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kumpel [21]
3 years ago
8

Please I need help ASAP (brainly + thank you + brainly)

Mathematics
2 answers:
andrew11 [14]3 years ago
4 0
<span>88.3 : 100 = 86.7 : x
 x = 98.18 
100-98.18=1.81 (rounded 1.8)
----------------------------------------------

(88.3-1.8%=86.7)</span>
Rainbow [258]3 years ago
4 0

88.3-1.8%=86.7 is the answer

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aniked [119]

\huge{\sf \left[{x-2y\atop 6x-2z}\:\:\:{4y-3\atop 2y-z}\right]=\left[{-3\atop 4}\:\:\:{5\atop 3}\right]}

Creating equations

\\ \sf\longmapsto x-2y=-3\dots(1)

\\ \sf\longmapsto 4y-3=5\dots(2)

\\ \sf\longmapsto 6x-2z=4\dots(3)

\\ \sf\longmapsto 2y-z=3\dots(3)

  • From eq(2)

\\ \sf\longmapsto 4y-3=5

\\ \sf\longmapsto 4y=5+3

\\ \sf\longmapsto 4y=8

\\ \sf\longmapsto y=\dfrac{8}{4}

\\ \bf\longmapsto y=2

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\\ \sf\longmapsto x-2y=-3

\\ \sf\longmapsto x=-3+2y

\\ \sf\longmapsto x=-3+2(2)

\\ \sf\longmapsto x=-3+4

\\ \bf\longmapsto x=1

  • Put the value in eq(4)

\\ \sf\longmapsto 2y-z=3

\\ \sf\longmapsto z=2y-3

\\ \sf\longmapsto z=2(2)-3

\\ \sf\longmapsto z=4-3

\\ \bf\longmapsto z=1

8 0
3 years ago
Chelsea did yard work for 7 hours last weekend. Her parents paid her $40. How much did she get paid per hour?
Igoryamba

Answer:

$5.71

Step-by-step explanation:

40 divided by 7 equals 5.71428571, which should be rounded to 5.71.

8 0
3 years ago
Read 2 more answers
Devon made a scale drawing of a triangle. He used a scale factor of 1/4 to draw the new triangle. How does each side of the new
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The answer is Option A.
Scale Factors
If the Scale Factor IS 1, the polygon stays the SAME.
(If an equilateral triangle has a side length of 8 and the scale factor is 1, the sides will stay at 8)
If the Scale Factor is MORE THAN 1, the polygon's sides INCREASE depending on what the scale factor is.
(If a square has a side length of 3 and the scale factor is 4, the sides will increase to 12)
If the Scale Factor is LESS THAN 1, the polygon's sides DECREASE depending on what the scale factor is.
(If a square has a side length of 5 and the scale factor is 1/2, the side lengths will decrease down to 0.5)
Therefore each side length of the new triangle is 4 times shorter than the original (Option A)
7 0
3 years ago
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What is 92,328,425 in word form
Angelina_Jolie [31]
Ninety two million, three hundred twenty eight thousand, four hundred twenty five HOPE I HELPED
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3 years ago
[[3+ (8-3^2)-2] +3] / 5-2•2
katovenus [111]
3
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