Answer:
36 hotdogs
Step-by-step explanation: Let x= number of hot dogs sold to break even
Equation: 57+0.50x=12+1.75x
subtract 12 from both sides: 45+0.50x=1.75x
subtract 0.50x from both sides: 45=1.25x
Divide both sides by 1.25: x=36
9467280 are the amount of minutes in 18 years.
Answer:
True, the scores are not valid.
Step-by-step explanation:
The test supposed to be measuring intelligence. We can assume that the intelligence of most people relatively stable (will not change too much over a short amount of time), and can expect it should go upward with brain growth and education. But the test seems to give a huge decrease from the first and second results. Then the third result is a huge increase that even higher than the first test.
We don't know the true value of the subject, but seeing the huge gap for every repetition we can tell that the test result lacks precision.
Answer:
A...similar triangles
Step-by-step explanation:
option b... the two triangles are not congruent
option c... the area of ∆AED= 3, ∆ACB= 12.. half of 12 is 6.. wrong
option d. perimeter of ∆AED= 8.60, area of ∆ACB = 12... one fouth of 12 =3. wrong.
option A.. similar triangles have the same shape but they necessarily don't need to have the same size. ... correct! both triangles are right angled triangles.
note.. perimeter is summation of all sides..
solving unknown side use Pythagoras formulae
hyp= √ height (sq) + base (sq)
area of ∆ = 1/2 * base * height...
The correct answer is is D) If the group sells 15 prints they will loose $85.
To figure out which statement is true, we have to evaluate the function ,
for all the values given in options (A)-(D). A negative output represents a loss and a positive output will represent a profit.
In A so . In this case we gather that if they sell 12 prints, they will make a loss of $136. This tells us that option A is wrong.
In B, so . In this case we gather that if they sell 28 prints, they make a profit of $136. This tells us that option B is wrong.
In C, so . In this case we gather that if they sell 35 prints, they make a profit of $225. This tells us that option C is wrong.
Lastly, so . In this case we gather that if they sell 28 prints, they make a loss of 85 dollars. From this we gather that D is the correct option.