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diamong [38]
2 years ago
8

ANSWER FAST PLZ 25POINTS!!!!!!!!!!!

Mathematics
2 answers:
Gre4nikov [31]2 years ago
5 0

Answer:

Step-by-step explanation:

43.96 in. divided by 3.14 = 14/2 = 7

The radius is 7in

nadezda [96]2 years ago
3 0

Answer:

7 inches, B

Step-by-step explanation:

The circumference of a circle is equal to 2*pi*r, and pi=3.14.

Set 43.96 equal to 2*3.14*r, dividing by 2*3.14, r=7 inches, or B.

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Two certificates of deposit pay interest that differ by 3%. Money invested for one year in the first CD earns $240 interest. The
Soloha48 [4]

a = interest rate of first CD

b = interest rate of second CD

and again, let's say the principal invested in each is $X.

\bf a-b=3\qquad \implies \qquad \boxed{b}=3+a~\hfill \begin{cases} \left( \frac{a}{100} \right)X=240\\\\ \left( \frac{b}{100} \right)X=360 \end{cases} \\\\[-0.35em] ~\dotfill\\\\ \left( \cfrac{a}{100} \right)X=240\implies X=\cfrac{240}{~~\frac{a}{100}~~}\implies X=\cfrac{24000}{a} \\\\\\ \left( \cfrac{b}{100} \right)X=360\implies X=\cfrac{360}{~~\frac{b}{100}~~}\implies X=\cfrac{36000}{b} \\\\[-0.35em] ~\dotfill\\\\

\bf X=X\qquad thus\qquad \implies \cfrac{24000}{a}=\cfrac{36000}{b}\implies \cfrac{24000}{a}=\cfrac{36000}{\boxed{3+a}} \\\\\\ (3+a)24000=36000a\implies \cfrac{3+a}{a}=\cfrac{36000}{24000}\implies \cfrac{3-a}{a}=\cfrac{3}{2} \\\\\\ 6-2a=3a\implies 6=5a\implies \cfrac{6}{5}=a\implies 1\frac{1}{5}=a\implies \blacktriangleright 1.2 = x\blacktriangleleft

\bf \stackrel{\textit{since we know that}}{b=3+a}\implies b=3+\cfrac{6}{5}\implies b=\cfrac{21}{5}\implies b=4\frac{1}{5}\implies \blacktriangleright b=4.2 \blacktriangleleft

3 0
3 years ago
Richard walks every day for exercise at a rate of 1 kilometer every 12 min. At this rate ,how many meters can Richard walk in a
garik1379 [7]
60 minutes in an hour
60÷12=5
1,000 meter in 1 km
5×1=5
5×1000=5000
therefore, 5000 meters
3 0
3 years ago
Read 2 more answers
2) Complete the table.<br>x<br>20<br>200<br>2000<br>15<br>20​
Dimas [21]
I think it’s 25 but I’m not too sure
3 0
2 years ago
PLEASE HELP 20 POINTS AND WILL GIVE BRAINLIEST
topjm [15]

Answer:

25

Step-by-step explanation:

maybe

8 0
2 years ago
What is 34/51 in its simplest form
sveticcg [70]
2/3
divide by 17

34/17 is 2
51/17 is 3
5 0
3 years ago
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