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3 years ago

I dont understand function rules and tables

Mathematics

1 answer:

AURORKA [14]3 years ago

4 0

Answer:

so what we gonna about it ..you need help

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A mother is twice as old as her daughter 5 years from now she will be thrice as old as her daughter how old is the mother five y

Ilya [14]

Answer:

Let's define the variables:

M = mother's age

D = daughter's age.

"a mother is twice as old as her daughter"

This can be written as:

M = 2*D

"5 years from now she will be thrice as old as her daughter"

(M + 5) = 3*D

We want to know how old is the mother five years from now.

First, our equations are:

M = 2*D

(M + 5) = 3*D

First, we need to isolate one of the variables in one of the equations, because for the solution we want the mother's age, we should isolate the daughter's age.

Let's isolate D in the first equation:

M/2 = D

Now we can replace this in the other equation:

Now we can replace this on the other equation:

(M + 5) = 3*(M/2)

M + 5 - (3/2)*M = 0

-(1/2)*M + 5 = 0

5 = (1/2)*M

2*5 = M = 10

So the mother is 10 years old (this hasn't a lot of sense, maybe there is a wrong number on the question)

and 5 years from now, the mother will be:

10 + 5 = 15 years old.

8 0

3 years ago

Tony is 1⁄2 mile ahead of Laura on a jogging

Ainat [17]

Answer:

¼ hours or 15 minutes

Step-by-step explanation:

let the time it will for laura to catch up with Tony be 't'

Distance = speed × time

Distance corvered by Laura in time (t) = Distance corvered by Tony in time (t) + Distance between Tony and Laura

6×t = 4×t + ½

6t = 4t + ½

2t = ½

t = ¼ hours or 15 minutes

BRAINLIEST PLEASE

<h2>HOPE IT HELPS..... ;-)</h2>

6 0

3 years ago

Read 2 more answers

Or Simplify. Express your answer as a single term using exponents. 303*9x303*9

dmitriy555 [2]

${303}^{9} \times {303}^{9} \\ = {303}^{9 + 9} \\ = {303}^{18}$

Answer:

${303}^{18}$

Hope you could get an idea from here.

Doubt clarification - use comment section.

6 0

3 years ago

WILL MARK BRAINLIEST!!!!! PLS HELP!!

RUDIKE [14]

Answer:

112/17.92 = x, y = 112 + x

Step-by-step explanation:

You have to get x first, then plug in to next equation.

3 0

3 years ago

-4/7 + 2/7x -14x + 4/7

7nadin3 [17]

Answer:

-4/7+4/7=0

2/7x-14x= 13 5/7x

Answer =13 5/7x

7 0

4 years ago

I dont understand function rules and tables ​

I dont understand function rules and tables