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torisob [31]
3 years ago
7

My age is the difference between twice my age in 4 years and twice my age 4 years ago how old am I?

Mathematics
1 answer:
Llana [10]3 years ago
6 0

Answer: 16

Step-by-step explanation:

let a = your present age

a = 2(a+4) - 2(a-4)

a = 2a + 8 - 2a + 8

a = 2a - 2a + 8 + 8

a = 16 yrs is your age

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Y=6x+5 is the equation. what is its gradient
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y = 6x + 5 is an example of a slope-intercept form of a straight-line equationl.

The slope-intercept equation is like this:

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y = 6x + 5

6 is the slope
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Since slope and gradient are synonymous, 6 is the gradient of the above equation.
8 0
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Given f(x) = 2x – 3, find the x value such that f(x) = 8.
jok3333 [9.3K]

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Ursula and Velda live 4 km apart. They leave their homes at the same time, walking towards each other. If Ursula walks at a rate
vladimir2022 [97]

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Step-by-step explanation:

Given

Distance between Ursula and Velda house is 4 km or 4000 m

Ursula walks at the rate of 400\ m/h\ or\ \frac{20}{3}\ m/min

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Time taken by them to cover 4000 m is

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