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Simora [160]
4 years ago
12

Johnson middle school had 240 students last year. This year. There are 192 students. Find the percent of change. State whether t

his percent of change is an increase or decrease???
Mathematics
1 answer:
Rina8888 [55]4 years ago
7 0

Answer:

Step-by-step explanation:

192 ÷ 420 = 0.457

0.457 x 100 = 45.7

But there can't be a percentage increase or decrease because there is no percentage to compare it to, there should be information for the change in students of the last year

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Jenna saves $3 for every $13 dollars she earns. Vanessa saves $6 for every $16 she earns. Is Jenna's ratio of money saved to mon
jeka94

We have been given that Jenna saves $3 for every $13 dollars she earns. Vanessa saves $6 for every $16 she earns.

We can compare the ratios of saved money to earned money by Jenna and Vanessa as:

\frac{3}{13} =\frac{6}{16}    

Let us simplify our equation.

0.2307692307692308=0.375    

We can see that 0.231\neq 0.375 , therefore, Jenna's ratio of money saved to money earned is not equivalent to Vanessa's ratio of money saved to money earned.


5 0
3 years ago
Are 17 heartbeats in 15 seconds and 68 heartbeats in 60 seconds Equivalent
Andre45 [30]

Answer:

1.133.

Step-by-step explanation:

Yes because if you divide 17 by 15 you get about 1.133 and if you divide 68 by 60 you also get about 1.133.

4 0
3 years ago
Read 2 more answers
Scott invests $1000 at a bank that offers 6% compounded annually.Write an equation to model the growth of the investment
gladu [14]

Answer:

Step-by-step explanation:

Using the formula for the growth of investment:

           .....[1]

where,

A is the amount after t year

P is the Principal

r is the growth rate in decimal

As per the statement:

Scott invests $1000 at a bank that offers 6% compounded annually.

⇒P = $1000 and r = 6% = 0.06

substitute these in [1] we get;

⇒

Therefore, an equation to model the growth of the investment is,

7 0
2 years ago
F(x)=4x+1 and g(x)=x^2-5find(f-g)(x)
Vinvika [58]

Answer:

<h2>-x²+4x +6</h2>

Step-by-step explanation:

Given f(x)=4x+1 and g(x)=x²-5

(f-g)(x) is derived by taking the difference of both functions

(f-g)(x) = f(x)-g(x)

(f-g)(x) = 4x+1 - (x²-5)

(f-g)(x)  = 4x+1-x²+5

(f-g)(x)  = -x²+4x +6

This gives the requires expression

4 0
3 years ago
The Vanderbloom family already traveled 200 miles on their vacation. The total distance that they will travel (d) is a function
allochka39001 [22]

Answer:

See explanation

Step-by-step explanation:

The question is incomplete. However, I'll ask and answer possible questions that emanate from the given parameter.

A possible question is: Write the given information as a function of distance.

We have that;

Base\ Distance = 200

Time = t

Rate = r

The function would be calculated as:

Base Distance + Rate * Time

Substitute values for Base Distance, Rate and Time

This gives:

200 + r * t

200 + rt

Hence;

Distance = 200 + rt

Another possible question is to determine the current distance travelled by the family at a rate of 80 miles per hour for 3 hours.

Here, we have:

r = 80

t = 3

Substitute these values in Function = 200 + rt

Distance = 200 + 80 * 3

Distance = 200 + 240

Distance = 440

3 0
3 years ago
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