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3 years ago

Can someone help me please ?

Mathematics

1 answer:

pantera1 [17]3 years ago

7 0

Answer:

-5/-3

Step-by-step explanation:

first y intercept=

-5/-3

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At a museum, adult admission is $ 13.00 and children admission is $ 7.50. During one day, a total of 1900 adult and children a

bagirrra123 [75]

Answer:

1400 adult admissions.

Step-by-step explanation:

At a museum, adult admission is $13.00

Children admission is $7.50

During one day, a total of 1900 adult and children admissions were collected

And $21,950 in admission fees was collected.

Let adult admissions during that day be x,

And children admissions be y

The simultaneous equation formed is;

x + y = 1900 ... (i)

$13x + $7.50y = $21,950 ... (ii)

Multiplying (i) by 13 and (ii) by 1 we get;

13x + 13y = 24,700 ... (i)

13x + 7.50y = 21,950 ... (ii)

(i) - (ii) we get;

5.5y = 2750

y = 500

So there were 500 children admissions and 1900 - 500 = 1400 adult admissions.

8 0

3 years ago

What is the radius of a circle whose equation is x2 y2 – 10x 6y 18 = 0?

frutty [35]

Given the equation of a circle"x^2 + y^2 - 4x +6y -36 = 0We will use completing the square method to rewrite the equation into the form:(x-a)^2 + (y-b)^2 = r^2 where (a,b) is the center and r is the radius.Let us rewrite the terms.==> x^2 - 4x + y^2 + 6y = 36Now we will complete the square for both x^2 ands y^2.We will add [( coefficient of x)/2]^2 and [(coefficients of y)/2]^2 to both sides.Then we will add :(4/2)^2 = 2^2 = 4(6/2)^2 = 3^2 = 9Then we will add 4 and 9 to both sides.==> x^2 - 4x +4 + y^2 + 6y + 9 = 36 + 4 + 9==> (x-2)^2 + (y+3)^2 = 49==> (x-2)^2 + (y+3)^2 = 7^2Now we will compare the equation withe the standard form of a circle.Then we conclude that:The center of the circle is: ( 2, -3) and the radius is 7.

6 0

3 years ago

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(a) Complete the table of values for the graph x + y = 6

djyliett [7]

Answer:

(0,6)

(1,5)

(2,4)

(3,3)

(4,2)

Step-by-step explanation:

To solve this table first convert the equation to slope-intercept form (y=mx+b), to do this solve for y in the equation. The slope-intercept form is y=-x+6, where -1 is the slope and 6 is the y-intercept. Then from that, you can get your first point, because you know the y-intercept is 6, therefore when x equals 0 y must be 6. Next, because the slope is -1 that means the y-value decreases by 1 every time the x-value increases by 1. So to find the rest of the y-values simply subtract 1 from the previous y-value.

4 0

3 years ago

When Jake's puppy was born she weighed 1.2 pounds in two months she weighed 11.15 pounds how much weight did Jack jacks pub agai

natulia [17]

They gained 9.95 pounds.

7 0

3 years ago

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Houw would i factor this problem out completely?

kvasek [131]

You can factor out a 3t first, resulting in:
$3t(2t^2+3t-5)$

Now, let's factor the equation in the middle using the quadratic equation. Plug in the values to the quadratic equation:
$\frac{-3\pm \sqrt{3^2-4(2)(-5)}}{2(2)} = -\frac{3\pm \sqrt{49}}{4} = -\frac{3\pm 7}{4}$

Simplify, you get your x's:
$x = 1, -\frac{5}{2}$

To write the equation in simplified form, you just write it this way:
$3t(x-1)(2x+5)$

That's your answer ^

3 0

3 years ago

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