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
Phantasy [73]
3 years ago
9

Can someone help me please?

Mathematics
1 answer:
alexgriva [62]3 years ago
8 0

Option D is the correct answer

You might be interested in
What is x and y math help
Readme [11.4K]
<h3>Answer:</h3>
  • 20 cans of cola
  • 10 cans of root beer
<h3>Step-by-step explanation:</h3>

x and y are whatever you want them to be.

It can be convenient for solving a problem like this to use x and y to represent <em>what the problem is asking for</em>: the number of cans of cola and the number of cans of root beer. It is also convenient (less confusing) to use those variable names in the same order that the nouns of the problem are named:

... x = # of cans of cola

... y = # of cans of root beer

Then the problem statement tells you ...

... x + y = 30 . . . . . . . 30 cans total were bought

... x = 2y . . . . . . . . . . the number of cans of cola is twice the number of cans of root beer

_____

This set of equations is nicely solved by substitution: use the second equation to substitute for x in the first.

... (2y) +y = 30 . . . . . put 2y where x was

... 3y = 30 . . . . . . . . collect terms

... y = 10 . . . . . . . . . divide by 3

... 2y = x = 20

<em>You're not done yet. You need to answer the question the problem asks.</em>

Jared bought 20 cans of cola and 10 cans of root beer.

_____

<em>Comment on x and y</em>

You customarily see x and y as the variables of a problem. Personally, I like to use variables that remind me what they stand for. In this problem, I might use "c" for cans of cola and "r" for cans of root beer. Then when I've found the solution, I know exactly how it relates to what the question is asking.

Always start by writing down what the variables stand for (as we did here). Sometimes, this is called <em>writing a Let statement</em>: <u>Let</u> x = number of colas; <u>let</u> y = number of root beers.

<em>Comment on problems of this type</em>

When a proportional relationship is given between the items in a sum (2 cola cans for every root beer can), it is often convenient to work the problem in terms of groups of items. Here, a group of 3 items can consist of 2 cola cans and 1 root beer can. Then 30 items will be 10 groups, so 10 root beers and 20 colas. The problem is solved even before you can name the variables.

Even when the relationship isn't exactly proportional, you can add or subtract the extras and still work the problem this way. Had we said colas numbered 3 more than twice as many root beers, we could have our groups of 3 total 27 (30 less the 3 extra), giving 9 root beers and 21 colas (3 + 2·9).

8 0
3 years ago
Use long division to find the quotient below.<br> (x2 + 3x - 18) + (x-3)
Vanyuwa [196]

Answer:

6x-21

Step-by-step explanation:

6 0
3 years ago
Help quick! i will give you 20 points. You have 412 pints of ice cream for your birthday party. If you are going to serve 34 pin
coldgirl [10]

Division word problems often ask you to split something evenly. You should solve this problem by dividing the total amount of ice cream by the amount you will serve each guest. After converting to fractions, 4.5 divided by .75. You will have enough to serve six guests, and no ice cream left over.

5 0
3 years ago
Can someone help me with the question in the image. if correct i will mark as brainliest
Alex777 [14]

Answer:

Multiply~the~length~of~the~leg~by~\sqrt{2}~to~arrive~at~the~length of~the~hypotenuse = 6.

Step-by-step explanation:

To~find~the~length~of~the~ hypotenuse,~we~multiply~the~length~of~the~leg by~\sqrt{2}:

3\sqrt{2} *\sqrt{2}=3*2=6

So~your~answer~to~this~question~is~option"b"

Hope~this~helps!

7 0
3 years ago
Positive fractions less than 1,with interval of 1/8 between each pair of fractions
Sati [7]
Yes it is keep up the good work
4 0
3 years ago
Other questions:
  • The legs of a right triangle are 6 units and 7 units. What is the length of the hypotenuse?
    9·1 answer
  • Complete the synthetic division problem below.
    15·1 answer
  • Which one is correct
    6·2 answers
  • Evaluate the expression for the given value of x.<br> 5x + 6 for x = 4
    7·1 answer
  • Pls help meeeeeeee! !
    14·1 answer
  • Write an equation of a line that passes through (-4,2) and is parallel to the line y=1/4x+1
    6·1 answer
  • Please help right now
    7·2 answers
  • Two phone companies one is 11/+.16/ min And another is 20+.11/min How many minutes will make both equal amounts
    13·1 answer
  • 4&lt;-2x+3&lt;9<br> Graph the inequality
    13·1 answer
  • I do not know this answer
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!