All categories

3 years ago

ABC is a straight line.

Mathematics

1 answer:

Akimi4 [234]3 years ago

8 0

Answer:

Step-by-step explanation:

What is known....AC=75 AB=4 times BC AB+BC=AC

4(BC)+BC=75 Add like numbers

4(BC)+BC=5BC

5(BC)=75 get the variable(BC) alone by dividing both sides by the number(5)

5(BC)/5=75/5 Then simplify....5(BC)/5=(BC) and 75/7=15

(BC)=15

You might be interested in

Here 1 more than BIG PRIZE

Firlakuza [10]

Hey there! :D

Use the distributive property.

a(b+c)= ab+ac

6(9x+2)+2x

54x+12+2x

56x+ 12 <== equivalent expression

I hope this helps!
~kaikers

4 0

3 years ago

What is the value of x

Len [333]

Answer:

X=70

Step-by-step explanation:

Interior angles of parallel line sum up to be 180° so:

45+(2x-5)=180

45+2x=185

2x=140

x=70

3 0

3 years ago

Help ..........................................

nalin [4]

Answer:

c. 45d+.25m

Step-by-step explanation:

3 0

3 years ago

Two angles of a quadrilateral are of measures 75° and 117° respectively and the other two angles are equal find the measure of e

insens350 [35]

<u>Answer:</u>

<u>Step-by-step explanation:</u>

The sum of interior angles of a quadrilateral is 360°.

If we consider the measure of one of the unknown angles to be $x$ °, we can set up the following equation:

$x + x + 75^\circ + 117^\circ = 360^\circ$

Now we can solve for $x$ :

⇒ $2x + 192^\circ = 360^\circ$

⇒ $2x = 360^\circ - 192^\circ$ [subtracting 192° from both sides]

⇒ $2x = 168^\circ$

⇒ $x = \frac{168^\circ}{2}$ [dividing both sides by 2]

⇒ $x = \bf84^\circ$

Therefore, the other two angles each have a measure of 84°.

4 0

2 years ago

Sure Fire Auto Supplies marked down its entire stock of imported tires 30% on Wednesday only. The sale price of all tires was $7

fiasKO [112]

The answer is $112.86

8 0

4 years ago