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blsea [12.9K]
2 years ago
13

Answer these year 7 math questions please ty !

Mathematics
2 answers:
Dafna11 [192]2 years ago
8 0
Hi!
1) 4 - 5x
2) 5x - 4
hope this helps :)
ankoles [38]2 years ago
3 0

Answer:

4-5x

5x-4

Step-by-step explanation:

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0.3m=$4.41 
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Please help, this will just take a minute of your time ❤︎ (literally)<br>(Discriminant Worksheet)
igomit [66]

Answer:

\large\boxed{x=-\dfrac{7-\sqrt{97}}{4}\ \vee\ x=-\dfrac{7+\sqrt{97}}{4}}

Step-by-step explanation:

ax^2+bx+c=0\\\\\Delta=b^2-4ac\\\\\text{if}\ \Delta0,\ \text{then an equation has two solutions:}\ x=\dfrac{-b\pm\sqrt\Delta}{2a}\\\\\text{We have:}\\\\-2x^2-7x+10=4\qquad\text{subtract 4 from both sides}\\\\-2x^2-7x+6=0

a=-2,\ b=-7,\ c=6\\\\\Delta=(-7)^2-4(-2)(6)=49+48=97>0\\\\\sqrt\Delta=\sqrt{97}\\\\x=\dfrac{-(-7)\pm\sqrt{97}}{2(-2)}=\dfrac{7\pm\sqrt{97}}{-4}=-\dfrac{7\pm\sqrt{97}}{4}

6 0
3 years ago
general admission tickets to the fair cost $3.50 per person rides pass cost an additional $5 and fifty per person parking cost $
horrorfan [7]

Total people x,

then, 3.5x + 5.5x + 6 = 51

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therefore, total 5 people in the family.

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3 years ago
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Answer:

answer is no solution (filler)

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2 years ago
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