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Lemur [1.5K]
1 year ago
14

You multiply a number by 3 subtract 6 then add 2 the results is 20 what's the number

Mathematics
1 answer:
e-lub [12.9K]1 year ago
5 0

You multiply a number by 3 subtract 6 then add 2 the results is 20

what's the number​ ?

Let the number = x

multiply a number by 3

so, it becomes 3x

subtract 6 , so, 3x - 6

then add 2

so, 3x - 6 + 2

The result will be 20

So,

3x - 6 + 2 = 20

solve for x

3x - 4 = 20

Add 4 to both sides

3x - 4 + 4 = 20 + 4

3x = 24

Divide both sides by 3

3x/3 = 24/3

So,

x = 8

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Sherman is training for his bike.He rides his bike 6 1/4 miles in 1/3 hour.What is sherman’s rate in miles per hour
Katen [24]
Sherman’s rate would be 17 1/4 miles per hour
5 0
2 years ago
The mathematics department of a college has 7 male​ professors, 6 female​ professors, 12 male teaching​ assistants, and 7 female
Natalka [10]

Answer:

0.78125 or 78.125%

Step-by-step explanation:

Male professors = 7

Female professors = 6

Male T.A. = 12

Female T.A. = 7

Number of people in the department = 32

The probability that the selected person is a professor or a male is given by the probability that the person is a professor added to the probability that the person is a male, minus the probability that the person is a male professor:

P( P\ or\ M) = P(P) +P(M) - P(P\ and\ M)\\P( P\ or\ M) =\frac{7+6}{32}+ \frac{7+12}{32}- \frac{7}{32} \\P( P\ or\ M) = 0.78125 = 78.125\%

The probability is 0.78125 or 78.125%

6 0
2 years ago
360 increased by 20% decreased by 50
castortr0y [4]
370

20%= 0.2

0.2(360)=72

360+72=432

432-50=382
8 0
3 years ago
What is the solution to this equation? 3(d+2)−12=d−2
alekssr [168]
3(d+2)-12 = d-2
3d +6 -12 = d - 2
3d-d = 12 - 6 - 2

2d = 4
d = 2
3 0
3 years ago
Read 2 more answers
Please help me! Which congruence statement does not necessarily describe the triangle shown if DEF equals FGH?
andre [41]

ΔEDF ≅ ΔFGH in this congruence statement does not necessarily describe the triangle shown if DEF equals FGH, so, ΔEDF ≅ ΔFGH is correct answer.

<h3>What is a Congruent triangles :</h3>

Two triangles are said to be congruent if all three corresponding sides are equal and all the three corresponding angles are equal in measure. These triangles can be slides, rotated, flipped and turned to be looked identical. If repositioned, they coincide with each other.

Based on the given conditions,

Since,

ΔDEF ≅ ΔFGH

Then,

∠FED ≅ ∠HGF

∠EFD ≅ ∠GHF

∠EDF ≅ ∠GFH

Congruent triangles corresponding to equal angles,

Therefore,

ΔEDF ≅ ΔFGH in this congruence statement does not necessarily describe the triangle shown if DEF equals FGH.

To learn more about information visit Congruence triangle :

brainly.com/question/12248294

#SPJ1

7 0
1 year ago
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