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yan [13]
3 years ago
10

14.914 cm + 243.1 cm + 243.1 cm =269.0186 cm

Mathematics
1 answer:
Alexeev081 [22]3 years ago
3 0

Answer:

False

Step-by-step explanation:

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Can some one help me with this
Studentka2010 [4]
The answer is 2 i hope this helps
7 0
3 years ago
Will give brainliest to first right answer. Before a sale an items price was $28.00 then after being discounted the price was $1
matrenka [14]
The discount was 48%. The original price was $28.00, but the new price was $14.60.
8 0
3 years ago
Read 2 more answers
What is the rate of change of the volume of the cylinder at that instance (in cubic kilometers per second)?
Kay [80]

Answer:

hello your question is incomplete attached below is the complete question

answer : -2400 π

Step-by-step explanation:

dr/dt = -12 km/s

h = 2.5 km

r = 40 km at some instant

hence the rate of change of Volume of cylinder at that instance

= dv / dt = d(\pi r^h ) / dt  

              = \pi h\frac{d(r^2)}{dt}  = -\pi h *2r *dr/dt

hence ; dv / dt = -2400 π

3 0
3 years ago
If you add 21 to my number and then multiply the result by 3, you will get 84 more than two-thirds of my number. Find my number.
Ksivusya [100]

Based on the calculations, the unknown number is equal to \frac{-45}{7}

  • Let the unknown number be x.

<h3>How to find an unknown number:</h3>

Translate the word problem into an algebraic expression, we have;

Adding 21 to the unknown number:

21 +x

Multiplying the result by 3:

3\times (21+x)

84 more than two-thirds of the unknown number:

\frac{2x}{3} +84

Equating the equations, we have:

3\times (21+x) = \frac{2x}{3} +84\\\\43+3x=\frac{2x}{3} +84

Cross-multiplying, we have:

43+3x=\frac{2x}{3} +84\\\\129+9x=2x+84\\\\9x-2x=84-129\\\\7x=-45\\\\x=\frac{-45}{7}

Read more on word problems here: brainly.com/question/13170908

5 0
2 years ago
The cost price of bicycle a is $620. The shopkeeper sells it and makes a profit of
Romashka [77]

Answer:

$341 the selling price

Step-by-step explanation:

Cost $620

$620-45% ($279 profit)

$620-$279=$341 should be the selling price

6 0
2 years ago
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