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4 years ago

What is the solution of 3x + 5 = 2x – 7?

Mathematics

1 answer:

Schach [20]4 years ago

5 0

Answer:

the x-coordinates of the intersection point of the lines y = 3x + 5 and y = 2x – 7

Step-by-step explanation:

When you set two equations or functions equal to each other that is saying you want to know when the graphs intersect. So the y and x intercept don't matter, unless you combined the terms like this.

3x + 5 = 2x – 7

x + 12 = 0 then that terms x intercept woudl be the x coordinate of the intersection of the other two terms. But remember, this is onlyif you combines the two functions.

Of your options you just want the ones dealing with the intersection point. And of those two we are plugging in x, so we want the x coordinate.

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HELP ME PLEASE

Arada [10]

Answer:

if you toss a dice 30 times, you will roll a two 5 times.

Step-by-step explanation:

If you toss a dice once, the probability of rolling a 2 is 1/6, like you said.

So if you multiply your chances of rolling a 2 by 30, you get;

30.1/6 = 30/6 = 5

5 0

3 years ago

5. While bird watching, Gabrielle saw 6 robins and 3 blue jays.

Semenov [28]

Answer:

Neither. They both saw the same amount of birds.

Step-by-step explanation:

Gabrielle saw 9 birds, but so did Chase. 6+3 is 9. 3+6 is also 9. The commutative property of addition states that a+b=b+a.

4 0

4 years ago

What is 9/12 simplified

Assoli18 [71]

9 and 12 have a common factor of 3 so 9/12 = 3/4

7 0

3 years ago

Read 2 more answers

In ΔABC, BC = 4 centimeters, m∠B = m∠C, and m∠A = 20°. What is AC to two decimal places?

ipn [44]

M<A = 20°
m0°

Law of Sines , in any triangle we have
a/sin A = b/sin B = c/sin c

4/sin20 = AC/sin80 = AB/sin80

now we can solve AC

4/sin20 = AC/sin80
AC = 4 (sin80)/ sin20
AC = 4(0.98) / (0.34)
AC = 3.92 / 0.34
AC = 11.52

answer

C.11.52 centimeters

5 0

3 years ago

Read 2 more answers

Darren can get to work in 30 minutes. the speed limit is 35 mph, but there are three stop lights. with the traffic and lights, h

Radda [10]

To solve this problem you must apply the proccedure shown below:
1. You have that Darren can get to work in $30 minutes$ and with the traffic and lights, he can average $30 mph$ .Therefore, you must apply the formula for calculate the distance, which is:
 $d=Vt
$ 
Where $V$ is the speed and $t
$ is the time.
2. The time in hours is:
 $30 min=1/2 h
$ 
3. Substituying values, you have:
 $d=(30 mph)(1/2 h) \\ d=15 miles$
 The answer is: $15 miles$

3 0

3 years ago