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ioda
3 years ago
5

Select the expression that represents the following statement: multiply the difference of 5 and 2 by 7, and then add 6.

Mathematics
1 answer:
kondor19780726 [428]3 years ago
7 0

Answer:

27

Step-by-step explanation:

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33% of what number is 1.45? Round to the nearest tenth.
tatuchka [14]

Take the unknown number as 'y'.

=》33% = 33/100

=》1.45 = 145/100

33/100 × y = 1.45

33/100 × y = 145/100

33y = 145/100 × 100/1

33y = 145

y = 145/33

y = 4.39

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RainbowSalt2222 ☔

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I don’t understand can someone please explain how to work this out and what the answer is
joja [24]

When you see an equation with parenthesis around it, you can use this:

Parenthesis

Exponents

Multiplication

Division

Addition

Subtraction

Otherwise known as PEMDAS.

We can see that in the equation, there are parenthesis, so we can open those. We open parenthesis by taking the number right next to the parenthesis (or outside the parenthesis) and we multiply that number by everything inside. So this is what it would look like:

-2x^2 - 10x + 8

See how the signs changed? This rule only applies when you multiply something, but here is how I think of it:

+ and + always equals +.

- and - always equals +.

- and + always equals -.

+ and - always equals -.

So that's it! Just to be clear, the answer is:

-2x^2 - 10x + 8

Hope I helped, sorry if I'm wrong!

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4 0
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Step-by-step explanation:

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What is an equivalent expression for 3/4 (6+2x)
Alex73 [517]

Answer:

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Step-by-step explanation:

3/4 (6+2x)

Distribute

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