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PtichkaEL [24]
3 years ago
11

If 52 is 130% of a number, is the number greater then or less the 52? Explain

Mathematics
2 answers:
Varvara68 [4.7K]3 years ago
6 0
The number must be less than 52 as is everything over 101%.

A percentage is just a fraction where the number to the left of the sign, let's say 'x', is placed in the numerator above 100 (example: x/100) = x%. 

52 / 130% = 52 / 1.3 = 40
olga_2 [115]3 years ago
3 0
X= a number

If 52 is 130% of a number, then we multiply the unknown number by 130%.

x * 130%= 52
convert % to decimal (130%÷100)

1.3x= 52
divide both sides by 1.3

x= 40


ANSWER: The unknown number is 40, so it is less than 52. We multiply the unknown number by 130% to equal 52.

Hope this helps! :)
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An economist for a sporting goods company estimates the revenue and cost functions for the production of a new snowboard. These
Vladimir79 [104]

Answer:

Between 1000 and 5000 snowboards will make the function AP(x) >0.

Step-by-step explanation:

Since x can only take possitive values, we have that AP(x) = P(x)/x > 0 if and only if P(x) > 0.

In order to find when P(x) > 0, we find the values from where it is 0 and then we use the Bolzano Theorem.

P(x) = R(x) - C(x) = -x²+10x - (4x+5) = -x²+6x - 5. the roots of P can be found using the quadratic formula:

r_1,r_2 = \frac{-6 ^+_- \sqrt{6^2-4*(-1)*(-5)} }{2*(-1)} = \frac{-6^+_-\sqrt{16}}{-2} = \{1, 5\}

Therefore, P(1) = P(5) = 0. Lets find intermediate values to apply Bolzano Theorem:

  • P(0) = -5 < 0 ( P is negative in (-∞ , 1) )
  • P(2) = -4+6*2-5 = 3 > 0 (P is positive in (1,5) )
  • P(6) = -36+36-5 = -5 < 0 (P is negative in (5, +∞) )

The production levels that make AP(x) >0 are between 1000 and 5000 snowboards (because we take x by thousands)

5 0
3 years ago
1-1/2=2(y=4) please help me
kozerog [31]

Answer:

Y=4

Step-by-step explanation:Solve for yy in (y=4)(y=4).

y=4y=4

2 Substitute y=4y=4 into 1-1/2=2

​2

​

​

No Solution

4 0
3 years ago
Give me an answer only
masha68 [24]

Answer:

Step-by-step explanation:

option 2

5 0
2 years ago
Read 2 more answers
Nessa had $50 n her savings and it increased by 20%. How much money is in her account?
vredina [299]

Answer:

$60

Step-by-step explanation:

If it is increasing annually then next year the savings will be $50+20% of $50

=>$50+$10

=>$60

4 0
3 years ago
Read 2 more answers
Seven tenths of a number plus fourteen is less than forty-nine
zloy xaker [14]
I'm going to assume you need this inequality solved.

First, write it as numbers, not words.

7/10n + 14 < 49

where "n" is the unknown number.

Second, if I were you, I'd change that fraction into a decimal, as it'll make life easier later on.

7/10 = 0.7

Now, solve it like you would any other equation.

0.7n + 14 < 49

0.7n +14 - 14 < 49 - 14

0.7n < 35

0.7n ÷ 0.7 < 35 ÷ 0.7

n < 50

The answer is n < 50


5 0
3 years ago
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