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Igoryamba
3 years ago
7

Answer ASAP!! Please! Will give brainliest!

Mathematics
1 answer:
ale4655 [162]3 years ago
7 0
This is what you’re looking for !

You might be interested in
Jackie's restaurant bill was $23. 50, and the tax was 8%. Jackie left a 20% tip on the post-tax bill. How much was the tip Jacki
Ksju [112]

well, the subtotal or pre-tax bill is $23.50, now let's add the 8% tax and

\begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{8\% of 23.50}}{\left( \cfrac{8}{100} \right)23.50}\implies 1.88

so the post-tax bill is 23.50 + 1.88 = 25.38, and Jackie's tip is 20% of that

\begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{20\% of 25.38}}{\left( \cfrac{20}{100} \right)25.38}\implies 5.076\qquad \approx 5.08

6 0
2 years ago
In triangle ABC, a = 3, b = 5, and c = 7. Find the approximate value of angle A.
Lady bird [3.3K]

Answer:

21.8° (22° to the nearest degree)

Step-by-step explanation:

Using cosine law:

a² = b² + c² - 2bc(cosA)

3² = 5² + 7² - 2(5)(7)cosA

cosA = 13/14

A = 21.7867893

Approximately angle: 22°

6 0
3 years ago
If y varies directly as x and inversely as z,what is the correct equation describing the relationship between x,y,and z?​
vovangra [49]
<h2>VARIATION</h2>

\rm\large{Hi!!}

<h3>QUESTION:</h3>

  • If y varies directly as x and inversely as z,what is the correct equation describing the relationship between x,y,and z?

<h3>ANSWER:</h3>

The givén problem is an ēxample of <u>Combinēd </u><u>Variation</u>. So the córrect equation for this problem is this:

  • y =  \frac{kx}{z}

ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ

Hi, Im Daubechies, a Filipina user ≧▽≦

7 0
3 years ago
What is the explicit formula for this sequence? -5,-3,-1,1,3
Y_Kistochka [10]

Answer:

b

Step-by-step explanation:

100%

5 0
3 years ago
2/5 times 15/17 times 3/4 =
Dahasolnce [82]
2/5*15/17*3/4
= 2*15*3/5*17*4
= 2*15*3/340
= 90/340
=90/34
 hope this helps hope I'm right :)

4 0
3 years ago
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