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Minchanka [31]
4 years ago
9

Bryant just drank a cup of coffee to help him stay awake. The coffee had 52 milligrams of caffeine in it. If his body processes

20% of the caffeine every hour, how much will be left in 9 hours?
Mathematics
1 answer:
kkurt [141]4 years ago
4 0
Let c be caffeine, h be hours, mg milligrams:

c= 52 mg
1h =.2 (52)= 10.4

x/9h=10.4/1h

x= 93.6 mg

93.6- 52= 41.6 mg of caffeine will be left behind.











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Xelga [282]
See attached picture for solutions:

3 0
3 years ago
Read 2 more answers
I need help on this algebra question
BartSMP [9]
4 gallons milk(m) , 6 bottles water(b), 7 bags chips(c)

4m + 6b + 7c = 27.45
b = 2c
m = b + 1.8....m = 2c + 1.8

4(2c + 1.8) + 6(2c) + 7c = 27.45
8c + 7.2 + 12c + 7c = 27.45
27c + 7.2 = 27.45
27c = 27.45 - 7.2
27c = 20.25
c = 20.25/27
c = 0.75 <== bag of chips

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6 0
3 years ago
A poster is 15 inches wide by 24 inches tall. A smaller version of the same poster is created using a scale factor of 2/3. What
Tamiku [17]

The area of the small poster is 160 inches square

<h3>How to determine the area</h3>

From the information given, we have the poster to take the form of a rectangle

The formula for area of a rectangle is;

Area = length × width

For the smaller poster created using a scale of factor 2/3

Length = 2/ 3 × 24

Length = 16 inches

Width = 2/ 3 × 15

Width = 10 inches

Substitute into the formula

Area = 16 × 10

Area = 160 inches square

Thus, the area of the small poster is 160 inches square

Learn more about area here:

brainly.com/question/14137384

#SPJ1

3 0
1 year ago
Change 6 17/100 to a %.
oksian1 [2.3K]

Step-by-step explanation:

6 17/100=(6×100+17)/100=617/100×100%=617%i think

3 0
3 years ago
PLEASE HELP 25 PTS AND BRAINLIEST!!!
masya89 [10]

A. X=16

Work

2x+3x-6=10+4x

5x-6=10+4x

5x-4x=10+6

----------------

B. 18+5x

Work

17+5x-23+4x6

Multiply the Numbers

17+5x-23+24

Calculate

-------------

C. 2(7x-1)

Work

7x+5x+8+2x-10

Collect the like terms

Calculate

14x-2

Factor the expression


Hope this Helps

✔Dante✔

3 0
4 years ago
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