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3 years ago

Practice Q:If I am 13 and I was born in 2003,and my brother was born in 2006,then how old is he?

Mathematics

2 answers:

anzhelika [568]3 years ago

6 0

Yes, I agree, your brother is 10.

sukhopar [10]3 years ago

4 0

Hi friend,

Your sister age will be 10 years.

13=2003
12=2004
11=2005
10=2006(answer)

Hope it helps....

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PLEASEEE I DONT KNOW HOW TO DO ITTTT. THE 35.8 IS RIGHT BUT I CANT GET MEASURE OF ANGLE C AND A I GOT 46.2 for A AND 70.8 for C

Rashid [163]

Answer:

Hope it helps....!!!!!

Step-by-step explanation:

AB = c = 38

BC = a = 29

AC = b

Angle ABC = 63 degrees

Solving for AC "b":

Cosine rule: c^2 = a^2 * b^2 -2ab * cos C

38^2 = 29^2 * b^2 - (2* 29) * b * (cos 38)

1444 = 841 * b^2 - 58 * b * 0.955

(1444 + 58)/0.955 = b^2 * b

1572.77486911 = b^3

11.62935 = b

11.63 = b (rounded to two decimal places)

Now solving for angle A:

Sine rule: a/sinA = b/sinB

29/sinA = 11.63/sin(63)

sinA/29 = sin(63)/11.63

sin A = (sin(63)/11.63) * 29

sin A = 0.41731

A = sin^-1 (0.41731)

A = 24 degrees 39 minutes 53 seconds

Now solving for angle C:

Sine rule: c/sinC = b/sinB

38/sinC = 11.63/sin(63)

sinC/38 = sin(63)/11.63

sin C = (sin(63)/11.63) * 38

sin C = 0.54682

C = sin^-1 (0.54682)

C = 33 degrees 8 minutes 56 seconds

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2 years ago

The sum of two numbers is 46. The larger number is two less than three times the smaller number. Find the numbers.

melamori03 [73]

Answer: The numbers are: <u>x = 34, y = 12</u>

Step-by-step explanation:

Lets say the numbers are x and y. The two equations are:

x+y=46

x= 3y-2

Next you use substitution for x in the first equation which brings you to

3y-2 + y = 46 which simplyfies to:

4y - 2 = 46

4y = 48

48 / 4 = 12

y = 12

Then you plug back y=12 in either of the equation to solve for x:

x = 3y - 2

x = 3(12) - 2 = 36 - 2 = 34

x = 34, y = 12

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miss Akunina [59]

Answer: 1000000

Step-by-step explanation:

5x100

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2 years ago

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sweet [91]

You would save $3.04

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A broker had a taxable income of $77,050 last year. if she paid 10% of her income between $0 and $8350, 15% of her income betwee

stellarik [79]

10 percent is the same as saying 0.10 so we simply do this sum of all parts approach.
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