MATHEMATICS MIDDLE SCHOOL

Kelly has 4 dimes and some nickels. The total value of her coins is $2.25. Write an equation for this.

Answers

Answer 1

Answer:

Answer:

$40+5x=225$

Step-by-step explanation:

We know that

1 dime = 10 cents

1 nickel = 5 cents

1 dollar = 100 cents

It is given that Kelly has 4 dimes and some nickels.

Let x be the number of nickels.

$\text{Total value}=4(10)+x(5)$

$\text{Total value}=40+5x$ ... (1)

The total value of her coins is $2.25.

Total value = $2.25 = 225 cents ...(2)

From (1) and (2) we get

$40+5x=225$

$5x=225-40$

$5x=185$

$x=37$

The number of nickels is 37.

Hence, the required equation is 40+5x=225.

Answer 2

Answer: total = value of nickels(n) + value of dimes
2.25 = 0.05n + 0.40

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1+4=5
2+5=12
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8+11=?

Answers

Nice question! The rule is:

a + b = a(b + 1)

So...

1 + 4 = 1(4 + 1) = 1(5) = 5

2 + 5 = 2(5 + 1) + 2(6) = 12

3 + 6 = 3(6 + 1) = 3(7) = 21

8 + 12 = 8(12 + 1) = 8(13) = 104

The answer is 104.

How to rewrite decimals to fractions before adding

Answers

Step 1: Write down the decimal divided by 1, like this: decimal/1Step 2: Multiply both top and bottom by 10 for every number after the decimal point. (For example, if there are two numbers after the decimal point, then use 100, if there are three then use 1000, etc.)Step 3: Simplify (or reduce) the fraction . ( Did That Help ? )

fraction divide e.g. 7/20 is 7 divide by 20 equals 0.35.
in decimals you times it by 100
e.g. 0.35 x 100 equals 35%

and if your trying to find the fraction all yoju do is do the oposite

P E M D A S means what ????

Answers

P- Parenthesis
E- Exponents
M- Multiplication
D- Division
A- Addition
S - Subtraction

P ⇔ Parenthesis
E ⇔ Exponents
M ⇔ Multiplication.
D ⇔ Division.
A ⇔ Addition.
S ⇔ Subtraction.

Can you help! What is 48771273 + 68296638918

Answers

The correct answer is :

68,345,410,191.

48,771,273 + 68,296,638,918 = 68,345,410,191.

Hope this helps,

Davinia :)

Why didn’t you use a calculator?

The remainder obtained when x^4 + 3x^2 - 2x + 2 is divided by (x + b) is the square of the
remainder obtained when x^2 – 3 is divided by (x + b). Find the values of b.