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3 years ago

Please help me!! solve 31 = x + 25.5

Mathematics

2 answers:

serious [3.7K]3 years ago

6 0

Answer:

x = 5.5

General Formulas and Concepts:

Pre-Algebra

Equality Properties

Step-by-step explanation:

Step 1: Define

31 = x + 25.5

Step 2: Solve for x

Subtract 25.5 on both sides: 5.5 = x
Rewrite: x = 5.5

notsponge [240]3 years ago

5 0

Answer:

X = 11/2

Step-by-step explanation:

hope this helps and have a safe and joyful holiday

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In a mapping diagram each _____ corresponds to an ordered pair. A.) input value B.)relation C.)arrow D.)output value

Lilit [14]

The answer is c. relation

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3 years ago

Two sides of a right triangle have the lengths 4 and 5. What is the product of the possible lengths of the third side? Express t

marishachu [46]

Answer:

19.2

Step-by-step explanation:

1st Case:

4 and 5 are legs of the right triangle.

Using the pythagorean therom: a^2+b^2=c^2

We can say that 4^2+5^2=x^2

16+25=x^2

41=x^2

x=√41

√41 is about 6.4

x=6.4

2nd Case

5 is the hypotenuse of the right triangle and 4 is the legs.

Using the pythagorean therom: a^2+b^2=c^2

We can say that 4^2+x^2=5^2

16+x^2=25

x^2=9

x=3

Final Step

We need to multiply the two possible lengths for x. So for case 1 the length of x was 6.4 and for case two the length was 3. 6.4*3=19.2

Anwser: 19.2

6 0

3 years ago

If y =3x-5,and x=5 then y ???

inn [45]

The answer is y equals 10

5 0

3 years ago

Seven less than the product of a number and 10 is 50

Veseljchak [2.6K]

product of a number and 10: 10n
Seven less than the product of a number and 10: 10n - 7
so
Seven less than the product of a number and 10 is 50:
10n - 7 = 50
----------------------------
if you need to find the number n then
10n - 7 = 50
10n = 57
n = 57/10
n = 5.7

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3 years ago

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bixtya [17]

Answer:

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B. 4

C. 1

D. 2

Step-by-step explanation:

Consider all equations:

A. $y=x^2 -6x+8$