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siniylev [52]
3 years ago
7

The combined age of three relatives is 120 years. James is three times the age of Dan, and Paul is two time the sum of the ages

of James and Dan. How old is each person
Mathematics
1 answer:
BaLLatris [955]3 years ago
8 0

Answer:

Step-by-step explanation:

Let x represent Dan's age

3x be James'age

Paul 2(3x+x)=6x+2x

Suming all ages

x+3x+6x+2x=120

Solving for x

12x=120

x=10 (Dan's age)

3×=30 (James'age)

6×+2×=80(Paul's age)

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PLEASE HELP AS SOON AS POSSIBLE THANK YOU!!
nataly862011 [7]

Answer:

We know that when x= -10, y= -17.

So, if we put those into direct variation "y=kx", we get

-17= k(-10)

k   = -17 / -10

Now we put the value of "k" into the formula and we get A (y= 17/10x )

7 0
3 years ago
3) If you can buy one package of shallots for<br> $4, then how many can you buy with $12?
Olin [163]

Answer:

3.

Step-by-step explanation:

4$ = 1 pack

(think: what times 4 is 12? 3! so we need to muliply both sides of the equal sign by 3, so we can turn the 4 into a 12. Remember, what you do to on side, you must do to the other. )

4$ = 1 pack

*3  *3

12$ = 3 packs

so your answer is 3.

5 0
3 years ago
Read 2 more answers
Ky buys three tshirts originally priced at 49.96the stores discount applys 7.1 tax
Olin [163]

Answer:

42

Step-by-step explanation:

49-7=42

7 0
3 years ago
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Elenna [48]

Answer:

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Step-by-step explanation:

7 0
2 years ago
Someone help please!!!!
LUCKY_DIMON [66]

Answer:

x = -2

TU = 4

UB = 2

Step-by-step explanation:

you can add x^2 with 4x+10 and equate it to 6:

x^2 + 4x + 10 = 6

x^2 + 4x + 4

then u can use the roots formula : x = (-b ± √ (b2 - 4ac) )/2a

so it'll be   x = {-4±[√16 - 4(4)]}/2

x= -2

then u can substitute it and find TU and UB

TU= (-2)^2 = 4

UB= 4(-2)+10 = 2

5 0
2 years ago
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