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Aloiza [94]
3 years ago
8

Please do number 19 for me.

Mathematics
2 answers:
Natalka [10]3 years ago
8 0

Answer:

x = 9

angle \: abc = 8x + 6x + 6x \\   20x = 180  \\ x =  \frac{180}{20}  \\  x= 9

plzz \: \:  mark \: as \: brainliest

dedylja [7]3 years ago
4 0
Angles in triangle add to 180 degrees
20x=180
x=9
Angle ABC is the top one
8x9=72
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(05.07 MC)
sp2606 [1]
Given that the net of the square pyramid is as shown above, the surface are of the pyramid will be given by:
SA=(number of triangles)*(area of triangle)*(area of square base)
area of one triangle will be:
A=1/2*base*height
A=1/2*0.8*0.75
A=0.3 sq. inches

area of the square base will be:
A=0.75*0.75
A=0.5625
Therefore the surface area will be:
SA=4*0.3*0.5625
SA=0.675 sq. inches
5 0
3 years ago
Mike can stitch 7 shirts in 42 hours. He can stitch 1 shirt in hours, and in 1 hour he can stitch of a shirt.
lions [1.4K]
He can stitch 1 shirt in 6 hours and 6/10 of a  shirt in 1 hour.
8 0
4 years ago
Read 2 more answers
Grace bought a television for $329 and some
Juliette [100K]

Answer:

The number of DVD's is 6.

Step-by-step explanation:

Given:

Grace bought a television for $329.

Some  DVDs for $5.75 each.

She spent total of $363.50

Now, to find out the number of DVD's Grace bought.

Let the number of DVD's be x.

So, cost of DVD's  =5.75x

Cost of television = $329.

Total amount spent = $363.50.

According to question:

Now, putting the equation to solve:

329+5.75x=363.50

<em>Subtracting with 329 on both sides we get:</em>

5.75x=34.50

<em>Dividing both sides by 5.75 we get:</em>

x=6.

Therefore, the number of DVD's is 6.

8 0
3 years ago
The density of pure solid copper is 8.94 g/mL. What volume does 5 kg of copper occupy. Please help
mel-nik [20]


<u><em>Density= Mass divided by Volume</em></u>, but you're trying to find Volume so you apply Algebra and get <u><em>Volume= Mass divided by Volume.</em></u>

Volume= 0.5592841163 [kg/m (power to the 3)]

You should round it up

5 0
4 years ago
Mari adds 4 spoons of honey to a pitcher of iced tea. Each spoonful holds 5 mL of honey How many mL of honey does Mari have in a
weeeeeb [17]

Alright, lets get started.

Mari adds 4 spoons of honey to a pitcher.

Each spoonful holds 5 mL of honey.

So, total ML of honey mari adds = 4 spoon * 5 ML = 20 ML

Answer : 20 mL of honey does Mari have in all.

Hope it will help :)

8 0
3 years ago
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