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USPshnik [31]
3 years ago
5

Solving Simultaneously equations 3. 2x + 3y = 1 -x + 2y = - 4

Mathematics
2 answers:
enot [183]3 years ago
7 0

Answer:

2x5y7

Step-by-step explanation:

Stels [109]3 years ago
7 0
2x5y7 and good luck on your hw/test
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please help me i will mark brainliest!!! Rewrite as a simplified fraction 0.612 also the 12 is repeating
Aleksandr [31]

Answer:

= 68/111

Step-by-step explanation:

4 0
2 years ago
Hai, I need help ;)
STatiana [176]

Step-by-step explanation:

Some expressions that are equivalent to this is: 1 - 1/5; 2 - 1  1/5; 3 - 2  1/5; etc.

4 0
2 years ago
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I tracked an ant as it crawled around on the sidewalk. It went straight North for 8 inches, then it turned left and traveled for
mixas84 [53]

Answer:

18 inches

Step-by-step explanation:

8+4=12

12+6=18

18 inches

Someone deleted my answer so I posted it again.

Hope this helps!

8 0
3 years ago
A, b, c and d are positive integers, such that a+b+ ab = 76, c+d+ cd = 54. Find (a+b+c+d)·a·b·c·d.
lutik1710 [3]

Notice that

(1 + <em>x</em>)(1 + <em>y</em>) = 1 + <em>x</em> + <em>y</em> + <em>x y</em>

So we can add 1 to both sides of both equations, and we use the property above to get

<em>a</em> + <em>b</em> + <em>a b</em> = 76  ==>  (1 + <em>a</em>)(1 + <em>b</em>) = 77

and

<em>c</em> + <em>d</em> + <em>c d</em> = 54  ==>  (1 + <em>c</em>)(1 + <em>d</em>) = 55

Now, 77 = 7*11 and 55 = 5*11, so we get

<em>a</em> + 1 = 7  ==>  <em>a</em> = 6

<em>b</em> + 1 = 11  ==>  <em>b</em> = 10

(or the other way around, since the given relations are symmetric)

and

<em>c</em> + 1 = 5  ==>  <em>c</em> = 4

<em>d</em> + 1 = 11  ==>  <em>d</em> = 10

Now substitute these values into the desired quantity:

(<em>a</em> + <em>b</em> + <em>c</em> + <em>d</em>) <em>a</em> <em>b</em> <em>c</em> <em>d</em> = 72,000

6 0
3 years ago
What system of equations can be used to ring s, the cost in dollars of each standard photo and w, the cost in dollars of each wa
Vaselesa [24]

Answer:

A

Step-by-step explanation:

6 0
3 years ago
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