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Alina [70]
3 years ago
13

Anyone please help Mark 1 as problem one Mark 2 as problem two

Mathematics
1 answer:
Grace [21]3 years ago
6 0
She had spent $78 on books but idk what to do with the book mark cuz it ask for the total # of books not book marks
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20 POINTS.
Mamont248 [21]
The equation for finding the area of one triangle is A=1/2(B)(H) 

because we have two triangles, we do not need to divide the answer by two. 

That being said, 8 times 12 is 96. 

By installing a sprinkler for every 10 sq ft. of land we divide that by 10 and get 9.6

Because the decimal value is above 5, my answer would be that you need 10 sprinklers. 
8 0
3 years ago
Read 2 more answers
126 pieces of white chocolate and 84 pieces of dark chocolate are divided into packs with equal number of pieces of each kind of
tino4ka555 [31]

Answer:

7

Step-by-step explanation:

factors of 126: 1, 126, 2, 63, 3, 42, 6, 21, 7, 18, 9, 14 and 84: 1, 84, 2, 42, 3, 28, 4, 21, 6, 14, or 7, 12

7 0
4 years ago
Ellen bought soccer shorts on sale for $6 off the regular price of $40. what percent did she save?
jeyben [28]

Ellen bought soccer shorts on sale for $6 off the regular price of $40. What Percent did she save?

The answer is 15%

7 0
4 years ago
What's the kinetic energy of an object that has a mass of 12 kilograms and moves with a velocity of 10 m/s?
storchak [24]

Answer:

Step-by-step explanation:

Assuming it has no spin

KE = ½mv²

KE = ½(12)10²

KE = 600 J

7 0
3 years ago
The sum of three numbers is 13. The sum of twice the first number, 5 times the second number, and 6 times the third number is 67
Jet001 [13]

Answer: 2,3,8

Step-by-step explanation:

if,

x+y+z=13

2x+5y+6z=67

5x-y=7

Solve [x+y+z=13 2x+5y+6z=67] to find: -3x+z=2 and keep

|

x+y+z=13

5x-y=7

6x+z=20 and -3x+z=2

z=8

x=2

y=3

3 0
2 years ago
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