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____ [38]
3 years ago
5

The sum of two numbers is 16 , and there difference is 8. determine the numbers by solving the following systems of equations,us

ing x and y to represent the unknown numbers. x+y= 16
x_y=8
Mathematics
2 answers:
Ostrovityanka [42]3 years ago
8 0

Answer:

Step-by-step explanation:

Stells [14]3 years ago
6 0
The answere is 8 because 8x8 = 16      y=x8
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What is 15 scaled up by a factor of 10?
iris [78.8K]
15 scaled up by a factor of 10 or 15 to the power of 10 (15^10) equals 576650390625
Good luck! c:
3 0
3 years ago
Francium has a decay rate of 50% every 22 minutes. How much of an initial amount of 4.8 grams would be left after 88 minutes?
Jlenok [28]

Answer:

0.65g

Step-by-step explanation:

Decay rate = 50%

Decay rate = 0.5

A = Aoe {}^{ - kt}

where Ao = initial amount at start, k = rate of decay or growth, t = time, e = euler's number and A = value at time 't'

Ao = 4.8

t = 88/44 = 4

k = 0.5

substitute these values in the equation

A = 4.8e {}^{ - 0.5 \times 4}

A = 0.6496

A  = 0.65 \: (2dp)

5 0
3 years ago
Bob needs to mix 5 cups of liquid lemonade concentrate with 2.5 cups of water to make lemonade. Bob has 2.5 cups of liquid lemon
Julli [10]

Answer:

3.75 cups

Step-by-step explanation:

Given that :

5 cups of liquid lemonade concentrate is mixed with 2.5 cups of water to make lemonade

5 cups of lemonade = 2.5 cups of water

Ratio :

5 / 2.5

For 2.5 cups of lemonade :

5 / 2.5 = 0.5

Multiply :

5 / 2.5 * 0.5 / 0.5

2.5 / 1.25

Hence, 2.5 cups + 1.25 cups = 3.75 cups of lemonade will be made with 2.5 cups of liquid lemonade concentrate

7 0
3 years ago
Please help..thank you
iVinArrow [24]

Answer:

D

Step-by-step explanation:

To shift down:

F(x)-b

To shift up:

F(x)+b

To shift right:

F(x-b)

To shift left:

F(x+b)

7 0
4 years ago
Read 2 more answers
A contractor currently has 20 construction workers working on a building. When the building is finished, it will have 20 stories
lidiya [134]

Answer:

The number of construction workers is the independent variable.

Step-by-step explanation:

The time it takes to finish the building depends on how many people work on it. So, the time it takes is the dependent variable, which depends on how many people work on it, which is the independent variable.

8 0
3 years ago
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