I know this doesn't really help but... Good luck on the test!! And also I'm pretty sure they have youtube vids on how to do this stuff. Well, anyway bye!!! Good luck!!!

4 0

2 years ago

18 minus 7 x = negative 20.5 What is the value of x? Negative 5 and one-half Negative StartFraction 5 Over 14 EndFraction StartF

alisha [4.7K]

Answer:

x = 5.5 (Fraction 5 and one-half)

Step-by-step explanation:

18 - 7x = -20.5

-18 -18

-7x = -38.5

/-7 /-7

x = 5.5

3 0

2 years ago

25% as a fraction and a decimal

slamgirl [31]

Answer:

Fraction: 1/4 Decimal: 0.25

Step-by-step explanation:

4 0

2 years ago

Express 0.003597 to three significant figures

coldgirl [10]

Answer:

0.00360.

Step-by-step explanation:

Leading zeros in a number are not significant, so your number has four significant figures.

You must drop the 7 from 0.003597.

Since 7 is greater than 5, you must add 1 to the 9

$\begin{array}{r|l}1& \\0.00359 &\text{7}\!\!\!\!\diagup \\\mathbf{0.00360} & \\\end{array}$

3 0

2 years ago