question 4 pleeeeease help

Answer:

Dennis walked faster by 0.75 miles/hr

Step-by-step explanation:

a)Selina's speed

speed= distance

                 time

          = 2.5 miles       =  3.75 miles/hr = the slower

               2/3 hrs

b) Dennis' speed

speed =  distance

                  time

           =  6.75 miles        = 4.5 miles/hr  = the faster    

                   1.5 hrs

difference in speed:

faster - slower

4.5 - 3.75

=0.75 miles/hr

Dennis walked 0.75 miles per hour faster than Selina's speed.

Average speed is defined as the ratio of the total distance traveled by a body to the total time taken for the body to reach its destination.

To determine Selina's speed

speed = distance/time

speed = 2.5 miles/(2/3) hour

speed = 3.75 miles/hour

To determine Dennis' speed

speed = distance/time

speed = 6.75 miles/(1.5) hour

speed = 4.5 miles/hour

Here Dennis' speed is greater than Selina's speed which means Dennis walked faster.

So the difference in speed = Dennis' speed - Selina's speed

The difference in speed = 4.5 miles/hour - 3.75 miles/hour

The difference in speed = 0.75 miles/hr

Thus, Dennis walked 0.75 miles per hour faster than Selina's speed.

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It is a 75% increase

Answer:

75%?? im unsure

Step-by-step explanation:

Answer:

17.738

Step-by-step explanation:

to find x we’ll use sine

sin69=x/19

(remember that sine = opposite/hypotenuse)

so x = 19sin69

when typing this in your calculator you might need to change from radian to degree mode

Answer:

84°

Step-by-step explanation:

Alternating interior angles are congruent.

Is this for a test or something?

Incomplete question.

Answer:

The actual answer is 3.25

Step-by-step explanation:

I just took the test

the maximum number of hours that the repair person can work is 3.5 hours

Given :

Gloria doesn’t want to spend more than $100.

A service call will cost $35 and the labor will be an additional $20 per hour

Let 'h' be the maximum number of hours the repair can take.

Lets find out the total cost for 'h' hours

35+ additional 20 per hour

[tex]35+20h[/tex]

The total cost should not exceed 100

[tex]35+20h \leq 100\\20h \leq 100-35\\20h\leq 65\\Divide \; by \; 20\\h\leq 3.5[/tex]

So , the maximum number of hours that the repair person can work is 3.5 hours

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Answer:

22

Step-by-step explanation:

400/18=22.222222222

Round to 22

Answer: 10. Answer is -3

Step-by-step explanation:

Answer:

504

Step-by-step explanation:

I hope this helps you out!

Answer:

5/8

Step-by-step explanation:

They ate 6/16 which the left is 10/16 is 5/8

Answer:

B

Step-by-step explanation:

6 x 2.11 = 12.66

The value of a 1-pint serving of shelter will be 12.66 liters. The correct option is b.

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also represent the logical syntax's operation order and other properties.

Given that Bob is having a cookout. He bought 6 litres of seltzer water. The quantity of water for 1 point of serving is,

Quantity = 6 x 2.11

Quantity = 12.66

The quantity will be equal to 12.66 pints.

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Answer:

Step-by-step explanation:

The share of Boadu is Gh€ 222,222.22 if Boadu and Ansah formed a company and agreed that their annual profit will be shared in the ratio 4:5 respectively.

It is described as the comparison of two quantities to determine how many times one obtains the other. The proportion can be expressed as a fraction or as a sign: between two integers.

We have:

Boadu and Ansah formed a company and agreed that their annual profit will be shared in the ratio 4:5 respectively.

Let 4x be the share of Boadu and 5x be the share of Ansah

4x + 5x = 5,000,00

9x = 5,000,00

x = 55555.55

The share of Boadu = 4x = 4(55555.55) = 222,222.22

Thus, the share of Boadu is Gh€ 222,222.22 if Boadu and Ansah formed a company and agreed that their annual profit will be shared in the ratio 4:5 respectively.

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Answer:

6

Step-by-step explanation:

6/3 = 2

Answer:

/ A = 24°

/ B = 156°

Step-by-step explanation:

Supplementary angles add up to 180°.

