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PolarNik [594]
3 years ago
11

Please help ASAP for 10 points!!

Mathematics
1 answer:
Lena [83]3 years ago
3 0

I believe it's 2a + 2c So sory if it's wrong!

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I have the equations 8x + 3y = 20.50 and 4x + 5y = 22.50<br> How do I solve for x and y?
snow_tiger [21]
8x + 3y = 20.50
-
4x+5y=22.50
=
4x-2y=-2, so you have to divide each number by 2, then
2x-y=-1, so

-y=-1-2x /-1, y=1+2x, then replace it with one original equation like the first one for instance:
8x+3(1+2x)=20.50, then
8x+3+6x=20.50, then
14x=20.50-3
14x=17.5
x=1.25, then solve y:\
y=1+2*(1.25)
y=1+2.5
y=3.5,
So answer is x=1.25, and y=3.5

6 0
3 years ago
Sally has three tiles each tile is has a different number on it so he puts the three tires down to make a number each number is
Juli2301 [7.4K]

this would be equal to factorial 3 which is written 3! .

It is 3 * 2 *  1 =  6 numbers answer.

4 0
3 years ago
What is the measure of a base angle of an isosceles triangle if the measure of the vertex angle is 38 and the two congruent side
Harrizon [31]
Bearing in mind that an isosceles triangle has twin sides, and coming out of the vertex they make twin angles at the base, check the picture below.

4 0
2 years ago
A batch of cookies is 24 cookies. It cost Courtney 134 dollars and 40 cents to make 10 batches of cookies.
lilavasa [31]

Answer:

13 dollars and 44 cents, 56 cents.

Step-by-step explanation:

134 dollars are 40 cents = 134.4 dollars.

10b = 134.4

b = 13.44

13 dollars and 44 cents

There are 24 cookies to a batch

24c = 13.44

c = 0.56.

so each cookie costs 56 cents

7 0
2 years ago
Read 2 more answers
[GEOMETRY] Suppose A and B are independent events.  what is P(A U B) ?
ra1l [238]
My guess would be B.
Don't quote me on this lol.
8 0
3 years ago
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