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steposvetlana [31]
2 years ago
9

I need help rn.................

Mathematics
1 answer:
rosijanka [135]2 years ago
5 0

Answer:

Alex has £44

Pierre has £66

Step-by-step explanation:

P = A + 20

P+ 22 = 2A

solve for A

plug in p

(A + 20) + 22 = 2A

A + 44 = 2A

subtract A from both sides

44 = A

solve for P

plug A in

P = 44 +22

P = 66

Pls give brainlyist

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Black_prince [1.1K]

Answer:

$3

Step-by-step explanation:

Given that:

Price of each comb = $x

15 combs were purchased in = $(15x-45)

To find:

Amount of discount offered on each comb.

Solution:

First of all, let us calculate the price of 15 combs at the price of $x each.

Original Price of 15 combs = Price of one comb \times Number of combs = $15x

Now, there is some discount provided on the purchase of 15 combs.

Discount offered on 15 combs = Original price of 15 combs - Discounted price of 15 combs = 15x- (15x-45) = $45

Discount offered on each comb = Discount on 15 combs divided by 15

Discount offered on each comb = \frac{45}{15} = <em>$3</em>

4 0
3 years ago
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skad [1K]

Answer:

<h2>3. If a ≥ b, then a + c ≥ b + c </h2><h2>4. If c > d, then a– c < a – d</h2>

Step-by-step explanation:

The inequalities 3 and 4 are the right ones, because they are actually properties of inequalities.

The other choices aren't correct. For example, the first choice: a – b < a + b, it's not true, because you must apply the same change at each side of the inequality, otherwise you'll ruin the expression.

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8 0
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topjm [15]

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Cross multiply: top of one side multiplied by bottom of other side:

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Divide both sides by 5:

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Answer:

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Step-by-step explanation:

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