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Igoryamba
3 years ago
15

3x+4x+5=19 what is the solution for x

Mathematics
1 answer:
Yuliya22 [10]3 years ago
3 0
X=2 because I think you multiply 3 by 2 because x is beside 3 and 4 by 2 because x is beside 4
So your left with 6 and 8
So...
You do 6 + 8 + 5 =19

Sorry if this is wrong :(
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You have just bought 4 bottles of water containing 750 ml each. How many litres of water do you have in total?
gulaghasi [49]
You have 187.5 because you divide 750 by 4



8 0
3 years ago
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I am a three-digit number. My second digit is 4 times bigger than the third digit. My first digit is 3 less than my second digit
labwork [276]

Answer:

285

Step-by-step explanation:

use algebra

third is x

second is 4x

first is 4x-3

x+4x+4x-3

9x-3 = x+x+1+x+2

9x-3=3x+3

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3 0
3 years ago
The height h, in feet of a model rocket t seconds after launch is given
Illusion [34]

Answer:

h_max = 324.09 ft

Step-by-step explanation:

The correct equation is;

h = 245t - 16t²

We are told that as the rocket descends, it deploys

a recovery parachute when it reaches 325 feet above the ground.

Thus;

245t - 16t² = 325

Thus;

16t² - 245t + 325 = 0

Using quadratic formula, we have the roots as;

t = 1.47s or 13.85s

We will pick the higher value.

Thus;

Maximum height will occur at t = 13.85 s

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7 0
3 years ago
STANDARD DEVIATION
givi [52]

Answer:

0.1527

Step-by-step explanation:

Standard Deviation = √p × q/n

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Bachmann: 37%

n = 100

Standard Deviation = √0.63 × 0.37/100

= √(0.02331)

= 0.1526761278

≈ 0.1527

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3 years ago
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stealth61 [152]

Answer:

Step-by-step explanation: y=1.5(3)-2

y=2.5

7 0
3 years ago
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