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3 years ago

PLEASE HELP DUE AT 2 PM!!!!

Mathematics

2 answers:

boyakko [2]3 years ago

6 0

Step-by-step explanation:

BASARILAR...

......

GOOD BYE

Alex Ar [27]3 years ago

4 0

Answer:

$x = -6$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Step-by-step explanation:

Step 1: Define

$x - 2 = \frac{5x - 2}{4}$

Step 2: Solve for x

Multiply 4 on both sides: $4(x - 2) = 5x - 2$
Distribute 4: $4x - 8 = 5x - 2$
Subtract 4x on both sides: $-8 = x - 2$
Add 2 on both sides: $-6 = x$
Rewrite: $x = -6$

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If x varies jointly as y and z,and x=8 when y=4 and a=9,find z when x=16 and y=6

Luda [366]

Answer:

z=12

Step-by-step explanation:

It is given that x varies jointly as y and z, it means

$x\propto yz$

$x=kyz$

$x(y,z)=kyz$

where, k is the constant of proportionality.

It is given that x=8 when y=4 and z=9

$(8)=k(4)(9)$

$8=36k$

Divide both sides by 36.

$\frac{8}{36}=k$

$\frac{2}{9}=k$

The value of k is 2/9.

$x=\frac{2}{9}yz$

We need to find the value of z when x=16 and y=6.

Substitute x=16 and y=6 in the above equation.

$16=\frac{2}{9}(6)z$

$16=\frac{4}{3}z$

Multiply both sides by 3.

$48=4z$

Divide both sides by 4.

$12=z$

Therefore, the value of z is 12.

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4 years ago

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