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3 years ago

Please help. This is due soon. Ty

Mathematics

1 answer:

Nataliya [291]3 years ago

5 0

Answer:

3 dollars and 9 cents.

Step-by-step explanation:

From the question given above, the following data were obtained:

Total amount = 20 dollars

Amount for gift A = 9 7/10 dollars

Amount for gift B = 6 2/5 dollars

Amount for gift C =?

The amount of money she has left for gift C can be obtained as follow:

A + B + C = 20

9 7/10 + 6 2/5 + C = 20

Change to improper fraction

97/10 + 32/5 + C = 20

(97 + 64)/10 + C = 20

161/10 + C = 20

Collect like terms

C = 20 – 161/10

C = (200 – 161)/10

C = 39/10

Change to mixed fraction

C = 3 9/10 dollars

C = 3.9

C = 3 dollars and 9 cents

Therefore, Kathy had 3 dollars and 9 cent for gift C

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Let v1=(3,5) and v2=(-4,7) Compute the unit vectors in the direction of |v1| and |v2|?

AleksandrR [38]

By definition, the unit vector of v = (a,b) is
$\hat{v} = \frac{\vec{v}}{|v|}$

Therefore,
The unit vector of v₁ = (3,5) in the direction of |v₁| s
(3,5)/√[3² + 5²]
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The unit vector of v₂ in the direction of |v₂| is
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= (-4,7)/√65

Answer:
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The unit vector of v₂ in the directin of |v₂| is
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6 0

3 years ago

Find an equation of the plane that is parallel to the line of intersection of the planes ( x + 3y + z = 3 ) ( 3x - y - z = 0 ) a

NeTakaya

Answer:

Wow I got the first step

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7 0

3 years ago

Please answer with work explanation (if possible)

andrey2020 [161]

Answer:

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Step-by-step explanation:

So first I multiplied $425.50 by 20%.

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The sale price of Dean's guitar is $357.42.

4 0

3 years ago

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Lunna [17]

Answer:

hello :

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3 0

3 years ago

Please help me out on this please

Alina [70]

Answer:

8/15

please like my answer and brainliest me HSHSSHSHS

7 0

3 years ago

Please help. This is due soon. Ty ￼

Please help. This is due soon. Ty