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wariber [46]
2 years ago
7

BRAINLIESTTTTTTTTTTTTT!

Mathematics
1 answer:
astraxan [27]2 years ago
5 0
Ok for question in the picture : the y axis is measured in gallons not hours. So niether one of the choices with 10 and 50 in them are correct. The gallons go up from 10-50gallons during the time interval 4<x<7 hours. So, the first answer choice is correct.

1. for this one I would just plug in the point (7,-2) to each answer choice because they all have a slope of -3.
y+2 = -3(x-7)
-2+2= -3(7)+21
0=0
after plugging them in I got the third answer choice is correct.

Any questions?
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Elena receives ​$131 per year in simple interest from three investments totaling ​$3000. Part is invested at​ 3%, part at​ 4% an
ioda

Answer:

Elena invested $ 1,700 at 5%, $ 700 at 4%, and $ 600 at 3%.

Step-by-step explanation:

Given that Elena receives $ 131 per year in simple interest from three investments totaling $ 3000, and part is invested at 3%, part at 4% and part at 5%, and there is $ 1000 more invested at 5% than at 4%, to find the amount invested at each rate, the following calculations must be performed:

1500 x 0.05 + 500 x 0.04 + 1000 x 0.03 = 75 + 20 + 30 = 125

1600 x 0.05 + 600 x 0.04 + 800 x 0.03 = 80 + 24 + 24 = 128

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Therefore, Elena invested $ 1,700 at 5%, $ 700 at 4%, and $ 600 at 3%

7 0
3 years ago
Find the value of 2 in the following equation: 8z=64
mariarad [96]
Altho' 2 is a factor of both 8 and 64, we cannot "find the value of 2" because that's already given.

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Write An expression of the fourth degree with a leading coefficient of 5, a quadratic term with a coefficient of 3, a linear ter
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Answer:

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Step-by-step explanation:

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2 years ago
Give the answer of in the lowest terms 26/25 •15/28•8/39
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Divide top and bottom by 3 :

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Divide top and bottom by 4 :

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= 52 / 455 = 0.11429... (rounded)
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3 years ago
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