Answer:
1 : 4
Step-by-step explanation:
Remember, your units have to match, so
3 in : 1 ft
doesn't look right, change 1 ft to 12 in.
3 in : 12 in
reduce by 3
1 : 4
Answer:
6 3/4 (six and three fourths)
Step-by-step explanation:
First, we must turn 4 6/7 into an improper fraction, AKA 28/7. Now, you can't subtract 1/4 from 28/7, can you? So what you need to do is find the greatest common factor of 4 and 7. The GCF would be 28 (7 x 4 = 28, 4 x 7 = 28).
Now we know that the GCF is 28, we can turn the numbers into 28/28 and 1/28. But wait! We aren't done yet. Now we have to change the numerators. Since you multiplied the denominator (7) by 4 to get 28, you must now multiply 28 by 4 as well. (If you do something to the bottom, you have to do it to the top!) Because of this, we are now at 196/28.
Next, we must do the numerator of 1/28. Since we multiplied the denominator (4) by 7 to get 28, we must now multiply 1 by 7. This gets you to 7/28.
It's finally time to subtract. 196 - 7 is 184, so we are at 184/28. But hey, that's an improper fraction! You have to simplify. 184 divided by 28 is 6.75. 0.75 is 3/4 when turned into a fraction.
Mash 6 and 3/4 together, and you've got your answer! 6 3/4.
The answer for # 1) B 1/3
is #2 not the same quesztion tho ?
It is a multiplication sign. *
I hope I helped.
The Pythagorean theorem is sometimes known as Pythagoras' theorem. The speed of the faster person is 40 kmph.
<h3>What is Pythagoras' theorem?</h3>
The Pythagorean theorem, sometimes known as Pythagoras' theorem, is a basic relationship between the three sides of a right triangle in Euclidean geometry. The size of the square whose side is the hypotenuse is equal to the sum of the areas of the squares on the other two sides, according to this rule.
Let the speed of one person be represented by x, then the speed of the other person, if the speed of the second person is 75% of the first.
- Speed of first-person = x
- Speed of second-person = 75% of Speed of first-person = 0.75x
Now, the distance covered by two persons in 2 hours is,
- Distance covered by the first-person = x × 2 = 2x
- Distance covered by the second-person = 0.75x × 2 = 1.5x
Since one person runs towards the south and another towards the east. Therefore, will form a 90° angle between their directions.
Now, the distance between the two after two hours is 100 km, therefore, we can write,
(2x)² + (1.5x)² = 100²
4x² + 2.25x² = 10000
6.25x² = 10000
x² = 10000/6.25
x² = 1600
x = √1600
x = 40
Hence, the speed of the faster person is 40 kmph.
Learn more about Pythagoras' Theorem here:
brainly.com/question/14461977
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