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Alenkasestr [34]
2 years ago
11

30,000=______x10cubes

Mathematics
2 answers:
Mars2501 [29]2 years ago
6 0

Answer:

  • Take away one zero.
  • Hence you get 3000
Mariulka [41]2 years ago
3 0
If you’re saying it’s 10 cubed (which is 1000), the the answer would be
30x 10 cubed :)
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Which of the following expressions represents 3 less than 5 times a number
alina1380 [7]

Answer:

A)

Step-by-step explanation:

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2 years ago
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A chef is going to use a mixture of two brands of Italian dressing. The first brand contains 7 vinegar, and the second brand con
SOVA2 [1]

Answer:

78 ml of 7% vinegar and 312 ml of 12% vinegar.

Step-by-step explanation:

Let x represent ml of 7% vinegar brand and y represent ml of 12% vinegar brand.    

We have been given that chef wants to make 390 milliliters of the dressing. We can represent this information in an equation as:

x+y=390...(1)

y=390-x...(1)

We are also told that 1st brand 7% vinegar, so amount of vinegar in x ml would be 0.07x.

The second brand contains 12 vinegar, so amount of vinegar in y ml would be 0.12y.

We are also told that the chef wants to make 390 milliliters of a dressing that is 11% vinegar. We can represent this information in an equation as:

0.07x+0.12y=390(0.11)...(2)

Upon substituting equation (1) in equation (2), we will get:

0.07x+0.12(390-x)=390(0.11)

0.07x+46.8-0.12x=42.9

-0.05x+46.8=42.9

-0.05x+46.8-46.8=42.9-46.8

-0.05x=-3.9

\frac{-0.05x}{-0.05}=\frac{-3.9}{-0.05}

x=78

Therefore, the chef should use 78 ml of the brand that contains 7% vinegar.

Upon substituting x=78 in equation (1), we will get:

y=390-78

y=312

Therefore, the chef should use 312 ml of the brand that contains 12% vinegar.

4 0
3 years ago
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