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RideAnS [48]
3 years ago
13

X − 2y = 14 x + 3y = 9 (1, 12) (−1, −12) (12, −1) (12, 1)

Mathematics
1 answer:
pashok25 [27]3 years ago
6 0
(12,1) is not a solution
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What is the slope of the line?<br> A. 1/2<br><br> B. -2<br><br> C. 2<br><br> D. -1/2
In-s [12.5K]

Answer:

b-2 i think. Im pretty sure its right if not sorry


6 0
3 years ago
Read 2 more answers
I had 3 dollars,my mom gave me10 my dad gave me 30 my aunt and uncle gave me 100,i had another 7,how much did i have?
alisha [4.7K]

Answer:

150

Step-by-step explanation:

If you had 3 dollars plus the 10 your mom gave you would have 13. Then, if you dad gave you 30 that would be 43. Plus the 100 your aunt and uncle gave you would be 143. Plus 7 would be your answer of 150

6 0
3 years ago
Four penguins would satisfy a polar bear's appetite for 12 hours. A polar bear has a
julsineya [31]

Answer:

0.04%

Step-by-step explanation:

If there are 1000 penguins per square miles, <em>the total number of penguins in a  10 square miles will be 1000*10 = 10,000 penguins/10square miles</em>

Since a polar bear has a territory of 10 square miles, and<em> can only eat four penguins within the 10square miles;</em>

<em />

Percentage of penguins that the polar bear can eat will be expressed as;

number of penguin eaten per 10square miles/total number of penguin per 10square miles * 100

Percentage of penguins that the polar bear can eat = 4/10,000 * 100%

Percentage of penguins that the polar bear can eat = 4/100%

<em>Hence, the percentage of penguins that the polar bear can eat in the 10 square miles is 0.04%</em>

6 0
3 years ago
Computer towers purchased for $30900 depreciates at a constant rate of 12.6% per year. Write the function that models the value
Paha777 [63]

Answer: the computer towers will be worth $10521 after 8 years

Step-by-step explanation:

We would apply the formula for exponential decay which is expressed as

A = P(1 - r)^t

Where

A represents the value of the computer towers after t years.

t represents the number of years.

P represents the initial value of the computer towers.

r represents rate of decay.

From the information given,

P = $30900

r = 12.6% = 12.6/100 = 0.126

Therefore, the function that models the value of the computer towers after (t)years from now is

A = 30900(1 - 0.126)^t

A = 30900(0.874)^t

Therefore, when t = 8 years, then

A = 30900(0.874)^8

A = $10521

6 0
3 years ago
Need help with this math problem
Dmitrij [34]

Answer:

So the value of u is 24 degree.

Step-by-step explanation:

Given;

Three angle 2u , (u+18) degree and 90 degree in a Triangle.

We know;

Addition of three angle in a triangle is equal 180 degree

2u+u+18+90=180

3u=180-90-18

3u=72

u=\frac{72}{3}

u=24

∴ The value of u is [tex]24[\tex] degree.

3 0
3 years ago
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