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Sedaia [141]
3 years ago
11

Find difference 7 7/8-3 1/4

Mathematics
1 answer:
umka2103 [35]3 years ago
8 0
So first convert to improper fractions
7 and 7/8=7+7/8=56/8+7/8=63/8

3 and 1/4=3+1/4=12/4+1/4=13/4

so nowe we have
63/8+13/4
convert bottom number to same
which is 8
13/4 times 2/2=26/8
now we have
63/8-26/8=37/8=4 and 5/8
answer is 4 and 5/8
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List the fractions and decimals in order from least to greatest...
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In order to list them from least to greatest is by finding the smallest number first. Negative numbers are always less than positive, so -3/8 and -0.65 have to be ordered first. -3/8 or -0.38 is greater than -0.65, so -0.65 would be first. Then the next negative which is -0.65 comes next. the last two fractions are 2/4 or 1/2 or 0.5 and 5/16 or 0.31. 0.5 is greater than 0.31, so the order is -0.65, -3/8, 5/16, and 2/4. Hope this helps!
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piano lessons cost $30 per lesson. Find ordered pairs that represent the total cost for x number of lessons. Check all that appl
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The cost of each Piano Lesson = $30
If there are x lessons, the total cost of lessons can be expressed as 30x.

Since the number of lessons cannot be negative, the value of x can be 0 or greater than 0, where x=0 shows no lesson.

For 1 lesson, x = 1
So the cost will be = 30(1) = $30
In ordered pair we can write it as (1, 30)

If we consider there is an option to attend half portion of a lecture, then for 1 and half lectures, x = 1.5
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For 3 lesson, x = 3
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In ordered pair we can write this as (3, 90)

So, from the given options, only following 2 ordered pairs satisfy the given conditions:
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X+9=27
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