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3 years ago

Explain how 2 plus 2 Equals 4

2 answers:

5 0

The definition of 2 is 1+1 and the definition of 4 is 1+1+1+1.
Now "+" is transitive such that the addition 1+1+1+1 can be broken down as 1+(1+1+1) or as (1+1)+(1+1) indifferently, which is 2+2 =4<span>
</span>

aivan3 [116]3 years ago

3 0

You have 2+2 in each 2 there are 1's so

2=(1+1) 2=(1+1) =4
4=1+1+1+1
2+2=4
think of 2's as 1's when adding did you know 2x2= 4 as well.

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F(x) = x^2 +3 ; g(x) = x - 7

fiasKO [112]

The answer would be A
$x {}^{2} + 3 + x - 7 \\ \\ x {}^{2} + x - 4$

6 0

3 years ago

I need help with these questions its a bit hard to understand ill mark you the brainiest whos ever answer is in full sentence an

Monica [59]

Answer:

Step-by-step explanation:

1. 520/13=40

140/7=20

40*20=80

2. 300*150=45000

45000*6=270000

3. 230-70*2=90

90/2=45 (width)

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3 years ago

A culture started with 6,000 bacteria. After 6

aivan3 [116]

Answer:

9,400 bacteria at Hour 17.

Step-by-step explanation:

If at

Hour 0, it was at 6,000 bacteria then at

Hour 6, it would be at 7,200 bacteria

That means in 6 hours, the bacteria has grown by 1,200

Let's use a ratio:

hours : bacteria

6 : 1,200

1 : 200

17 : 3,400

Now after 17 hours, 3,400 new bacteria has joined our group of 6,000

6000+3400=9400

9,400 bacteria should be present at Hour 17

7 0

3 years ago

Sara has $1.30 less than double what Billy does. Sara has $53.72. How much money does Billy have?

lilavasa [31]

Answer:

Billy has $27.51

Step-by-step explanation:

First let's set up an equation to solve this problem.

Assign a variable to Billy's amount. Let's make it x.

Then we just interpret the problem and solve:

2x - 1.30 = 53.72

+1.30 +1.30

----------------------------

2x = 55.02

(Divide by 2 on both sides)

----------------------------

x = $27.51

2x = Billy's amount doubled

2x - 1.30 = Taking away 1.30 from double Billy's amount

53.72 = Sara's amount

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3 years ago

Eight basketball players are to be selected to play in a special game. The players will be selected from a list of 27 players. I

Softa [21]

3.3 % chance that will randomly pick tallest

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3 years ago