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podryga [215]
3 years ago
7

39 seconds to 13 seconds

Mathematics
2 answers:
Fudgin [204]3 years ago
7 0
Can you add a little bit more detail? Am I finding out how much the difference is or something?
erastovalidia [21]3 years ago
4 0
39:13 is the ratio
39:13 simplified is 1:3 or 1/3
Is that what your asking?
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How do you solve 44 ÷ 0.5
jeka57 [31]

Answer:

88

Step-by-step explanation:

44 / 0.5 = 44*2 = 88

5 0
3 years ago
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If m = 5 and n = -2, evaluate 3m - 4n and n2 - m and find the product of the two expressions.
ddd [48]

Hence the correct answer is C) -23

Further explanation:

We have to put the values of m and n into both expression first separately and then multiply the answers.

Given expressions are:

Exp\ 1:3m-4n\\Exp\ 2: n^2-m

The values are:

m=5\\n=-2

Putting the values in expression 1:

3m-4n\\=3(5)-4(-2)\\=15+8\\=23

Putting the values of m and n in second expression

n^2-m\\=(-2)^2-5\\=4-5\\=-1

Multiplying both expressions:

(3m-4n)(n^2-m)=23* (-1)=-23

Hence the correct answer is C) -23

Keywords: Polynomials, Putting values in expressions

Learn more about polynomials at:

  • brainly.com/question/4142886
  • brainly.com/question/4934417

#LearnwithBrainly

8 0
3 years ago
A nursery owner buys 9 panes of glass to fix some damage to her greenhouse. The 9 panes cost
Nadya [2.5K]

Answer: $11.80 for another 4 panes of glass.

Step-by-step explanation: We know that 9 panes of glass cost $26.55, but we should first find how many dollars would it cost per pane of glass, or 1.

So, we can divide 26.55 by 9 to find the price per 1 pan of glass.

26.55/9 = 2.95, or $2.95 per pane of glass.

Now, we want to know how much it will cost for 4 panes of glass. Simply multiply 2.95 by 4.

2.95 x 4 = 11.8, or $11.80 for another 4 panes of glass.

8 0
3 years ago
Read 2 more answers
_____ occurs when the effects of an independent variable and an uncontrolled variable are intertwined, so one cannot determine w
Alexandra [31]

Answer:

"Confounding Variable"

Step-by-step explanation:

According to my research on statistical studies, I can say that based on the information provided within the question the term being defined in the question is called a "Confounding Variable". This is a variable that affects both the dependent variable and independent variable, this then causes a confusion in their relationship.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

5 0
3 years ago
Between which two numbers is -1.5 located on a number line
Jlenok [28]
On a number line of whole integers -1.5 falls between -2 and -1
3 0
3 years ago
Read 2 more answers
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