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Morgarella [4.7K]
3 years ago
5

Zahara constructs 5 mirror frames in 30 minutes. At that rate, how many mirror frames can Zahara make in 9 hours

Mathematics
1 answer:
NARA [144]3 years ago
6 0

Answer:

90 mirrors

Step-by-step explanation:

If 5 mirrors=30 mins

then x=9 hrs

therefore 30÷60 to covert it to hours is equal to 0.5hr

5×9hrs÷0.5hr=90

therefore x=90

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Twenty seven minus 4 times a number is equal to 3 times the number minus 29
Ugo [173]

Answer:

27- 4x = 3x - 29

Step-by-step explanation:

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4 years ago
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Each pack cost 3. he spent a total of 18 on gum. how many packs of gum did he buy.
TEA [102]

Answer:

So to figure that out you would take the money that he spend which was 18, each pack of gum cost 3, so to figure out the question you would simply divide 18 by 3 which would give you 6.

so how would you check that answer you could take 6 and multiple by the cost of each pack which would give you 18.

so answer is 6.

Step-by-step explanation:

18/3

=6

7 0
3 years ago
Rewrite it as a function and isolate Y. ​
hodyreva [135]

Answer: y= -2x + 12

or f (y ) = 6 - \frac{y}{2}

Step-by-step explanation:

just subtract the 2x to get the y alone

8 0
3 years ago
Write the sum of 83 and<br> a numbers in a mathematical <br> atical way.
vaieri [72.5K]

Answer:

83 + n

Step-by-step explanation:

The sum of 83 and a number would be 83 + n as an expression, where n is "said number".

6 0
4 years ago
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125x^3-27 factor polynomials
vampirchik [111]

Answer:

The answer is (5x - 3) (25x² + 15x + 9)

Step-by-step explanation:

125x³ - 27

5 × 5 × 5 × x × x × x - 3 × 3 × 3

Rewrite 125x³ as (5x)³.

(5x)³ - 27

Rewrite 27 as (3)³.

(5x)³ - (3)³

Here, Both terms are <em>perfect cubes, factor</em> using the difference of cube formula,

<em>a³ - b³ = (a - b) (a² + ab + b²)</em>

where,

a = 5x

b = 3

Now,

(5x - 3) [(5x)² + (5x)(3) + (3)²]

Now, Simplify

(5x - 3) (25x² + 15x + 9)

Thus, The answer is (5x - 3) (25x² + 15x + 9)

<u>-TheUnknownScientist</u><u> 72</u>

4 0
3 years ago
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