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
kompoz [17]
3 years ago
10

Solve the proportions using cross products. Round to the nearest hundredth is necessary. 21miles/49hours = 15miles h hours

Mathematics
1 answer:
SSSSS [86.1K]3 years ago
8 0

\dfrac{21}{49}=\dfrac{21:7}{49:7}=\dfrac{3}{7}\\\\\dfrac{21}{49}=\dfrac{15}{h}\to\dfrac{3}{7}=\dfrac{15}{h}\qquad\text{cross multiply}\\\\3h=(7)(15)\\\\3h=105\qquad\text{divide both sides by 3}\\\\\boxed{h=35}\\\\Answer:\ 35\ hours

You might be interested in
What does 250 X 5 equal
Natasha_Volkova [10]

Answer:1250

Step-by-step explanation:4x250 equals 1000 then add 250

3 0
2 years ago
Read 2 more answers
Read the problem and examine the diagram. 14 students in Neil's class play basketball.35 % of the students in his class play bas
Nina [5.8K]

The answer is

C.The answer should be 35% of 14

4 0
3 years ago
15 cm = how many inches (Rounded)
laiz [17]
About 6 inches. Originally 5.906 in...
6 0
3 years ago
Read 2 more answers
Points D, E, and Fare midpoints of AABC. Which segment is parallel to AC?
Ksenya-84 [330]
The answer is A) DE. I really don’t know how to explain this. Just remember the definition of parallel lines and you’ll see it.
8 0
3 years ago
The perimeter of a triangle is 65 centimeters. The second side is twice the first and the third side is 3 and 1/2 times the firs
Harlamova29_29 [7]
X=first number
2x= second side
3.5x= third side


X+2x+3.5x=65

6.5 x= 65
Divide both sides by 6.5

X=10. First side
2x= 20. Second side

3.5x= 35 = third side

10, 20, 35

4 0
3 years ago
Other questions:
  • North shore community college reimburses faculty members $.298 cents per mile to go to a workshop. professor wells submitted her
    8·1 answer
  • Identify the domain of the given function f(x)=1/x+1 +5
    12·2 answers
  • Need help with #3.<br>What are the common factors of 20w and 40wz
    11·2 answers
  • PLEASE HELP 100 POINTS!
    5·2 answers
  • Answer:<br> (1 point<br> 22. What is the distance around the edge of an object called?
    5·2 answers
  • Help Me With This Question Please!
    9·1 answer
  • Find the solution of the system of linear equations below<br>y = 5x +1 <br>–5x + y = 1​
    10·1 answer
  • 5×70=5×(_×10)<br>5×70=(5×_)x10<br>5×70=_×10=_​
    9·1 answer
  • 5. A life insurance policy costs $16.00 for every $1,000.00 of insurance. At
    11·1 answer
  • 56 - 8 (1/4+2 / 1-3/5)
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!