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4 years ago

Which expression is equivlent to 4(x+2y)

Mathematics

2 answers:

frez [133]4 years ago

5 0

Answer:

$\huge\boxed{4x+8y}$

Step-by-step explanation:

In order to find an expression equivalent to $4(x+2y)$ , we want to simplify the equation down.

To do this, we can see that we can apply the distributive property on this equation. Basically, we multiply every term in the parentheses by 4.

$4 \cdot x = 4x\\\\4 \cdot 2y = 8y\\\\4x+8y$

Hope this helped!

Dvinal [7]4 years ago

5 0

4x+8y because you must distribute the 4

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Jar one has 133 pennies. Jar 2 has 127 times jar one. How many pennies does jar 2 have?

goldfiish [28.3K]

Jar 2 has 16,891 pennies.
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3 years ago

Four brothers have ages which are consecutive even integers. If the product of the ages of the two middle brothers is 528, how o

exis [7]

Answer:

The oldest brother is of age $26$ years.

Step-by-step explanation:

As the age of four brothers are consecutive even integers.

We assume that the ages are $x,(x+2),(x+4),(x+6)$ as their respective ages.

And the age of the youngest brother $x$ yrs.

Age of the oldest brother $(x+6)$ yrs.

According to the question

Product of two middle brother that is $(x+2)(x+4) =528$

So we will arrange this in our equation and solve the quadratic.

$(x+2)(x+4) =528$

$x^{2}+4(x)+2(x)+8 =528$

$x^{2}+4(x)+2(x)+8-528=0$

$x^{2}+6(x)-520=0$

Solving the quadratic by using middle term splitting or directly with quadratic formula we can find the value of 'x' .

Here it is solved with quadratic formula:

Comparing with standard equation $ax^{2}+b(x)+c=0$ ,here $a=1,b=6\ and\ c=-520$ .

$x= \frac{-b \pm \sqrt{b^2-4ac} }{2a} = \frac{-6 \pm \sqrt{6^2-4\times \ (-520)} }{2\times 1}$

$x=20,-26$

We will work with the positive value of (x) so the the age of the youngest brother $=(x)=20$ yrs.

And the age of the the oldest brother $=(x+6)=(20+6)=26$ years.

The age difference is of $(26-20)=6$ years.

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4 years ago

I need help with this

Softa [21]

Nothing can be done with this question!

8 0

4 years ago

Each club member collected 15 boxes of recycling for community service. Let C represent the number of club members and T represe

Travka [436]

The answer is 15t = c

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4 years ago

Read 2 more answers

What is the answer for this question

Ugo [173]

Answer:

1 - 1/10

Step-by-step explanation:

As strange as it may seem, the easiest way to answer this question is to calculate the probability of selecting an elephant first and then to subtract this probability from 1:

Adding up the Numbers of animals, we get 12+4+3+11, or 30. The probability of selecting an elephant is thus 3/30, or 1/10.

Thus, the probability of NOT selecting an elephant is 1 - 1/10 (Answer A).

5 0

4 years ago