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3 years ago

10

Please Help I Will Give Brainliesttt!Select the correct answer. What was the most common rating in the 26-35 age group? Average

B. Good C. Excellent D. Poon

1 answer:

suter [353]3 years ago

6 0

Answer:

B. Good

Step-by-step explanation:

26-35 age group:

Excellent - 33/97

Good - 50/97

Average - 5/97

Poor - 9/97

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How many Solutions does this system have? (1 point)

mixas84 [53]

The given system of equation that is $2x+y=3$ and $6x=9-3y$ has infinite number of solutions.

Option -C.

<u>Solution:</u>

Need to determine number of solution given system of equation has.

$\begin{array}{l}{2 x+y=3} \\\\ {6 x=9-3 y}\end{array}$

Let us first bring the equation in standard form for comparison

$\begin{array}{l}{2 x+y-3=0} \\\\ {6 x+3 y-9=0}\end{array}$

$\frac{a_{1}}{a_{2}}=\frac{b_{1}}{b_{2}} \neq \frac{c_{1}}{c_{2}}$

To check how many solutions are there for system of equations $a_{1} x+b_{1} y+c_{1}=0 \text{ and }a_{2} x+b_{2} y+c_{2}=0$ , we need to compare ratios of $\frac{a_{1}}{a_{2}}, \frac{b_{1}}{b_{2}} \text { and } \frac{c_{1}}{c_{2}}$

In our case,

$a_{1} = 2, b_{1}= 1\text{ and }c_{1}= -3$

$a_{2} = 6, b_{2} = 3,\text{ and }c_{2} = -9$

$\begin{array}{l}{\Rightarrow \frac{a_{1}}{a_{2}}=\frac{2}{6}=\frac{1}{3}} \\\\ {\Rightarrow \frac{b_{1}}{b_{2}}=\frac{1}{3}} \\\\ {\Rightarrow \frac{c_{1}}{c_{2}}=\frac{-3}{-9}=\frac{1}{3}} \\\\ {\Rightarrow \frac{a_{1}}{a_{2}}=\frac{b_{1}}{b_{2}}=\frac{c_{1}}{c_{2}}=\frac{1}{3}}\end{array}$

As $\frac{a_{1}}{a_{2}}=\frac{b_{1}}{b_{2}}=\frac{c_{1}}{c_{2}}$ , so given system of equations have infinite number of solutions.

Hence, we can conclude that system has infinite number of solutions.

5 0

3 years ago

Scrat [10]

Answer:

The inverse of the function is;

x = (y + 2)/3

Step-by-step explanation:

Here in this question, we shall be calculating the inverse of a function.

The function is;

y = 3x - 2

Firstly, let w = x;

y = 3w -2

y + 2 = 3w

w = (y + 2)/3

Now replace w by x

x = (y + 2)/3

This is the inverse of the function

7 0

3 years ago

Convert 72 miles per hour into feet per second: Show all work.

koban [17]

Answer:

Step-by-step explanation:

72 mph = 105.6 ft per second

Thanks to google.com

6 0

3 years ago

Read 2 more answers

The following table shows the speed that 4 animals traveled today. For example, the turtle traveled 6 meters in 5 minutes.

den301095 [7]

Answer:

D. Ant

Step-by-step explanation:

To find the speed in meters per minute, divide meters by minutes:

turtle: 6/5

snail: 4/8 = 1/2

caterpillar: 7/7 = 1

ant: 12/8 = 3/2 = 1.5

The ant traveled at a rate of 1.5 meters per minute.

7 0

3 years ago

Please help! need answers today!!

erica [24]

Answer:

Step-by-step explanation:

log 31.3= 1.49554433755 (round to 1.496)

ln square root of 7= 0.97295507452 (round to .973)

3 0

3 years ago