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3 years ago

45% of the beads in a box are blue. if there are 36 blue beads in the box, how many beads are there altogether ?

Mathematics

2 answers:

Pie3 years ago

5 0

36÷0.45=80
There are 80 beads altogether

GrogVix [38]3 years ago

5 0

Breaking down the numbers shows that if 45% is 36 beads, then 5% is 4 beads (divide by 9). Then multiply 5% by 20 (to get 100%) and 4 beads by 20 (distributive property) to have 80 beads.

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select the irrational number? A)√9 B)√12 C)√16 D)√20 E)√25 (there should be more than one answer)

GenaCL600 [577]

The answers are:
__________________________
[B]: "√12 " ; AND:
__________________________
[D]: "√20" .
__________________________
Note: "Irrational numbers" have decimals that are: 1) non-terminating; AND: 2) non-repeating.
__________________________
Consider the answer choices given; and consider the given information that there "should be no more than one answer.
__________________________________
Consider the following answer choices:
__________________________________
Choice A) "√9" = 3 . Rule out this choice.
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Choice C) "√16" = 4 . Rule out this choice.
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Choice E) "√25" = 5. Rule out this choice.
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We are left with 2 (two) remaining answer choices:
[B]: "√12" ; and: [D]: "√20" .
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If there are more than one answer, then these two choices should be the correct answer. However, let us explore these two choices, using a calculator.
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[B]: "√12" = 3.4641016151377546

[D]: "√20" = 4.4721359549995794
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These two answer choices should the correct answers.

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3 years ago

5x + y = 11 4x + y = 9

erma4kov [3.2K]

The first one is -5
The second one is -4

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3 years ago

Lorie correctly determines that for the triangles below, the statement pg and the statement both describe the relationship betwe

Tasya [4]

Answer:

The correct option is 1.

Step-by-step explanation:

Two triangles are called similar if all the corresponding angles are congruent or all corresponding sides are in same proportion.

In triangle MNO and triangle RTS.

$\angle M\cong\angle R=54.4^{\circ}$ (Given)

$\angle N\cong\angle T=71.2^{\circ}$ (Given)

According to the angle sum property, the sum of all interior angles of a triangle is 180 degree. Since two corresponding angles are congruent, therefore third angle is also congruent.

$\angle O\cong\angle S=54.4^{\circ}$

Since all corresponding angles are congruent, therefore the triangles MNO and RTS similar.

The triangle are congruent by AA rule of similarity. Each triangle has two congruent angles, therefore both triangles are similar. Option 1 is correct.

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tensa zangetsu [6.8K]

Answer:

Step-by-step explanation:

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Mark the statements that are true. A. An angle that measures π/4 radians also measures 45°. B. An angle that measures 180° also

FinnZ [79.3K]

Answer:

TRUE: A, B, C

False: D

Step-by-step explanation:

A full circle of 360° has a radian measure of 2π radians. The relationship is proportional, so π radians is 180°.

A. An angle that measures π/4 radians also measures 45°. TRUE

45° × π/180° radians = π/4 radians

B. An angle that measures 180° also measures π radians. TRUE

180° × π/180° radians = π radians

C. An angle that measures 60° also measures π/3 radians. TRUE

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D. An angle that measures π/3 radians also measures 30°. FALSE

30° × π/180° radians = π/6 radians

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