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
34kurt
3 years ago
5

What value of x makes this proportion true?

Mathematics
2 answers:
Hatshy [7]3 years ago
8 0
3\x=15\40
3(40)=x(15)
120=15x divide both sides by 15
x=8
mihalych1998 [28]3 years ago
4 0
15/3 = 5
40/5 = 8
x = 8 

You might be interested in
I need help with 6-9 it’s algebra :)
Fiesta28 [93]
6
Answer: The worm slithers 48 inches in an hour. The snail slithers 52 inches in an hour.
If we start by making both the races into equations we get 5w+4s=448 inch and 2w+3s=252 inch. If we then add both the equations together we get 7w+7s=700 inch. Then we divide it all to get 1w+1s=100 inch. Then we can subtract the second race from the first to get 3w+1s=196 inch. We now know that 2w=96 inch, and can therefor divide whit 2 to find out w=48. We can then figure out how fast the snail is moving by multiplying 48 whit w and dividing the answer by s.

7
A 3 scoops $1.28 2 scoops $.87 1.28-.87= 41 .87-.41-.41= 06. A cone costs $.06 and one scoop ice cream costs $.41
B. .06+.41•4=$1.70

8
A. Delivery is $20. One cord is $120.
B. 1 1/2 cord costs $200. ($180 for the cords and $20 for the delivery)

9
Can’t see full question.
5 0
3 years ago
The question is in the picture. (Alegbra 1)
morpeh [17]

Answer:

Step-by-step explanation:

4/5a*3/2a^2

4*3/5a*2a^2

12/10a^3

6/5a^3

therefore ur answer is 6/5a^3

6 0
3 years ago
Read 2 more answers
WHATS THE PERIMITER PLS HELP ME
mihalych1998 [28]
I believe the answer is c
4 0
3 years ago
simplify (x − 2)(x + 9) using the table method, and identify the resulting expression in standard form.
NeX [460]

Answer:

this should be right if not comment and I'll relook it.

FOIL Method.

You will get the same answer x^2+ 7x- 18

5 0
4 years ago
Read 2 more answers
What additional doubles fact can help you find 4+3? Explain how you know
Anna35 [415]

Answer:

Either 4+4=8 then take 1 away to get 7 or 3+3=6 then add 1 to get 7.

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Find the hypotenuse of each isosceles right triangle when the legs are of the given measure.
    8·1 answer
  • What does isolate mean in math
    13·2 answers
  • Emily has $15 to buy apples. Apples
    12·1 answer
  • Kirsten is making lanyards for a convention. She needs to make 1,000 lanyards and knows that 1 lanyards uses 1.75 feet of cord.
    13·2 answers
  • How to find the area of a square with radius 17 square root 2
    6·1 answer
  • Suma dintre un număr şi 15 este 28. Care este numărul considerat?​
    9·1 answer
  • Helppppppp me plzzzzzzzzzzzzzzzzzzz
    15·2 answers
  • A large soda bottle cap has a radius of 1+2 /2 centimeters. What is the area of the bottle cap? (R the area of a circle is no wh
    8·1 answer
  • Help help help help math math
    9·1 answer
  • Which equation has no real solutions
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!