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Tamiku [17]
2 years ago
6

A = 65 – 100n Find a 39

Mathematics
1 answer:
grin007 [14]2 years ago
8 0
I’m pretty sure a = -35
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If DC=6x and DA=4x+18, find the value of x then, find AD
shepuryov [24]

The value of x is 9 and AD is 54.

<u>Step-by-step explanation:</u>

From figure, if DC = AD, we can solve for value 'x'

                                    DC = AD

Given:

DC = 6 x

DA = 4 x + 18

Equating the values of both, we get

                  6 x = 4 x + 18

                  6 x - 4 x = 18

                  2 x  = 18

                  x = 9

So, the value of x is 9. By using this value of x, find AD

                      AD = 4 (9) + 18

                      AD  = 36 + 18

                      AD = 54

7 0
3 years ago
Find the slope for the equation: -3x+y=8
Musya8 [376]

Answer:

-3

Step-by-step explanation:

mx+y=b

m=slope

4 0
3 years ago
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If x + 14 =1 then x = ?
Amanda [17]

Answer:

X would be equal to -13

Step-by-step explanation:

if you subtract 14 from both sides, you are left with x on one side and -13 on the other

5 0
3 years ago
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Mandy knows that a 5 meter long bar has a mass 40 kg. She wants to figure out the the mass (w) of a 3 meter long bar.
Tems11 [23]

Answer:

24 kg

Step-by-step explanation:

divide 40kg with 5 meters = 8 kg per meter

so, 8 x 3 = 24 kg

hope this helps!

vote brainliest if it is!! :))

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3 years ago
19. 15 kilometers is _______.
dimulka [17.4K]

15 kilometres = 15,000 metres (C)

1 km = 1,000 m

15 km = 15 × 1,000 = 15,000 m

4 0
2 years ago
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