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12345 [234]
3 years ago
14

Evaluate the function: f (x)=4x-1. Find f (5)

Mathematics
2 answers:
ipn [44]3 years ago
6 0

Answer: ig its 21

Step-by-step explanation:

gogolik [260]3 years ago
3 0

Answer:

f(5)= 4(5)-1

=20-1

=21

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David wants to my have a board for $398.50. He has saved $350 so far. Stores offering a discount for 15% for the month of Januar
bija089 [108]

Answer:

Yes, he will

Step-by-step explanation:

398.50 x .15 = 59.775

398.50-59.775=338.725

350>338.725

5 0
3 years ago
A teacher is choosing 4 students from a class of 30 to represent the class at a science fair. In how many ways can the teacher c
marin [14]
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4 0
3 years ago
Solve the inequality for x+9<10
Strike441 [17]

Answer:

x < 1

Step-by-step explanation:

x+9<10

Subtract 9 from each side

x+9-9<10-9

x < 1

7 0
3 years ago
How many pounds of Brazilian coffee costing $ 6 per pound must be mixed with 27 lbs of Columbian coffee costing $ 4 per pound to
grigory [225]

Answer:

11 2/3 pounds.

Step-by-step explanation:

Let x pounds be the amount in pounds of Brazilian coffee.

x + 27  is the amount of coffee in lbs after the mixing.

So ,working in  values of dollars, we have:

6x + 4*27 = 4.5(x + 27)

6x + 104 = 4.5x + 121.5

1.5x = 121.5 - 104 = 17.5

x = 17.5/1.5 = 11 2/3 pounds answer

8 0
3 years ago
What are the answers to these questions?
Vladimir79 [104]
12 ) 18
13) 54
14) 28/54 (8weeks x 7 days) = 1/2
       18/24 = 3/4
 therefore rates not equal
15) 0 and 0 ;1 and 4; 2 and 8;3 and 12
7 0
3 years ago
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