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sergij07 [2.7K]
3 years ago
6

The pH scale measures how acidic or basic a substance is. Lemon juice is said to have a pH of less than 4 and greater than 1.5.

Model the normal range of pH values of lemon juice, using a compound inequality.
1.5 > x > 4
1.5 < x < 4
1.5 ≤ x ≤ 4
1.5 ≥ x ≥ 4
Mathematics
1 answer:
aev [14]3 years ago
4 0

Answer:

this is an example

Step-by-step explanation:

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Pearl uses 9.8 pints of blue paint and white paint to paint her bedroom walls. 2 5 of this amount is blue paint, and the rest is
Ratling [72]

Answer:

She use <u>5.88 pints</u> of white paint.

Step-by-step explanation:

Given:

Pearl uses 9.8 pints of blue paint and white paint to paint her bedroom walls. \frac{2}{5} of this amount is blue paint, and the rest is white paint.

Now, to find the pints of white paint she use.

Pearl uses total pint of paint = 9.8 pints.

The amount of blue paint

= \frac{2}{5}\ of\ 9.8\ pints.

= \frac{2}{5} \times 9.8

= \frac{19.6}{5}

= 3.92\ pints.

Thus, the amount of blue paint = 3.92 pints.

Now, to get the white paint we subtract the amount of blue paint from  the total pint of paint:

9.8-3.92\\\\=5.88\ pints.

Therefore, she use 5.88 pints of white paint.

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