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Soloha48 [4]
2 years ago
9

The cost of y (in dollors) to spans an evening bowling is proportional to the number of games x that are bowled. It costs $17.50

to bowl 5 games. Write an equation that represents the proportional relationship. And How much dose it cost to play 7 games?
Mathematics
1 answer:
riadik2000 [5.3K]2 years ago
5 0
To be honest I don’t know
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If 3t-7=5t, then 6t =
Natalija [7]
The answer is:  " -21 " .
__________________________________________
We are asked to solve for: "6t" ; which is: "6 * t" .
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Given:  3t − 7 = 5t ;  Solve for "t" ; then solve for "6t" ;

     3t − 7 = 5t ;   Subtract "3t" from each side of the equation;
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    3t − 7 − 3t  =  5t − 3t ;

to get:  -7  = 2t  ;

Divide EACH side of the equation by "2" ; to isolate "t" on one side of the equation; and to solve for "t" ;

-7/2 = 2t / 2 ;

-3.5 = t  ;  ↔  t = - 3.5 ;
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Now, solve for "6t" ;

  6 t = 6*(-3.5) = - 21 .   The answer is:  " -21 " .
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6 0
3 years ago
Please help with these questions!
Colt1911 [192]
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3 years ago
The old time train museum is raising the price of tickets for train rides.Tickets used to cost $4.80 each. The new ticket price
SVETLANKA909090 [29]
Only add $4.80 + $1.25
5 0
3 years ago
Read 2 more answers
FONTS
Wewaii [24]

Answer:

x=5

Step-by-step explanation:

9x^2 - 2x + 25 = 8x^2 + 8x

9x^2-8x^2-2x-8x+25=0

x^2-6x+25=0 factorize

(x-5)(x-5)=0

x-5=0 then x=5

8 0
3 years ago
Suppose 40% of all college students have a computer at home and a sample of 64 is taken. What is the probability that more than
Art [367]

Answer:

0.13093

Step-by-step explanation:

Give. That :

Population mean = 40% = 0.4

Sample size (n) = 64

Probability that more than 30 have computer at home

Mean = np = 64 * 0.4 = 25.6

Standard deviation = sqrt(n*p*(1-p)) = 3.919

P(x > 30)

USing the relation to obtain the standardized score (Z) :

Z = (x - m) / s

Z = (30 - 25.6) / 3.919 = 1.1227353

p(Z < 1.122) = 0.13093 ( Z probability calculator)

6 0
2 years ago
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