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3 years ago

A $65 coat is now on sale for $52. What percent discount is given?

Mathematics

2 answers:

torisob [31]3 years ago

8 0

Answer:

35%, because it is

Step-by-step explanation:

i took the lesson dont listian to that guy

leonid [27]3 years ago

3 0

20%, because if 65 is 100, then 52 is 80% out of 65; so 100 - 80 is 20

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Use Gauss's approach to find the following sums (do not use formulas). 1+3+5+7+...999

muminat

$S=1+3+5+\cdots+995+997+999$
$S=999+997+995+\cdots+5+3+1$
$\implies 2S=(1+999)+(3+997)+(5+995)+\cdots+(995+5)+(997+3)+(999+1)$

$2S=\underbrace{1000+1000+\cdots+1000+1000}_{500\text{ times}}$

(We are adding 500 instances of 1000 because that's how many odd numbers there are between 1 and 1000, inclusive.)

$2S=500\times1000=500000$
$\implies S=250000$

4 0

4 years ago

The prism shown has a volume of 35 cm^3

artcher [175]

Answer:

$Height = 2.5$

Step-by-step explanation:

Given

$Volume = 35$

$Length =7$

$Base=4 cm$

Required

Determine the height

The volume is calculated as:

$Volume = Height * Base\ Area$

Since, it has a triangular cross-section, the expression becomes:

$Volume = Height * \frac{1}{2} * Base * Length$

So, we have:

$35 = Height * \frac{1}{2} * 4 * 7$

$35 = Height * 14$

$Height = 35/14$

$Height = 2.5$

7 0

3 years ago

You’re setting up a zip line in your yard you map out your yard in a coordinate plane and equation of the line representing the

Luda [366]

Answer: Great Question. In order to anwer your question where is the zip line

Step-by-step explanation:

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3 years ago

A car completes a journey at an average speed of 40km/h.At what speed must it travel on the return journey if the average speed

nalin [4]

The distance, s = 40t₁ where t₁ is the time to complete the outward journey.
The same distance = vt₂ where t₂ is the time to complete the return journey at speed v.
For the whole journey, 2s=60(t₁+t₂). Therefore s=30(t₁+t₂)=40t₁=vt₂.
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3 years ago

Which of the following is a polynomial?

Tcecarenko [31]

Answer:

(D.) 3x^2 + 6x

Step-by-step explanation:

the other options aren't complete and some don't even create a parabola.

3 0

3 years ago