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Travka [436]
3 years ago
15

Patricia goes to shop at her favourite mall for a day. She spends $103, which is 62.4 percent of the total money that she brough

t with her. How much money did she bring with her to the mall that day?
Mathematics
1 answer:
ASHA 777 [7]3 years ago
8 0

Answer: 210.50$

Step-by-step explanation:

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castel invests $7178 in a savings account with monthly compounding. after 7 years, the balance reaches $12,543.00. What is the i
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4 years ago
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The graph of y=ax^2+bx+c passes through points (0,5), (1,10), and (2,19). Find a+b+c.
nataly862011 [7]

Answer:   a = 2   b = 3   c = 5  

Literally a+ b+c = 10, but I don't think that's what the question means to ask.

the equation is 2x² +3x + 5

Step-by-step explanation:   Substitute the values of the given coordinates into the formula and use algebra (solve a system of equations by substitution and elimination) to get the values  of a,b & c

y=ax²+bx+c    using  (0,5), (1,10), and (2,19)

5=a(0)²+b(0)+c   becomes 5= 0+0 + c .so we find c = 5

10=a(1)²+b(1)+c    becomes 10 = a + b + c

19=a(2)²+b(2)+c .  becomes 19 = 4a + 2b + c

Substitute the 5 for c.  Then rewrite

10 = a + b + 5      becomes     5 = a+ b     to eliminate b multiply this be (-2)

(-2)( 5 = a+ b) .to get -10 = -2a - 2b  

19 = 4a + 2b + 5  becomes   14 = 4a + 2b  

_______________  Add these two

14 = 4a + 2b

<u>-10 = -2a - 2b</u><u> </u>    this will eliminate the "b" term

4 = 2a       divide both sides by 2   so you have   a = 2  

substitute in 10=a(1)²+b(1)+5 to find b

10=2(1)²+b(1)+5 .becomes  5 = 2 + b   Subtract 2 from both sides

b = 3

So now you have all three values:  

a = 2  b= 3  c = 5  

I am attaching the graph. I hope this deserves Brainiest.

Best wishes in your studies!

4 0
3 years ago
Which percentage is greater??<br><br> 57.68 <br> or<br> 57.8%
alexandr1967 [171]
57.8% is greater than 57.68%
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3 years ago
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The price of 2 dozen cobs of corn (which is 24 cobs) is $7.20. Joanna want to buy just 3 cobs of corn. How much will she pay? in
dlinn [17]

Answer:

 

Step-by-step explanation:

5 0
2 years ago
PLEASE HELP!!!
Ksju [112]
ANSWER

a = 1,2,3,6

EXPLANATION

The given equation is

ax = 6

Divide both sides by a

\Rightarrow \: \frac{ax}{a} = \frac{6}{a}

Cancel out common factors on the left hand side,

\Rightarrow \: x = \frac{6}{a}

For this solution to be a whole number, thena should be a factor of
6.

The reason is that, factors of 6 will divide exactly in to 6 without a remainder, making the answer a whole number.

The whole numbers that are factors of 6 are,

1,2,3 \: and \: 6

Note that, the set of whole numbers are,

{0,1,2,3,4,...}
3 0
3 years ago
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