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3 years ago

8x - 3(2x - 4) = 3(x-6)

Mathematics

1 answer:

solong [7]3 years ago

5 0

Answer:

X=30

Step-by-step explanation:

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Suppose that a person's peak blood alcohol level is 0.07 (grams per 100 mL) and that this level decreases by 40% each hour.

Natalija [7]

Answer:

Step-by-step explanation:

Considering a person peak blood is 0.07

It decrease by 4% every hour

a) Using exponential function

$f(x) = Ca^x$

where,

a = 1 + r

r = -0.40%

Here,

C = 0.07,

a = 1 - 0.04 = 0.06

$f(x)=0.07(0.6)^x$

<h3>Therefore, hourly decay factor is 0.6</h3>

Here the hourly decay factor is 0.6

$B(x)=ca^x\\\\0.07(0.6)^x$

c) Evaluate

$B(2)=0.07\times (0.6)^2\\\\0.07(0.36)\\\\= 0.0252g$

0.0252g or 100mL

<h3>Thus, after 2 hours the blood is 0.0252g or 100mL</h3>

3 0

2 years ago

Read 2 more answers

Which of the following units would be most appropriate to measure the height of a 20-story building?

Over [174]

Answer: it is miles bc centimeters and meters are too small

8 0

2 years ago

The equation of ellipse M is

ivolga24 [154]

The answer is c ellipse m is taller than ellipse n

3 0

3 years ago

The school production of Our Town' was a big success. For opening night. 434 tickets were sold. Students paid $4.00 each, while

Alex73 [517]

Answer:

286 students attended

148 non students attended

Step-by-step explanation:

Given

$Tickets = 434$

$Students = \$4.00$

$Non-Students = \$6.00$

$Total = \$2032.00$

Solving (a): Number of students

Represent students with S and non students with N

So:

$S + N = 434$ --- (1)

$4S + 6N = 2032$ --- (2)

Make N the subject of formula in (1)

$N = 434 - S$

Substitute 434 - S for N in (2)

$4S +6(434 - S) = 2032$

Open Bracket

$4S + 2604 - 6S = 2032$

Collect Like Terms

$4S - 6S = 2032 - 2604$

$-2S = -572$

Divide through by -2

$S = 286$

<em>Hence; 286 students attended</em>

Solving (b):

Recall that

$N = 434 - S$

$N = 434 - 286$

$N = 148$

<em>148 non students attended</em>

4 0

3 years ago

The area of a right triangle is 16 square

statuscvo [17]

Answer:

Well if it volume it would be 16 × 2 which is 32 then that would 32 × 16=512

but you wrote area so it would be 16

6 0

3 years ago