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ddd [48]
3 years ago
11

Leon has 4 times as much money as Andrew, and Bryanna has $250 more than Leon. If Bryanna has $300, how much does Andrew have? L

et a represent Andrew’s money, and let l represent Leon’s amount.
Mathematics
1 answer:
erik [133]3 years ago
8 0

Answer:

$12.5

Step-by-step explanation:

Bryanna has : $300

Since she has $250 more than Leon.

To get the amount that Leon has, Subtract $250 from $300. $300-$250=$50

So Leon has : $50

Leon has 4 times as much money as Andrew

To get the amount that Andrew has, Divide $50 by 4. $50÷4=$12.5

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Setler [38]
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\dfrac{25+x}{7}=4\\
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8 0
3 years ago
Is the relationship linear, exponential, or neither?
kati45 [8]

Answer:

Neither linear nor exponential

Step-by-step explanation:

To check for a linear relationship.  Find slope.

slope=  (-1  -  (-2)) / ( 5 - 2)  = 1/3

check  other points

slope = (1 - (-1) )/ (8 - 5) =  2/3

check more

slope = (4 - 1) / (11 - 8) = 3/ 3 = 1

Nope.

try assuming an exponential:

y = c * (a^x)

-2 =  c* (a^2);    -2/c = a^2

-1 = c *(a ^5);    -1/c = a^5

1 =  c * (a^8),     1/c = a^8

(-2/c)^4 = a^8 = 1/c

16/(c^4) = 1/c

c^3 = 16,  then    a = root (-2/ cube-root(16) )

The change from negative to postive  would not work  for y = c(a^x)

so...

assume   y =  a^x  + k

-2 = a^2  + k

-1 = a^5  + k

...  I would say neither..

6 0
3 years ago
When a person is breathing normally the amount of air in their lawns varies sinusoidally. When full Karen’s lungs hold 2.8 L of
makkiz [27]

Answer:

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Step-by-step explanation:

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max value of A(t) occur when sin(t) = 1

and min value of A(t) = 0

So b = 0.6

and A(max) = 2.2

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7 0
3 years ago
How do I do this problem?
Vikentia [17]
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8 0
3 years ago
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Andre45 [30]

Answer:

90 students

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Set up a proportion

3/7 = x/210 cross multiply and solve for x

7 0
3 years ago
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