1 inch is about 2.54 centimeters.
So 5 inches is 12.7 centimeters. To find the answer you have to multiply 12.7×5=12.7
Answer:
C
Step-by-step explanation:
run
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rise
20/4=5
9514 1404 393
Answer:
$2.50
Step-by-step explanation:
The question asks for the total cost of a notebook and pen together. We don't need to find their individual costs in order to answer the question.
Sometimes we get bored solving systems of equations in the usual ways. For this question, let's try this.
The first equation has one more notebook than pens. The second equation has 4 more notebooks than pens. If we subtract 4 times the first equation from the second, we should have equal numbers of notebooks and pens.
(8n +4p) -4(3n +2p) = (16.00) -4(6.50)
-4n -4p = -10.00 . . . . . . . . . . . simplify
n + p = -10.00/-4 = 2.50 . . . . divide by the coefficient of (n+p)
The total cost for one notebook and one pen is $2.50.
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<em>Additional comment</em>
The first equation has 1 more notebook than 2 (n+p) combinations, telling us that a notebook costs $6.50 -2(2.50) = $1.50. Then the pen is $2.50 -1.50 = $1.00.
One could solve for the costs of a notebook (n) and a pen (p) individually, then add them together to answer the question. We judge that to be more work.
180/20=9
3.98(9)=35.82
Round 35.82 by the ones place= $36
FINAL ANSWER:$36
Answer:
B. 9 feet
Step-by-step explanation:
Using the Pythagorean theorem, the height from the ground to the window (12 ft) is one leg of the right triangle and the length of the ladder while propped against the house (15 ft) is the hypotenuse. Therefore, we need to find the other leg of the right triangle represented by how far the base of the ladder is placed from the base of the house:
a² + b² = c²
12² + b² = 15²
144 + b² = 225
b² = 225 – 144
b² = 81
b = √81 = 9
Therefore, the answer is (B) 9 feet.