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

Mini-Project: Cents and the Central Limit Theorem 1. Collect a sample of at least 50 pennies by setting aside all the pennies you receive in change for severa

what is a high structure part of a church which has 5 letters

what is a high structure part of a church which has 5 letters

in the number 13,407.036 there are two 3's. Explain how the values of the 3's are related.

What is the amplitude of y=1/2 sin2x

how were north american colonies all similar in the 1700s?

What are the functions of receptors in our body? Think of a situation where receptors do not work properly. What problems are likely to arise?

you have a standard deck of 52 cards. you pick one card and then, with out putting the first card back, you pick a second card. what is the probability that bot

The function of the eardrum in the middle ear is to

What were the major causes of WWII? Please include at least 4 answers.