3 years ago

Today, the sum of the ages of Bea and her sister is 18. What would be the sum of their ages next year?

Mathematics

2 answers:

Katyanochek1 [597]3 years ago

7 0

B=bea's age

sister+b=18
next years, both grew 1
sister+1+b+1=18+1+1=20

sum is 20

Nady [450]3 years ago

6 0

Hello,

Let's assume a the age of Bea
b the age of her sister

This year: a+b=18

Next year (a+1)+(b+1)=(a+b)+(1+1)=(a+b)+2=18+2=20

You might be interested in

Triangle UVW is formed by the three squares G, H, and I:

Serjik [45]

The phytagorean theorem states a^2 + b^2 = c^2 And so your answer is C. (UV)^2+(VW)^2=(UW)^2, because 81+144=225

Since they are squares, the length of one sides square is equal to the area. UV, VW, and UW are all sides on a square. If you square them, you get their area, and then if you add the areas it will prove the phytagorean theorem correct.

3 0

3 years ago

Read 2 more answers

Please help me get the right answer?!

Aleksandr-060686 [28]

The answer is A, $\frac{1}{81}$ . This is because when plugging in -2 for x, the expression will look like this: $9^{-2}$ . To make the exponent positive, you have to flip it into a fraction. Then it will be $\frac{1}{9^2}$ . Lastly, you simplify the denominator into 81.

4 0

3 years ago

Read 2 more answers

8c^(2)+6c-2c^(2)-5c

iren [92.7K]

Answer:

6c^2 + c

Step-by-step explanation:

8^2 - 2c^2= 6c^2

6c-5c = c

6 0

2 years ago

Ejemplos de medicion directa <br> ?

dimulka [17.4K]

Answer:

what

Step-by-step explanation:

7 0

3 years ago

Find two numbers if their sum is 115 and their difference is 7

kobusy [5.1K]

Answer:

54+61

Step-by-step explanation:

54 + 61 = 115

61 - 54 = 7

4 0

3 years ago