What is nine tenths in a decimal

Mathematics

1 answer:

ehidna [41]3 years ago

6 0

Answer:

Step-by-step explanation:9 tenths means that if you divide something into ten equal parts, 9 tenths is 9 of those parts that you just divided up. Since 9 tenths is 9 over ten, 9 tenths as a Fraction is 9/10. If you divide 9 by ten you get 9 tenths as a decimal which is 0.90.

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Consider the following pair of equations:

Aloiza [94]

Y = 3x + 3 this is equation 1
y = x -1 this is equation 2
since equation 1 and 2 already defined y in terms of x, we're just gonna substitute y into the other equation. as 2 is shorter I'm going with that today
x - 1 = 3x +3
-1 - 3 = 3x - x
-4 = 2x
x = -2
now we've got x just sub it in equation 2
y = -2 -1
y = -3
so the answer is (-2,-3)

5 0

3 years ago

Find both solutions for the variable b^2+ 9b+ 18=0

Paul [167]

If you would like to solve the equation b^2 + 9 * b + 18 = 0 for the variable b, you can do this using the following step:

b^2 + 9 * b + 18 = 0
(b + 3) * (b + 6) = 0

Result:
1. solution: b = - 3
2. solution: b = - 6

7 0

3 years ago

If f(x) = -5-4 and g(x) = -3 -2 find (f-g)(x)

asambeis [7]

<u>Answer:</u>

The correct answer option is D. $-5^x+3x-2$

<u>Step-by-step-explanation:</u>

We are given the following two functions:

$f(x)=-5^x-4$

and

$g(x)= -3x-2$

We are to find $(f-g)(x)$ so we will subtract the function g from function f, arrange the like terms together and combine them like shown below to get: