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4 years ago

Choose the property that justifies the outcomes.

1 answer:

8 0

It's obviously going to be a multiplication property, because multiplication is being used here.
It's not multiplicative inverses. (this is when two numbers, specifically something like 2 and 1/2, multiply to make 1)
It's also not the distributive property. An example of that would be if you had 5(3+8) and you multiplied the 5 into each term inside the parentheses to get 15+40.
The correct answer would be the associative property of multiplication, which states that you can multiply numbers together in any order. Here, we have 5 times (3 times 8), but the parentheses can be ignored because of this property. Then we would go ahead and just do the 5 times 3 to get the 15×8.

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How many whole sandwiches can be made with 2 pounds of cheese if each sandwich has 3 ounces of cheese on it

mariarad [96]

10 whole sandwiches can be made with 2 pounds of cheese if each sandwhich has 3 ounces of cheese on it.

2 pounds = 32 ounces

32/3 = 10.67

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4 years ago

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If u is a unit vector, find u · v and u · w. (assume v and w are also unit vectors.) equilateral triangle

serg [7]

solution:

we know that ,

u.v = ΙuΙ ΙvΙcosθ

here,

θ =60° (since the given triangle is equilateral triangle)

u.v = ΙuΙ ΙvΙcos60°

= 1 x 1 x 1/2

u.v = 1/2

now, u.w = ΙuΙ ΙwΙcosθ

= ΙuΙ x cos(60x2)

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4 years ago

Determine each unit price to the nearest cent. Which deal gives the lowest unit price. Show your thinking.

Morgarella [4.7K]

You would do 12 divided by 25 which equals 0.48 and keep on doing that the next one is 0.52 and last is 0.53 meaning the best is the 12 muffins

8 0

3 years ago

Read 2 more answers

(-----×1/4)÷6×3/9 I need the step to this problem so that I explain to my grandson how he he gets the answer

lesya692 [45]

Answer:

-----×1/72

Step-by-step explanation:

The order of operations says do these operations in order left to right. Please note that ÷ means the same as / unless you define it otherwise in your problem statement.

If you intend the ÷ symbol to be used to indicate everything to its left is divided by everything to its right, it is appropriate to use parentheses for that grouping, as in ...

(-----×1/4)÷(6×3/9) = (-----×1/4)÷2 = -----×1/8

_____

Here, we're going to evaluate what you have written according to the usual rules as described above.

(-----×1/4)÷6×3/9 = -----×1/24×3/9 = -----×(3/24)/9

= -----×1/8/9

= -----×1/72

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Comment on the arithmetic

Fractions are multiplied and divided in the usual way:

a/b×c = (a×c)/b

a/b/c = (a/b) × (1/c) = a/(b×c)

___

Comment on fractions and parentheses

Please note that parentheses are required on any numerator or denominator that consists of anything other than a single number or variable. (The exception is the case where the numerator is a product, because a·b/c = (a·b)/c with or without the parentheses.)

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4 years ago

Connie deposits $30 into an account. The value of the account, in dollars, can be modeled as V (t) = 30(1.05), where t is the ti

Lady bird [3.3K]

Answer:

Step-by-step explanation:

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4 years ago