Answer:
m= -29/18
Step-by-step explanation:
Divide 1 by 20.
1÷20= 0.05
so 1/20 written as a decimal is 0.05
Answer:
Hope it helps.
Step-by-step explanation:
5 million
= 5,000,000
= 5 x 10⁶
300
= 3 x 10²
;)
<3

Solve the following using Substitution method
2x – 5y = -13
3x + 4y = 15


- To solve a pair of equations using substitution, first solve one of the equations for one of the variables. Then substitute the result for that variable in the other equation.

- Choose one of the equations and solve it for x by isolating x on the left-hand side of the equal sign. I'm choosing the 1st equation for now.

- Add 5y to both sides of the equation.


- Multiply
times 5y - 13.

- Substitute
for x in the other equation, 3x + 4y = 15.

- Multiply 3 times
.

- Add
to 4y.

- Add
to both sides of the equation.

- Divide both sides of the equation by 23/2, which is the same as multiplying both sides by the reciprocal of the fraction.

- Substitute 3 for y in
. Because the resulting equation contains only one variable, you can solve for x directly.


- Add
to
by finding a common denominator and adding the numerators. Then reduce the fraction to its lowest terms if possible.

- The system is now solved. The value of x & y will be 1 & 3 respectively.

Answer:
A
Step-by-step explanation:
5y=32
trying to get y by itself
y=32/5
32/5 is the same as 6 and 2/5
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