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I am Lyosha [343]
3 years ago
5

The temperature dropped 75 degrees to 50 degrees. what was the percent decreased in temperature

Mathematics
1 answer:
oksian1 [2.3K]3 years ago
5 0
Easy. The temp dropped 25 degrees.
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For all real numbers  x  and  y, if  x # y = x(x-y), then x # (x # y) =
kati45 [8]
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x^2-x^3+x^2y=8\\\\x^2(1-x+y)=8\\\\x^2(1-x+y)=2^2\cdot4\iff x^2=2^2\ and\ 1-x+y=4\\\\x=2\ and\ y=4-1+x\\\\x=2\ and\ y=3+2\\\\x=2\ and\ y=5
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The cost of 1 m ribbon is ₹ 75. Find the cost of 7/5 metres of ribbon​
Margaret [11]

Given that

The cost of 1 m ribbon = Rs.75

The cost of 7/5 m ribbon

→ (7/5)×75

→ (7×75)/5

→7×15

→₹ 105

The cost of 7/5 m ribbon is ₹105.

8 0
2 years ago
Find the unit rate.<br> 180 miles in 3 hours<br> The unit rate is<br> miles per hour.<br> Pls hurry
Natali [406]

Answer:

60 miles per hour

Step-by-step explanation:

Consider the structure of the wording: "miles per hour"

The word "per" means for each. There is you clue.

Each is, one of and one of is unit measurement

So the controlling element in this question is that you need to convert the 3 hours into 1 hour.

Using ratio properties

180

3

=

x

miles

1

hour

We need to 'force' the left hand side into the same form as the right. That is: we need to convert the denominator into 1 and see what happens to the numerator.

⇒

180

÷

3

3

÷

3

=

x

1

⇒

60

1

=

x

1

So the unit rate of speed is  

60

miles  

per

−−−  

hour

4 0
2 years ago
Someone explain how this is answer C? Big points!
Snowcat [4.5K]

Answer:

C. x = 15 * sin 18°

Step-by-step explanation:

sin A = Opposite / Hypotenuse

sin 18° = x / 15

x = 15 * sin 18°

4 0
3 years ago
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