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Anna35 [415]
3 years ago
8

Just number 18 please

Mathematics
1 answer:
nikdorinn [45]3 years ago
5 0

Answer:

Please put the answer horizontal how it is makes my head hurt

Step-by-step explanation:


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What is the solution of the system of equations that contains the equation - 3x - 9y = 18 and the equation of the line shown on
Temka [501]

Answer:

no solution

Step-by-step explanation:

7 0
3 years ago
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20. The total mass of three boxes, A, B, and C, is 1.95 kg. The mass of Box A is 700 g. The mass of Box B is 4 times the mass of
Ksju [112]

Answer:

<h3>Mass of B in Kg = -558.44kg</h3>

Step-by-step explanation:

LET'S DO THIS!

Total mass of A, B and C = 1.95kg

Mass of A = 700 kg

Mass of B = 4x the mass of c (4 x C) which is 4c

Mass of C = ? ( let's call it C )

<h3>Adding all together </h3>

700 + 4c + C = 1.95

<h3>Add like terms</h3>

700 + 5C = 1.95

5C = 1.95 - 700

5C = -698.05

C = -698.05 ÷ 5

<h3>C = -139.61</h3>

<h3>To find B now </h3><h3>Remember they said B is 4 times the mass of C and C = -139.61</h3>

therefore B = 4 × -139.61

<h3>B = -558.44 kg </h3>

<h3>To check if we are correct, we add the masses of A, B and C to see if it equals their total mass which is 1.95kg</h3>

<h3>Using your calculator: </h3>

= 700 + ( -558.44 ) + ( -139.61 )

= 700 - 558.44 -139.61

= 1.95 kg

Which makes us CORRECT ✅.

<h3>Hope this helps.</h3><h3>Good luck ✅.</h3>

5 0
2 years ago
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Plz someone help me with this problem
fiasKO [112]
Not factorable
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6 0
3 years ago
Please help meeeeedeededdesesseeeee
Rudiy27

Answer:

78.5

Step-by-step explanation:

A=πr^2 is the formula. Since you're using pi as 3.14, 3.14 times 5^2 is 78.5 (5^2 is 25 because 5x5=25)

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3 years ago
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Solve the equation. Round the answer to the nearest tenth.
VMariaS [17]
1,04x+3,14=7,98\ \ \  \ \ | subtract\ 3,14\\\\&#10;1,04x=4,84\\\\&#10;x\approx4,7
5 0
3 years ago
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