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Bogdan [553]
3 years ago
10

MARKING BRAINLIEST

Mathematics
1 answer:
Schach [20]3 years ago
4 0

Answer

2.25

Step-by-step explanation:

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2x+5y=-55 y=3x+6 What is the solution
Arlecino [84]
Let: eq 1:2x+5y=-55
eq 2:y=3x+6
by substituting eq 2 in eq 1 we get,
2x+5(3x+6)=-55
2x+15x+30+55=0
17x + 85=0
x=-85/17
x=-5
By substituting x value in eq 2,
we have,
y=3(-5)+6=-15+6=-9
3 0
3 years ago
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The distance on a map between the entrance of the park in waterfall inside the park is 4 1/2 inches if 3 inches is 2 1/2 miles w
aleksandrvk [35]
5 3/4 divided by 4 1/2       23/4 divided by 9/2     23/4 times 2/9      46/36 = 1 and 10/36  (reduced) = 1 and 5/18 inches

5 0
3 years ago
Would appreciate some help thanks
defon

Answer:

f(8) = -9

Step-by-step explanation:

Substitute 8 in for x.

f(8) = -2(8) + 7

f(8) = -16 + 7

f(8) = -9

6 0
3 years ago
F(x)3x+5/x what is f(a+2)
german

Answer:

3a+6+5/(a+2)

Step-by-step explanation:

To do this you replace x with a+2, meaning that 3x+5/x turns into 3(a+2)+5/a+2. Simplified this is 3a+6+5/(a+2)

7 0
3 years ago
Proof that 1^√2 = 1 is true
Reika [66]

Answer:

1^sqrt(2) = 1 is always true

Step-by-step explanation:

8 0
3 years ago
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