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
Thepotemich [5.8K]
3 years ago
14

Select the correct answer.

Mathematics
1 answer:
schepotkina [342]3 years ago
3 0

Answer:

He drove the rest of the trip at 30 miles per hour

Step-by-step explanation:

The rule of the distance is D = v × t, where

  • v is the speed
  • t is the time

∵ It is 170 miles from Bruce's house to the city where his brother lives

∴ D = 170 miles

∵ He drove for 2 hours at 55 miles per  hour

∴ t1 = 2 hours and v1 = 55 miles/hour

→ By using the rule above find the distance of this part of his trip

∴ D1 = 55 × 2 = 110 miles

∵ The rest of the trip took 2 hours

∴ t2 = 2 hours

∵ D = D1 + D2

→ Substitute the values of D and D1 to find D2

∴ 170 = 110 + D2

→ Subtract 110 from both sides to find D2

∴ 60 = D2

∴ D2 = 170 - 110 = 60 miles

∵ The rest of the trip is 60 miles

∵ It took 2 hours

∵ D2 = v2 × t2

∴ 60 = v2 × 2

→ Divide both sides by 2

∴ 30 = v2

∴ v2 = 30 miles/hour

∴ He drove the rest of the trip at 30 miles per hour

You might be interested in
In the figure above, PQRS is a circle. If PQT and SRT<br>are straight lines, find the value of x.
Elena L [17]

Given:

PQRS is a circle, PQT and SRT  are straight lines.

To find:

The value of x.

Solution:

Since PQRS is a circle, PQT and SRT  are straight lines, therefore, PQRS isa cyclic quadrilateral.

We know that, sum of opposite angles of a cyclic quadrilateral is 180 degrees.

m\angle SPQ+m\angle QRS=180^\circ

81^\circ+m\angle QRS=180^\circ

m\angle QRS=180^\circ-81^\circ

m\angle QRS=99^\circ

Now, SRT  is a straight line.

m\angle QRT+m\angle QRS=180^\circ             (Linear pair)

m\angle QRT+99^\circ=180^\circ

m\angle QRT=180^\circ-99^\circ

m\angle QRT=81^\circ               ...(i)

According to the Exterior angle theorem, in a triangle the measure of an exterior angle is equal the sum of the opposite interior angles.

Using exterior angle theorem in triangle QRT, we get

m\angle PQR=m\angle QRT+m\angle QTR

x=81^\circ+22^\circ

x=103^\circ

Therefore, the value of x is 103 degrees.

4 0
3 years ago
How does a tree have self similarity?
ankoles [38]
Well trees are living things like humans they are very helpful like people they have arms like people and the leaves are kinda like hair
4 0
3 years ago
A.Pictograph
guajiro [1.7K]

..Answer:

Step-by-step explanation:

...

3 0
3 years ago
On a 66-sided number cube, which is more likely: rolling an odd number or rolling an even number?
statuscvo [17]
Hello, how have you been?

I believe that the answer to this question is exactly %55. There is 33 even numbers, and 33 odd numbers :)

Hope i helped :)
5 0
3 years ago
Read 2 more answers
Pls help .,)
Nat2105 [25]

C.

because a, b, and d aren't porportional

but c x is divided by 2

6 0
3 years ago
Read 2 more answers
Other questions:
  • To make a dark orange color, Ron mixes 3 ounces of red paint with 2 ounces of yellow paint. Write the ratio of red paint with ye
    7·2 answers
  • The second of two numbers is 5 more than twice the first. their sum is 80. find the numbers
    6·1 answer
  • A bag has 7 red marbles, 8 blue marbles, and 5 purple marbles. Rachel draws a marble from the bag without looking.
    8·2 answers
  • On his 8 tests, Hong earned a total of 568 points. What<br> mean number of points earned per test?
    11·2 answers
  • A new sweater costs $15.99. If the sweater is on sale for 1/4 off
    11·2 answers
  • Is 512 the correct answer?
    7·1 answer
  • Larry is given the expression 4058 divided by 54 to evaluate. What is the greatest place value in the quotient? Find the quotien
    9·1 answer
  • What fraction is less than 1/2
    5·2 answers
  • HELP ME PLEASE ILL GIVE BRAINLIST POINT!!!
    11·2 answers
  • Tawni watched 3/4 of a movie in 1 1/2 hours. Which is the length of the movie?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!