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Elan Coil [88]
3 years ago
9

I need help with math question

Mathematics
1 answer:
OLga [1]3 years ago
7 0

Answer:

B. --4/-5

Step-by-step explanation:

negative sign will cancel and then one sign will remain that is -4/5.

Mark as brainliest.

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I need help on my corrections! Can someone help me please if u do know!!
Harlamova29_29 [7]
Looks good for high school math make sure the teacher sees you're work clearly and know what the numbers are overall you should be good
8 0
3 years ago
A car is traveling on a highway. The distance (in miles) from its destination and the time (in hours) is given by the equation d
blondinia [14]

Answer:

d–intercept is simply the value of t when d equals zero. Which this case is when he reaches it his destination.

3 0
3 years ago
It is estimated that light takes 110,000 years to travel the full distance across our galaxy
stepladder [879]
\bf \stackrel{light~speed}{3.0\times 10^8}ms^{-1}\implies \stackrel{light~speed}{3.0\times 10^8}~\frac{m}{s}\implies 300,000,000~\frac{m}{s}\\\\
-------------------------------\\\\
\textit{how many seconds in a minute?}\qquad 60
\\\\\\
\textit{how many seconds in }\stackrel{1~hr}{60~minutes?}\qquad 60\cdot 60
\\\\\\
\textit{how many seconds in }\stackrel{1~day}{24~hrs}?\qquad 60\cdot 60\cdot 24
\\\\\\
\textit{how many seconds in }\stackrel{1~year}{365~days}?\qquad 60\cdot 60\cdot 24\cdot 365

now, it takes 1 second for light to travel 300,000,000 meters.

if we know it takes light 1 second to go 300 million meters, then in 365 days or a year, or 60*60*24*365 seconds, it will then travels

300,000,000 * 60 * 60 * 24 * 365 meters in 1 year,

how about in 110,000 years, how many meters has it travelled?

300,000,000 * 60 * 60 * 24 * 365 * 110,000   that many meters.

we know she travels the Milky Way in 110,000 years  or 60 * 60 * 24 * 365 * 110,000  seconds

and we know that 110,000 years is 3468960000000 seconds, so

if it travels 300000000 meters in only 1 second, in 3468960000000 seconds, it will travel then (300000000) * (3468960000000) meters

or  1040688000000000000000 meters.
4 0
3 years ago
Homework is 25% of my grade, quizzes are 25% of my grade, and tests are 50% of my grade. I get a 100% on all 4 of my homework as
Arisa [49]

Answer:

25+25+50=100

no quiz

0% on test

for quiz,25% is lost

for test,50% is lost

50+25=75

100-75=25

answer is 25%

5 0
3 years ago
Read 2 more answers
Solve by elimination<br> 5x+4y = 12<br> 3x - 3y = 18<br><br> Please help solve and provide steps.
SOVA2 [1]
First you solve for y.
5x+ y= 12 so Y= 12-5x
And plug it into the next equation
3x- 3(12-5x) = 18
Distribute
3x-36+15x=18
Add 36 to both sides
3x+ 15x= 54
18x= 54 ... divide
x= 3
And you can plug in x to solve for Y
5(3) + y = 12
15+ y = 12 ...subtract 15 from both sides
y= -3
4 0
4 years ago
Read 2 more answers
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