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Sauron [17]
3 years ago
10

10 point help image i posted need help

Mathematics
1 answer:
lyudmila [28]3 years ago
6 0
The answer should be b
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A driver intends to complete 2 laps on a track that is exactly 1 mile around at an average speed of 60 mph. He gets off to a slo
andrey2020 [161]

Answer:

Goal is not achievable

Step-by-step explanation:

There are Two laps and the total distance here is 2miles. Now, it is said that he hopes to travel at a speed of 60mph, thus the total time that it would take him to complete the 2 miles distance race is 2/60 = 1/30 hours. Thus if he travels at a constant speed of 60mph he would finish the race at 1/30hours.

This means he will take a time of 1/60 hours per lap.

Now, he travels 30mph to complete 1 mile, the time taken for this is 1/30h

We now need to know the speed he travels on the second lap.

Average speed = Total distance/Total time

60mph = 2/( 1/30 + T2)

60 = 2/( (1 + 30T2)/30)

60 = 2 divided by (1 + 30T2)/30

60 = 2 * (30)/1 + 30T2

60( 1 + 30T2) = 60

1 + 30T2 = 1

30T2 = 0

T2 = 0

This means that he cannot achieve his goal again as he had taken the time meant for the whole race in a single lap.

4 0
3 years ago
How to figure this out!
4vir4ik [10]
96  ---> 100%

60 ----> x



x=(60*100%)/96=62.5%
5 0
3 years ago
I need help plssss<br> -3(2x-11)_&gt;8x-9
Ilia_Sergeevich [38]

The Linear inequality holds true for 21 ≥ x;

What is Linear Inequality?

The mathematical expression with unequal sides is known as inequality in mathematics. Inequality is referred to in mathematics when a relationship results in a non-equal comparison between two expressions or two numbers. In this instance, any of the inequality symbols, such as greater than symbol (>), less than symbol (), greater than or equal to a symbol (), less than or equal to a symbol (), or not equal to a symbol (), is used in place of the equal sign "=" in the expression. Polynomial inequality, rational inequality, and absolute value inequality are the various types of inequalities that can exist in mathematics. The symbols "" and ">" signify tight inequalities, while "" and "" signify slack inequalities.

In the given question, the given inequality given is:

-3(2x-11) ≥ 8x-9;

Solving the Inequality:

⇒-6x + 33 ≥ 8x - 9;

⇒33 + 9 ≥ 8x - 6x;

⇒ 42 ≥ 2x;

⇒ 21 ≥ x;

Hence,

The Linear inequality holds true for 21 ≥ x;

To learn more about Linear Inequality, visit:

brainly.com/question/24372553

#SPJ1

4 0
1 year ago
Write the fraction as a percent. Round to the nearest tenth of a percent if necessary. 49/100
dmitriy555 [2]
49 ÷ 100

= 0.49

0.49 x 100 = 49%
7 0
3 years ago
Hey i can give u more points if u help me...
qwelly [4]

Answer:

3x + 8x + 70 = 180

x= 10

Step-by-step explanation:

2b. ×x = 20

2c. 50

3. 2x + (5x -22)= 90

x= 16

3b. c. 58

3 0
2 years ago
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