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GalinKa [24]
3 years ago
13

Marcus currently has $42 and plans to save an additional $5 each week to buy a pair of shoes. He made a table showing the total

amount of money he will have saved for different weeks. Number of weeks 0 2 5 8 Total amount of money ($) 42 52 67 82 Write an equation in standard form that represents the relationship between the number of weeks and the total amount of money Marcus will have saved. A. −x+5y=42 B. x+5y=42 C. −5x+y=42 D. 5x+y=42
Mathematics
2 answers:
Nesterboy [21]3 years ago
5 0
Y=5x+42
subtract 5x from both sides
-5x+y=42
multiply by -1
5x-y=-42
In standard form, Ax+By=C, the variable A cannot be a negative. However, this is not an option so go with c.
Reika [66]3 years ago
3 0

Answer:

The answer is:5x-y=-42

I "just" got done with my test :)



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Its 1+20x because you would subtract 2-1-=1 and 35x-15x=20x im sorry this is the real correct answer


4 0
3 years ago
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An object is launched from a launching pad 208 ft. above the ground at a velocity of 192ft/sec. what is the maximum height reach
Alexeev081 [22]

Answer:

h(x) = -16x² + 192x + 208

784ft

6 sec

13 sec

Step-by-step explanation:

a)

h(x) = -16x² +vx + h_{o}

here v represent velocity

         h_{o} represent initial height of launch

       

h(x) = -16x² + 192x + 208

b)

h(x) = -16x² + 192x + 208

here a = -16

        b = 192

        c = 208

x = -b/2a

  = -192/2(-16)

  = 6

plug this value in the equation

h(x) = -16(6)² + 192(6) + 208

      = 784ft

e)

Plug h(x)=0 in the equation

0 = -16x² + 192x + 208

divide equation by -16

x² - 12x - 13 = 0

Factors

1x * -13x = -13

1x - 13x = -12

Factorised form

x² - 12x - 13 = 0

x² + x - 13x - 13 = 0

x(x+1) -13(x+1) = 0

(x+1)(x-13) = 0

x = -1

x = 13

Since time can not be negative so we will reject x = -1  

3 0
4 years ago
Pliz answer this question
irina1246 [14]
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which can be reduced to 3/500
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In 2015 the population of 895 quail increases at an annual rate of 3.5%. In writing an
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Answer:

y=895•1.07^x Y is the population of quails and X is the amount of years that have passed.

Step-by-step explanation:

hope this helps

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Plz help i got to go in 10 min
AlexFokin [52]
I think it’s 390. I hope I’m not too late :V
4 0
4 years ago
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