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ohaa [14]
2 years ago
8

In the expression (21 – 3) X (7 + 2) = (12 - 4), what operation should you perform last? Why?

Mathematics
2 answers:
meriva2 years ago
5 0

Answer:

Substraction

Step-by-step explanation:

(21-3)x(7+2)=(12-4)

1. 18 x 9 = 12-4

2. 162-8 = 8-8

3. 162-8 = 154

lys-0071 [83]2 years ago
4 0

Answer:

The solution is False because there is no solution to the equation

Step-by-step explanation:

(21-3)×(7+12)= (12-4)

First, remove the brackets

18×19=8

Then, Multiply

342=8

SOLUTION is False

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3 years ago
87.5% of what number is 49?
kozerog [31]
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7 0
3 years ago
500 portions of strawberries have been ordered for the tournament, but because of bad weather only
Citrus2011 [14]

We conclude that 375 portions can be sold.

<h3>How many portions can be sold?</h3>

We know that 500 portions have been ordered, but only 5/6 of that was delivered, so the number of delivered portions is:

p = (5/6)*500 = 416.6

Which we can round to the next whole number, 417.

Now we know that 10% of these are given to the players and staff, then the number of portions that can be sold is the 90% of 417, which is:

N = 417*(90%/100%) = 417*0.9 = 375

We conclude that 375 portions can be sold.

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8 0
1 year ago
If c(x)=5/x-2 and d(x)=x+3, what is the domain of (cd)(x)?
pickupchik [31]

Answer:

The domain is all Real x except x = 2 .

Step-by-step explanation:

(cd)(x) = ( 5 / x-2) * x+3

=  5(x+3)/(x-2)

The domain is all Real x except x = 2 .

(because when x = 2 (cd)(x) is undefined).

3 0
3 years ago
Vertex of y=5x^2-10x+1
kirill [66]
Convert to vertex form:-

y = 5(x^2 - 2x) + 1

y = 5[(x - 1)^2 - 1] + 1

y = 5(x - 1)^2  - 4


vertex is (1, -4)
4 0
3 years ago
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