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pantera1 [17]
3 years ago
10

3x + 7x - 8 = -19 , evaluate .

Mathematics
2 answers:
Minchanka [31]3 years ago
8 0

Answer:

Exact Form: X=11/10

Decimal Form: X=1.1

Mixed Number Form: X=-1 1/10

Valentin [98]3 years ago
7 0

Anx

Step-by-step explanation:

x=-1.1

Please mark brainliest

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Simplify algebraically ​
Black_prince [1.1K]

Answer:

600,000,000

Step-by-step explanation:

Simplify the expression.

Scientific Notation:

6 ⋅ 10 ^8

Expanded Form:

600000000

8 0
3 years ago
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Find what y is -5y - 2 > 30.5
Sav [38]
It is 25.5 is the correct answer have a nice day
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CAN SOMEONE PLEASE HELP ME WITH THIS QUESTION? 4x+2=7x-37
grin007 [14]
<h2>Answer:</h2><h2>x = 13</h2><h2 /><h2>Hope this helps!!</h2>

5 0
3 years ago
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There are 165 counters in a bag. Each counter is either black or white.
Nostrana [21]

6:5

  • there are 165 counters in the bag.

let the white counter be x

  • the black counter = 2x

2x + x = 165

  • 3x=165

divide both sides by 3

  • x=55

there are 55 white counters in the bag

165-55=110

OR

2x= 165

divide both sides by 2

x= 110

  • there are 110 black counters in the bag
  • Martine takes 40%of the black counter

40%= 40/100×110

= 44.

  • 44 black counters was taken out of the bag
  • then there would be 66 black counters left I.e(110-44=66)

▪︎ there would be 66 black and 55 white counters in the bag.

  • ratio of black counters to the white counter = 66:55
  • reduced to the lowest term = 6:5 ( 11 divides 66 and 55 Into 6 and 5)

• the answer is 6:5

8 0
3 years ago
A cyclist rode for 3.5 hours and completed a distance of 60.9 miles. If she kept the same average speed for each hour, how far d
WINSTONCH [101]

Answer:

She rode 17.4 miles in 1 hour

Step-by-step explanation:

A cyclist rode for 3.5 hours and completed a distance of 60.9 miles. If she kept the same average speed for each hour, how far did she ride in 1 hour?

Part A Estimate the quotient. Include an equation to show your work. Explain your thinking.?

The quotient is the average speed and this is calculated as:

Speed = Distance(miles)/Time(hours)

Where speed = quotient

Distance = Dividend

Time = Divisor

Speed = 60.9 miles/3.5 hours

= 17.4 miles/hour

Part B Find the exact distance she rode in 1 hour by completing the division. PLEASE HELP!

If :

3.5 hours = 60.9 miles

1 hour = x miles

Cross Multiply =

3.5x = 60.9 miles

x = 60.9/3.5

x = 17.4 miles

Hence, she rode 17.4 miles in 1 hour

6 0
3 years ago
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