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Ivan
3 years ago
9

Three hours ahead of ten forty in the morning

Mathematics
2 answers:
VashaNatasha [74]3 years ago
6 0
It's one forty PM in the afternoon (just look at a clock)
Maurinko [17]3 years ago
5 0
10 + 3 = 13
13-12 (noon) = 1
3 hours ahead of 10:40 in the morning is 1:40 in the afternoon. (13:40 in military)
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Solve for x<br> (-4/3) x - 6 = -26<br><br> A. −27<br> B. −15<br> C. 15<br> D. 27
andre [41]
- \dfrac{4}{3} x - 6 = -26

//Add 6 to both sides:
- \dfrac{4}{3} x  = -20

//Multiply by -1 on both sides:
\dfrac{4}{3} x  = 20

Multiply by 3 on both sides:
4x  = 60

Divide by 4 on both sides:
x  = 15

-----------------------------------------
Answer: x = 15 (Answer C)
-----------------------------------------
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3 years ago
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7 0
2 years ago
A teacher and a doctor each have 45 books. If 4/5 f the teacher's books and 2/3 of the doctor's books are novels, how many more
Anarel [89]

Answer:

3/5

Step-by-step explanation:

8 0
3 years ago
The sides of a triangle are x , x +1 , 2 x -1 and its area is x root of 10 .Find the value of x.
VARVARA [1.3K]


Ok, I'm going to start off saying there is probably an easier way of doing this that's right in front of my face, but I can't see it so I'm going to use Heron's formula, which is A=√[s(s-a)(s-b)(s-c)] where A is the area, s is the semiperimeter (half of the perimeter), and a, b, and c are the side lengths.

Substitute the known values into the formula:

x√10=√{[(x+x+1+2x-1)/2][({x+x+1+2x-1}/2)-x][({x+x+1+2x-1}/2)-(x+1)][({x+x+1+2x-1}/2)-(2x-1)]}

Simplify:

<span>x√10=√{[4x/2][(4x/2)-x][(4x/2)-(x+1)][(4x/2)-(2x-1)]}</span>

<span>x√10=√[2x(2x-x)(2x-x-1)(2x-2x+1)]</span>

<span>x√10=√[2x(x)(x-1)(1)]</span>

<span>x√10=√[2x²(x-1)]</span>

<span>x√10=√(2x³-2x²)</span>

<span>10x²=2x³-2x²</span>

<span>2x³-12x²=0</span>

<span>2x²(x-6)=0</span>

<span>2x²=0 or x-6=0</span>

<span>x=0 or x=6</span>

<span>Therefore, x=6 (you can't have a length of 0).</span>

6 0
3 years ago
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Mekhanik [1.2K]

Answer:

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This should be it have a great day buddy!

8 0
3 years ago
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