How to solve 0.5(5-7x)=8-(4x+6)

Answers

Answer 1

Answer: $\frac { 1 }{ 2 } \left( 5-7x \right) =8-\left( 4x+6 \right) \n \n \frac { 1 }{ 2 } \left( 5-7x \right) =8-4x-6$

$\n \n \frac { 1 }{ 2 } \left( 5-7x \right) =2-4x\n \n \frac { 1 }{ 2 } \left( 5-7x \right) =2\left( 1-2x \right) \n \n 2\cdot \frac { 1 }{ 2 } \left( 5-7x \right) =2\cdot 2\left( 1-2x \right)$

$\n \n 5-7x=4\left( 1-2x \right) \n \n 5-7x=4-8x\n \n -7x+8x=4-5\n \n x=-1$

Answer 2

Answer:

Hey! Just answering so the other guy can have brainiest! Hope this helped!

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There are 4 more girls in Mrs. Pitt's class than Mr. Brown's class. Five girls moved from Mrs. Pitt's class to Mr. Brown's class. Now there are twice as many girls in Mr. Brown's class as there are in Mrs. Pitt's. How many girls were in Mr. Brown's class to begin with?

Answers

3 girls were in Mr. Brown class in the beginning

Answer:

There were 7 girls in Mr. Brown's class to begin with.

i really hope this helps/brainliest is always appreciated

What is another name for two halves

Answers

2 fractions, 2 pieces.... I hope this helped!

A whole :) 2 pArts or 2/2

Ricardo and John start swimming from the same location. Ricardo starts 15 seconds before John and swims at a rate of 3 feet per second. John swims at a rate of 4 feet per second in the same direction as Ricardo. which equation could you solve to find how long it would take John to catch up with Ricardo?A. 4t+3=3t
B. 4t+60=3t
C. 3t+3=4t
D. 3t+45=4t

Answers

speed=distance / time; ⇒distance=speed * time
Distance traveled by Ricardo
Distance (Ricardo)= (3 ft / s) * 15s+3 ft/s * time=45 ft+3 ft/s*t=45+3t

Distance traveled by John:
Distance(John)=(4 ft/s) * time=4t

Distance traveled by Ricardo=Distance traveled by John
3t+45=4t

Answer: D. 3t+45=4t

A bag contains 8 blue marbles, 6 green marbles, 12 yellow marbles, and 10 orange marbles. A marble is drawn at random from the bag. What is the probability that the marble drawn will not be blue?

Answers

Using it's concept, it is found that there is a 0.7778 = 77.78% probability that the marble drawn will not be blue.

What is a probability?

A probability is given by the number of desired outcomes divided by the number of total outcomes.

In this questions, there are 8 + 6 + 12 + 10 = 36 marbles, of which 36 - 8 = 28 are not blue, hence the probability is given by:

p = 28/36 = 0.7778 = 77.78%

More can be learned about probabilities at brainly.com/question/14398287

#SPJ1

Answer:

7/9

Step-by-step explanation: I took the test

how do i Subtract and simplify: (11x2 + 7) – (6x2 + 3x – 3)

Answers

You have to remember that:

$(-)*(+)=(-)$

and

$(-)*(-)=(+)$

$(11x^2+7)-(6x^2+3x-3)=11x^2+7-6x^2-3x+3=5x^2-3x+10$

mark wants to paint a mural. He has 1 1/3 gallons of yellow paint, 1 1/4 gallons of green paint, and 7/8 gallon of blue paint. mark plans to use 3/4 of each paint color. how many gallons of paint will he have left after painting the mural

Answers

we have

Yellow paint

$1(1)/(3) =(3*1+1)/3\n \n =(4)/(3) gal$

Find the
amount of yellow paint left after painting the mural

$((4)/(3) -(3)/(4) )=(4*4-3*3)/12\n \n =(7)/(12) gal$

Green paint

$1(1)/(4) =(4*1+1)/4\n \n =(5)/(4) gal$

Find the
amount of green paint left after painting the mural

$((5)/(4) -(3)/(4) )=(5-3)/4\n \n =(2)/(4) gal$

Blue paint

$(7)/(8)gal$

Find the
amount of blue paint left after painting the mural

$((7)/(8) -(3)/(4) )=(7-2*3)/8\n \n =(1)/(8) gal$

Find the
total amount of paint left after painting the mural

$(7)/(12) +(2)/(4) +(1)/(8) =((2*7+6*2+3*1))/(24) \n \n =(29)/(24) gal$

$(29)/(24) =1(5)/(24) gal$

therefore

the answer is

$1(5)/(24) gal$

Mark has: 1 1/3 = 4/3 gallons of Yellow
   1 1/4 = 5/4 gallons of Green
      7/8 gallons of Blue.

Total = (4/3 + 5/4 + 7/8) LCM = 24
      = (32 + 30 + 21)/24 = 83/24 Gallons of Paint in total.

If he used 3/4 of each, he would have (1 - 3/4) = 1/4 of each left.

Therefore gallons left = 1/4 * (83/24) = 83/96 gallons left.
   = 0. 8646 gallons left in total.

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