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iris [78.8K]
3 years ago
8

Tissues of living organisms consist primarily of organic compounds; that is, they contain carbon molecules known as proteins, ca

rbohydrates, and fats. A healthy human body is approximately 18% carbon by weight. Determine how many pounds of carbon a body weighing 200 lbs contains. How many kilograms would that be?
Mathematics
1 answer:
Marysya12 [62]3 years ago
4 0
16 kg hope this helps
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Jake earned twice as much as Brendan mowing lawns. If Jake earned $36, how much did Brendan earn?
aniked [119]

Answer:

$18

Step-by-step explanation:

Set up some equations:

J=36

B \times 2=J

Solve for B:

B = J / 2

Substitute 36 for J:

B= 36 / 2 = 18

7 0
3 years ago
If u= and v=<3cos45degree,3sin45degree> find the direction of u+v. Put in degrees and round to the nearest tenth.
bija089 [108]

Answer:

54.0°

Step-by-step explanation:

We have that:

u=<cos 30°, 4sin30°>

This implies that:

u=<½√3, 2>

Also, v=<3cos 45°, 3sin 45°>

v=<3√2/2, 3√2/2>

u+v=<2.99,4.12)

The direction of u+v, is the angle, it makes with the positive x-axis.

This is given by;

\theta =  { \tan}^{ - 1} ( \frac{y}{x} )

\theta =  { \tan}^{ - 1} ( \frac{4.12}{2.99} )

\theta = 54.03

To the nearest tenth, the direction is 54.0°

8 0
2 years ago
A line passes through the points (-8, 1) and (-1, 6). A second line passes through the points (-3,0) and (-8,-5). What is the po
finlep [7]
\begin{gathered} y=mx+b \\ m=\frac{6-1}{-1+8}=\frac{5}{7} \\ 6=\frac{5}{7}(-1)+b \\ 6+\frac{5}{7}=b \\ b=\frac{42+5}{7}=\frac{47}{7} \\ y=\frac{5}{7}x+\frac{47}{7} \end{gathered}

For the second line

\begin{gathered} y=mx+b \\ m=\frac{-5-0}{-8+3}=\frac{-5}{-5}=1 \\ 0=1(-3)+b \\ b=3 \\ y=x+3 \end{gathered}

The intersection will be

\begin{gathered} y=\frac{5}{7}x+\frac{47}{7} \\ x+3=\frac{5}{7}x+\frac{47}{7} \\ x-\frac{5}{7}x=\frac{47}{7}-3 \\ \frac{7x-5x}{7}=\frac{47-21}{7} \\ \frac{2x}{7}=\frac{26}{7} \\ 14x=182 \\ x=\frac{182}{14} \\ x=13 \\  \\ y=13+3=16 \end{gathered}

Therefore, the point of intersection is (13, 16)

6 0
1 year ago
Two northern towns are at record low temperatures. One is at -13 degrees and the
marin [14]

Answer:

9 degrees is the answer you are looking for

Step-by-step explanation:

7 0
2 years ago
25(3+x)+10x5 what is an equivalent expression
gogolik [260]
10x^5+25x+75 that will be your answer

4 0
3 years ago
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