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
Veseljchak [2.6K]
3 years ago
12

Suppose that 15 inches of wire costs 90 cents. At the same rate, how many inches of wire can be bought for 48 cents?

Mathematics
1 answer:
tamaranim1 [39]3 years ago
3 0
This can be solved by making an equivalent ratio.
The original ratio is what we know, 15 inches of wire for 90 cents.
In a ratio of inches of wire:cents, this would be 15:90.

Now for the equivalent ratio.
We don't know the number in the inches place but we do know it for the cents place.
Let's use x to represent inches of wire.
x:48 is our new ratio, and we need to find x.

Since x:48 and 15:90 are equivalent, that means the same thing that was done to 90 to get 48 has to be done to 15 to get the value of x, since the same thing must be applied to both sides.
We can find what 90 was divided by (which is what we'll have to divide 15 by) by dividing 90 by 48.
90 / 48 = 1.875

This means 48 • 1.875 = 90 and x • 1.875 = 15.
Since we don't know x though, we can isolate it by dividing both sides by 1.875.
x • 1.875 = 15
x • 1.875 / 1.875 = x
15 / 1.875 = 8
So x is 8.

Answer:
While you can be 15 inches of wire for 90 cents, you can buy 8 inches of wire for 48 cents at the same rate.
You might be interested in
Factoring-16w²+50wz-21z²  please help me solve
KIM [24]
-16w^2+50wz-21z^2=-(16w^2-50wz+21z^2)=\\\\=-(16w^2-8wz-42wz-21z^2)=\\\\-[8w(2w-z)-21z(2w-z)]=-(2w-z)(8w-21z)
6 0
3 years ago
A $20.00 pair of jeans is discounted 20%. What is the final price of the jeans?
Arturiano [62]

Answer:

The answer is B

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Help Asap will give brainliest if you start answering by 21 minutes
Elza [17]

<u>Answer:</u>

f(x) = (2x + 1)(2x − 1)

Explanation:

As we can see from the above function f(x) = 4x^{2} − 1, we need to find x-intercept, i.e., the value of x where this function's value is zero.

So let us Equate the function with zero

4x^{2} - 1 = 0 => 4x^{2} = 1 => x^{2} = 1/4 => x = \sqrt{1/4}

Hence we get 2 values of x, i.e., +1/2, and -1/2.

So now we need to check out the functions which are zero at this values of x, so let us substitute values of x in each and every option and see the values of functions.

Option A - f(x) = (4x + 1)(4x − 1) = 3, -3

Option B - f(x) = (2x + 1)(2x − 1)  = 0

Option C - f(x) = 4(x2 + 1)  = 5

Option D - f(x) = 2(x2 − 1) = -3/2

Hence answer is Option B

8 0
3 years ago
Lea received a tip of $8 on a restaurant tab of $20. What percent tip did<br> she receive?
Nonamiya [84]

Answer:

40% tip

Step-by-step explanation:

If $20 is 1/5 of $100 and that $8 tip is part of those $20 you just have to multiply by five and thats your answer

8 0
3 years ago
Which equation would give the graph below? (photo)
emmasim [6.3K]

Answer:

C

Step-by-step explanation:

Y= 4^2 - 5 x 4 + 4 = 0

5 0
3 years ago
Other questions:
  • Plz help me thank you 15 points plz help me fast thank you so much plz only if you can understand I really need help
    7·2 answers
  • What is f(5)?
    6·2 answers
  • lory has 56 marbles.She gets 15 marbles for her birthday .lory then gives 22 marbles away .how many marbles does lory have left
    14·1 answer
  • divide. mr. george owns 425 acres of land. if he divides the land into half-acre plots, how many plots will he have? 212 �� 850
    6·2 answers
  • Simplify the expression: 7(9x + 6y)
    5·1 answer
  • Complete the table to investigate dilations of
    11·1 answer
  • Solve for x. (round to the nearest tenth)
    9·2 answers
  • Please I need help 15 points
    14·2 answers
  • Which of the following package deals is a better buy according to unit price?
    12·2 answers
  • Gabby and Brea went shopping at Ciara's Clothing Goods. Gabby bought 2 shirts and 1 pair of shoes, and she spent $32. Brea bough
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!