Plz help question below 20 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!! ONLY ANSWER WITH EXPLANATION

Teresa has scored 77, 80, 63, 61 and 92 on previous test what score does she need on her next test on her average will be 77

Rainbow [258]

Average = 77=(77+80+63+61+92+Next test)/6

Therefore, 77*6=77+80+63+61+92+Next test

Next test score = (77*6)- (77+80+63+61+92)= 89

6 0

3 years ago

Read 2 more answers

Which of the following statements is not true about the numbers 7 and -7? They are opposite numbers. They form a zero pair. They

Irina-Kira [14]

We need to find which statement is not true:

Let us check each statement:

-They are opposite numbers.

Opposite numbers have the same distance away from zero. Hence, 7 and -7 are opposite numbers.

-They form a zero pair:

7-7 =0, the statement is true.

- They have the same absolute value

The absolute value is the not negative value no matter the sign.

Hence, l7l= 7 and l-7l= 7.

-They have a sum of -14.

Then:

7+(-7) = 0

Therefore, the last statement "They have a sum of -14" is not true.

7 0

1 year ago

A cell phone package charges $39 even if 0 minutes are used during the month. Each additional minute of talk time adds $0.07. Wh

zmey [24]

Answer:

total cost = $ 81

Step-by-step explanation:

It is given that the fixed cost is $ 39

and the cost per minute is $0.07

Let us assume the number of minutes used be x

we have

total cost = cost per minute × number of minutes used + fixed cost

we plug the given values, so we have

$total cost = 0.07 x+39$

we need to find the total cost for 10 hours used

x= 10 hours = 10(60) minutes = 600 minutes

so we have total cost for x= 600 minutes

$total cost = 0.07(600)+39$

$total cost =42+39 = 81$

hence the total cost = $ 81

3 0

3 years ago

3. Make a class frequency table using 2 rule of the following data. Find the Mean and make a Cumulative frequency Histogram [10]

sashaice [31]

Answer: Mean = 284

Step-by-step explanation:

Data:

125, 126, 127, 127, 137

201, 202, 207, 211, 215, 218, 224, 237, 261

301, 308, 310, 315, 330, 330, 360, 380, 393, 394

401, 401, 410, 421, 422, 424

Class Frequency Table:

$\boxed{\begin{array}{c|c|c}\underline{\text{Intervals}}&\underline{\text{\qquad Frequency\qquad}}&\underline{\text{Cumulative Frequency}}\\0-49&0&0\\50-99&0&0\\100-149&5&5\\150-199&0&5\\200-249&8&13\\250-299&1&14\\300-349&6&20\\350-399&4&24\\400-449&6&30\\450-499&0&30\end{array}}\\.\qquad \qquad \qquad \qquad \quad \ 30$

Mean:

The sum of the numbers divided by the quantity of numbers:

8518/30 = 283.933

Cumulative Frequency Histogram:

Create the graph based on the Interval and Cumulative Frequency of the class frequency table above. (see image)

3 0

4 years ago

Is this table proportional? XY 4 8 5 10 6 12 10 20

IrinaVladis [17]

Answer: Yes b/c everything gets multiplied by 2

7 0

3 years ago