2+2 plz help i think it's 22

Mathematics

2 answers:

Kryger [21]3 years ago

6 0

Answer: 4!!!!!!!!!!! Or is it 9?

Step-by-step explanation:

Talja [164]3 years ago

4 0

Answer:

Its 45608563826465

Step-by-step explanation:

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andrey2020 [161]

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If two sides of a parallelogram are represented by the vectors, then the lengths of the diagonals of the parallelogram by the pa

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Answer:

If two sides of a parallelogram are represented by the vectors, then the lengths of the diagonals of the parallelogram by the parallelogram law are |→d1| and |→d2|.

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Two families visited an amusement park. The first family bought 2 hot dogs and 3 bottles of waters, which totaled $18. The secon

Ghella [55]

Answer:

$6.00

Step-by-step explanation:

To solve this problem, we have to construct two separate equations for each family, and then use any of the methods for solving simultaneous equations.

Let's consider h to represent the cost of 1 hot dog, and w to mean the cost of 1 water bottle.

• For the first family:

$2h + 3w = 18$

We can rearrange the equation to make w the subject:

⇒ $3w = 18 - 2h$

⇒ $w = \frac{18 - 2h}{3}$

• For the second family:

$4h + 2w = 28$

Since we have previously obtained an expression for w in terms of h, we can substitute that expression for w in the above equation, and then solve for h:

⇒ $4h + 2(\frac{18 - 2h}{3}) = 28$