angelacevessolis angelacevessolis

03-09-2019
Mathematics

contestada

in 20 years a child's age will be 7 years less than four times her current age. find the child's current age

Respuesta :

vaarun5 vaarun5

03-09-2019

X + 20 = 4X - 7
X = Current Age
3X = 27
X = 9
The child’s current age is 9 years old

Answer Link

Vividerla Vividerla

03-09-2019

Answer:

They are 9

Step-by-step explanation:

Their current age will be represented by x

x + 20 = 4x - 7

-20 -20

x = 4x - 27

-4x -4x

-3x = -27

—— ——

-3 -3

x = 9

Answer Link

Otras preguntas

which of the following statements would describe the significance of the battle of Kettle Creek A. Weapons in horses were taken from the British B. the backcoun

Rules of behavior known as the Ten Commandments were derived from what tradition

What is the multiplicative inverse of 1/2

Most students overestimate their skill level and abilities to take open book tests. True or false

What is 3+3+4x1??Pls help

1. The following formula relates the quantities temperature in Celsius (C) and temperature in kelvins (K). C = K − 273.15 (a) Write two other related equations.

If the amount of atoms of each type on the left and right sides of a reaction differs, what must be done to balance it?

What were NOT roles of the assemblies of the Greek City-States?

Answer to 350 kilometers in 5 hours

10 is 40% of what number