All categories

3 years ago

Can someone help me please

Mathematics

1 answer:

vovikov84 [41]3 years ago

8 0

X=7

Explanation:

A triangle equals 180°, and they gave us one length already, and it says the one arm of the triangle is equal to the other so we know that the third angle is going to be the same as the second angle.

180=90+(6x+3)+(6x+3)
Combine like terms
180=96+12x
Subtract 96 from both sides
84=12x
Divide 12 by both sides
7=x

Now check it,

90+(6*7+3)+(6*7+3)
90+(45)+(45) =180

You might be interested in

What is 0.01 in standard form

Nimfa-mama [501]

Answer: 0.01 = 10-2 .

Step-by-step explanation: have a good day!

5 0

3 years ago

A group of friends wants to go to the amusement park. They have

Murrr4er [49]

Answer:

Step-by-step explanation: The answer is 6 friends. Assuming that the group is going in one car. Leaving them with 100.5 to spend on admission.You can add the admission fee 6 times until they have nothing left

8 0

2 years ago

The number from the set will make the equation x+4=7.8 true

nikklg [1K]

Answer:

X=3.8 (I may be wrong sry)

Step-by-step explanation:

6 0

3 years ago

Emily begin piano practice at 3:25 she finished at 5:00 how long did she practice

S_A_V [24]

Answer: 1 hour 35 minutes

assuming both times were p.m. or a.m. and not one of each

Step-by-step explanation:

60 minutes in an hour.

3 hours 25 minutes = 205 minutes

5 hours = 300 minutes

300-205 = 95 minutes

95 minutes = 1 hour (60 minutes) and 35 minutes

3 0

3 years ago

Solve 4(2x-3)=6x+2<br> I don't understand the steps pls

Marysya12 [62]

Answer: x = 7

Step-by-step explanation:

4(2x-3) = 6x+2 <--distribute the 4

8x - 12 = 6x + 2 <---add 12 to both sides

8x = 6x + 14 <--- subrtract 6x from both sides

2x = 14 <--- divide by two

x = 7

6 0

3 years ago