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2 years ago

What is the soulution of the equation 3(2x+5)=3x+4

Mathematics

2 answers:

lakkis [162]2 years ago

8 0

x=- $\frac{11}{3}$

x=-3.666666666666666666666666666666666666666666666

mel-nik [20]2 years ago

8 0

Answer:

x=-11/3

Step-by-step explanation:

Given equation is 3(2x+5)=3x+4

Multiplying 3 into the equation we get

6x+15=3x+4

Adding (-3x) and (-15) to both sides of equation

6x+15+(-3x)+(-4)=3x+4+(-3x)+(-15)

Simplifying

6x+15-3x-15=3x+4-3x-15

6x-3x+15-15=3x-3x+4-15

we know that +15-15=0 and 3x-3x=0

3x+0=0-11

3x=-11

dividing by 3 to both sides of equation we get

3x/3=-11/3

x=-11/3 which is the answer.

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Write each decimal as a fraction in lowest terms 0.255

Vesnalui [34]

Answer:

51/200

Step-by-step explanation:

To write a decimal as a fraction, you have to make the decimal the numerator, and put a multiple of ten with that number of zeroes in the denominator:

0.255 = 255/1000

Then we simplify

51/200

6 0

1 year ago

HELP ME PLZ!!!! if the answer is right ill mark you brainliest

STALIN [3.7K]

Answer:

9.6558916e+17

Scientific Notation: 3.45 x 10^5

E Notation: 3.45e5

= 9.26 × 1010

(scientific notation)

= 9.26e10

(scientific e notation)

= 92.6 × 109

(engineering notation)

(billion; prefix giga- (G))

its probably: 9.26 × 1010 as the question asks for scientific notation

Step-by-step explanation:

somewhere between those lines, good luck!

5 0

2 years ago

Manuel has $600 in a savings account at the beginning of the summer. He wants to have at least $300 in the account at the end of

stiks02 [169]

The answer to this question is 600-28w > 300. This inequality can be described as $600 (money in the savings account) subtracted by $28w (withdrawal of $28 a week for food) should be greater than $300. It proves that the money will not drop below $300.

6 0

3 years ago

Read 2 more answers

The bakers at Healthy Bakery can make 230 bagels in 10 hours. How many bagels can they bake in 23 hours?

BartSMP [9]

Step-by-step explanation:

To find how many they can make in one hour simply divide both the amount of bagels they made by ten.

230 bagels = 10 hours

23 bagels = 1 hour.

Multiply this by twenty three

529 bagels = 23 hours

4 0

2 years ago

Chemistry is an experimental science in which a consistent system of measurements is used. Scientists throughout the world use t

Elena L [17]

Answer:

(a) 142 km trip requires 15.16 Liters of Gasoline

(b) The money spent is 69.34 euros or $87.37.

(d) 4 lb of candy contains 0.559 kg of dietary fat.

Step-by-step explanation:

(a)

Given that;

Mileage = 22 mi/gal

Converting it to km/L

Mileage = (22 mi/gal)(1 gal/3.78 L)(1 km/0.6214 mi)

Mileage = 9.36 km/L

Now, the gasoline required for 142 km trip:

Gasoline Required = (Length of trip)/(Mileage)

Gasoline Required = (142 km)/(9.36 km/L)

Gasoline Required = 15.16 L

(b)

Given that;

Mileage = 30 mi/gal

Converting it to km/L

Mileage = (30 mi/gal)(1 gal/3.78 L)(1 km/0.6214 mi)

Mileage = 12.77 km/L

Now, the gasoline required for 142 km trip:

Gasoline Required = (Length of trip)/(Mileage)

Gasoline Required = (115 km/day)(7 days/week)/(12.77 km/L)

Gasoline Required = 63 L/week

Now, we find the cost:

Weekly Cost = (Gasoline Required)(Unit Cost)

Weekly Cost = (63 L/week)(1.1 euros/L)

Weekly Cost = 69.34 euros/week = $87.37

since, 1 euro = $1.26

(c)

Average Speed = (Distance Travelled)/(Time Taken)

Average Speed = 200 m/20.9 s

Average Speed = (9.57 m/s)(3600 s/1 h)(1 km/ 1000 m)

Average Speed = 34.45 km/h

(d)

22.7 g piece contains = 7 g dietary fat

(22.7 g)(1 lb/453.592 g) piece contains = (7 g)(1 kg/1000 g) dietary fat

0.05 lb piece contains = 0.007 kg dietary fat

1 lb piece contains = (0.007/0.05) kg dietary fat

4 lb piece contains = 4(0.007/0.05) kg dietary fat

4 lb piece contains = 0.559 kg dietary fat

8 0

3 years ago