You have two coins that add up to 30 cents, and one of them is not a quarter. Which two coins are they

Mathematics

1 answer:

ruslelena [56]3 years ago

8 0

Answer:

Quarter and a Nickel

Step-by-step explanation:

Sepecifically said ONE of them is not a quarter.

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Find the sum of 5x+y and (2xy + xy).

svetlana [45]

Answer:

6x^2y+2xy^2

Step-by-step explanation:

5x^2y + (2xy^2 + x^2y).

Combine like terms

6x^2y+2xy^2

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Liliana use for dark power crystals to raise 14 zombie soldiers she wants to know how many zombie soldiers Z she can race with 1

laiz [17]

Answer:

140 zombies

Step-by-step explanation:

Since this is a proportions problem and we are given three values and a variable we must solve for which is the number of zombie soldiers she can raise (z) with 10 dark power crystals. Therefore, we can use the rule of three to solve for this, in which we multiply the diagonal values and divide by the last remaining value in order to solve for the variable like so...

1 crystal <===> 14 zombies

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3 years ago

1)which of the following expressions is written in scientific notation?

lesantik [10]

Answer:

1) The correct answer is option D.

2)The correct answer is option A.

3)The correct answer is option A.

4)The correct answer is option B.

Step-by-step explanation:

1) Scientific notation is defined mathematical representation used to to represent the a decimal number which present between 1 to 10 multiplied by 10 raised to power equal ti some integer. For example:

$0.00051 =5.1\times 10^{-4}$