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2 years ago

Multi step equation help 5n - 2 ( 2 -n ) = -7

Mathematics

2 answers:

ELEN [110]2 years ago

8 0

Answer:

-3/7

Step-by-step explanation:

$5n-2(2-n)= -7\\\\\\5n-4+2n= -7\\\\\\7n=-7+4\\\\\\7n=-3\\\\\\\bold{n=\dfrac{-3}{7}}$

____ [38]2 years ago

4 0

∑ Hey, microhiezv ⊃

Answer:

n = -3/7 - Fraction Form

n = -0.43 - Decimal Form

Step-by-step explanation:

Given:

$5n - 2 ( 2 -n ) = -7$

Solve:

$5n-2\left(2-n\right)=-7$

Distribute - 5n - 2 ( 2 - n ) : 7n - 4

$7n-4=-7$

Add 4 to both sides:

$7n-4+4=-7+4$

$7n = -3$

Divide both sides by 7

$\frac{7n}{7}=\frac{-3}{7}$

$n=-\frac{3}{7}$

$n=-0.43$

xcookiex12

8/22/2022

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Find the smallest power of 10 that will exceed M. Let M = 118,526.65902.

zavuch27 [327]

Answer:

The smallest power of 10 that will exceed $M$ is $10^{6}$ .

Step-by-step explanation:

We can use the following approach to determine the smallest power of 10 that will exceed M. We can transform that number into scientific notation, which is of the form:

$x.y \times 10^{n}$ , $\forall \,x,y\in \mathbb{N}$

Where:

$x$ - Integer part, formed by a digit, which is of the highest order.

$y$ - Decimal part, formed by a digit onwards.

$n$ - Power grade.

The smallest power of 10 that will exceed M is $10^{n+1}$

If $M = 118,526.65902$ , then, the power grade is number of spaces that dot must be moved leftwards. In this case, dot must be moved 5 spaces on the left. The integer part is 1 and the decimal part is 1852665902. Then, the value of $M$ in scientific notation is: