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horsena [70]
2 years ago
15

If AC = 2x + 13 and DB = 4x - 1. Find DB

Mathematics
1 answer:
yulyashka [42]2 years ago
5 0
The answer is 7

2x+13=4x-1
14=2x
7=x
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The answer is 42 students were in the club

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Susan had 8/9 acres of land. She planted 2/5 of it with corn. How many acres did she plant with corn?
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\bf \textit{how much is }\frac{2}{5}\textit{ of }\frac{8}{9}?\implies \cfrac{8}{9}\cdot \cfrac{2}{5}\implies \cfrac{16}{45}

that's how many acres she planted with corn.
6 0
3 years ago
X/5-2=x/2+3 solve for x
Makovka662 [10]
Solve for x:x/5 - 2 = x/2 + 3
Put each term in x/5 - 2 over the common denominator 5: x/5 - 2 = x/5 - (10)/5:x/5 - (10)/5 = x/2 + 3
x/5 - (10)/5 = (x - 10)/5:(x - 10)/5 = x/2 + 3
Put each term in x/2 + 3 over the common denominator 2: x/2 + 3 = x/2 + 6/2:(x - 10)/5 = x/2 + 6/2
x/2 + 6/2 = (x + 6)/2:(x - 10)/5 = (x + 6)/2
Multiply both sides by 10:(10 (x - 10))/5 = (10 (x + 6))/2
10/5 = (5×2)/5 = 2:2 (x - 10) = (10 (x + 6))/2
10/2 = (2×5)/2 = 5:2 (x - 10) = 5 (x + 6)
Expand out terms of the left hand side:2 x - 20 = 5 (x + 6)
Expand out terms of the right hand side:2 x - 20 = 5 x + 30
Subtract 5 x from both sides:(2 x - 5 x) - 20 = (5 x - 5 x) + 30
2 x - 5 x = -3 x:-3 x - 20 = (5 x - 5 x) + 30
5 x - 5 x = 0:-3 x - 20 = 30
Add 20 to both sides:(20 - 20) - 3 x = 20 + 30
20 - 20 = 0:-3 x = 30 + 20
30 + 20 = 50:-3 x = 50
Divide both sides of -3 x = 50 by -3:(-3 x)/(-3) = 50/(-3)
(-3)/(-3) = 1:x = 50/(-3)
Multiply numerator and denominator of 50/(-3) by -1:Answer:  x = (-50)/3
7 0
2 years ago
Which one is bigger 6000 grams or 5000 kg
shusha [124]

Answer:

5000kg \: is \: greater.

as \: we \: know \: that \: 1000 \: gramm \: make \: 1 \: kg

so \: 6000 \: g \: make \: 6 \: kg.

and \: 5000 \: kg \: is \: much \: greater \: than \: 6 \: kg.

8 0
2 years ago
A zoo orders food in bulk for it's animals. they order enough fresh fruit to last 10 days, enough fresh vegetables for 7 days, a
hammer [34]

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The answer to this question is C.) 70 Days

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