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
MrMuchimi
3 years ago
7

One morning, Justin drove 5 hours before stopping to eat lunch at chick-fil-A. After lunch, he increased his speedy by 10 mph. I

f he completed 310-mile trip in 9 hours of driving time, how fast did he drive in the morning?
Mathematics
1 answer:
LuckyWell [14K]3 years ago
7 0

Answer:

30 mph

Step-by-step explanation:

Let the morning speed be represented by s.

Then the total distance drivern is 310 mi and this is equal to

5s + 4(s + 10):

5s + 4s + 40 = 310, or

    9s             = 270

Solving for s, we get s = 270/9 = 30

Then s + 10 = 40

He drove 30 mph in the morning and 40 mph in the afternoon.

Check:  (30 mph)(5 hrs) + (40 mph)(4 hrs) =  310 miles.  CORRECT

You might be interested in
Express 72% as a decimal and as a fraction in simplest form
Greeley [361]
Decimal: 0.72
Fraction: 18/25
8 0
3 years ago
Read 2 more answers
You sell 3 hamburgers at $2.10 each plus 0.38 tax. A customer gives you a $10.00 bill. How much change does he get?
azamat
The customer's change would be 3.32
7 0
3 years ago
Read 2 more answers
Which answer describes the transformation of f(x)=x^2−1 to g(x)=(x−1)^2−1 ?
Vinil7 [7]
Answer is 

<span>2.) a horizontal translation 1 unit to the right

hope it helps</span>
5 0
3 years ago
Read 2 more answers
The table represents what type of function
Luba_88 [7]

Answer

The function is x3

3 0
3 years ago
Read 2 more answers
Please help!!<br> If N is parallel to M, find the value of x and the value of z.
Butoxors [25]
Looking at the figure, we can see that both triangles are right triangles. Therefore, we can apply pythagorean theorems. A right triangle contains a hypotenuse, which is the longest side. In the figure, that would be sides with length 4 and 12. The equation for this is:

c = √(^2 + b^2) , where c is the hypotenuse and a and b are the other shorter sides

To determine z:
4 = √(z^2 + 3^2)
z = 2.65

To determine x:
12 = √(x^2 + 6^2)
x = 10.39
7 0
4 years ago
Read 2 more answers
Other questions:
  • 42 = 4n -7(n-9) solve it
    13·2 answers
  • This cake was sliced diagonally.What shape will the cross-section make?
    15·2 answers
  • during one week the stock market did the following. Monday 18 points, Tuesday rose 31 points , Wednesday dropped 5 points, Thurs
    15·1 answer
  • What are the countries in the triple alliance?
    6·1 answer
  • Cylinders A and B are similar solids. The base of cylinder A has a circumference of 4π units. The base of cylinder B has an area
    8·2 answers
  • Solve this inequality: 3p - 6 &gt; 21.<br> A.p&gt;-5<br> B.p&gt; 5<br> C.p&gt;9<br> D.p&gt;-9
    12·1 answer
  • The average wage for an electrician in CA is $25.47/hour. That is 11% above the national average. What is the national average?​
    6·1 answer
  • How do you solve for 4-9i/-6i
    10·1 answer
  • Luigi has a piece of cloth that is 42 inches long. He wants to divide it into 3 equal pieces. What is the length of each piece?​
    11·1 answer
  • How do I do 6, 7, 8, 9 and 10?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!