_________________________________

Therefore, / A + / B = 180

(9x - 12) + (24x + 60) = 180

9x - 12 + 24x + 60 = 180

33x + 48 = 180

33x = 180 - 48

33x = 132

x = 132/33

x = 12/3

x = 4

_________________________________

/ A = (9x - 12)

= (9(4) - 12)

= (36 - 12)

= 24°

/ B = (24x + 60)

= (24(4) + 60)

= (96 + 60)

= 156°

_________________________________

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Answer:

1. 27

2. 1 and 2 = 17

3. 55

4. 55

5. 70

6. 125

7. 55

8. 95

9. 140

10. 40

11. 65

12. 75

13. 115

14. 27

15. 27

Step-by-step explanation:

Answer:

area = length x width or LW

Step-by-step explanation:

the answer is 6 1/15

Answer:

8.5 hours

Step-by-step explanation:

a). 10h + 45 = 130

b). 10h = 130 - 45 ⇒ h = 8.5 hours

Answer:

B

Step-by-step explanation:

A is Standard Intercept Form

B is Point Slope Form

The rest are used for other problems I'm unsure of

Answer:

A. tan A = sin A / sin C

Step-by-step explanation:

Answer:

tan A = sin A / sin C

Step-by-step explanation:

Answer: Baxter

Step-by-step explanation:

To solve this question, we need to know that:

12 inches = 1 foot

36 inches = 1 yard

The number of ribbon for each person will be:

Carol = 42 ribbons

Tino = 2.5 feet = 2.5 × 12 = 30 ribbons

Baxter = 1.5 yard = 1.5 × 36 = 54 ribbons

Therefore, Baxter has the most ribbon

Answer:

8a+1=33

Step-by-step explanation:

you can solve 3a-2=10 by simplifying to 3a=12, so a=4. Then you replace the a in 8a+1 with 4 to get 32+1, which is 33

Answer:

33

Step-by-step explanation:

3a-2= 10

3a=12

a=4

in this equation a=4 so you substitute that value into the other equation

8(4) +1=33

Answer:

1.5

Step-by-step explanation:

3÷2= 1.5

6÷4=1.5

12÷8= 1.5

Answer:

the answer would be option C. I just took the quiz

Step-by-step explanation:

i took the test!!!!!

Answer: Yes. There's a proportional relationship

Step-by-step explanation:

We are told that Anthony and Miguel go to the store to purchase some new DVDs and that an advertisement in the window catches their attention as they saw that:

3 DVDs cost $22,50. This means the price of one will be:

= $22.50 / 3

= $7.50

5 DVDs cost $37.50. This means that the price for one will be:

= $37.50 / 5

= $7.50

Since the price of a DVD both cost $7.50, it means that the information on the sign represent a proportional relationship.

Answer:

It is false

Step-by-step explanation:

It's false since M' should be (2,5)

(6,3) is point M reflected about the axis or line: x = 4.

Answer:

The second flare travels higher, 256 feet, and remains in the air longer, 8 seconds, than the first flare

Step-by-step explanation:

The given parameters are;

The height of the first flare = 196 feet

The duration the first flare spends in the air = 7 seconds

The function representing the height of the second flair is f(t) = -16t(t - 8)

Where;

t = The time since the passenger shot the second flare

The time the flair stays i the air is given by the time it takes for the height, f(t),  to be 0 as follows;

f(t) = 0 = -16t(t - 8)

-16t(t - 8) = 0

t = 0, or t = 8

The time the second flare stays in the air = 8 seconds

The maximum height reached by the second flair is given by the finding the maximum point of the curve of the function as follows;

d(f(t))/dt = 0 = d(-16t(t - 8))/dt = -32t + 128 at the maximum point (the coefficient of t² is negative in the quadratic equation)

-32t + 128 = 0

128 = 32t

32t = 128

t = 128/32 = 4

t = 4 at maximum height and f(4) = -16 × 4 × (4 - 8) = 256 feet

The maximum height reached by the second flare f(4) = -16 × 4 × (4 - 8) = 256 feet.

Therefore, the second flare travels higher, 256 feet, and remains in the air longer, 8 seconds, than the first flare, with maximum height of 196 feet, and time in the air of 7 seconds.

Answer:

-100$

Step-by-step explanation:

Adding a negitive number to a positive number is basically subtracting it, and since 600-100 is 500 that means 600 + -100 is also 500.