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andrezito [222]
3 years ago
6

Sofia is helping set up for a wedding. There are 80 chairs that need to be arranged in a room, and 60% of those chairs are still

stacked in the corner.
How many chairs are stacked?
Mathematics
1 answer:
Genrish500 [490]3 years ago
6 0

Answer:

48

Step-by-step explanation:

10% of 80 is 8 and 20% is 16 so lets do 40% which is 32 60%  32+16=48  8x10=80

You might be interested in
the arithmetic sequence ai is defined by the formula: a1 = -53 ai = ai-1 + 6 find the sum of the first 880 terms in the sequence
maxonik [38]

Answer:

The sum of the first 880 terms in the sequence is 2,273,920.

Step-by-step explanation:

Arithmetic sequence:

The difference between consecutive terms is always the same, called common difference, and the nth term is given by:

a_{n} = a_0 + (n-1)d

In which d is the common difference.

Sum of the first n terms:

The sum of the first n terms of an arithmetic sequence is given by:

S_{n} = \frac{n(a_1+a_n)}{2}

ai = ai-1 + 6

This means that d = 6

In this question:

Sum of the first 800 terms, so n = 800

First term is -53, so a_1 = -53

The 880th term is:

a_{880} = -53 + (880-1)*6 = 5221

Sum

S_{n} = \frac{880(-53+5221)}{2} = 440(-53+5221) = 2273920

The sum of the first 880 terms in the sequence is 2,273,920.

4 0
3 years ago
Which formula could be used to find the volume of a cube with side length equal to s?
aliina [53]

Answer:

s cubed

Step-by-step explanation:

bc volume is length times width times height so it would be s times s times s which is s cubed

6 0
3 years ago
If 60% of a number is 90, what is 4/5 of the <br>number?​
sukhopar [10]

Answer:

120

Step-by-step explanation:

Let the required number be x

So,

60% of x = 90

0.6x = 90

x = 90/0.6

x = 900/6

x = 150

\frac{4}{5} x =  \frac{4}{5}  \times 150 = 4 \times 30 = 120 \\

7 0
3 years ago
Question 7 of 10
kolezko [41]

The number π produces a rational number (117/35) when added to 1/5

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

A rational number is a number that is expressed as the ratio of two integers, where the denominator should not be equal to zero

π = 22/7, hence:

π + 1/5 = 22/7 + 1/5 = 117/35

The number π produces a rational number (117/35) when added to 1/5

Find out more on equation at: brainly.com/question/2972832

#SPJ1

5 0
2 years ago
I need help on 6 please
IrinaK [193]
The answer is 71.89
7 0
3 years ago
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