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2 years ago

A ball club makes $450,000 when it does not rain. It also loses $250,000 when there is a rain out. If the

Mathematics

1 answer:

Hunter-Best [27]2 years ago

5 0

Answer:

E = 450000 x (1 - 0.32) + (-250000) x 0.32 = 226000

Hope this helps!

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Triangle PQR lies in the xy-plane, and the coordinates of vertex Q are (2, –3). Triangle PQR is rotated 180° clockwise about the

trasher [3.6K]

Answer:

(2,3)

Step-by-step explanation:

We are given that triangle PQR lies in the xy-plane, and coordinates of Q are (2,-3).

Triangle PQR is rotated 180 degrees clockwise about the origin and then reflected across the y-axis to produce triangle P'Q'R',

We have to find the coordinates of Q'.

The coordinates of Q(2,-3).

180 degree clockwise rotation about the origin then transformation rule

$(x,y)\rightarrow (-x,-y)$

The coordinates (2,-3) change into (-2,3) after 180 degree clockwise rotation about origin.

Reflect across y- axis the transformation rule

$(x,y)\rightarrow (-x,y)$

Therefore, when reflect across y- axis then the coordinates (-2,3) change into (2,3).

Hence, the coordinates of Q(2,3).

5 0

3 years ago

Marcie bought a total of 20 used books and cds during a yard sale for a total of 54.50$. of books cost 1.50$ each and cds 5$ eac

melomori [17]

Let numbers of books be 'b' and numbers of CDs be 'c'

We can set up two equations:
Equation [1] ⇒ $b+c=20$
Equation [2] ⇒ $1.50b+5c=54.50$

We are solving for the number of books and the number of CDs bought

When we have two equations in terms of two different variables; $b$ and $c$ , that we need to solve, then this becomes a simultaneous equation problem.

First, rearrange Equation [1] to make either $b$ or $c$ the subject:
$b+c=20$
$b=20-c$

Then we substitute $b=20-c$ into Equation [2]
$1.50b+5c=54.50$
$1.50(20-c)+5c=54.50$
$30-1.50c+5c=54.50$
$5c-1.5c=54.50-30$
$3.5c=24.50$
$c=7$

Now we know the value of $c$ which is $c=7$ , substitute this value into $b=20-c$ we have $b=20-7=13$

Answer:
Numbers of books = 13
Numbers of CDs = 7

5 0

3 years ago

In what ways are inequalities like equations ?

solmaris [256]

Answer:

Step-by-step explanation:

Inequalities and equations are alike in that they both involve two sides of a sign (whether it is an equal sign or an inequality sign) being compared. For example, both y = x + 2 and y > x + 2 are just ways of comparing the values of x and y.

7 0

2 years ago

PLEASE ANSWER! I NEED THE ANSWER IN THE NEXT HOUR! The table shows the number of teams remaining in each round of a tournament.

BaLLatris [955]

Answer:

Step-by-step explanation:

The equation would be 32 times (1/2)^x.

Linear equations won't have exponents, because this is an exponential equation.

5 0

2 years ago

What is the volume of a block of ice measuring 3 meters long, 1.5 meters wide, and 2 meters high?

vekshin1

The volume would be 9meters³

3x1.5x2

8 0

2 years ago

Read 2 more answers