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
borishaifa [10]
3 years ago
7

3. James drives for 5 hours at a certain speed and then for 4 hours at a speed 6 km/h greater than his original speed. If he dri

ves 294 km altogether, what was his first speed?
Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
4 0

Answer:30km/hr

Step-by-step explanation:

Total distance=294km

Speed=s

Distance=d

Time=t

First drive:

t=5

d=s x t

d=s x 5

d=5s

Second drive:

t=4

Speed is 6km/h greater than the first speed

The new speed= s+6

d=4(s+6)

Total distance=294

5s + 4(s + 6)=294

5s + 4s + 24=294

Collect like terms

5s + 4s=294 - 24

9s=270

Divide both sides by 9

9s/9=270/9

s=30

First speed=30km/hr

You might be interested in
What type of number can be written as a fraction p/q where p and q are integers and q is not equal to 0
Ede4ka [16]
That is rational number.
3 0
3 years ago
Read 2 more answers
Can someone solve #7 please
umka2103 [35]

Answer: Triangles B and C

Step-by-step explanation: Because one side is divisible by 1,2,5,10 and the other side is divible by 1,3,9, etc

8 0
3 years ago
Find the greatest common factor of 28 and 42.
erastova [34]

Answer: By using EDL(Euclid's Division Lemma), the answer we get is 14

so,

    42 = 28(1) + 14

    28 = 14(2) + 0

therefore, HCF(or greatest common factor) = 14

8 0
3 years ago
Select the graph that represents the given set. (Click on the graph until the correct one is showing.) A = {(1, 2), (2, 3), (3,
fenix001 [56]

Answer:

the 4th graph

Step-by-step explanation:

the x-axis is first (the horizontal line), then the y-axis is next ( vertical line). you have to with the pairs that you are given. {(1, 2)...} you find the 1 on the x-axis then move up 2 space. that will be your first dot. then you do the same with the rest of them

8 0
3 years ago
Find an explicit formula for the following sequence, an, which starts with a1=7. 7,−14,28,−56,112,…
Digiron [165]

Answer:

simply multiply each number by -2

Step-by-step explanation:

7 * -2 = -14 -14 * -2

brainliest answer plz!

6 0
3 years ago
Read 2 more answers
Other questions:
  • Suppose someone gives you 15 to 4 odds that you can't roll 2 even numbers with the roll of 2 fair dice. This means you win $15 i
    15·2 answers
  • What is 4 divided 643???
    11·1 answer
  • Willing to Mark brainiest!
    15·2 answers
  • The range of F(x)=6*3x is all positive real numbers, is this true or false?
    15·1 answer
  • At a concession​ stand, three hot dogs and 4 hamburgers cost ​$11.50​; 4 hot dogs and three hamburgers cost $11.25 Find the cost
    6·1 answer
  • What is 7- (7r+7)= 6r+7
    10·1 answer
  • What is -13 + x = -21 ?
    12·2 answers
  • Find the distance that (5, 1) is from the origin. Round to three decimal places.
    13·1 answer
  • This table shows the size in acres of four parks.
    7·1 answer
  • Use square roots to solve the quadratic equations (more specifically 50=2x^2+16x+32
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!