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OverLord2011 [107]

3 years ago

5

A group of random people were polled about whether they prefer to communicate using text messages or by phone calls. The results

are shown in the conditional relative frequency table by row.

2 answers:

denis23 [38]3 years ago

8 0

The answer is C. 54%

Viefleur [7K]3 years ago

8 0

Answer:

C

Step-by-step explanation:

You might be interested in

Which value is a solution of the equation 2 – 8x = –6?

natulia [17]

Simple....

Which value is a solution of the equation 2 – 8x = –6?(1 point)• 1• –1• 8
You have: 2-8x=-6

plug n chug...

2-8(1)=-6

2-8=-6

-6=-6 (Yes) (<<---Answer)

2-8(-1)=-6

2+8=-6

10=-6 (No)

2-8(8)=-6

2-64=-6

-62=-6 (No)

3. Which ordered pair is a solution of the equation y = x – 4?(1 point)• (2, 6)• (6, 2)• (–2, 6)• (–6, 2)
Plug n chug.....

you have:y=x-4

(2,6)

6=2-4

6=-2 (No)

(6,2)

2=6-4

2=2 (Yes) (<<<---Answer)

(-2,6)

6=-2-4

6=-6 (No)

(-6,2)

2=-6-4

2=-10 (No)

4. Which ordered pair is a solution of the equation y = 4x?(1 point)• (1, 3)• (–1, –4)• (–4, –1)• (1, –4)
You have: y=4x

(1,3)

3=4(1)

3=4 (No)

(-1,-4)

-4=4(-1)

-4=-4 (Yes) (<<<----Answer)

(-4,-1)

-1=4(-4)

-1=-16 (No)

(1,-4)

-4=4(1)

-4=4 (No)

5. Which ordered pair is a solution of the equation y = –9x + 4?(1 point)• (10, –86)• (–4, –58)• (6, –41)• (–6, 57)

You have: y=-9x+4

(10,-86)

-86=-9(10)+4

-86=-90+4

-86=-86 (Yes) (<<<---Answer)

(-4,-58)

-58=-9(-4)+4

-58=36+4

-58=40 (No)

(6,-41)

-41=-9(6)+4

-41=-54+4

-41=-50 (No)

(-6,57)

57=-9(-6)+4

57=54+4

57=58 (No)

6. Mike and his best friend Dan have the same birthday, but Mike is three years older than Dan. Let the variable x represent Mike’s age and y represent Dan’s age. Which graph represents the relationship between Dan’s age and Mike’s age?(1 point)

There is no graph.

7. Solve the following equation.
–4 = g + 1(1 point)• g = –4• g = 4• g = –5• g = –3
You have: -4=g+1

-4=g+1
-1 -1

-5=g (Answer/C)

8. Solve the following equation.
x – 3 = –5(1 point)• x = • x = –2• x = –8• x = 15
You have: x-3=-5

x-3=-5
+3 +3

x=-2 (Answer)
9. Solve the following equation.
2.8 = 2y(1 point)• y = 1.4• y = • y = 2.8• y = 0.6

You have: 2.8=2y

2.8=2y

$\frac{2.8}{2} = \frac{2y}{2}$

1.4=y (Answer)

10.
Solve the following equation.

–8 =
(1 point)
• z = –
• z = –5
• z = –24
• z =
11.
Solve the following equation.

–9 =
(1 point)
• n =
• n =
• n =
• n =

NUMBER 10 AND 11..THERE IS NOTHING I CAN WORK WITH,THEREFORE I CAN NOT GIVE AN ANSWER....

12.
Which equation is an identity?
(1 point)
• 11 – (2v + 3) = –2v – 8
• 5w + 8 – w = 6w – 2(w – 4)
• 7m – 2 = 8m + 4 – m
• 8y + 9 = 8y – 3

You have:

11-(2v+3)=-2v-8

11-2v-3=-2v-8

-2v+8=-2v-8 (No)

5w+8-w=6w-2(w-4)

4w+8=6w-2w+8

4w+8=4w+8 (Yes) (<<<<--Answer)

7m-2=8m+4-m

7m-2=7m+4 (No)

8y+9=8y-3 (No)

13.
Which equation has no solution?
(1 point)
• 8 – (5v + 3) = 5v – 5
• 3m – 6 = 5m + 7 – m
• 3w + 4 – w = 5w – 2(w – 2)
• 7y + 9 = 7y – 6

You have:

8-(5v+3)=5v-5

8-5v-3=5v-5

-5v+5=5v-5
+5 +5
-5v+10=5v
+5v +5v

10=10v

1=v

3m-6=5m+7-m

3m-6=4m+7
-3m -3m

-6=m+7
-7 -7

-13=m

3w+4-w=5w-2(w-2)

2w+4=5w-2w+4

2w+4=3w+4
-2w -2w

4=w+4
-4 -4

0=w

7y+9=7y-6
-7y -7y

NO SOLUTION (ANSWER)

Thus, your answer.

5 0

3 years ago

How many tens and ones are in the number 15

nordsb [41]

1 ten and 5 ones :D right?

3 0

3 years ago

Solve the system of linear equations by elimination −2x+3y=7 and 5x+8y=−2

forsale [732]

You would need to make them eliminate so I would multiply the entire first one by 2.5 to make the X's cancel out. So you would end up with -5X+7.5Y=17.5. The X's would cancel and you would be left with 15.5Y=15.5. So Y=1. Then replace Y into one of the equations. I'm going to use the top again. -2X+3(1)=7. Subtract 3 from both sides to get -2x=4. Divide both sides by negative 2 to get X=-2. So the solution would be (-2,1)

4 0

3 years ago

5, 3.1.24<br><br> f(x) = 3x² + 5; find f(x + 3) - [f(x) + 3]

Aleks [24]

Given that $f(x) = 3x^2 + 5$ , we have

$f(x + 3) = 3 (x + 3)^2 + 5 \\\\= 3 (x^2 + 6x + 9) + 5 \\\\= 3x^2 + 18x + 32$

so that

$f(x+3) - (f(x) + 3) = (3x^2 + 18x + 32) - (3x^2 + 8) \\\\= \boxed{18x + 24}$

3 0

2 years ago

Roger Hunt intends to purchase one of two car dealerships currently for sale in a certain city. Records obtained from each of th

ValentinkaMS [17]

Answer:

(a) Dahl Motors = 8 Cars

Farthington Auto Sales = 7 Cars

(b) Roger will purchase from Farthington Auto Sales with higher weekly profit

Step-by-step explanation:

Dahl Motors / Week

(1) Car Sold 5 6 7 8 9 10 11 12

(2) Probability 5% 9% 14% 24% 18% 14% 11% 5%

(3) (2 x 3 ) 0.25 0.54 0.98 1.92 1.62 1.40 1.21 0.60

(4) Average sales = 0.25 + 0.54 + 0.98 + 1.92 + 1.62 + 1.40 + 1.21+0.60

= 8.52‬ cars/ week

= 8 cars /week

Profit/ Car = $544

Total weekly profit = 544 x 8

= $4,352

Farthington Auto Sales/ Week

(1) Car Sold 5 6 7 8 9 10

(2) Probability 8% 21% 31% 24% 10% 6%

(3) (2 x 3 ) 0.40 1.26 2.17 1.92 0.9 0.6

(4) Average sales = 0.40 + 1.26 + 2.17 + 1.92 + 0.90 + 0.60

= 7.25‬ cars/ week

= 7 cars/week

Profit/ Car = $651

Total weekly profit = 651 x 7

= $4,557‬

From the calculations above , Roger will purchase from Farthington Auto Sales

3 0

3 years ago