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3 years ago

Simplify 3(9y - 2) WILL GIVE BRAINLIST IF FULLY EXAMPLED HELP!

Mathematics

2 answers:

Musya8 [376]3 years ago

5 0

Answer:

27y - 6

Step-by-step explanation:

3(9y - 2) Multiply 3 times each term in the parentheses

3 * 9y = 27y

3 * -2 = -6

Alexxandr [17]3 years ago

3 0

Answer:

Step-by-step explanation:

First, you used distributive property.

Distributive property:

$\sf{a(b-c)=ab-ac}$

Multiply from left to right.

3*9=27

Then 3*2=6.

Remember to use a variable.

Therefore, the correct answer is 27y-6.

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How many Solutions are in the equation 3n(2n-8)=24-6n

neonofarm [45]

Answer:

two (n = 4, and n = -1)

Step-by-step explanation:

Let's solve it as follows:

First, we can divide out the common factor of 3 from each side, to get:

n(2n-8) = 8 -2n

Next, we expand, and move all the terms over to the right hand side (so that we have 0 on the LHS - as this is how we will want to solve the quadratic equation):

2n^2 - 8n - 8 +2n = 0

2n^2 - 6n - 8 = 0.

We also see we can further simplify by dividing out the factor of 2, to get:

n^2 -3n -4. = 0

Next, as this is a quadratic, the usual next step is to factorise, to get:

(n-4)(n+1) = 0

So we see that n = 4 and n = -1 are the two solutions.

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3 years ago

Please can i have help with the question

bija089 [108]

Here is the step by step answer
Hope this helps!
Make sure to give a like and brainliest!

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3 years ago

How do I get help with my math homework

rewona [7]

Just ask a question and people will answer them for u

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3 years ago

Read 2 more answers

Figure ABCD on the coordinate pione below represents Danield's backyard. Each unit

Airida [17]

Answer:

12 meters

Step-by-step explanation:

3 0

3 years ago

Ava bought a 250-ml bottle of concentrated

Reil [10]

Answer:

Ava needs to add 50ml of cleaner.

Step-by-step explanation:

Ratio of cleaner : water = 1:7

This means that the total ratio;(water+cleaner) = 1+7 = 8

Find fraction of each item out of the total ratio of 8;

Fraction of water = $\frac{7}{8}$

Fraction of cleaner = $\frac{1}{8}$

Knowing the fractions, find the quantity of cleaner in <em>ml </em>out of a total of 400-ml;

Cleaner = (1/8 )*400 = 50ml

Therefore, Ava needs to add 50ml of cleaner.

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3 years ago