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frez [133]
3 years ago
8

Subtract and simplify your answer. 7/18-2/9

Mathematics
2 answers:
s344n2d4d5 [400]3 years ago
4 0

Answer:

1/6.

Step-by-step explanation:

7/18−2/9=?

The fractions have unlike denominators. First, find the Least Common Denominator and rewrite the fractions with the common denominator.

LCD(7/18, 2/9) = 18

Multiply both the numerator and denominator of each fraction by the number that makes its denominator equal the LCD. This is basically multiplying each fraction by 1.

(7/18×11)−(2/9×22)=?

Complete the multiplication and the equation becomes

7/18−4/18=?

The two fractions now have like denominators so you can subtract the numerators.

Then:

7−4/18=3/18

This fraction can be reduced by dividing both the numerator and denominator by the Greatest Common Factor of 3 and 18 using

GCF(3,18) = 3

3÷3/18÷3=1/6

Therefore:

7/18−2/9=1/6

bixtya [17]3 years ago
3 0

Answer:

Step-by-step explanation:

7/18-2/9=7/18-4/18=3/18=1/6

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Zach wants to build a slanted skateboard ramp. He knows he wants the ramp to form a 15 degrees angle with the ground and be 4 fe
Fynjy0 [20]

Answer: The ramp would be 15.5 feet long.

Step-by-step explanation: Please refer to the attached diagram for details.

Angle C shows the angle to be formed by the ramp from the ground, which is 15 degrees. Also, from the ground, it’s going to be four feet tall, which is line AB. The top of the ramp is point A, which makes line AC the entire length of the ramp. Since we have a reference angle (angle C) and two sides, the opposite and the hypotenuse, we shall apply the trigonometric ratio.

SinC = opposite/hypotenuse

Sin 15 = 4/b

By cross multiplication we now have

b = 4/Sin15

b = 4/0.2588

b = 15.4599

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Therefore the length of the ramp would be 15.5 feet

6 0
3 years ago
If Sean drives 35 miles in 5 hours,how many miles does Sean drive in 1 hour?
Zepler [3.9K]

Answer:

7 miles

Step-by-step explanation:

you want to take the total miles and devide it by total time, (35/5) and that would be your answer.

7 0
3 years ago
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Answer:

It will take 20 minutes to pump out 1000 unit milk tank

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8 0
3 years ago
segment MN is shown. Point M is located at (7,6). Point N is located at (7,-4) What is the midpoint segment of MN
Luda [366]

Answer:

The midpoint of MN is <u>(7,1)</u>

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6 0
2 years ago
Please help..........
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