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bixtya [17]
3 years ago
13

What is 5/4= x/12 solve for proportion?

Mathematics
2 answers:
worty [1.4K]3 years ago
6 0
\dfrac{5}{4} =  \dfrac{x}{12}  \\ \\4*x=5*12 \\ \\4x=60 \ \ \ /:4 \\ \\x=60:4 \\ \\x=15
Diano4ka-milaya [45]3 years ago
5 0
\frac{5}{4}=\frac{x}{12}\ \ \ \ \ |cross\ multiply\\\\4\cdot x=5\cdot12\\\\4x=60\ \ \ \ \ |divide\ both\ sides\ by\ 4\\\\\boxed{x=15}
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Nicole has $9 to spend on cards. She finds friends with the same amount of money to split the cost of a set. One set costs $27.
azamat
Each friend gets three cards.
7 0
3 years ago
A rectangle is 18 inches long and 9 inches wide. Find it’s area.
galina1969 [7]

Answer:

162 square inch

Step-by-step explanation:

Area = Length * Width

Area = 18*9=162

4 0
3 years ago
Expand the expression −11(3c−2d)<br> using the Distributive Property.
Sladkaya [172]

Answer:

-33c+22d

Step-by-step explanation:

=(−11)(3c+−2d)

=(−11)(3c)+(−11)(−2d)

5 0
3 years ago
A multiple-choice test contains 10 questions. There are four possible answers for each question. a) In how many ways can a stude
AnnZ [28]

Answer :

<h3>4^{10} <u> =1048576 ways </u> a student can answer the questions on the test if the student answers every question.</h3>

Step-by-step explanation:

Given that a multiple-choice test contains 10 questions and there are 4 possible answers for each question.

∴ Answers=4 options for each question.

<h3>To find how many ways  a student can answer the given questions on the test if the student answers every question :</h3>

Solving this by product rule

Product rule :

<u>If one event can occur in m ways and a second event occur in n ways, the number of ways of two events can occur in sequence is then m.n</u>

From the given the event of choosing the answer of each question having 4 options is given by

The 1st event of picking the answer of the 1st question=4 ,

2nd event of picking the answer of the 2nd question=4 ,

3rd event of picking the answer of the 3rd question=4

,....,

10th event of picking the answer of the 10th question=4.

It can be written as  by using the product rule

=4.4.4.4.4.4.4.4.4.4

=4^{10}

=1048576

<h3>∴ there are 1048576 ways a student can answer the questions on the test if the student answers every question.</h3>
3 0
3 years ago
A football stadium sells regular and box seating. There are twelve times as many
Vera_Pavlovna [14]

Answer:

There are 801 box seats and 9612 regular seats.

explanation:

Let the number of box seats be x,

Then the regular seats is 12x

The sum of seats equals to 10,413

<u>Solve:</u>

12x + x ➙ 10,413

13x ➙ 10413

x ➙ 801

There are 801 box seats.

<u>Find for regular seats:</u>

➙ 12(x)

➙ 12(801)

➙ 9612

There are 9612 regular seats.

6 0
2 years ago
Read 2 more answers
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