3 years ago

Let the cost of a pen be dollars. Write an expression for the total cost of four pens and seven mechanical pencils in terms of .

Mathematics

1 answer:

lions [1.4K]3 years ago

7 0

Answer:

4x +7 = ?

Step-by-step explanation:

It was easy except you need more info to solve the equation

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Raj weighs a book and rounds the weights to the nearest tenth. Does this weight round to 1.5 pounds?

mel-nik [20]

Step 1: Locate and underline the tenth place (4) and look to the right (8)

1.48

Step 2: In this case, the digit to the right 8 is 5 or above. So, we add 1 to the tenth place 4. The digit at the right 8 becomes 0, thus we get 1.5 as the answer.

In short: 1.48 rounded to the nearest tenth is 1.5.

Hope that helped

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2 years ago

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Afina-wow [57]

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3 years ago

Which choice is equivalent to the expression below? square root of negative 20

morpeh [17]

Answer:

Step-by-step explanation:

The expression can be written as

$\sqrt{-20}$

The - can be taken out from under the radicand and a 2 can be factored out of the expression to leave you with the expression

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3 years ago

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Yuki888 [10]

Answer:

6p + 4

Step-by-step explanation:

7p - 1 - p + 5

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