Ask question

Ask question

All categories

3 years ago

8

Given f(x) = 2x + 5, find x when f(x) = 45

2 answers:

lozanna [386]3 years ago

7 0

Step-by-step explanation:

f(x) = 2x + 5 = 45

2x + 5 = 45

2x = 45 - 5

2x = 40

x = 20

mars1129 [50]3 years ago

7 0

Answer:

f(x) = 2x + 5 = 45

2x + 5 = 45

5-25=2x

40=2x

x = 20

You might be interested in

David wants to buy a 6-foot long sandwich for a birthday party. If the sandwich costs $72.00, what is the cost per foot?

MariettaO [177]

Answer:

$12 per foot

Step-by-step explanation:

$72.00 divided by 6 is $12

3 0

3 years ago

Read 2 more answers

Nat spent $28 on 8 DVDs. At this rate, how much would 5 DVDs cost? What is the unit rate?

mezya [45]

5 DVDs would cost 7.50 and the unit rate is 3.50

7 0

2 years ago

Read 2 more answers

kirill [66]

Answer: I think b=5

Step-by-step explanation:

3 0

2 years ago

The daily high temperatures in a vacation resort city are approximately Normal, with a mean temperature of 75

Nat2105 [25]

O 12.10% right answer

5 0

3 years ago

Some of the dimensions of a square pyramid are shown in the diagram. The height of the pyramid is 7.5 meters. square pyramid Wha

Naddika [18.5K]

Answer:

i think the answer is 2.5 but im not 100% sure if it is.

Step-by-step explanation:

50/50 chance.

5 0

2 years ago