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gtnhenbr [62]
3 years ago
8

Plz answer the question below

Mathematics
2 answers:
solmaris [256]3 years ago
7 0

X equal to 6 plus 1 by 3 which is 19 by 3 is the answer which is also a improper fraction

guajiro [1.7K]3 years ago
7 0

Answer:

x=19/3

Step-by-step explanation:

x-1/3 =6 /×3

3x - 1 =18

3x=18 +1

3x =19

x=19/3

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Cho tam giác ABC vuông tại A đường giao AH biếtAH=12cm BH=9cm.<br><br>Tính diện tích tam giác ABC
Lostsunrise [7]

Answer:

Step-by-step explanation:

AB^2 = HB^2 + AH^2 => AB = 15cm

Ta co cong thuc: 1/AH^2 = 1/AB^2 + 1/AC^2 => AC=20cm

Vay SABC= 1/2 .AB.AC = 1/2 .15.20=150cm^2

6 0
3 years ago
Is it possible for 3 to go into 32
posledela
Yes. By all means yes. Its very very possible. In fact it can go in there ten times over.
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Tristan is 22 years younger than Sydney. 8 years ago, Sydney's age was 2 times Tristan's age. How old is Tristan now?
Serjik [45]

Answer:

Sydney is 52 years old, and Tristan is 30.

Step-by-step explanation:

Represent Tristan's age by t and Sydney's by s.

Then s - 8 = 2(t - 8), and t = s - 22

Substituting s - 22 in the first equation, we get:

s - 8 = 2(s - 22 - 8), or

s - 8 = 2s - 60

Solving for s:  -2s + s = -60 + 8, or -s = -52.

Sydney is 52 years old, and Tristan is 30.

4 0
3 years ago
Convert 198 grams to kilograms
cluponka [151]

Answer:

it's 0.198

Step-by-step explanation:


5 0
3 years ago
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Sam invests a sum of money in a retirement account with a fixed annual interest rate of 7%
Zolol [24]

Answer:

The initial amount of investment was $7,822

Step-by-step explanation:

The formula for compound interest, including principal sum is:

A=P(1+\frac{r}{n})^{nt}, where

  • <em>A</em> is the future value of the investment/loan, including interest
  • <em>P</em> is the principal investment amount  
  • <em>r</em> is the annual interest rate (decimal)
  • <em>n</em> is the number of times that interest is compounded per unit t
  • <em>t</em> is the time the money is invested or borrowed for

Let us use this rule to solve the question

∵ Sam invests a sum of money in a retirement account with a fixed

   annual interest rate of 7% compounded quarterly

∴ <em>r </em>= 7% = \frac{7}{100} = 0.07

∴ <em>n</em> = 4 ⇒ compounded quarterly

∵ After 13 years, the balance reaches $19,280.02

∴ <em>A</em> = 19,280.02

∴ <em>t </em>= 13

Substitute these values in the rule above to find <em>P</em>

∵ 19,280.02=P(1+\frac{0.07}{4})^{4(13)}

∴ 19,280.02=P(1.0175)^{52}

→ Divide both sides by (1.0175)^{52}

∴ 7,821.99888 = <em>P</em>

→ Round it to the nearest dollar

∴ 7,822 = <em>P</em>

∴ <em>P</em> = $7,822

∴ The initial amount of investment was $7,822.

8 0
3 years ago
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