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3 years ago

I NEED HELP FAST!!!!!!!!!!!!

Mathematics

1 answer:

aev [14]3 years ago

8 0

Answer:

y=-3/4x-3

Step-by-step explanation:

y=mx+b

find the y intercept=b

y=mx-3

find the slope

y=-3/4x-3

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Samin can run 5 kilometres in 30 minutes. Assuming she keeps a constant pace, how many kilometres can she run in 45 minutes?

Vladimir [108]

Answer:

7.5

Step-by-step explanation: She can run 5km in 30 mins. That means she can run 1 km every 6 mins. 45/6= 7.5. She can run 7.5 km in 45 mins. Such an amazing feat my chubbiness can't compete with.

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3 years ago

Hi<br> Need help ASAP please

solong [7]

it's 3/2 because it rises three and goes over two. hope this helps !!

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3 years ago

What is the location of the point on the number line that is 2/5 of the way from A = -6 to B = 9

sammy [17]

The distance between is =|9|+|-6|=15.
We can find that
$\frac{2}{5} \times 15 = 6$
So 2/5 of the AB segment is 6 distance points away from A at point C=0.

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3 years ago

I need help urgent plz someone help me solved this problem! Can someone plz help I’m giving you 10 points! I need help plz help

VMariaS [17]

Answer: a) 8.779 years

b) 8.664 years

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

$A=P\bigg(1+\dfrac{r}{n}\bigg)^{nt}$

A: accumulated amount (balance)
P: principal amount (original/initial investment)
r: interest rate (convert to a decimal)
n: number of times compounded per year
t: number of years

Given: A = 1800, P = 900, r = 8% = 0.08, n = 3, t = unknown

$1800=900\bigg(1+\dfrac{0.08}{3}\bigg)^{3t}\\\\\\2=\bigg(1+\dfrac{0.08}{3}\bigg)^{3t}\\\\\\ln\ 2=ln \bigg(1+\dfrac{0.08}{3}\bigg)^{3t}\\\\\\ln\ 2=3t\ ln\bigg(1+\dfrac{0.08}{3}\bigg)\\\\\\\dfrac{ln\ 2}{3\ ln\bigg(1+\dfrac{0.08}{3}\bigg)}=t\\\\\\\large\boxed{8.779=t}$

$A=Pe^{rt}$

$1800=900e^{0.08t}\\\\\\2=e^{0.08t}\\\\\\ln\ 2=0.08t\\\\\\\dfrac{ln\ 2}{0.08}=t\\\\\\\large\boxed{8.664=t}$

4 0

3 years ago

Two number cubes are rolled.

Olegator [25]

Cubes have 6 numbers
3 odd, 3 even

probablity=desiredoutcome/totalpossibleoutcomes
there are 6 total desired outcomes (3 on each cube)
total possible, there are 6*6 or 36 total possible outcomes
so 6/36 or 1/6 chance

3 0

3 years ago

Read 2 more answers