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RSB [31]
3 years ago
9

Anyone please...Explain & solve

Mathematics
2 answers:
Nitella [24]3 years ago
4 0

Answer:

y = -2x

Step-by-step explanation:

We have direct variation means

y =kx

We know y and x

10 = k (-5)

Solve for k by diving by -5

10/-5 = k (-5)/-5

-2 = k

y = -2x


lukranit [14]3 years ago
4 0

Answer:

y = -2x

Step-by-step explanation:

General formula for direct proportion:  y = kx, where k is the constant of proportionality.  If y = 10 when x = -5, then 10  =  -5k, and k = -2.

Then the desired relationship is y = -2x.

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Dante and Mia have a total of 350 pennies in their piggy banks, altogether. After Dante lost half of his pennies and Mia lost on
tatuchka [14]

Answer:

150 pennies were lost altogether

Step-by-step explanation:

Let the initial number of pennies owned by Dante be x pennies

Let the initial number of pennies owned by Mia be y pennies

Mathematically ;

x + y = 350 •••••••(i)

So after losing half, dante will have x/2 pennies left.

Mia lost 1/3 so she will have 2/3y left

So after all the losses, they both had equal amount of pennies

This means that;

x/2 = 2y/3

Cross multiply;

3x = 4y •••••••(ii)

Let’s solve both equations simultaneously;

From i , x = 350-y

Substitute this into equation ii

3(350-y) = 4y

1050-3y = 4y

7y = 1050

y = 1050/7

y = 150

since x = 350-y

x = 350-150 = 200

Now Dante loss x/2 = 200/2 = 100

Mia lost 1/3y = 1/3 * 150 = 50

Total pennies lost = 100 + 50 = 150

7 0
3 years ago
At 4:00 AM, the temperature is – 12 °F. If the temperature drops 3 °F per hour, what will the temperature be at 6:00 AM?
Scilla [17]
The answer would be -18°F at 6AM
Hope this helps ?(:
3 0
2 years ago
Read 2 more answers
Using the rule y = 8x+ 5, Find the value of y when xis 6.
denpristay [2]

Answer:

y=53

Step-by-step explanation:

Ⓗⓘ ⓣⓗⓔⓡⓔ

y=8(6)+5

y=48+5

y=53

(っ◔◡◔)っ ♥ Hope this helped! Have a great day! :) ♥

Please, please give brainliest, it would be greatly appreciated, I only a few more before I advance, thanks!

5 0
3 years ago
Can anyone help please? I just need the Y-intercept is all, Thank you!
NARA [144]

Answer:

4.95

Step-by-step explanation:

8 0
3 years ago
Help me please i don’t get how to point slope this equation please
PSYCHO15rus [73]

Answer:

y-5=3x-15

Step-by-step explanation:

Slope=(5+1)/(-6+8)

=6/2

=3

Equation of line passing throgh point (-6,5):

y-5=3(x-5)

y-5=3x-15

3 0
3 years ago
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