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taurus [48]
2 years ago
15

28 is what percent of 64?

Mathematics
2 answers:
bezimeni [28]2 years ago
8 0

Solution:

<u>Note that:</u>

  • 64 × x/100 = 28

<u>Simplifying the LHS:</u>

  • 64 × x/100 = 28
  • => 64x/100 = 28

<u>Using cross multiplication:</u>

  • 64x/100 = 28
  • => 64x = 2800

<u>Divide 64 both sides.</u>

  • => x = 2800/64 = 43.75%

28 is 43.75% of 64

andriy [413]2 years ago
7 0
28 is 43.75% of 64
you can calculate this by making a fraction of 28/64 and timing this by 100!
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1 year ago
Find the angle between the given vectors to the nearest tenth of a degree. u = , v = (2 points)
Liono4ka [1.6K]

Answer:

<h2>3.6°</h2>

Step-by-step explanation:

The question is incomplete. Here is the complete question.

Find the angle between the given vectors to the nearest tenth of a degree.

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we will be using the formula below to calculate the angle between the two vectors;

u*v = |u||v| cos \theta

\theta is the angle between the two vectors.

u = 8i + 7j and v = 9i+7j

u*v = (8i + 7j )*(9i + 7j )

u*v = 8(9) + 7(7)

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|u| = √8²+7²

|u| = √64+49

|u| = √113

|v| = √9²+7²

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Substituting the values into the formula;

121= √113*√130 cos θ

cos θ = 121/121.20

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θ = 3.6° (to nearest tenth)

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5 0
3 years ago
Plz explain how u do this
kirill [66]
I can't read it, it's too blurry! :( Sorry. Type what is says, If you want me to help! Sorry again.
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3 years ago
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