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musickatia [10]
3 years ago
8

Tell whether the given equation has the ordered pair as a solution. y=-x -2;(2,-4)

Mathematics
2 answers:
motikmotik3 years ago
4 0
Yes the given equation has the offered pair as a solution
Sophie [7]3 years ago
4 0
Yes, the order pair is a solution
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In a sale there is 25% off all prices. A chair costs £45 in the sale. How much was it before the sale?
garri49 [273]

Answer:

60 pounds

Step-by-step explanation:

Let the normal price be p.  The "25%-off" sale price is then 0.75p, and this 0.75p equals 45 pounds.  Dividing both sides by 0.75 results in p = 60 pounds.

3 0
3 years ago
In a football game, the Bobcats scored all touchdowns, which are worth 7 points each. The Crocodiles scored all field goals, whi
Natalka [10]

Answer: 21points

Step-by-step explanation: 3 times 7 equals 21

8 0
3 years ago
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Two sides of a triangle measure 8 centimeters and 13 centimeters which of the following could not be the length of the third sid
SOVA2 [1]
The answer is A because 13-9 equals 4
3 0
3 years ago
Who’s right? And why?
kvasek [131]

Answer: Raymond is correct

The DJ charges $75 an hour.

=================================================

Explanation:

x = number of hours

y = total cost

The DJ does a 3-hour event for $275. This means one point is (x,y) = (3,275)

Another point is (5,425) because a 5-hour event costs $425.

Let's find the slope of the line through these two points.

(x_1,y_1) = (3,275) \text{ and } (x_2,y_2)  = (5,425)\\\\m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}}\\\\m = \frac{425 - 275}{5 - 3}\\\\m = \frac{150}{2}\\\\m = 75\\\\

The slope is 75, meaning that each time y goes up by 75, x goes up by 1.

Flipped around it means each time x goes up by 1, y goes up by 75.

This means each time we add on an extra hour, the cost goes up by $75.

The DJ charges $75 an hour. Raymond is correct.

3 0
2 years ago
The large sphere has a diameter of 20 feet. Which expression represents the volume, in cubic units, of the shaded part of the sp
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<span>the answer is b. π(10^3) – π(4^3)</span><span>                                                       </span>
3 0
3 years ago
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