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Reil [10]
3 years ago
9

Write an expression for h multiplied by 9 then evaluate that expression when h=3 full working out

Mathematics
2 answers:
Dimas [21]3 years ago
8 0

Answer:

9h

9(3) = 27

Step-by-step explanation:

expression for h multiplied by 9

9h

evaluate that expression when h=3

9(3) = 27

garri49 [273]3 years ago
3 0

Answer:

9h

h=3

substitute 3 into h

9(3)=27

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WILL MARK BRAINLEIST
lina2011 [118]

Answer:

decrease by 50%

Step-by-step explanation:

\frac{0.4x}{0.8y} =\frac{x}{2y}      

Decreased by 60% = (100%-60%)x = 0.4x.

Decreased by 20% = (100%-20%)x = 0.8x.

\frac{x}{y} initial fraction, and we can see that denominator will increase 2 times, so fraction will decrease 2 times, or decrease by 50%.

6 0
3 years ago
The question is in the picture i attached. the right answer gets brainlist :) <3
sergeinik [125]

Answer:

∠ 4 = 130°

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

∠ 4 is an exterior angle of the triangle , so

∠ 4 = ∠ 1 + ∠ 2 ( substitute values )

11x + 9 = 6x + 6 + 4x + 14 , that is

11x + 9 = 10x + 20 ( subtract 10x from both sides )

x + 9 = 20 ( subtract 9 from both sides )

x = 11

Then

∠ 4 = 11x + 9 = 11(11) + 9 = 121 + 9 = 130°

your friend may have only calculated ∠ 1

∠ 1 = 6x + 6 = 6(11) + 6 = 66 + 6 = 72°

7 0
2 years ago
Each marble bag sold by Yolanda's Marble Company contains 8 orange marbles for every 5 yellow marbles.
Stells [14]

Answer:

64.

Step-by-step explanation:

By proportion  to number of orange marbles =  (40 / 5) * 8

=  320 / 5

= 64 .

7 0
3 years ago
Instructions: Determine whether the following polygons are similar. If yes, type in
Anni [7]

Answer:

No, the polygons aren't similar since they don't have a constant scale factor.

8 0
2 years ago
the lenghty of a rectangal is 8 feet more than its width. the pirimete of the rectangle is 72 feet. Find the width
morpeh [17]

Width of the rectangle is 14 ft

Step-by-step explanation:

  • Step 1: Let the width of the rectangle be x. Then length = 8 + x. Perimeter = 72 ft.

Perimeter = 2(length + width)

72 = 2 (8 + x + x)

72 = 16 + 4x

4x = 56

x = 56/4 = 14

∴ Width of the rectangle is 14 ft

3 0
3 years ago
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