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3 years ago

12

Can someone help me?

2 answers:

neonofarm [45]3 years ago

8 0

A, B and D are possible

to do that, put -3 as x and 2 as y and check whether the equation is true or not.

good luck

astra-53 [7]3 years ago

4 0

Slope m = 2/3 passing thru (-3, 2)
equation in point slope form
y - y1 = m(x - x1)
so
y - 2 = 2/3(x + 3) -------------answer is A.
y = 2/3 x + 2
y = 2/3 x + 4 --------------answer is D.
or
3y = 2x + 12
2x - 3y = -12 ------------------answer is B

Answers:
A, B and D.

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Can someone Please help me on this easy math problem

allsm [11]

Step-by-step explanation:

Equation of a straight line

y = mx + c, m is the slope, and c the intercept

points (3,7) x = 3, y = 7, c = 1

7 = m × 3 + 1

7 = 3m + 1

3m = 7 - 1

3m = 6

m = 6/3

m = 2

6 0

3 years ago

Mandy and Jeff start running around the track in the same direction at the same time. Mandy runs one lap in 2 minutes and 30 sec

Savatey [412]

Answer:

At 8:52:30 am they will be side-by-side again

Step-by-step explanation:

Let s be the distance ran in one 1 lap.

Here Jeff runs one extra lap compared to Mandy for coming side by side again.

Mandy runs one lap in 2 minutes and 30 seconds = 150 s

Speed of Mandy, $=\frac{s}{150}$

Jeff runs one lap in 2 minutes and 15 seconds = 135 s

Speed of Jeff, $=\frac{s}{135}$

Let t be the time when Jeff run one extra lap,

That is

$t\times \frac{s}{135}-t\times \frac{s}{150}=s\\\\t\left ( \frac{1}{135}-\frac{1}{150}\right )=1\\\\t\times \frac{15}{135\times 150}=1\\\\t=1350s$

So after 1350 seconds Jeff comes side by side to Mandy,

They both start at 8:30 am

1350 s = 22.5 minutes = 22 minutes 30 seconds

Time = 8:52:30 am

3 0

3 years ago

Brian has six eggs. He needs 2/3 of the eggs to make an omelet. How many eggs does he have

IRISSAK [1]

⅔× 6 = 4

Brian will use 4 eggs to make his omlet.

6-4=2

Brian has 2 eggs left

3 0

4 years ago

Help me please this is probably very easy but I'm struggling

Lana71 [14]

I think it is 110 or
130

5 0

3 years ago

Find the product of (1/5x^3)(10x)(1/5x^2)

Colt1911 [192]

Answer:

2/5x^6

Step-by-step explanation:

Times 1/5x^3 and 10x first

$\frac{1}{5} x {}^{3} \times \frac{10}{1} x = \frac{10}{5} x {}^{4}$

then Times the ans you got with 1/5x^2

$\frac{10}{5} x {}^{4} \times \frac{1}{5} x {}^{2} = \frac{10}{25} x {}^{6}$

After that you simplify Ur ans.

The numerator and the denominator are a multiple of 5 so divide both by 5.

You will get your ans

$\frac{10}{25} x {}^{6} = \frac{2}{5} x {}^{6}$

7 0

4 years ago