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3 years ago

There is a total of 63 bikes if the ratio of blue to black bikes is 4 to 5 how many are blue

1 answer:

4 0

Since the given ratio is blue:black is 4:5
4+5=9

4/9= 0.44 ~ 44%
5/9= 0.56 ~ 56%

Since there are a total of 63 bikes and 44% of these bikes are blue we just multiply 44% with the total number of bikes.

Solution:
1. 0.44 x 63 = 28
2. 0.56 x 63 = 35

Conclusively, there are 28 bikes that are colored blue.

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A triangle has sides with lengths of 4 inches, 14 inches, and 17 inches. Is it a right triangle?

irga5000 [103]

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2 years ago

I am not sure how sigma notation works, can somebody explain how to solve this? It isn't the second choice.

Masja [62]

Answer:

first answer is correct

Step-by-step explanation:

Hello, we want to write 2 + 4 + 6 + ... + 20

for n = 1, 2n = 2*1 =2

for n = 2, 2n = 2*2=4

for n = 3, 2n=2*3=6

etc

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thanks

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2 years ago

which shows one way to determine the factors of 12x^3 - 2x^2 + 18x - 3 by grouping? A) 2x^2(6x - 1) + 3(6x - 1) B) 2x^2(6x - 1)

Eva8 [605]

Answer:

$2x^2(6x - 1) + 3(6x - 1)$

Step-by-step explanation:

Given

$12x^3 - 2x^2 + 18x - 3$

Required

Factorize

To start with; we need to group the expression into two

$(12x^3 - 2x^2) + (18x - 3)$

Factorize each grouped expression, using their common factor

$2x^2(6x - 1) + 3(6x - 1)$

From the list of given options;

Option A is correct

4 0

2 years ago

2. Which of the following statements is true?

Vesnalui [34]

The first and last choices are true.

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3 years ago

What is the first step on factoring a polynomial

vladimir1956 [14]

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Hope this helps!

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3 years ago