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3 years ago

AWNERSSS FOR ALLL PLSSSSSSSS 67 pointssss

Mathematics

2 answers:

melomori [17]3 years ago

5 0

Step-by-step explanation:

4) x=(z-y)/2

8) b=(d)/ac

9) x=(-z+4)/y

10) a=(c-3)b

jok3333 [9.3K]3 years ago

3 0

4. (Z-y)/2 = x
8. D/(ac) = b
9. (4-z)/y = x
10. a = (c-3)b

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The Northwest High School senior class decided to host a raffle to raise money for their senior trip. They charged $2 for each s

prisoha [69]

Let $x$ be the tickets that the adults bought, and $y$ be the tickets that children bought.
From the problem we have the system of linear equations:
$\left \{ {{2x+5y=2686} \atop {y=3x}} \right.$

The first thing we are going to do to solve our system, is replacing equation (2) in equation (1), and then, solve for $x$
$2x+5y=2686$
$2x+5(3x)=2686$
$2x+15x=2686$
$17x=2686$
$x= \frac{2686}{17}$
$x=158$

Now that we have the number of tickets that the adults bought, lets replace that value in equation (2):
$y=3x$
$y=3(158)$
$y=474$

Last but not least, to find the total number of tickets, we are going to add $x$ and $y$ :
$158+474=632$

We can conclude that Northwest High School's senior class sold 632 raffle tickets.

7 0

3 years ago

Read 2 more answers

Can someone help me with question 5-9

Tju [1.3M]

If a circle is equal to 365°, take 365° and multiply is by each percentage:
Potatoes - 365° x .088 = 32.12 = 32°
Green Beans - 365 x .119 = 43.435 = 43°
Corn - 365 x .151 = 55.115 = 55°
Carrots - 365 x .108 = 39.42 = 39°
Broccoli - 365 x .197 = 71.905 = 72°

7 0

4 years ago

ACB=DCE A=63, C=52, and E=5x Help please!

larisa86 [58]

Answer:

the anwer is idcause i didnt workmit ut jus like you

Step-by-step explanation:

5 0

3 years ago

PLEASE HELP

olya-2409 [2.1K]

Answer:

the amount you will get it will be something $286.572 because first multiple 5000 with 2.6% and then multiple by 10 for ten years

3 0

3 years ago

I need help :(( please please ease triangle area ?

kvasek [131]

Answer:

$\frac{25\sqrt{3}}{2}$

Step-by-step explanation:

The area of a triangle is given by $A=\frac{1}{2}bh$ where $b$ is the base of the triangle and $h$ is the height of the triangle. In a right triangle, the two legs will represent the base and height, both interchangeable.

In a 30-60-90 triangle, the sides are in the proportion $x:x\sqrt{3}:2x$ , where $2x$ is the hypotenuse of the triangle and $x$ is the side opposite to the 30 degree angle. Since the hypotenuse of this triangle is given as 10, the leg opposite to the 30 degree angle is equal to $10\div 2=5$ and the leg adjacent to the 30 degree angle is equal to $5\sqrt{3}$ .

Thus, the area of this triangle is equal to:

$A=\frac{1}{2}\cdot 5\cdot 5\sqrt{3}=\boxed{\frac{25\sqrt{3}}{2}}$

4 0

3 years ago