1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MaRussiya [10]
3 years ago
10

Jamal drives 3 times the hours that Danielle does. Jamal and Danielle drive for a total of 8 hours. How long did each person dri

ve?
Mathematics
1 answer:
Lana71 [14]3 years ago
3 0

Answer: Danielle drive for 2 hours

Jamal drives for 2 × 3 = 6 hours

Step-by-step explanation:

Let the number of hours that Danielle used in driving to be represented by x.

Since Jamal drives 3 times the hours that Danielle does. This will be:

= 3 × x = 3x

Since Jamal and Danielle drive for a total of 8 hours. This can be formed into a equation as:

x + 3x = 8

4x = 8

x = 8/4

x = 2

Danielle drive for 2 hours

Jamal drives for 2 × 3 = 6 hours

You might be interested in
The population mean and standard deviation are given below. Find the required probability and determine whether the given sample
USPshnik [31]

Answer: Not unusual.

Step-by-step explanation:

We know that the  z-scores lower than -1.96 or higher than 1.96 are considered as unusual.

Given : Sample size : n= 65

Sample mean = \mu= 212

Standard deviation : \sigma=5.8

Formula for z-score : z=\dfrac{x-\mu}{\sigma}

At x= 213

z=\dfrac{213-212}{5.8}=0.172413793103\approx0.17

Since , -1.96< 0.17 <1.96

It means the probability of a sample mean being greater than 213 is not unusual.

7 0
3 years ago
What is 3.142 rounded to the nearest hundredth?
stiks02 [169]

Answer:

3.140

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Seth's family plans to drive 220 220 miles to their vacation spot. They would like to complete the drive in 4 4 hours. Find the
balu736 [363]

Answer: 55 miles per hour

Step-by-step explanation:

Here is the complete question:

Seth's family plans to drive 220 miles to their vacation spot. They would like to complete the drive in 4 hours.

Find the average speed in miles per hour needed to make the trip in the desired.

From the question, Seth's family plans to drive 220 miles to their vacation spot and they would like to complete the drive in 4 hours.

Average speed is calculated as distance travelled divided by the time taken. This will be:

Speed = Distance/Time

Average speed = 220/4

Average speed = 55 miles per hour

4 0
3 years ago
What is the value of log2 18 rounded to the nearest hundredth?​
ZanzabumX [31]

Answer: 4,170

Step-by-step explanation:

\displaystyle\  \Large \boldsymbol{} log_2 18=log_2 \ 2+log_2 \ 9=1+3,16\underline99 \approax \approx4,170

6 0
3 years ago
Which set of side lengths forms a right triangle 2,3,13 4,6,10 9,12,18 15,36,39
malfutka [58]

Answer:

15,36,39

Step-by-step explanation:

primitive pythag: 5, 12, 13 *3

6 0
3 years ago
Other questions:
  • Owen has 36 pencils,? What are two ways Owen can group his pencils?
    9·2 answers
  • Solve q - 6 = the square root of 27 - 2q
    10·2 answers
  • which equation has an a-value of –2, a b-value of 1, and a c-value of 3? a. 0 = –2x2 x 3 b. 0 = 2x2 x 3 c. 0 = –2x2 3 d. 0 = 2x2
    12·2 answers
  • In a school, two-fifths of the pupils are girls. how many pupils are there if 96 are boys
    8·1 answer
  • How do you find the distance from a point on a graph to another point, when it is not a straight line?
    5·1 answer
  • What is the opposite of the opposite of -1.4
    9·2 answers
  • Exponents how do you do them
    12·2 answers
  • What is 3x^3 - 11x^2 - 26x + 30 divided by x-5?
    15·2 answers
  • Florist ran 1.2 miles and walked 4.8 laps around the path at the park for a total distance of 3.6 miles. which shows the correct
    9·1 answer
  • Need answer ASAP
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!