All categories

3 years ago

Joseph drove for 3 hours at the speed of 40 km/h (kilometers

Mathematics

1 answer:

bezimeni [28]3 years ago

7 0

Answer:

250 km.

Step-by-step explanation:

Alright, so for this problem we can split it into two parts. Since distance = speed*time, the first 3 hours give us 3*40 or 120 km, and the last 2 hours give us 2*65, or 130 km. Adding these together, we get a final distance of 250 km.

You might be interested in

Express the product of 2.03 and 24 to the correct number of significant digits

pav-90 [236]

2.03 *24 = 48.72................

6 0

3 years ago

Read 2 more answers

Using the formula r=d/t where d is the distance in miles, r is the rate and t is the time in hours at which rate must you travel

valentina_108 [34]

$r = \frac{337.5}{4.5} \\ r = 75$
the answer is c-75mph

6 0

3 years ago

Read 2 more answers

Suppose you have 62 feet of fencing to go around a rectangular flower garden. You want

koban [17]

Answer:

Answer is 9 feet = 9 fe 2t

w= 9fe 2t

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

The teacher asked 4 students to measure 4 different objects. The table shown represents their measurements. Which student had th

Maru [420]

Student 4 has the largest percent error.

Step-by-step explanation:

The percent error of a measurement is given by

$p=\frac{|x-x_{true}|}{x_{true}}\cdot 100$

where

x is the value of the measurement

$x_{true}$ is the actual value

For student 1:

$x=49\\x_{true}=50$

Percent error:

$p=\frac{|49-50|}{50}\cdot 100=0.02\cdot 100=2\%$

For student 2:

$x=25.5\\x_{true}=25$

Percent error:

$p=\frac{|25.5-25|}{25.5}\cdot 100=0.0196\cdot 100 = 1.96\%$

For student 3:

$x=7.5\\x_{true}=8$

Percent error:

$p=\frac{|7.5-8|}{8}\cdot 100=0.0625\cdot 100 = 6.25\%$

For student 4:

$x=2.1\\x_{true}=1.6$

Percent error:

$p=\frac{|2.1-1.6|}{1.6}\cdot 100=0.3125\cdot 100 = 31.25\%$

So, student 4 has the largest percent error.

Learn more about errors:

brainly.com/question/2764830

#LearnwithBrainly

4 0

4 years ago

Set up an equation to show (×+2)×5=y

Masteriza [31]

5x+10 = y

Subtract 10 from both sides.

5x = y - 10

Divide both sides by 5.

x = 1/5y - 2

Plugin 1/5y - 2 for the y.
5(1/5y - 2)
1 - 10 + 10 = y

1 = y

Your Answer(s)
y = 1
x = 1/5y - 2

4 0

3 years ago