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lisov135 [29]
2 years ago
6

20 out of the 80 students in Quad 6A have no sibling. What is the fraction of students have no siblings? (simplify the fraction)

Mathematics
1 answer:
I am Lyosha [343]2 years ago
3 0

Answer:

¼

Step-by-step explanation:

20 ÷ 80 = 0.25

0.25 = ¼ or 1 quarter

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What is (y-10)(4y+2)?
AleksandrR [38]

Answer:

4y²−38y−20

Step-by-step explanation:

(y−10)(4y+2)

=(y+−10)(4y+2)

=(y)(4y)+(y)(2)+(−10)(4y)+(−10)(2)

=4y²+2y−40y−20

=4y²−38y−20

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2 years ago
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I need help asap with this
tatyana61 [14]

Answer:

51°

Step-by-step explanation:

Given

<QPR = 39°

<PQR = 90° ( inscribed angle in semi circle)

Now

<QPR + <PQR + <PRQ = 180° { being sum of angles of triangle)

39° + 90° + <PRQ = 180°

<PRQ = 180° - 39° - 90°

<PRQ = 51°

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2 years ago
What set of reflections would carry trapezoid ABCD onto itself? (1 point) Trapezoid ABCD is shown. A is at negative 5, 1. B is a
amid [387]

Answer:

y=x, x axis,  y=x, y axis

Step-by-step explanation:

If a point A(x, y) is reflected along the y = x line, the new coordinates would be A'(y, x)

If a point A(x, y) is reflected across the x axis, the new coordinates would be A'(x, -y)

If a point A(x, y) is reflected along the y axis, the new coordinates would be A'(-x, y)

Firstly reflect Trapezoid ABCD along the y = x line to give:

A (-5, 1) ⇒ A'(1, -5). B (-4, 3) ⇒ B'(3, -4). C (-2, 3) ⇒C'(3, -2). D (-1, 1) ⇒ D'(1, -1)

Secondly reflect along the x axis to give:

A'(1, -5)⇒ A"(1,5). B'(3, -4)⇒ B"(3,4), C'(3, -2)⇒C"(3, 2), D'(1, -1) ⇒ D"(1, 1)

Thirdly reflect along the y = x line to give:

A"(1,5) ⇒ A"'(5, 1). B"(3,4) ⇒ B"'(4, 3). C"(3, 2) ⇒ C"'(2, 3). D"(1, 1) ⇒ D"'(1, 1)

Lastly reflect along the y axis to give:

A"'(5, 1) ⇒ A""(-5, 1), B"'(4, 3) ⇒ B""(-4, 3), C"'(2, 3) ⇒ C""(-2, 3), D"'(1, 1) ⇒ D""(-1.1)

6 0
3 years ago
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lutik1710 [3]

Answer:

B) 75, 3

Step-by-step explanation:

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2 years ago
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krok68 [10]

Answer:

A. 25 ounces B. 6.5 ounces C. 10 ounces

Step-by-step explanation:

A.

\frac{3}{5}x = 15\\\implies x = \frac{5}{3}\times{15}\\\implies x = 25

B.

y = 15 - 8.5\\= 6.5

C.

\frac{8}{5}z = 16\\\implies z = \frac{5}{8}\times16\\\implies z = 10

5 0
3 years ago
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