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4 years ago

What is the proportion of 3/5=7/x

Mathematics

2 answers:

otez555 [7]4 years ago

8 0

The answer is x equal 11.5

Sloan [31]4 years ago

5 0

3/5=7/x multiply both sides by x

3x/5=7 multiply both sides by 5

3x=35 divide both sides by 3

x=35/3 or if you prefer 11 2/3

You might be interested in

Make b the subject of the formula a = square root b+6

dexar [7]

Answer:

b = (a - 6)^2

Step-by-step explanation:

Solve for b:

a = sqrt(b) + 6

a = sqrt(b) + 6 is equivalent to sqrt(b) + 6 = a:

sqrt(b) + 6 = a

Subtract 6 from both sides:

sqrt(b) = a - 6

Raise both sides to the power of two:

Answer: b = (a - 6)^2

6 0

3 years ago

10. What is the value of x? 105° 148° x

Ostrovityanka [42]

Answer:

Step-by-step explanation:

The supplement of 105 = 180 - 105 = 75

The supplement of 148 = 180 -148 = 32

x is the sum of these two angles

x = 32 + 75

x = 107

Exterior angles are the sum of the 2 angles not connect to the exterior angle you are trying to find.

4 0

3 years ago

Hey can I get the answer key for this I don't understand

ahrayia [7]

Answer: i dont have the answer key but i did answer them for you

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Refer to image below

il63 [147K]

Answer:

A ≈ 40°

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtract Property of Equality

Trigonometry

[Right Triangles Only] SOHCAHTOA
[Right Triangles Only] sinθ = opposite over hypotenuse

Step-by-step explanation:

Step 1: Identify

Angle θ = A

Opposite Leg = 27

Hypotenuse = 42

Step 2: Solve for A

Substitute [sine]: sinA = 27/42
Simplify: sinA = 9/14
Trig inverse: A = sin⁻¹(9/14)
Evaluate: A = 40.0052°
Round: A ≈ 40°

5 0

3 years ago

___________________________Please help?

ludmilkaskok [199]

The expression $27x^{4} +15x^{3} +53x^{2}$ is called as option d) Quartic Trinomial.

Step-by-step explanation:

The given expression is $27x^{4} +15x^{3} +53x^{2}$ .

To find the number of terms :

one-term polynomial is called a monomial
two-term polynomial is called a binomial and
three-term polynomial is called a trinomial

"The number of terms in the expression is Three."

The three terms are as follows :

⇒ First term is $27x^{4}$

⇒ Second term is 15x³

⇒ Third term is 53x²

Therefore, the given expression is called a "trinomial" with respect to the number of terms in it.

To find the degree :

The degree of a polynomial is the highest of the degrees of the individual terms in it with non-zero coefficients.

Here, in this expression $27x^{4} +15x^{3} +53x^{2}$ the highest degree is 4.

Fourth degree is known as "Quartic".

Now, combining the number of terms and degree in the given expression, it is known as "Quartic Trinomial" which is option D).

7 0

3 years ago