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natta225 [31]
3 years ago
5

Adam, Beth, and Carly walked a total of 10 miles collectively. Beth walked twice as far as Adam, and she walked a half a mile fu

rther than Carly. If a = number of miles Adam walks, b = number of miles Beth walks, and c = number of miles Carly walks, which equation is NOT true for this situation?
A) b = 2a
B) b = c + 0.5
C) 3a + c = 10
D) a + 2c = 10.5
Mathematics
2 answers:
bearhunter [10]3 years ago
8 0
D) a+2c=10.5

Since b=c+\frac{1}{2}
a+b+c=10
a+(c+1/2)+c=10
a+2c+1/2=10
a+2c=9.5
Basile [38]3 years ago
8 0

Answer: Option 'D' is not correct.

Step-by-step explanation:

Since we have given that

Total distance walked by Adam , Beth, and Carly = 10 miles

Let number of miles Adam walks be a

Let number of miles Beth walks be b

Let number of miles Carly walks be c

According to question,

<u>Beth walked twice as far as Adam </u>

So, the equation will be

b=2a

Thus, Option 'A' is satisfied.

<u>Now, Beth walked a half a mile further than Carly.</u>

So, the equation will be

b=c+0.5

Thus, Option 'B' is correct.

Now, we substitute the first equation, then we get

a+b+c=10\\a+2a+c=10\\3a+c=10

Thus, Option 'C' is correct.

<u>The only incorrect equation is Option 'D' .</u>


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Answer:

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2 years ago
a father is 24years older than his son. if the son is x years old, how old is the father and if the ratio of their ages is 5:2,
yan [13]

x+25/x=5/2

5x=2(x+24) 5x=2x+48

5x-2x=48

3x=48 3x/3=48/3

the age of son=16

father=24+x 24+16=40

F=40 s=16

40/16=5:2

6 0
3 years ago
A system consisting of one original unit plus a spare can function for a random amount of time X. If the density of Xis given (i
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0.2397

Step-by-step explanation:

Given data:

fX(x) = Cxe^(−x/2) if x >0 0 otherwise, where C > 0 is some constant.

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attached below is a detailed solution

3 0
2 years ago
Functions f(x) and g(x) are shown below:
kondor19780726 [428]
We look for the minimum of each function.
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 We clear the value of x:
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 x = -2
 We substitute the value of x in the equation:
 f (-2) = 3 * (- 2) ^ 2 + 12 * (- 2) + 16
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PLEASE HELPTH ME (MODERATORS STOP I REPEAT STOP REMOVING MY QUESTIONS BRO)
kompoz [17]

Answer:

X=75

Y=110

Step-by-step explanation:

A straight line is 180, so add the equations that make a line and set them equal to 180

x+20+x+10=180

Combine like terms

2x+30=180

Subtract 30 from both sides

2x=150

Divide by 2

X=75

Same for y

y+y-40=180

2y-40=180

Add 40 to both sides

2y=220

Divide by 2

Y=110

5 0
3 years ago
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