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3 years ago

1-?

Mathematics

2 answers:

eduard3 years ago

6 0

Answer:
1-6
4-24
7-42
10-60
13-78

Irina-Kira [14]3 years ago

3 0

Answer:

1-6

4-24

7-42

10-60

13-78

Step-by-step explanation:

hope this helps

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1) A cyclist travels a distance of 90 miles in 5 hours. What

Nostrana [21]

Answer:

Step-by-step explanation: <u>Speed</u> is distance an object travelled per unit time.

It is represented by letter v and can assume various units.

1) $v=\frac{distance}{time}=\frac{d}{t}$

$v=\frac{90}{5}$

v = 18 miles per hour

Her average speed is 18 mph.

2) Rearraging formula for distance:

d = v.t

d = 70 * 4

d = 280 miles

You would travel 280 miles.

3) $v=\frac{d}{t}$

$v=\frac{315}{6}$

v = 52.5 mph

My average speed is 52.5 mph.

4) Rearranging formula to determine time:

$t=\frac{d}{v}$

$t=\frac{210}{90}$

t = 2.34 hours

It will take 2 hours and half to arrive in Leeds. So, we will be expected to arrive at 12:04.

5) The unit change but the way of calculating time is the same.

$t=\frac{2000}{4}$

t = 500 s

or t = 8.34 minutes

It will take, for an athlete to run 2000m, 8.34 minutes.

6) a) All units must match, so for a speed in mph:

45 minutes is 0.75 hours. Total time is 8.75 hours.

$v=\frac{420}{8.75}$

v = 560 mph

The average speed is 560 mph.

b) $t=\frac{d}{v}$

$t=\frac{420}{63}$

t = 6.67 hours

Sam will take 6.67 hours to covered the distance.

4 0

2 years ago

Find the range of the function for the given domain.

Mice21 [21]

Answer: {5, -7, -19, -27, -35}

Step-by-step explanation:

In order solve this, we need to plug in the values of x into the table.

For spaces on the left of the equals sign, you need to write each x from the domain. You can then match that x-value with its function value by putting that on the right side.

For each equation, we are simply plugging a number from the domain into the function and replacing the x-value:

$f(-1) = -4(-1) + 1 = 5\\f(2) = -4(2) + 1 = -7\\f(5) = -4(5) + 1 = -19\\f(7) = -4(7) + 1 = -27\\f(9) = -4(9) + 1 = -35$

I hope this helps. If you need any extra explanation on how the functions are set up, please let me know.

5 0

1 year ago

To control an infection, a doctor recommends that a patient who weighs 92 pounds be given 320 milligrams of antibiotic. If the a

stich3 [128]

Answer:

480 milligrams.

Step-by-step explanation:

Divide 320 by 92, you get 3.47826087, multiply that by 138 to get your answer (480).

7 0

3 years ago

Read 2 more answers

Pls help me solve for x in 2/3=x/4+x/3

Firlakuza [10]

Answer:

x=8/7

Step-by-step explanation:

2/3=x/4+x/3

3x/12+4x/12=8/12

7x/12=8/12

x=(8/12)/(7/12)

x=(8/12)(12/7)

x=8/7

7 0

3 years ago

Explain the steps needed to solve the inequality. <br><br> -3x + 4 > 25

r-ruslan [8.4K]

Step-by-step explanation:

-3x + 4 > 25

-3x > 21 (subtract 4 on both sides)

x < -7. (divide -3 on both sides, flip the sign)

6 0

2 years ago