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FromTheMoon [43]
3 years ago
10

7 times as much as the sum of 1/3 and 4/5

Mathematics
1 answer:
LenKa [72]3 years ago
7 0
1.86 is your answer
1/3*4/5=4/15
4/14*7/1=28/15
28/15=1.86
Your answer is 1.86

Hope this helps.
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Number 8 and 9 pls, if u answer u get brainlist rank!
mylen [45]

Answer:

8.

Denote the equation : y = ax + b

Use the first 2 values of x and y in table:

3a + b = 21

5a + b = 35

Subtract the 2 equations:

=> 2a = 14 => a = 7 => b = 21 - 3 x 7 = 0

=> The solution is  y = 7x

9.

Denote the equation : y = ax + b

Use the first 2 values of x and y in table:

5a + b = 17

10a + b = 22

Subtract the 2 equations:

=> 5a = 5 => a = 1 => b = 17 - 5 x 1 = 17 - 5 = 12

=> The solution is  y = x + 12

Hope this helps!

:)

8 0
3 years ago
I already know the answer. Just giving away free points. Free Points!!!!
olga_2 [115]
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5 0
3 years ago
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Simplify 5a+3a ???????
luda_lava [24]

Answer:

8a

Step-by-step explanation:

group all similar terms

3a + 5a = 8a

6 0
3 years ago
1. Find the exact value of cos (π radians). <br> 2. Find the exact value of sin (π radians)
valkas [14]

Answer:

  1. -1
  2. 0

Step-by-step explanation:

1. cos(π) = -1

2. sin(π) = 0

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3 0
3 years ago
Find the radius of a circle in which an inscribed square has a side of 8 inches.
tatiyna

Answer:

r = 4

Step-by-step explanation:

side of square is the same as the diameter of the circle

if diameter is 8 then radius is 4

4 0
3 years ago
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