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3 years ago

Which is a simplified form of the expression 2(y + 1) + 2(y – 2)? A. 2y + 1 B. 4y – 2 C. 2y – 1 D. 4y – 3

Mathematics

2 answers:

ivanzaharov [21]3 years ago

6 0

Answer:

B) 4y-2

Step-by-step explanation:

2(y+1)+2(y-2)

2y+2+2y-4

2y+2y+2-4

4y+2-4

4y-2

NNADVOKAT [17]3 years ago

3 0

It’s B because when simplified it’s 2y+2+2y-4 then you add like terms and it becomes 4y-2 which is B

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Find the value of x. A. 3 B. 2 C. 6 D. 5

solmaris [256]

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4 years ago

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At Billy‘s preschool they have bicycles and tricycles with a total of 57 wheels. The number of bicycles is three less than three

ikadub [295]

Use b for bicycles b and t for tricycles.

We know that each bicycle has 2 wheels, and each tricycle has 3 wheels, and if the entire number of wheels is 57, that means the

equation would be: 2b + 3t = 57

We can "separate" b by calling it "25 - t" as an alternative,

2(25 - t) + 3t = 57, or

50 - 2t + 3t = 57,

or 50 + t = 57, so

t = 7 So there must be 18 bicycles and 7 tricycles.

CHECKING:You can check this out by multiplying 7 tricycles x 3 wheels, which is 21,

and 18 bicycles x 2 wheels, which is 36

36 + 21 = 57

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3 years ago

Which story problems could be solved using the given equation? Choose exactly two answers that are correct. A. Lucas needs a woo

Sati [7]

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3 years ago

You invest $5000 in an account at 5.5% per year simple interest. How much will you have in the account at the beginning of the 6

NeX [460]

Answer:

The amount in the account in the beginning of the 6th year is $6375 .

Step-by-step explanation:

Formula

$Simple\ interest = \frac{Principle\times Rate\ times Time}{100}$

As given

You invest $5000 in an account at 5.5% per year simple interest.

Principle = $ 5000

Rate = 5.5 %

Time = 5 years

(As calculate amount in the account for beginning of 6th year.)

Putting all the values in the formula

$Simple\ interest = \frac{5000\times 5.5\times 5}{100}$

$Simple\ interest = 50\times 5.5\times 5$

Simple interest = $ 1375

Amount = Principle + Simple interest

Putting values in the above formula

Amount = $5000 + $1375

Amount = $ 6375

Therefore the amount in the account in the beginning of the 6th year is $ 6375 .

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3 years ago