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2 years ago

Hannah has 36 space rocks total. How many more purple rocks does Hannah have than blue rocks?

Mathematics

1 answer:

DiKsa [7]2 years ago

8 0

Answer:

720

Step-by-step explanation:

i hope this helps

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What is 1 7/8 times 5/6

hoa [83]

$Solution, 1\frac{7}{8}\cdot \frac{5}{6}=1\frac{9}{16}\quad \left(\mathrm{Decimal:\quad }\:1.5625\right)$

$Steps:$

$\mathrm{Convert\:mixed\:numbers\:to\:improper\:fractions}:\quad 1\frac{7}{8}=\frac{15}{8}, =\frac{15}{8}\cdot \frac{5}{6}$

$\mathrm{Cross-cancel\:common\:factor:}\:3, =\frac{5}{8}\cdot \frac{5}{2}$

$\mathrm{Multiply\:fractions}:\quad \frac{a}{b}\cdot \frac{c}{d}=\frac{a\:\cdot \:c}{b\:\cdot \:d}, =\frac{5\cdot \:5}{8\cdot \:2}$

$\mathrm{Multiply\:the\:numbers:}\:5\cdot \:5=25, =\frac{25}{8\cdot \:2}$

$\mathrm{Multiply\:the\:numbers:}\:8\cdot \:2=16, =\frac{25}{16}$

$\mathrm{Convert\:improper\:fractions\:to\:mixed\:numbers}:\quad \frac{25}{16}=1\frac{9}{16}, =1\frac{9}{16}$

Hope this helps!!!

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3 years ago

Solve the Inequality. Graph the Solution.<br><br> 8+k<-3

makvit [3.9K]

Desmos graphing calculator helps, look it up online.(:

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2.6 * 100 / 6.5 = 40 %

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(3 + 4i) - (8 -5i) Write answer in standard form a +bi Group of answer choices

Anton [14]

Answer:

$A=-5+9i$

Step-by-step explanation:

$\left(3+4i\right)-\left(8-5i\right)\\\\\mathrm{Group\:the\:real\:part\:and\:the\:imaginary\:part\:of\:the\:complex\:number}\\\left(a+bi\right)\pm \left(c+di\right)=\left(a\:\pm \:c\right)+\left(b\:\pm \:d\right)i\\\\=\left(3-8\right)+\left(4+5\right)i\\3-8=-5\\4+5=9\\\\=-5+9i$

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