

6 0

2 years ago

If 4m + 1 = 7 then 4m = 6

sergij07 [2.7K]

Answer:

2) Subtraction Property of Equality Properties

General Formulas and Concepts:

Pre-Algebra

Addition Property of Equality - Adding on both sides
Subtraction Property of Equality - Subtracting on both sides
Multiplication Property of Equality - Multiplying on both sides
Division Property of Equality - Dividing on both sides
Transitive Property - If a = b and b = c, then a = c
Symmetric Property - If a = b then b = a

Step-by-step explanation:

Step 1: Define

4m + 1 = 7 → 4m = 6

Step 2: Identify

We see that we subtracted on on both sides of the equation. Therefore, we would have to use the Subtraction Property of Equality. Therefore, 2 is our answer.

6 0

2 years ago

a recipe calls for 2 2/4 cups of raisins,but Julie only has a 1/4 measuring cup. how many 1/4 cups does Julie need to measure ou

kozerog [31]

Answer:

Step-by-step explanation:

Divide 2 2/4 cups of raisins by 1/4 cup:

10 cups

-------------

=============

1 cup

--------

Invert the divisor and then multiply:

10 cups 4

------------- · ---------- = 10

4 1 cup

Julie must measure out 10 of these 1/4-cup measures (of raisins).

7 0

2 years ago

Use the ruler to find 1 / 1/10 and 4 1/10

Korvikt [17]

Answer:

the first answer is 10 and the second is 40

Step-by-step explanation:

there actually asking how many meters would make 1 centimeter

On the ruler 1 whole centimeter is 10 meter. (The longer line behind the number is the 10th meter )

Dividing fractions

1 ÷ 1/10

Steps

Change the whole number which is 1 into a fraction.

1/1 ÷1/10

Flip the second fraction in the equation.

1/1 ÷ 10/1

Then change the division sign to a multiplication sign. So were multiply instead.

1/1 × 10/1

Multiply the fractions and your answer should be 10/1 .

This fraction is also changed to a whole number.

10/1 = 10

6 0

2 years ago

What is the ratio of one hour to 600 seconds?

Marat540 [252]

Answer:

6:1

Step-by-step explanation:

1 hr= 60 minutes

60 minutes= 3600 seconds

3600:600

36:6

5 0

2 years ago

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