Whats the percent increase form $15 to $27

Answers

Answer 1

Answer: It is 80% becuase you take the percent of markup. This is done by subtracting the final price and the original taking the differnce over the oroginal 15 then do x over 100 due to wanting a percent then just cross multiply and divide then you get 80%!!

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A homeowner leans a ladder against his house so that the top of the ladder makes a 31 degree angle with the house. What angle does the bottom of the ladder make with the ground? help! asap

Answers

If you put an imaginary line from the base of the ladder to the wall it would from a right angled triangle. The internal angles of a triangle all add up to 180degrees. With a right angled triangle, we know for sure one angle is going to be 90 degrees. One angle as you said is 31 degrees so you just add 31 and 90 which is equal to 121 then subtract it by that. SO:
180-(31+90)
180-121=59 degrees
or even easier
90-31= 59

Show work to find the solution for the system:
x = 2y
3x - 6y = 10

Answers

Answer: No solutions

========================================

Work Shown:

3x-6y = 10

3(2y)-6y = 10 ... plug in x = 2y

6y-6y = 10

0 = 10

We get a false statement at the end.

This means the system is inconsistent with no solutions.

Graphing each equation produces two parallel lines that never intersect.

There is no solution to this problem. When you substitute 2y in for x in the equation 3x-6y=10, you will get 3(2y)-6y=10. When you multiply 3(2y), you get 6y. 6y-6y equals 0. 0 cannot equal 10.

If 2/3 = x/12, what is the value of x? A)4. B)8. C)18. D)24.

Answers

B because of what is shown above.

Can you explain how to use the combine place values strategy to find 223-119

Answers

223
- 1 1 9
---------- so combine just means you going to take two numbers to subtract. So since 3 is small then 9 your going to use combine which is taking 19 from 23 so count back 20 21 22 23 so you counted back 4 spaces so you put 4 under the 9 you had no tens so you put a zero under the1 the now you just subtract2-1=1 so your answer is 109 that is called combine place value

223
-119
---------
104

What is 0.6144 devide 1.6 worked out

Answers

0.6144 divided by 1.6 is 0.384

identify the solution set of the given inequality using the given replacement set x<-5;(-9,-6.5,-5.2,-5,0,4.2)

Answers

$x < -5\to x\in\{-9;-6.5;-5.2\}$

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