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Anarel [89]
3 years ago
15

Find f(4) if f(x) = 3x + 1

Mathematics
1 answer:
Alenkasestr [34]3 years ago
4 0

Answer:f(4)=−3x−1 f ( 4 ) = - 3 x - 1.

Step-by-step explanation:ff(4)=−3x−1 f ( 4 ) = - 3 x - 1.

f(4)=−3x−1 f ( 4 ) = - 3 x - 1. Replace the variable x x with 4 4 in the expression. f(4)=−3⋅4−1 f ( 4 ) = - 3 ⋅ 4 - 1. Simplify the result.

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Which equation can be used to find the answer? Sharifa spends $51 on the first day of her vacation. This leaves her with $127 to
Dima020 [189]
<span>The answer to this problem is B. t – 51 = 127 t = 178 $178.</span>
6 0
3 years ago
Solve for a. Show your work (ALL steps must be shown): -2(a-3)=12
irga5000 [103]

Answer

a= -6

Step-by-step explanation:

-2(a-3)=12

1.) -2(a)= -2a

2) -2(-3)= 6

3)  -2a+6=12

          -6    -6

4) -2a/-2 = 12/-2

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I have an hour left to finish this exam plz help me qwq"
sergejj [24]

Answer:

B. 10    E. 20   C. 60

Step-by-step explanation:

s = 2f

t = 2(f + s)

(15 + 15 + 30 + f + s + t)/6 = 25       This equation and the equations above show how the variables relate to each other

f = 10               The first number is 10

s = 2(10)=20   The second number is 20

t = 2(10 + 20) = 60   The third number is 60

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6 0
3 years ago
When Mya looked out at the store's parking lot, she noticed that for every 4 cars, there were 6 trucks. If there's a total of 22
olasank [31]

Answer:

<h2>88 cars</h2><h2>132 trucks</h2>

Step-by-step explanation:

This is a ratio problem, the ratio of  cars to trucks

for every 4 cars, there are 6 trucks

represented as a ratio we have 4:6

1. how many of them are cars

applying the part to whole strategy we have

4+6 = 10

let cars be x

\frac{4}{10}= \frac{x}{220}  \\\\x= \frac{220*4}{10} \\\\x= 880/10\\\\x= 88 cars

2.  how many of them are trucks?

let trucks be y

\frac{6}{10}= \frac{y}{220}  \\\\x= \frac{220*6}{10} \\\\y= 1320/10 \\\\y= 132 trucks

3 0
4 years ago
If contact lenses cost 80$ how much will they cost if they are with 10% off?
nevsk [136]

10% of 80 = 8

80 - 8 = 72

if they are 10% off, the contact lenses will cost $72

6 0
3 years ago
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