3 years ago

4m (2mn-8m) +3n (5n-6mn) please help me

Mathematics

1 answer:

Alecsey [184]3 years ago

7 0

Answer:

-32m-4mn+15n

Step-by-step explanation:

BODMAS means Bracket of Division Multiplication Addition Subtraction.

So any time you have lot of signs use BODMAS.

Thank you do you understand

You might be interested in

Zoey made 6 3/4 cups of fruit salad for a picnic. At the picnic, they ate 1/3 of the fruit salad. How much of the fruit salad di

Aleks04 [339]

Answer:

9/4 cups

Step-by-step explanation:

6 3/4 = 27/4

27/4 * 1/3 = 27/12

27/12 = 9/4

4 0

2 years ago

-8+ 8b = 16 8b+8=16 -8=-8 8b=8

e-lub [12.9K]

$b = 3 \\ b = 1 \\ 0 \\ b = 1$

7 0

3 years ago

You can spend at most $60 on beads. A bag containing red beads costs $2 per bag. A bag containing blue beads costs $3 per bag. Y

nexus9112 [7]

For this case, the first thing we must do is define variables.
We have then:
x: number of blue beads
y: number of red beads
We now write the inequations system:
$3x + 2y \leq 60

x\ \textgreater \ y$
Answer:
a system of linear inequations that represents the situation is:
$3x + 2y \leq 60 x\ \textgreater \ y$

8 0

2 years ago

Read 2 more answers

Given the sequence in the table below, determine the sigma notation of the sum for term 4 through term 15.

Naya [18.7K]

It's a geometric sequence.

$4,-12,36,... \\ \\
a_1=4 \\
r=\frac{a_2}{a_1}=\frac{-12}{4}=-3 \\ \\
a_n=a_1 \times r^{n-1} \\
a_n=4 \times (-3)^{n-1} \\
a_n=4 \times (-3)^{-1} \times (-3)^n \\
a_n=4 \times (-\frac{1}{3}) \times (-3)^n \\
a_n=-\frac{4}{3}(-3)^n$

It's the sum for term 4 through term 15.

$\boxed{ \sum\limits_{n=4}^{15} (\frac{4}{3}(-3)^n)}$

8 0

2 years ago

In Jack's class, 7 out of 25 students have hazel eyes. What percent of the class has hazel eyes?

denis23 [38]

You're going to set up a proportion. % over 100 = is over of. You're looking for the percent so that's your x. X over 100=7 over 25. Cross multiply to get 25x=700. Divide both sides by 25 and your answer is 28%

4 0

3 years ago

4m (2mn-8m) +3n (5n-6mn) please help me​

4m (2mn-8m) +3n (5n-6mn) please help me