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Lera25 [3.4K]
3 years ago
11

What is another way to write 9 times 200

Mathematics
2 answers:
NemiM [27]3 years ago
8 0
200 times 9 or 200×9
Allisa [31]3 years ago
8 0

<u>Answer</u>

200 × 9


<u>Explanation</u>

Multiplication is commutative. For example a × b = b × a.

This means they give the same result.

∴ 9 × 200 = 1800

  200 × 9 = 1800.

The other way of writing 9 × 200 is 200 × 9.

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Five students wrote a mathematics test. The average mark was 68. If the marks for four of the students were 75, 62, 84 and 53, t
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Answer:

66

Step-by-step explanation:

Use the formula for the mean of a set of numbers:

                  sum of the numbers

average = --------------------------------

                     count of numbers

Here we know that the average mark was 68, so we can write:

               

                           75 + 62 + 84 + 53 + x

average = 68 = ----------------------------------

                                           5

or                            274 + x

                  68 = -------------------

                                    5

Solving for x, we multiply both sides by 5:     340 = 274 + x.

Subtracting 274 from both sides effectively isolates x:

 340 = 274 + x

- 274    -274

------------------------

  66      =    x

The fifth student's mark was 66.

4 0
3 years ago
A car traveling at constant speed traveled 161.5 miles in 3 1/2 hours. What was the car's speed.
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161.5 miles / 3.5 hrs = 46.143 mph

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3 years ago
The sale price S (in dollars) of an item is given by the formula S=L−rL, where L is the list price (in dollars) and r is the dis
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The sale price S (in dollars) of an item is given by the formula

S=L−rL , where L is the list price (in dollars) and r is the discount rate.

Since, S = L -rL

rL = L -S

r = \frac{L-S}{L}

r = 1-\frac{S}{L}

Since, the listed price of the shirt is $30, we have to find the discount rate.

Therefore, r = 1-\frac{S}{30} is the discount rate.

7 0
3 years ago
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Answer:

Step-by-step explanation:

Distance traveled by Talia = x

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Daily budget = $94

Inequality,

30 + 0.2x ≤ 94

Solution:

0.2x ≤ 94 - 30      

0.2x ≤ 64        {Divide both sides by 0.2

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