Please answer correctly

The campers asked their counselor to tell them her age. She replied, “If you add four years to my present age, the result will b

dolphi86 [110]

Thus the counselor's age is 20 years.

<h2>Linear system</h2>

It is a system of an equation in which the highest power of the variable is always 1. A one-dimension figure that has no width. It is a combination of infinite points side by side.

<h3>Ratio and proportion</h3>

A ratio is an ordered pair of numbers a and b, written as a/b where b does not equal 0. A proportion is an equation in which two ratios are set equal to each other.

Given

Add four years to my present age, the result will be two times my camper’s.

Five years ago my age was 3/4 of what hers will be in eight years.

The present age of counselor.

<h3>How to find the present age of counselors?</h3>

Add four years to my present age, the result will be two times my camper’s. then,

y +4 = 2x .....1

Five years ago my age was 3/4 of what hers will be in eight years.

$\rm y - 5 = \dfrac{3}{4} (x + 8)$ .....2

From equation 1 and 2

$\begin{aligned} \rm 2x - 4 - 5 &= \dfrac{3}{4} (x + 8)\\8x - 36 &= 3x +24\\5x &= 60\\x &= 12 \end{aligned}$

Put the value of x in equation 2, then

y + 4 = 2x

y + 4 = 2 *12

y = 24 - 4

y = 20

Thus the counselor's age is 20 years.

More about the linear system link is given below.

brainly.com/question/20379472

3 0

2 years ago

Read 2 more answers

A student pressed the APPS key on a graphing calculator to simulate spinning a spinner. Which application should the student use

Dmitriy789 [7]

I had this question on a test :) and the answer is b because prob sim means probability simulator.

7 0

3 years ago

To multiply a monomial by a polynomial, use the ? Property

Genrish500 [490]

To multiply a monomial by a polynomial, you distribute the monomial into each number of the polynomial so you would be using the distributive property.

3 0

3 years ago

Oliver bought a scarf that costs 8 dollars and a watch that costs 9 dollars. At the counter he received a discount. If he paid o

Alex787 [66]

Answer: 4

Step-by-step explanation:8 + 9 = 17 you take what he paid 13 and subtract 13 from 17 and you get 4. 4 is how many dollars off he got.

7 0

3 years ago

The number of users on a website is 630 and is growing exponentially at a rate of 76% per year. Write a function to represent th

Dafna1 [17]

The exponential function that represents the number of users on the website after t is given by:

$A(t) = 630(1.76)^t$

The daily rate of change is of 20.82%.

<h3>What is an exponential function?</h3>

An increasing exponential function is modeled by:

$A(t) = A(0)(1 + r)^t$

In which:

A(0) is the initial value.

r is the growth rate, as a decimal.

For this problem, the parameters are given as follows:

$A(0) = 630, r = 0.76$

Hence the equation that represents the number of users on the website after t is given by:

$A(t) = 630(1.76)^t$

An year has 365 days, hence the rate of change per day is given by:

76/365 = 0.2082 = 20.82%.

The daily rate of change is of 20.82%.

More can be learned about exponential functions at brainly.com/question/25537936

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5 0

2 years ago