• ### Reuben notices that in 7 years time he will be twice as old as Amos is now. If Reuben is currently 17 years old, how old is Amos?

Reuben is x years old In 7 years time he will be x + 7 years old Amos is y years old now x + 7 = 2y 17 + 7 = 2y y = 12 Amos is 12
Reuben is x years old In 7 years time he will be x + 7 years old Amos is y years old now x + 7 = 2y 17 + 7 = 2y y = 12 Amos is 12
4 answers · Mathematics · 2 days ago
• ### A line is drawn so it passes through the points (3,4) and (4,1). What is the slope of the line?

m = (1 - 4) / ( 4 - 3) m = - 3 / 1 m = - 3
m = (1 - 4) / ( 4 - 3) m = - 3 / 1 m = - 3
6 answers · Mathematics · 2 days ago
• ### What s in between 3/5 and 4/5?

3/5______________4/5 6/10____________8/10 _______7/10_______
3/5______________4/5 6/10____________8/10 _______7/10_______
5 answers · Mathematics · 3 days ago
• ### How do I solve f(x)=2x-5;find f(x)= -3?

2x - 5 = - 3 2x = 2 x = 1
2x - 5 = - 3 2x = 2 x = 1
5 answers · Mathematics · 3 days ago
• ### How do i know if a number is irrational?

A rational number is a number that can be put in the form p/q where p and q are integers. An irrational number cannot be put in this form.
A rational number is a number that can be put in the form p/q where p and q are integers. An irrational number cannot be put in this form.
4 answers · Mathematics · 3 days ago
• ### Explain how you can tell that 31/33 is in simpleswt form?

Because 31 is a prime number and cannot be divided by a number smaller than 31. i.e. cannot be simplified.
Because 31 is a prime number and cannot be divided by a number smaller than 31. i.e. cannot be simplified.
7 answers · Mathematics · 3 days ago
• ### If ax-2y= -3 is perpendicular to x + 2y=3 find a?

x + 2y = 3 2y = 3 - x y = 3/2 - (1/2) x m1 = - 1/2 m2 = 2 2y = - ax - 3 y = (-a/2) x - 3/2 -a/2 = 2 a = - 4
x + 2y = 3 2y = 3 - x y = 3/2 - (1/2) x m1 = - 1/2 m2 = 2 2y = - ax - 3 y = (-a/2) x - 3/2 -a/2 = 2 a = - 4
4 answers · Mathematics · 3 days ago
• ### Alma is solving the equation 4a -5= 2a -3 circle her mistake and correct it?

4a - 5 = 2a - 3 2a = - 3 + 5 2a = 2 a = 1
4a - 5 = 2a - 3 2a = - 3 + 5 2a = 2 a = 1
6 answers · Mathematics · 5 days ago
• ### Find the absolute value |-53|?

53
53
4 answers · Mathematics · 5 days ago

4 - 14 = - 10
4 - 14 = - 10
3 answers · Mathematics · 5 days ago
• ### How many years has it been since 64AD?

2018 0064 ------- 1954 years --------
2018 0064 ------- 1954 years --------
5 answers · Mathematics · 6 days ago
• ### How to solve (1/(x-1))-(x/(x+1))-2=0?

x + 1 - x ( x - 1 ) - 2 (x - 1) (x + 1) = 0 x - 1 - x^2 + x - 2 [ x^2 - 1 ] = 0 x - 1 - x^2 + x - 2x^2 + 2 = 0 3x^2 - 2x - 1 = 0 [ 3x + 1 [ x - 1 ] = 0 x = - 1/3 , x = 1
x + 1 - x ( x - 1 ) - 2 (x - 1) (x + 1) = 0 x - 1 - x^2 + x - 2 [ x^2 - 1 ] = 0 x - 1 - x^2 + x - 2x^2 + 2 = 0 3x^2 - 2x - 1 = 0 [ 3x + 1 [ x - 1 ] = 0 x = - 1/3 , x = 1
4 answers · Mathematics · 6 days ago
• ### A die is rolled three times. What is the probability of rolling a two each time?

P ( three 2s ) = 1/6 x 1/6 x 1/6 = 1 / 216
P ( three 2s ) = 1/6 x 1/6 x 1/6 = 1 / 216
4 answers · Mathematics · 7 days ago
• ### Express the set of numbers 𝑥 satisfying the given condition as an interval: |𝑥|<8?

{ x : - 8 < x < 8 }
{ x : - 8 < x < 8 }
3 answers · Mathematics · 7 days ago
• ### How do you simplify 2(x+2/3)-3? The answer says 2x-5/3 but Idk how they got that. I keep getting 2x+4/3 -3?

If expression is :- 2 [ x + (2/3) ] - 3 :- 2x + 4/3 - 3 2x - 5/3
If expression is :- 2 [ x + (2/3) ] - 3 :- 2x + 4/3 - 3 2x - 5/3
5 answers · Mathematics · 7 days ago

3a + 2b = 18 5a + 3b = 29 -9a - 6b = - 54 10a + 6b = 58______add a = 4 12 + 2b = 18 b = 3 a : b = 4 : 3
3a + 2b = 18 5a + 3b = 29 -9a - 6b = - 54 10a + 6b = 58______add a = 4 12 + 2b = 18 b = 3 a : b = 4 : 3
5 answers · Mathematics · 1 week ago
• ### Where do I put 30° and 60° on a triangle for finding sin(240°)? Urgent, please: test tomorrow!?

sin 240 ⁰ = - sin 60 ⁰ = - √3 / 2 Third quadrant angle
sin 240 ⁰ = - sin 60 ⁰ = - √3 / 2 Third quadrant angle
3 answers · Mathematics · 1 week ago
• ### Multiple of 2pi/3 is 2pi/3, 4pi/3, 2pi ,8pi/3...... How 2pi come after 4pi/3 here ?

2π = 6π/3 hence 2π/3 , 4π/3 , 2π , 8π/3 ---------
2π = 6π/3 hence 2π/3 , 4π/3 , 2π , 8π/3 ---------
7 answers · Mathematics · 1 week ago
• ### X upon 2 +y equls to 0.8 and 7upon x+ yupon 2 equals to 10 by substitution method?

Presentation is unclear. Brackets must be used.
Presentation is unclear. Brackets must be used.
2 answers · Mathematics · 1 week ago
• ### What is the answer for x in this problem: 6 - x divided by 2 = 4?

[ 6 - x ] / 2 = 4 6 - x = 8 6 = 8 + x - 2 = x
[ 6 - x ] / 2 = 4 6 - x = 8 6 = 8 + x - 2 = x
24 answers · Mathematics · 2 weeks ago