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Lilit [14]
3 years ago
13

One brother says of his younger brother: “Two years ago, I was three times as old as my brother was. In three years’ time, I wil

l be twice as old as my brother.” How old are they each now?
Good Luck!!
Mathematics
2 answers:
aleksklad [387]3 years ago
5 0

Answer:

17

Step-by-step explanation:

Let us suppose two years ago my brother's age was x years

Then, my age was 3x

Three years from now, my brother's age will be (x +2+3) = (x+5) years

And my age will be (3x+2+3) = (3x+5) years

But it is given that i will be twice as old as my brother.

So, 2(x+5)= (3x+5)

or, x= 5 years

So my brother's present age is 5+2= 7 years

And my age is 5*3+2= 17 years

Crank3 years ago
4 0
Pretty sure that the answer is 17
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A percent bar graph compares each category to the _____________ as a percent.
iogann1982 [59]

Answer:

Total

Step-by-step explanation:

A percent bar graph compares the amount in each category to the total amount (sum of all categories) as a percentage.

5 0
3 years ago
Radioactive Decay Beginning with 16 grams of a radioactive element whose half -life is 30 years ,the mass y(in grams) remaining
Flura [38]

Answer:

the equation should be corrected to fit the data of the problem.  With the corrected equation a mass of 0.5 grams remains after 150 years

Step-by-step explanation:

for the mass y( in grams)

y=23* (1/2)^(t/45), t ≥ 0.

the initial mass is at t=0 , then

y= 23 grams  → should be 16 grams

half-life from the equation = 45 years → should be 30 years

the correct equation should be

y=16*(1/2)^(t/30), t ≥ 0

then after 150 years  → t= 150

y=16*(1/2)^(150/30)= 16*(1/2)^5 = 16/32 = 0.5 grams

then a mass of 0.5 grams remains after 150 years

5 0
3 years ago
You are making fruit baskets using 54 apples, 36 oranges, and 73 bananas. a. Explain why you cannot make identical fruit baskets
Basile [38]
Question 1:
73 is a prime number. It can only be divided by 1 and by itself. 

The GCF of the three numbers:
 54                               36                            73
1×54                           1×36                          1×73
2×27                          2×18
3×18                           3×12
6×9                            4×9
                                   6×6

GCF of 54, 36 and 73  is 1

GCF of 54 and 36 is 18

If we divide 54 apples into 18 baskets, we have 3 apples in each basket
If we divide 36 oranges into 18 baskets, we have 2 oranges in each basket
If we divide 73 bananas into 18 baskets, we have 4 bananas in each basket + one banana left over.

So the greatest number of identical fruit baskets we can make with the least amount of fruit left over is 18 baskets
3 0
3 years ago
20 points
Anna11 [10]
The answer is A) Dilation, because a dilation makes an object bigger or smaller. hope this helped :D 
7 0
3 years ago
Steven has a rectangular rug with a perimater of 16 feet the width of the rug is 5 feet what is the lenght if the rug
ziro4ka [17]
If the width is 5 feet you have to do 16 - 5 which equals 11 meaning 11 is your answer (the Length)

hope this helps
:)

5 0
3 years ago
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