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Eva8 [605]
3 years ago
7

How can you determine the number of solutions for an equation

Mathematics
1 answer:
ryzh [129]3 years ago
5 0
The way to determine the number of solutions is to complete the problem in multiple different ways.
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Beth left school driving toward the lake one hour before tim. tim drove in the opposite direction going 6 mph slower than beth f
m_a_m_a [10]

Beth's speed was 60 mph.

<h3>What is speed?</h3>
  • The speed (commonly referred to as v) of an object in everyday use and kinematics is the magnitude of the change in its position over time or the magnitude of the change in its position per unit of time; it is thus a scalar quantity.
  • The distance traveled by an object in a time interval is divided by the duration of the interval; the instantaneous speed is the limit of the average speed as the duration of the time interval approaches zero.
  • Velocity is not the same as speed.

To find what was Beth's speed:

Beth's data:

  • time = 2 hrs; rate = r mph; distance = r×t = 2r miles

Tim's data:

  • time = 1 hr; rate = r-6 mph; distance = r-6 miles

Equation:

  • distance + distance = 174 miles

So,

  • 2r + r - 6 = 174
  • 3r - 6 = 174
  • 3r = 180
  • r = 60 mph (Beth's rate)
  • r-6 = 54 mph (Tims's rate)

Therefore, Beth's speed was 60 mph.

Know more about speed here:

brainly.com/question/4931057

#SPJ4

3 0
1 year ago
Please awnser and make sure it’s to
AlekseyPX

Answer:

the third one

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
The price of an item has been reduced by 40%. The original price was $66. Find the price of the item now.
serious [3.7K]

Answer:

$39.60

Step-by-step explanation:

We are finding 66 - 40%

66 less 40% = 60% of 66

60% of 66 is the price of the item now.

Convert 60% to decimal form by dividing by 100.

60%/100 = 0.60

Multiply the decimal form by 66

66 X 0.6 = 39.60

Since we are dealing with money, keep 2 decimal places, even if the last digit is 0.

The price of the item now is $39.60.

7 0
3 years ago
Can you use doubling for 7 times 3
V125BC [204]
What do you mean doubling? You can add 7+7+7 which equals 21. 
4 0
3 years ago
Read 2 more answers
Solve 8 + 5* = 1008.<br> Round to the nearest ten-thousandth.
Hitman42 [59]

Answer:

8.0000

Step-by-step explanation:

4 0
3 years ago
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