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Kaylis [27]
3 years ago
5

NEED HELP ASAP

Mathematics
1 answer:
algol [13]3 years ago
7 0

Answer:

A) car one is linear because it decreases the same amount every year.  

    car two decreases by the same ratio so it's exponential.  

B) for car one y = -6,000x + 38,000 (y is the value after x years, -6,000 is what it changes by every year, and 38,000 is the amount of year 0)

   for car two y = (44,000) (17/20)x-1 (y is the value after x years, 44,000 is the amount on year 0, and 17/20 is the ratio)

C) after 5 years car one will be 8,000

    after 5 years car two will be about 16,860

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Plz ans with steps... Thx!!
Ganezh [65]

Answer:

16

Step-by-step explanation:

Let the 1st part of your answer be x , so the 2nd part will be 40-x . From the given information, we can write the equation: (1/4)x = (3/8) × (40-x) . We can simplify this into (1/4)x = (120-3x)/8 ; 8x = 480-12x ; 8x+12x = 480 ; 20x = 480 ; x = 480/20; x = 24

Therefore, the 1st part = 24

Plug this into your 40-x equation to get: 40 - 24 = 16

3 0
3 years ago
Ella used 37.2 pounds of apples to make applesauce . She used one -tenth as a many pounds of sugar as pounds of apples . How man
sukhopar [10]
You would have to divide 37.2 by 10. The answer would be 3.72.
3 0
3 years ago
1/5 of the beads in a jar are purple. Karen plans to use the purple beads to make 6 necklaces. If she used the same number of pu
ira [324]

Answer:

Im late and I could be wrong but is it 3/100?

Step-by-step explanation:

8 0
3 years ago
One alloy is 2 parts iron to 3 parts silver and another alloy is 7 parts iron to 3 parts silver. How much of each should be comb
Shalnov [3]
Let x be your first alloy
2/5x+7/10(30-x)=1/2(30)
4x+210-7x=150
3x=60
x=20
So, you need 20 lbs of the first alloy, and 10 parts of the second to make 30 lbs of half iron and half silver alloy!
8 0
3 years ago
What is f[g(7)] for the following functions?
Leto [7]

Answer: 239

Step-by-step explanation:

g(7)=2(7)-5=9\\\\f[g(7)]=f(9)=3(9)^2 - 4=239

3 0
2 years ago
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