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finlep [7]
4 years ago
11

Someone help pleaseeee

Mathematics
1 answer:
qaws [65]4 years ago
7 0

Answer:

Part A = D

Part B = 5 and 50

Step-by-step explanation:

Part A:

area = 5*4x = 20x

so, 100 \leq 20x \leq  1000

Part B:

to leave it only by x, you divide both sides by 20

100/20 = 5, 1000/20 = 50

which 5\leq x\leq 50

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Ryan bought a new computer for $2,100. The value of the computer decreases by 50% each year. When will the
noname [10]

Answer:

After 2.80 years the price drops to 300 $

Step-by-step explanation:

Ryan bought a new computer for $2,100.

Price of computer = 2100 $

The value of the computer decreases by 50% each year.

Let p(n) be the price of computer after n years.

\texttt{Price of computer after 1 year =}2100-\frac{50}{100}\times 2100=0.50^1\times 2100\$\\\\\texttt{Price of computer after 2 years =}0.50^2\times 2100\$\\\\\texttt{Price of computer after 3 years =}0.50^3\times 2100\$\\\\\texttt{Price of computer after n years =}0.50^n\times 2100\$

Now we need to find n when price is 300 $.

              0.50ⁿ x 2100 = 300

                 0.50ⁿ = 0.143

                 n log (0.5) = log 0.143

                  n x -0.301 = -0.845

                  n = 2.80

After 2.80 years the price drops to 300 $

8 0
3 years ago
Which square number is closest to 1000?
bezimeni [28]
Thirty-one<span> is the closest square to 1000</span>
8 0
3 years ago
A house is worth $156,000
kherson [118]

Answer:

$18,000

Step-by-step explanation:

Difference in the years is 192000-156000= 36000

To find rate of change, divide the difference by amount of years in difference.

36000/2017-2015

36000/2

Hence, $18000 per year

Hope it helps!

4 0
3 years ago
Ellie is making a batch of pancakes
lys-0071 [83]

Answer:

Ellie needs 1.2 or 1 1/5 cups of flour (as 2/10 simplifies to 1/5).

Please mark me brainliest if this helped!

7 0
3 years ago
Read 2 more answers
PLEASE HELPPPPPPPPPPP
damaskus [11]

Answer:

A.   x < -4  or  x >= 3

Step-by-step explanation:

A solid dot at 3, and shading to the right, means all numbers greater than or equal to 3.

An open dot at -4 and shading to the left means all numbers less than -4.

A number cannot be both 3 or greater AND less than 4, so you must use the word "or" between the the two parts of the answer.

Answer: A.   x < -4  or  x >= 3

3 0
3 years ago
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