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2 years ago

Solve this problem and show the steps please because I’m so confused

Mathematics

1 answer:

marishachu [46]2 years ago

6 0

Answer:

= 12

Step-by-step explanation:

{ 3 × $3^{2}$ - 3 } -3 × 4

Solve the brackets first

{3 × 9 - 3 } -3 × 4

{ 27 -3 } -3 × 4

24 - 3 × 4

24 - 12

= 12

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2 years ago

Select all equations that have at least one integer solution.

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2 years ago

Write the phrase as an expression. Then evaluate when y=20.

alisha [4.7K]

Answer:

$Q=\frac{40}{y-16}$

$Q=10$

Step-by-step explanation:

Let the quotient be represented by 'Q'.

Given:

The difference of a number 'y' and 16 is $y-16$

Quotient is the answer that we get on dividing two terms. Here, the first term is 40 and the second term is $y-16$ . So, we divide both these terms to get an expression for 'Q'.

The quotient of 40 and $y-16$ is given as:

$Q=\frac{40}{y-16}$

Now, we need to find the quotient when $y=20$ . Plug in 20 for 'y' in the above expression and evaluate the quotient 'Q'. This gives,

$Q=\frac{40}{20-16}\\Q=\frac{40}{4}=10$

Therefore, the quotient is 10, when the value of 'y' is 20.

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3 years ago

A fish swims at a speed of 12 miles per hour. A boy swims at a speed of 4.4 feet per second. 3 ft = 1 yd 5280 ft = 1 mi How much

just olya [345]

You'll need to convert both speeds into yards per minute.

12 mph = 12 mph 1760 yd 60 min
---------- * ------------ * ----------
1 mile 1 hr

Note that "miles" cancels. So does "hours." Finish this work.

Then convert 4.4 ft/sec into yards per minute.

Then, finally, compare your two rates via subtraction of the smaller from the larger.

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3 years ago

Read 2 more answers

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madreJ [45]

Answer:

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Step-by-step explanation:

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2 years ago