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andrey2020 [161]
2 years ago
14

Trey bakes 70 cupcakes for the school Bake Sale. Worried they might run out, he bakes some extra and now has 112 cupcakes.

Mathematics
1 answer:
Ber [7]2 years ago
5 0

Answer:

60%

Step-by-step explanation:

112:70*100= (112*100):70\\(112*100)=11200\\11200:70=160

so if 70 is 100%, 112 is 160%

and that is a 60% difference

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Find the estimates of x^2-x-2=3
Julli [10]

Answer:

x=\frac{1+\sqrt{21}}{2}\approx 2.79\\or\ x=\frac{1-\sqrt{21}}{2}\approx -1.79

Step-by-step explanation:

Given

Quadratic equation is

x^2-x-2=3\\x^2-x-5=0

Roots of the quadratic equation ax^2+bx+c=0 are

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So, for the given equation roots are

x=\frac{1\pm\sqrt{(-1)^2-4(1)(-5)}}{2\cdot 1}\\x=\frac{1\pm\sqrt{21}}{2}\\so, x=\frac{1+\sqrt{21}}{2}\approx 2.79\\or\ x=\frac{1-\sqrt{21}}{2}\approx -1.79

5 0
2 years ago
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Montano1993 [528]

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7 0
3 years ago
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Diano4ka-milaya [45]
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torisob [31]

Answer:

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