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Allisa [31]
3 years ago
9

The temperature dropped from 75 degrees to 50 degrees. What was the percent decrease in the temperature?

Mathematics
2 answers:
Sav [38]3 years ago
8 0
It depends, are you talking about Fahrenheit or Celsius? Fahrenheit is simple, but Celsius is a bit complicated. The drop from 75 to 50 is 25, and 25 is one-third of 75, so that would 33% or 1/3% drop. 
jolli1 [7]3 years ago
4 0
25% is the answer because 25% of fifty is IDK
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If Joey had 5,000,000 dollars and spent 28% of the money, how much will he have left?
Mrac [35]

Answer:

3600000

Step-by-step explanation:

5000000*.28 = 1400000

5000000-1400000 = 3600000

5 0
2 years ago
Silas just bought a used car for $5000. It loses value at a rate of 30% per year. The value of the car in n years is modeled by
Fantom [35]

Answer:

$1200.50

plug 5 for n

5000(.7)^4

5000*.2401

=1200.5

8 0
2 years ago
What is 2/5 times -10
maxonik [38]

Answer:

-4

Step-by-step explanation:

2/5 times -10 = -4

6 0
3 years ago
Read 2 more answers
For online courses, like those in eCore, there is a positive correlation between the amount of time spent in the course and the
Troyanec [42]

Answer:

Regression Line is given by,

y = 22.909 + 0.209 x

The course grade of a student in the course who spent an average of 103 minutes in the course each week is: 22.909 + 0.209 × 103 = 44.436

Step-by-step explanation:

The equation of Regression equation is of the form of:

y = a + bx

where, a is intercept and b is slope

The formula for a and b is given by,

a=\frac{\sum Y \sum X^2-\sum X \sum XY}{n\sum X^2-(\sum X)^2}\\ and, b = \frac{n\sum XY -\sum X \sum Y}{n\sum X^2-(\sum X)^2}

Here, ∑X = 1149.8, ∑Y = 377.2, ∑XY = 93115.95, ∑X² = 320246.72

Thus, a = 22.909

and b = 0.209

Thus, Regression Line is given by,

y = 22.909 + 0.209 x

Thus, The course grade of a student in the course who spent an average of 103 minutes in the course each week is: 22.909 + 0.209 × 103 = 44.436

Now plotting these line:

6 0
2 years ago
PLEASE HELP QUICKLY;; WILL GIVE 40 POINTS!
noname [10]

Since only the first term has ax for coefficients the GCF cant be -3ax^5.

The GCF would be -3a

Factor -3a out of all the terms:

-3a(2x^7)-3a(-4a^5)-3a(a^4)

Now factor -3a out of the equation for the final answer:

-3a(2x^7-4a^5+a^4)

4 0
3 years ago
Read 2 more answers
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