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KiRa [710]
2 years ago
12

Calculate 21+22+23+24...+81

Mathematics
1 answer:
Kryger [21]2 years ago
8 0
The answer is 171 your welcome
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An entrepreneur sold a damaged bedspread for $130.50, thereby making a loss of 13% on the cost price. Determine the cost price o
Anit [1.1K]

Answer:

$1003.84615

Step-by-step explanation:

130.5 = x * 0.13

130.5/0.13 = x

x = 1003.84615

4 0
3 years ago
Luis bought stock at $66.80. The next day, the price increased $13.85. This new price changed by −2 3 /4 % the following day. Wh
larisa86 [58]
We know that
1) <span>Luis bought stock at ---------------> $66.80
2) </span><span>The next day, the price increased $13.85--------> $66.80+$13.85=$80.65
3) </span><span>This new price changed by −2 3 /4 % the following day
2 3/4%----> (2*4+3)/4----> 11/4 %----> 2.75%
so
(100%-2.75%)-----> 97.25%
t</span><span>he final stock price is $80.65*0.9725-----> $78.43

the answer is 
</span>$78.43<span>

</span>
6 0
3 years ago
The ratio of boys to girls in a summer camp is 2 to 3. how many boys and girls are there if the camp has 350 students?
borishaifa [10]
2 times 25 equals 50. 3 times 100 is 300. 50+300=350
6 0
2 years ago
Why do you think it's important that we always label our units on word problems
MAXImum [283]
Word problems describe a situation where something mathematical can be found out about a system. Often, it's a real-world measurement (like numbers of apples, ages of people, inches, feet, etc.) and usually have more than one object being discussed. 
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5 0
3 years ago
6 - 3 ²/⁵ =<br> What is 6 - 3 ²/⁵
Leya [2.2K]

~\hspace{7em}\textit{rational exponents} \\\\ a^{\frac{ n}{ m}} \implies \sqrt[ m]{a^ n} ~\hspace{10em} a^{-\frac{ n}{ m}} \implies \cfrac{1}{a^{\frac{ n}{ m}}} \implies \cfrac{1}{\sqrt[ m]{a^ n}} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ 6-3^{\frac{2}{5}}\implies 6-\sqrt[5]{3^2}\implies 6-\sqrt[5]{9}~~\approx ~~4.8

3 0
2 years ago
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