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3 years ago

When Marla rounded 19.95 to the nearest tenth she found the number change to 20 is this correct. Explain

1 answer:

5 0

Yes, because a number that is 5 or higher, rounds up. so the five would make the 9 round up, which would make the 19 go to a 20

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243.875 round to the nearest hundred

kipiarov [429]

243.88 this is the answer because you are rounding the number in the hundreds collumn

4 0

3 years ago

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How many terms does the polynomial x^2 y^2 have

valina [46]

2 terms! hope this helps :)

3 0

3 years ago

Marci has a total 50 stamps, consisting of 25 cent stamps and halves the number of 15 cent stamps, they will be worth of $16.50.

lukranit [14]

Answer:

Originally there were 30, 25 cents stamps and 20, 15 cent stamps.

Step-by-step explanation:

We are given the following in the question;

Let x be the number of 25 cents stamps and y be the number of 15 cents stamps.

Marci has a total 50 stamps.

Thus, we can write

$x+y=50$

Also,

$x = \dfrac{y}{2}$

Total cost = $16.50

Thus, we can write the equation:

$0.25x + 0.15y = 16.50$

Solving the two equations:

$0.25\dfrac{y}{2} + 0.15y = 16.50\\\\(0.125+0.15)y = 16.50\\y = 60\\x = 30$

Originally,

$x+y = 50\\30 + y = 50\\y = 20$

Thus, originally there were 30, 25 cents stamps and 20, 15 cent stamps.

7 0

3 years ago

Find the value of c that makes the expression a perfect square trinomial. x2 + 9 4 x + c

JulijaS [17]

The value of c is 81/64 for the expression a perfect square trinomial.

<h3>What is an Expression?</h3>

An expression can be defined as a mathematical statement that consists of variables, constants and mathematical operators simultaneously.

It is given that an expression

x² +9/4x +c is a perfect square polynomial

c =?

(a+b)² = a² +2ab+b²

2ab = 9/4

b = 9/8

c = b² = 81/64

Therefore the value of c is 81/64 for the expression a perfect square trinomial.

To know more about Expression

brainly.com/question/14083225

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5 0

2 years ago

Nancy borrows $5000 at a rate of 16% interest per year. What is the amount due at the of 5 hears if the interest is compunded co

Julli [10]

The amount due in 5 years is 11,000

4 0

3 years ago

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