3 years ago

14 is 20% of what number

Mathematics

2 answers:

Elena-2011 [213]3 years ago

6 0

20/100 . x = 14
20x = 1400
x = 1400/20
x = 70

Montano1993 [528]3 years ago

5 0

$x* \frac{20}{100} =14$ :

$x* \frac{2}{10} =14$ :

$\frac{2x}{10} =14$ :

$2x=14*10:$

$2x=140:$

$x=70$

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Solve the system by substitution. SHOW WORK -X - Y - Z=-8 - 4X +4Y +5Z=7 2X + 2Z=4

jeyben [28]

Solve:

-X - Y - Z =-8
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-X - Y - Z =-8 becomes -x - y - (2 -x) = -8
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Now we have 2 equations in only 2 unknowns. Let's simplify them!

-x - y - 2 + x = -8 which becomes -y = -6, or y = 6
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The solution is (3, 6, -1). Check it!!

3 0

3 years ago

The weight of water in a person’s body varies directly as his/her body weight. The body of 170-lb person contains about 119-lb o

NeTakaya

Answer:

119-50 pounds = 69 so 169 pounds -step explanation: blood= weight (k)

Step-by-step explanation:

y=kx

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finding the constant of variation

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