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kotykmax [81]
3 years ago
10

Which is a solution of the equation? 2x-y=5 1. (1,2) 2. 7 3. (3,-1) 4. (2,-1)

Mathematics
2 answers:
MAVERICK [17]3 years ago
7 0
Just plug the x and y values in, if you do so, you would see that the answer is (2,-1)
vfiekz [6]3 years ago
3 0
(2,-1) i think that's the anwser
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Bill and Joe leave their house at the same time heading in opposite directions. If Bill is driving three times faster than Joe a
Arisa [49]

The problem statement gives you the relationship between their speeds, and it gives you information you can use to find their total speed. You solve this by finding the total speed, then the proportion of that belonging to Bill.

The total speed is (120 mi)/(3 h) = 40 mi/h.

The speed ratio is ...

... Bill : Joe = 3 : 1

so the speed ratio Bill : Total is ...

... 3 : (3+1) = 3:4.

Bill's speed is (3/4)×(40 mi/h) = 30 mi/h.

4 0
4 years ago
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7 0
2 years ago
Bob says that when he multiplies (x+3) (x-3) he gets x^2-6x-9 is he correct explain
almond37 [142]
(x+3)(x-3)
x*x=x^2
x*-3=-3x
3*x=3x
3*-3=-9

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x^2-3x+3x-9

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5 0
3 years ago
Find the value of y. images attached.
telo118 [61]

Answer:

<h3>The answer is option D</h3>

Step-by-step explanation:

Since it's a right angled triangle we can use trigonometric ratios to find the value of y

To find the value of y we use tan

\tan(28)  =  \frac{y}{35}  \\ y = 35 \tan(28)  \\ y = 18.6098301...

We have the final answer as

<h3>18.61</h3>

Hope this is helps you

5 0
3 years ago
The actual length of a soccer field is 300 feet. If the width of the field is 180 feet, then what should the width of the scale
topjm [15]

Answer:

2160 inches

Step-by-step explanation:

The actual length of a soccer field is 300 feet. If the width of the field is 180 feet, then what should the width of the scale drawing be in inches?

1 foot = 12 inches

Width of the field = 180 feet

Hence:

1 foot = 12 inches

180 feet = x

x = 180 × 12 inches

x = 2160 inches

Width of the scale drawing in inches = 2160 inches

6 0
3 years ago
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