The formula for the area of a triangle is 1/2*b*h
The best thing to do is to multiply the answers then half them.
7*12= 84
84/2= 42
Therefore, the area is 42cm2
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The answer is
B. 5 schools
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Answer:
<u>The values for x = 56, for y = 28 and z = 64</u>
Step-by-step explanation:
1. Let's review the information given for answering the question correctly:
∠2y° and ∠56°are alternate interior angles
∠x °and ∠2y° are alternate interior angles
<u>2. . Let's find the values of x, y and z.</u>
2y = 56
<u>y = 28</u>
Therefore,
∠x ° = ∠2y°
∠x ° = ∠56°
<u>x = 56 </u>
Let's recall that all the interior angles of a triangle will always add up to 180°, thus:
∠z° = 180 - 60 - 56
∠z° = 180 - 116
<u>∠z° = 64°</u>
<u>z = 64</u>
Round down to 54.6 because it is 5 or less.
Answer:
100 liters of 10% solution is used and 20 liters of 40% solution is used
Step-by-step explanation:
Let "X" amount of 10% solution is used. Then the amount of 40% solution used is equal to 120-X
Now
10% of X + 40% of (120-X) = 15% of 120
On solving the above equation, we get
liters
Amount of 40% solution used = 120 -X = 120-100 = 20 liters
100 liters of 10% solution is used and 20 liters of 40% solution is used
