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givi [52]
3 years ago
15

Ivan has 6 times as many blue beads as red beads. he has 49 red and blue beads in all. how many blue beads does Ivan have

Mathematics
2 answers:
Tpy6a [65]3 years ago
7 0

The total number of blue beads with Ivan is \boxed{\bf 42}.

Further explanation:

It is given that Ivan has 6 times as many blue beads as red beads.

The total number of beads are 49.

Calculation:

Assume the beads of red color are denoted by R and the beads of blue color are denoted by B.

Now, given that there are total 49 beads and this can be written in the form of an equation as follows:

\boxed{R+B=49}     ......(1)

Also, given that Ivan has 6 times as many blue beads as red beads and this can written as follows:

\boxed{6R=B}         ......(2)

Substitute the value 6R=B in equation (1), we get

\begin{aligned}R+6R&=49\\7R&=49\\R&=\dfrac{49}{7}\\R&=7\end{aligned}

Therefore, Ivan has 7 red beads.

Substitute R=7 in equation (1).

\begin{aligned}B&=6\cdot 7\\&=42\end{aligned}

This implies that number of blue beads are 42.

Thus, the total number of blue beads with Ivan is \boxed{\bf 42}.

Learn more

1. Problem on the equation of the circle brainly.com/question/1952668

2. Problem on the center and radius of an equation brainly.com/question/9510228

3. Problem on the general form of the equation of the circle brainly.com/question/1506955

Answer details:

Grade: Middle school

Subject: Mathematics

Chapter: Linear equations in two variables

Keywords: Linear equations in one variable, linear equations in two variables, substitution, elimination, function, sets, real numbers, ordinates, abscissa, interval.

salantis [7]3 years ago
3 0

Let

x--------> the number of blue beads

y--------> the number of red beads

we know that

x+y=49

x=49-y -------> equation 1

x=6y ------> equation 2

equate equation 1 and equation 2

49-y=6y\\ 6y+y=49\\ 7y=49\\\\ y=\frac{49}{7} \\  \\ y=7

find the value of x

x=6*7\\ x=42

therefore

the answer is

Ivan has 42 blue beads

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