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Oliga [24]
1 year ago
10

Jessica painted 3/4 of a room in 3/5 of an hour. How long will it take Jessica to paint the entire room?​

Mathematics
1 answer:
Snezhnost [94]1 year ago
6 0

Answer:

<u>8/10 hours or 48 minutes.</u>

Step-by-step explanation:

State the problem as a rule of 3:

3/4 room --------- 3/5 hours

1 room ------------ x

x=\frac{(1room*\frac{3}{5} hours)}{\frac{3}{4}room}

x= 0.8 hours.

• How much is 0.8 hours in minutes?

0.8 * 60 = 48 minutes.

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Is the sum of two integers always greater than the difference between them? Why or why not? Give examples to support your answer
crimeas [40]
Let x and y be the two integers. 

The sum of the integers is x+y while the difference is x-y assuming x is larger than y. 

If x+y > x-y, then 

x+y > x-y
x+y-x > x-y-x
y > -y
y+y > -y+y
2y > 0
2y/2 > 0/2
y > 0

So as long as y is positive, this makes the sum greater than the difference
For example, if x = 10 and y = 2, then
x+y = 10+2 = 12
x-y = 10-2 = 8
clearly 12 > 8 is true

If y is some negative number (say y = -4), then
x+y = 10+(-4) = 10-4 = 6
x-y = 10-(-4) = 10+4 = 16
and things flip around

Saying a blanket statement "the sum of two integers is always greater than their difference" is false overall. If you require y to be positive, then it works but as that last example shows, it doesn't always work. 

So to summarize things up, I'd say the answer is "no, the statement isn't true overall"
3 0
3 years ago
The table shows a pattern of exponents.<br> What is the pattern as the exponents decrease?
goldfiish [28.3K]

Answer:

where is the table

Step-by-step explanation:

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Solve the equation 9 equals negative d + 17
crimeas [40]

Answer:

Step-by-step explanation:

9=-d+17

(add d to both sides because it is the opposite of subtracting)

9+d=17

(subtract 9 from both sides because it is the opposite of adding)

d=17-9=8

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Help me please i will give appreciate it
OLga [1]
I believe the answer is a sorry if i am incorrect
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Step-by-step explanation:

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