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Leto [7]
3 years ago
9

3 1/2 as a improper fraction and7 and 4/5 as an improper fraction

Mathematics
2 answers:
masha68 [24]3 years ago
7 0

Answer:

3 1/2 = 7/2      7 4/5 = 39/5

Step-by-step explanation:

3 1/2, take the whole number and multiply by the denominator; 3 * 2 = 6, and then add 1. 6 + 1 = 7. 7/2

7 4/5, take the whole number and multiply by the denominator; 7 * 5 = 35, and add 4. 35 + 4 = 39. 39/5

Leno4ka [110]3 years ago
6 0

Answer:

Step-by-step explanation:

3 1/2 = 7/2 improper fraction

7 4/5 = 39/5  improper fraction

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If 72 is 120% of a number, what is 80%<br> of this number?
cupoosta [38]

Answer:

60

Step-by-step explanation:

As we have all the required values we need, Now we can put them in a simple mathematical formula as below:

STEP 172 = 120% × Y

STEP 272 =  

120

100

× Y

Multiplying both sides by 100 and dividing both sides of the equation by 120 we will arrive at:

STEP 3Y = 72 ×  

100

120

STEP 4Y = 72 × 100 ÷ 120

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Finally, we have found the value of Y which is 60 and that is our answer.

You can easily calculate 72 is 120 percent of what number by using any regular calculator, simply enter 72 × 100 ÷ 120 and you will get your answer which is 60

7 0
3 years ago
5 (x + 2) = 3 (x + 8)
aleksley [76]
So first you distribute the 5 to the x and the +2 and get
5x+10=3(x+8)
 then you distribute the 3 to the other x and the +8 and get
5x+10=3x+24
subtract 3x from both sides
2x+10=24
subtract 10 from both sides and get
2x=14
divide both sides by 2 and get
x=7
8 0
4 years ago
Read 2 more answers
1. Ms. Geyer wants to take personal training classes at a nearby gym but needs to start by selecting a membership plan.
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Find the force it would take to accelerate an 800-kg car at a rate of 5 m/s^2.
Mars2501 [29]
800/5 which is 160!!!!!!!!
5 0
3 years ago
What are the characteristics of the graph of the inequality x ≥ -2? The ray will move to the left. The ray will move to the righ
Alenkasestr [34]

Answer:

Step-by-step explanation:

The inequality x ≥ -2 is graphed on a number line.  -2 is the smallest possible value.  All subsequent values are larger and therefore lie to the right of -2.

Thus, the following are true:

1.  The ray will move to the right (because x begins at -2 and increases, which means moving to the right on the number line).

2.  It will use a closed circle (because x = -2 is part of the solution set).

6 0
3 years ago
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