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Sati [7]
3 years ago
13

Mrs. Dawson is really good at using coupons to save money. Yesterday, she bought $0.82

Mathematics
2 answers:
Iteru [2.4K]3 years ago
6 0

Answer:

she saved 12 cents with the coupon 82-60=12

Step-by-step explanation:

WINSTONCH [101]3 years ago
5 0
Mrs. Dawson saved 12 cents
82 - 60 = 12
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A shoemaker makes 15,200$ and 912$ in commission (included in 15,200). What is the percent he made in commission to he whole amo
kodGreya [7K]

The total amount of money he only made is calculated by the formula:

amount made = 15,200 – 912

amount made = 14,288

 

Therefore the percentage commission was:

% commission = 912 / 14,288 * 100%

<span>% commission = 6.38 %</span>

6 0
3 years ago
Missy bought 3 umbrellas and 5 hats 27.00. Each umbrella coats the same amount. Each has costs the same amount. The price of a h
slava [35]
$4.00 is my answer.

3x + 5(3) = 27
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3 years ago
Solve 5 ÷ 2 5/7<br><br>10 5/7 <br><br>13 1/2 <br><br>1 8/9<br><br>1 16/19<br><br>​
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3 years ago
Question 2b only! Evaluate using the definition of the definite integral(that means using the limit of a Riemann sum
lara [203]

Answer:

Hello,

Step-by-step explanation:

We divide the interval [a b] in n equal parts.

\Delta x=\dfrac{b-a}{n} \\\\x_i=a+\Delta x *i \ for\ i=1\ to\ n\\\\y_i=x_i^2=(a+\Delta x *i)^2=a^2+(\Delta x *i)^2+2*a*\Delta x *i\\\\\\Area\ of\ i^{th} \ rectangle=R(x_i)=\Delta x * y_i\\

\displaystyle \sum_{i=1}^{n} R(x_i)=\dfrac{b-a}{n}*\sum_{i=1}^{n}\  (a^2 +(\dfrac{b-a}{n})^2*i^2+2*a*\dfrac{b-a}{n}*i)\\

=(b-a)^2*a^2+(\dfrac{b-a}{n})^3*\dfrac{n(n+1)(2n+1)}{6} +2*a*(\dfrac{b-a}{n})^2*\dfrac{n (n+1)} {2} \\\\\displaystyle \int\limits^a_b {x^2} \, dx = \lim_{n \to \infty} \sum_{i=1}^{n} R(x_i)\\\\=(b-a)*a^2+\dfrac{(b-a)^3 }{3} +a(b-a)^2\\\\=a^2b-a^3+\dfrac{1}{3} (b^3-3ab^2+3a^2b-a^3)+a^3+ab^2-2a^2b\\\\=\dfrac{b^3}{3}-ab^2+ab^2+a^2b+a^2b-2a^2b-\dfrac{a^3}{3}  \\\\\\\boxed{\int\limits^a_b {x^2} \, dx =\dfrac{b^3}{3} -\dfrac{a^3}{3}}\\

4 0
2 years ago
Help me again please.
PtichkaEL [24]

Answer:

m=\frac{8}{5}

Step-by-step explanation:

7 0
3 years ago
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