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3 years ago

5

Rachel saved up art supplies she used 1/3 of her money to buy brushes and used 3/4 of her money to buy paint what fraction of he

r saveings does she have left

1 answer:

Bezzdna [24]3 years ago

7 0

According to my calculations she would actually have a negative balance on her account, so she is in debt

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What is Sn for the arithmetic series in which a1=16 , an=98 and n =13?

N76 [4]

Answer:741

Step-by-step explanation:

Given

First term $a_1=16$

last term $a_n=98$

and no of terms $n=13$

And sum of n terms is given by

$S_n=\frac{n}{2}[a_1+a_n]$

$S_n=\frac{13}{2}[16+98]$

$S_n=\frac{13\times 114}{2}$

$S_n=13\times 57$

$S_n=741$

Sp sum of n terms is 741

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4 years ago

What is the greatest common factor of 62, 19, and 91?

BartSMP [9]

Greatest common factor is 1 :)

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4 years ago

A person whose eye level is 15 feet above the ground is looking at a building. The angle of elevation to the top of the building

uysha [10]

Answer:

61.97 feets

Step-by-step explanation:

Using trigonometry :

Horizontal distance between the person and building,

Let distance = d

Tan 15 = 15 / d

0.2679491 * d = 15

d = 15 / 0.2679491

d = 55.980781

To obtain the height, h :

tan 40 = (h-15)/d

d = 55.98

h-15 = 55.98 (tan 40°)

h - 15 = 55.98 * 0.8390996

h - 15 = 46.972797

h = 46.972797 + 15

h = 61.972797

h = 61.97 feets

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3 years ago

Can someone please help me solve for x? i already have y

Scrat [10]

Step-by-step explanation:

$\frac{3}{9} = \frac{5}{y} = \frac{x}{12} \\ \frac{3}{9} = \frac{5}{y} \\ 3y = 45 \\ y = 15 \\ \\ \frac{3}{9} = \frac{x}{12} \\ 9x = 36 \\ x = 4$

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3 years ago

Hello there are two questions in the link's if both were solved that would be awesome.

Stels [109]

Answer:

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3 years ago