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NemiM [27]
3 years ago
8

9v-3v=12 I need to simplify that answer please help

Mathematics
2 answers:
romanna [79]3 years ago
8 0
9v-3v = 6v divide under 12 you get v=2
hoa [83]3 years ago
4 0

Answer:

v=2

Step-by-step explanation:

9v-3v=12

6v=12

v=2

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A pile of sand has a weight of 90kg.
Elodia [21]

Answer:

52.5 kg ANS

Step-by-step explanation:

Weight of a pile of sand = 90kg

Ratio of weight of sand in three bags = 2:3:7

Let the weight be 2x kg, 3x kg, 7x kg respectively A.T.Q.

= 2x + 3x +7x = 90

= 12x = 90

= X= 90/12

= X = 7.5 kg

Weight of sand in medium bag =

= 3 × 7.5

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I hope this answer is correct

4 0
3 years ago
If two trucks leave a given city on highways making an angle of 132 degrees with one another, traveling at 45 and 55 miles per h
Law Incorporation [45]

Answer:

183 miles to the nearest mile.

Step-by-step explanation:

Distance =Speed X Time

Distance of Truck B from point A=45 X2 =90 miles

Distance of Truck C from point A=55 X2 =110 miles

Angles between them, BAC=132°

We want to find the Distance BC denoted by a between the trucks.

Using Cosine Rule,

a²=b²+c²-2bcCos A

=90²+110²-(2X90X110XCos132°)

=33448.79

a=√33448.79

BC=182.89 miles

The distance between the trucks is 183 miles to the nearest mile.

3 0
3 years ago
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What is the approximate circumference of a circle with radius 3?
mart [117]
I’m guessing C, but I’m not for sure
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3 years ago
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Write a system of equations to describe the situation below, solve using substitution, and fill in the blanks. Quincy and his mo
Vikentia [17]

Step-by-step explanation:

rc = planted rows of carrots

rt = planted rows of tomatoes

h = number of hours

rc = 4h + 1 (starting with 1 already finished row there will be 4 additional rows every hour)

rt = 3h + 8 (staying with 8 already finished rows there will be 3 additional rows every hour).

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when rc = rt, of course.

so,

4h + 1 = 3h + 8

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after 7 hours Quincy and his mom will each have planted 29 rows of vegetables.

8 0
2 years ago
Midpoint of (-8,7) and (-9,11)
olga55 [171]

Answer:

(-8.5,9)

Step-by-step explanation:

((-8+(-9))/2=-8.5

(7+11)/2=9

(-8.5,9)

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3 years ago
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