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Novay_Z [31]
3 years ago
10

What is 15= 3x - 15 Like the process step by step

Mathematics
2 answers:
grandymaker [24]3 years ago
4 0

Answer:

X= -10

Step-by-step explanation:

15=3x-15

Minus the numbers on the other side of the variable

15=3x-15

-15      -15

=0       -30

In algebra the - before a number gets counted as a negative so -15 minus 15 = -30

Then since we still have 3x we divide it by -30 because its being tiems by a number we cant see

so -30/3 = -10

Thats how we found X.

kotykmax [81]3 years ago
3 0

Answer:

Solve for x

Step-by-step explanation:

we already know that 30 minus 15 is 15 so something times 3 equals 30. 10x3=30. so x = 10.

15 =3(10)-15

15= 3(10) -15 =30 -15

15 = 30 - 15

15=15

So, again, the answer is 10.

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A triangle was dilated by a scale factor of 6. If sin aº
Pavlova-9 [17]

Answer:

24 units

Step-by-step explanation:

A triangle was dilated by a scale factor of 6. If sin a° = four fifths and segment DE measures 30 units, how long is segment EF?

triangle DEF in which angle F is a right angle, angle D measures a degrees, and angle E measures b degrees

15.5 units

24 units

30 units

37.5 units

From the description:

angle D measures a degrees

opposite to angle D is side EF

side DE (which measures 30 units) is the hypotenuse of the triangle.

We also know that

\sin (a) = \frac{4}{5}

\sin (a) = \frac{opposite}{hypotenuse}

From definition:

\sin (a) = \frac{opposite}{hypotenuse}

Replacing:

\frac{4}{5} =\frac{ EF}{DE} \\\\EF = \frac{4}{5} *DE\\\\EF = \frac{4}{5} *30 \\\\= 24 units

8 0
3 years ago
What is the value of t?
frutty [35]

Answer:

-39 2/3

Step-by-step explanation:

t - 122= 2t - 3

subtract 't' from each side to get:

-122 = 3t - 3

add 3 to each side to get:

-119 = 3t

divide each side by 3 to get:

t = -39 2/3

5 0
2 years ago
14/38 simplified? Thanks!
ira [324]
14/38 simplified would be 7/19
5 0
3 years ago
1 liter is equal to how many cubic centimeters?​
Alika [10]

Answer:

1000

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Order these numbers from least to greatest. 7.63, 7.6032, 7.6, <br>​
Komok [63]

Answer:

7.6032,7.63,7.6

Sorry if I am wrong.

Step-by-step explanation:

7 0
3 years ago
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