3 years ago

Find the value of x so that the function has the given value. r(x)=−45x+7; r(x)=−5

Mathematics

1 answer:

Mama L [17]3 years ago

6 0

Answer:

x = 3

Step-by-step explanation:

j(x) = 4/5(-5) + 7

= -4 + 7

= 3

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A bag contains 4 tan socks and 7 grey socks. emily reaches into the bag and randomly selects two socks without replacement. what

Y_Kistochka [10]

Tan socks = 4
Grey socks = 7
Total number of socks = 4+7 = 11 socks
Probability of picking a tan sock then grey sock:
P(T)*P(G) = (4/11)*(7/10) = 14/54

Probability of picking a Grey sock then Tan sock
P(G)*P(T) = (7/11)*(4/10) = 14/55

Probability of two different colored socks
P(T&G)+P(G&T) = (14/55)+(14/55) = 28/55

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3 years ago

Tank A is filling up with water at a rate of 5/8 gallon per 1/2 minute. Tank B is filling with water at a rate of 3/5 gallon per

Fofino [41]

Compute the unit rates.

Tank A:

(5/8 gal) / (1/2 min) = 10/8 gal/min = 5/4 gal/min = 1.25 gal/min

Tank B:

(3/5 gal) / (1/4 min) = 12/5 gal/min = 2.2 gal/min

So tank B is filling faster.

6 0

4 years ago