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2 years ago

What two numbers multiply to get -9 but add to get 3

Mathematics

1 answer:

azamat2 years ago

8 0

X+y=3 x*y=-9 This isn't possible because the only factor they share is 3 but 3+-3 =0 not 3

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Please help. will mark brainliest

Semmy [17]

DH = HF

x + 1 = 3y

y = (x + 1) ⁄ 3

GH = HE

3x – 4 = 5y + 1

y = (3x – 5) ⁄ 5

y = y

(x + 1) ⁄ 3 = (3x – 5) ⁄ 5

5x + 5 = 9x – 15

4x = 20

x = 5

y = (x + 1) ⁄ 3

y = (5 + 1) ⁄ 3

y = 2

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Answer:

Step-by-step explanation:

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2 years ago

Read 2 more answers

8. Hassan made a vegetable salad with 2 3/8 pounds

amm1812

let's convert firstly the mixed fractions to improper fractions and then add up.

$\bf \stackrel{mixed}{2\frac{3}{8}}\implies \cfrac{2\cdot 8+3}{8}\implies \stackrel{improper}{\cfrac{19}{8}}~\hfill \stackrel{mixed}{1\frac{1}{4}}\implies \cfrac{1\cdot 4+1}{4}\implies \stackrel{improper}{\cfrac{5}{4}} \\\\\\ \stackrel{mixed}{2\frac{7}{8}}\implies \cfrac{2\cdot 8+7}{8}\implies \stackrel{improper}{\cfrac{23}{8}} \\\\[-0.35em] ~\dotfill$

$\bf \cfrac{19}{8}+\cfrac{5}{4}+\cfrac{23}{8}\implies \stackrel{\textit{using an LCD of 8}}{\implies \cfrac{(1)19+(2)5+(1)23}{8}}\implies \cfrac{19+10+23}{8} \\\\\\ \cfrac{52}{8}\implies \cfrac{13}{2}\implies 6\frac{1}{2}$

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2 years ago