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2 years ago

10

Laura just finished a new book about a time-traveling magician. She read the same amount every day and completed the book in jus

t 10 days! The book had 85 pages.How many pages did Laura read each day?

1 answer:

svp [43]2 years ago

5 0

So you have 85 pages and 10 days.
You would do 85/10 to get 8.5 pages each day. Hope that’s right !

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a total of $9500 is invested, part at 10% simple interest and part at 9%. if the total annual return from the two investments is

Nutka1998 [239]

a total of $9500 is invested, part at 10% simple interest and part at 9%

if the total annual return from the two investments is $914.00

Amount invested = 9500

Total amount return means total yield = $914

Let x amount is invested at 10% simple interest

Interest for first part = 10 % times x = 0.10x

Remaining part invested is 9500 -x

Interest for remaining amount = 9% (9500 -x) = 0.09(9500-x)

Total interest yield is 914. Now we frame an equation

0.10x + 0.09(9500-x) = 914

0.10x +855 - 0.09x = 914 (combine like terms)

0.01 x + 855 = 914 (subtract 855)

0.01x = 59 ( divide both sides by 0.01)

So x = 5900

$5900 is invested in 10% simple interest

9500 - 5900 = $3600 is invested in 9% simple interest

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3 years ago

Which polynomial is in standard form?

Tamiku [17]

Answer:

D). $5x^7y^2+7x^6y^5-14x^3y^7+51x^2y^9$

Step-by-step explanation:

For better clarity let us re write the options

A). $2xy^3+3x^3y^4-4x^4y^5+9x^5y^6$

B). $8x^5-5y^4-2xy^5+x^2y$

C). $x^3y^2-3x^2y-9x^4y^3+11x$

D). $5x^7y^2+7x^6y^5-14x^3y^7+51x^2y^9$

To express polynomial with mixed variables in standard form, we begin by the highest coefficient of x to the smallest (we place high precedence on the coefficient x terms)

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3 years ago

2(2 – 2x) = –3x A. –4 B. 4 C. 6 D. 0

zlopas [31]

Answer:

$x = 4$

Step-by-step explanation:

Let's solve:

$2(2−2x)=−3x$

Step 1: Simplify both sides of the equation.

$2(2−2x)=−3x \\ (2)(2)+(2)(−2x)=−3x(Distribute) \\ 4+−4x=−3x \\ −4x+4=−3x$

Step 2: Add 3x to both sides.

$−4x+4+3x=−3x+3x \\ −x+4=0$

Step 3: Subtract 4 from both sides.

$−x+4−4=0−4 \\ −x=−4$

Step 4: Divide both sides by -1.

$\frac{ - x}{ - 1} = \frac{ - 4}{ - 1}$

Therefore, the answer will be x = 4.

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3 years ago

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Answer:

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Step-by-step explanation:

I did it and it was right

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3 years ago

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