3 years ago

john has x years his sister has 2 years more if the sum of their age is 10 what is the age of her sister

Mathematics

1 answer:

sveta [45]3 years ago

7 0

John is 4 and his sister is 6.

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Help asap pls -=-=-=-=--------------

bixtya [17]

Answer:

-1/3

Step-by-step explanation:

at x=0 y= 5

at x=3 y= 4

y=ax+b

b= 5

4=3x+5

3x= -1

x= -1/3

$y = - \frac{x}{3} + 5$

5 0

2 years ago

What additional piece of information must be known in order to calculate the volume of the cylinder below?

Brilliant_brown [7]

Answer:

Step-by-step explanation:

the formula is V = πr2h

pie times radius to the second power times hight

6 0

2 years ago

Factor. 3x(y−4)−2(y−4) Enter your answer in the box.

NISA [10]

Answer: Use the distributive property to multiply 3 by y−4.

3y−12−2(y−4)

Use the distributive property to multiply −2 by y−4.

3y−12−2y+8

Combine 3y and −2y to get y.

y−12+8

Add −12 and 8 to get −4.

Anwser:

y−4

Step-by-step explanation:

Hope this helps!

6 0

2 years ago

Someone help pls I forgot how to do it

yawa3891 [41]

(2,4)

Step-by-step explanation:

I'm not sure in the slightest but with the formula I learned I think this is correct

3 0

2 years ago

4+(−1 2/3) i don't get how to this cuz there aren't two fractions, just one.

kenny6666 [7]

Answer:

2 1/3

Step-by-step explanation:

4 + ( -1 2/3)

= 4 - 1 2/3

= 4 - 5/3

= 12/2 - 5/3

= 7/3

= 2 1/3

5 0

2 years ago