James is x years old, the sum of him and his brother's age is 10. 3 years ago, James brother was three times older than James. Use this to write an equation

9514 1404 393

  7-x = 3(x -3)

Step-by-step explanation:

The brother's age is 10-x. Three years ago, their ages were (x-3) and (7-x). At that time, the relation between their ages was ...

  7-x = 3(x -3)

The solution is ...

  16 = 4x . . . . add 9+x

  x = 4 . . . . . . divide by 4

James is 4; his brother is 6.

here is the

mark brainliest pl

c. 27 units.

step-by-step explanation:

we are told that in circle a, ∠bae ≅ ∠dae.

we can see from our given diagram that in and ;

, as these are radii of our given circle.

therefore, by sas congruence postulate.

hence, side be will be equal to side de as corresponding parts of congruent triangles are congruent. so we can set an equation to find the value of x as:

now let us substitute x=17 in the expression for the length of be.

therefore, length of be will be 27 units and option c is the correct choice.