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Degger [83]
2 years ago
15

Answerrrrrrrrrrrr plzzzzzzzzzzz

Mathematics
1 answer:
erastova [34]2 years ago
5 0
Since those lines are parallel, those two angles are equal. Therefore:
3x+15=105
3x=90
x=30
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Sound travels through sea water at a speed of about 1500 meters per second. At this rate, how far will sound travel in 2 minutes
Mariulka [41]

Answer:

180,000 m

Step-by-step explanation:

There are 60 seconds in a minute, so:

2 min × 60 s/min = 120 s

Distance = rate × time

d = 1500 m/s × 120 s

d = 180,000 m

8 0
3 years ago
Kari has a box with brand new pencils that are all the same size. She has 1 yellow pencil, 5 blue pencils, and 5 red pencils. Sh
babymother [125]

Answer:

(5/11)(1/10)

Step-by-step explanation:

probability of picking blue = 5/11

Now there are only 10 pencils

probability of picking yellow = 1/10

probability of picking blue, then yellow = (5/11)(1/10) = 1/22

4 0
3 years ago
PLS ANSWER THIS ASAP WILL MARK BRAINLIEST!!!!
Morgarella [4.7K]

Answer:

x=27

Step-by-step explanation:

The formula for the volume of a pyramid is L*W*H/3

We know all three, being x, x, and x/9

So after we plug those in, we see that x^3/27 = 27

then solving for x we get √27*27 which is 27

Please Vote me brainly, it really helps, and i hope i helped you.

5 0
3 years ago
Kevin plans to put concrete on a rectangular portion of his driveway the portion is 10 feet long and 3 inches high the price of
Fudgin [204]
First we need to know the total volume of concrete used:
V_total = \frac{cost_{total}}{cost{unit}}
V_total = \frac{\$72.98}{\frac{\$90}{yd^{3}}}
V_total = 0.7407yd^{3}

Now we can use the formula for volume of a rectangular prism:
V=lwh
Convert everythig to yards and substitute: 
0.7407yd^{3}=(3.33yd)(w)(0.08333yd)
w=\frac{0.7407}{3.33 \times 0.08333}
w \aprox 2.66yd
5 0
3 years ago
Hello, can someone explain/answer these?<br> You don't have to do both of them
MissTica

Answer:

#1= 5x5=25

25x the amount of squares= 25x6= 150cm^2

#2=  1.5x2.6= 3.9ft.

3.9xamount of right angle triangles= 3.9x8=31.2ft^2

(^2 means squared)

4 0
2 years ago
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