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denis23 [38]
3 years ago
10

In the following problem, the ratios are directly proportional. Find the missing variable.

Mathematics
1 answer:
KATRIN_1 [288]3 years ago
7 0

Answer:

x1 = 3

Step-by-step explanation:

first set up the proportion (write as fractions):

(y1/x1) = (y2/x2)

then fill in the variables:

4/x1 = 8/6

now cross multiply:

8 • x1 = 6 • 4

simple algebra:

8 • x1 = 24

x1 = 24/8

x1 = 3

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At a carnival, 700 tickets were sold for a total
Diano4ka-milaya [45]

Answer:

The adult tickets are <u>400</u> and the children tickets are <u>300</u>.

Step-by-step explanation:

Given:

At a carnival, 700 tickets were sold for a total  amount of $5500. An adult ticket cost $10   and a children's ticket cost $5.

Now, to find the  number of adult tickets and the number of  children's tickets sold.

<em>Let the number of adult tickets be </em>x.<em />

<em>And let the number of children tickets be </em>y.<em />

So, the total number of tickets sold:

x+y=700\\\\y=700-x\ \ \ ....(1)

Now, the total amount of tickets:

x(10)+y(5)=5500

Substituting the value of y from equation (1):

x(10)+(700-x)(5)=5500\\\\10x+3500-5x=5500\\\\5x+3500=5500

<em>Subtracting both sides by 3500 we get:</em>

<em />5x=2000<em />

<em>Dividing boths sides by 5 we get:</em>

x=400.<u />

<u>The number of adult tickets = 400.</u>

Now, substituting the value of x in equation (1) we get:

y=700-x\\\\y=700-400\\\\y=300.

<u>The number of children tickets = 300.</u>

Therefore, the adult tickets are 400 and the children tickets are 300.

8 0
4 years ago
A pool company needs to make a cover for an in-ground pool. The pool cover is made up of the triangle PQT and the parallelogram
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Answer: 326

Step-by-step explanation:

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3 years ago
Select all input values for which f(x) = 1​
Whitepunk [10]

Good morning ☕️

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Answer:

The answers that apply are A (x=-2) and C (x=1),

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Step-by-step explanation:

Actually , x= -2 apply because

If you look at the graph you will see that f(-2)=1.

See the point with coordinates (-2 , 1).

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