All categories

3 years ago

Peter can run 10 kilometers in 2 hours at a steady rate how long will it take him to run 30 kilometers

Mathematics

2 answers:

Pachacha [2.7K]3 years ago

8 0

Answer:

6 hours

Step-by-step explanation:

10/2=5

5 * 6 =30

mezya [45]3 years ago

6 0

Answer:

It will take him 6 Hours

Step-by-step explanation:

10Kilometers=2Hrs

10K*3=2Hrs*6

That's why it's 6 Hrs

You might be interested in

Whats the answer to this? Evaluate 3×6 − 12÷6

Paraphin [41]

Answer:

Step-by-step explanation:

3 times 6 is 18 and 12 divided by 6 is 2

18 - 2 =16

use the acronym PEMDAS

5 0

3 years ago

Solve for x. will mark brainliest

Veronika [31]

Answer: x=90

Step-by-step explanation: 11 x 7.5 =90

8 0

3 years ago

A line, y = mx + b, passes through the point (1, 6) and is parallel to

koban [17]

Answer: b=6

Step-by-step explanation:

6 is in the y intercept place so it equals 6

8 0

3 years ago

Solve the system of equations by substitution. 3/8 x + 1/3 y =17/24 and <br> x + 7y = 8

goblinko [34]

$\left \{ {{ \frac{3}{8}x+ \frac{1}{3}y = \frac{17}{14} } \atop {x+7y=8}} \right.$

To solve this system by substitution, first isolate x in the second equation.

$x+7y=8$
$x+7y-7y=8-7y$
$x=8-7y$

Now, plug this expression ( $8-7y$ ) for x in the top equation to solve for y.

$\frac{3}{8} (8-7y)+ \frac{1}{3} y= \frac{17}{14}$
$3- \frac{21}{8} y+ \frac{1}{3} y= \frac{17}{24}$
$72-63y+8y=17$
$72-55y=17$
$-55y=17-72$
$-55y=-55$
$y=1$

Now that you have y, plug it into the second equation and solve for x.

$x+7y=8$
$x+7(1)=8$
$x+7=8$
$x=1$

Last step is to plug your x- and y-values in to both equations to check your work.

$\frac{3}{8} (1)+ \frac{1}{3} y= \frac{17}{24}$

$\frac{3}{8} * \frac{3}{3} = \frac{9}{24} ; \frac{1}{3} * \frac{8}{8} = \frac{8}{24}$

$\frac{9}{24} + \frac{8}{24} = \frac{17}{24}$ <--True

$1+7(1)=8$
$1+7=8$ <--True

Answer:
$x=1 \\ y=1$

5 0

3 years ago

What is -1 = 5/8b + 3/8

andrew-mc [135]

Answer:

exact form - b = -11/5

decimal form - b = -2.2

Mixed number form - b = -2 1/5

4 0

3 years ago