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deff fn [24]
3 years ago
15

PLS HELP / EXPLAIN !!!!

Mathematics
1 answer:
Scorpion4ik [409]3 years ago
5 0
Area of a triangle = \frac{1}{2} · base x height
                     180 = \frac{1}{2} · base x 40
                     180 = 20 · base
                        9  = base

Pythagorean Theorem:
base² + height² = hypotenuse²
  9²     +    40²    = hypotenuse²
 81     +   1600   = hypotenuse²
      1681            = hypotenuse²
     √1681           = √hypotenuse²
         41            = hypotenuse

Answer: the length of the hypotenuse is 41 m
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Children's tickets to a local play cost $\$1.50$ less than adult tickets. At one performance 325 children tickets and 175 adult
svetoff [14.1K]

Answer:

  $8.00

Step-by-step explanation:

The problem statement gives two relations between the prices of two kinds of tickets. These can be used to write a system of equations for the ticket prices.

__

<h3>setup</h3>

Let 'a' and 'c' represent the prices of adult and children's tickets, respectively. The given relations can be expressed as ...

  a - c = 1.50 . . . . . . . adult tickets are $1.50 more

  175a +325c = 3512.5 . . . . . total revenue from ticket sales.

__

<h3>solution</h3>

We are only interested in the price of an adult ticket, so we can eliminate c to give one equation we can solve for 'a'. Using the first equation, an expression for c is ...

  c = a -1.50

Substituting that into the second equation, we have ...

  175a +325(a -1.50) = 3512.50

  500a -487.50 = 3512.50 . . . . . . simplify

  500a = 4000 . . . . . . add 487.50

  a = 8 . . . . . . . . . divide by 500

An adult ticket costs $8.

5 0
1 year ago
Please please please help I really need help I will give you 10 points!
Zigmanuir [339]

5.057 because 3.89 times 1.3 = 5.057

4 0
3 years ago
Which represent the solutions
givi [52]
That looks hella hard
8 0
3 years ago
3.90 is equivalent to how many tenths?
dlinn [17]

Answer: 39 tenths

Divide 39÷10 and get 3.9

4 0
3 years ago
You want to divide a square piece of paper into two equivalent triangle if the square measures 20m in each side what will the th
Zolol [24]
20 √2

It would be a 45 45 90 triangle. So both sides are X (20) and the missing side is X √2 (20 √2).
3 0
3 years ago
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