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yaroslaw [1]
2 years ago
7

Help asap 25 points worth pre alg x= y=

Mathematics
1 answer:
Mumz [18]2 years ago
8 0

Answer:

Firstly Substitute y=2x-5 into 5x-4y=-10

This will be 5x-4(2x-5)=10 now solve for x

5x-8x+20=-10

-3x=-30

X=10

Now sub x as 10 into the second equation y=2x-5

Y=2(10)-5

Y=15

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Steps to scientific notation
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1.Move the decimal place to the left to create a new number from 1 up to 10.
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3.Put the number in the correct form for scientific notation
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3 years ago
Italian Tours offers a daily sightseeing trip around Florence. The list below gives the number of people who made the trip for a
den301095 [7]

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37

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2 years ago
Figue out the measures
mart [117]

Answer:

Angle 1 is 134 and Angle 2 is 46

5 0
2 years ago
I need help.. 
Debora [2.8K]
This is exactly like the one with the 'n's that you posted yesterday.
I guess you didn't get enough help on that one to understand it.

<span><u>7k/8 - 3/4 - 5k/16 = 3/8</u>

3/4 is the same as 6/8.
Add it to each side of the equation:

7k/8         - 5k/16 = 9/8

Multiply each side by 16 :

14k - 5k = 18

Add up the 'k's on the left side:

9k = 18

From this point, you can proceed directly to the numerical value of 'k'
if you need it.<u />

In your question, you said you need help, and I showed you how to
strip the problem down so that the only thing left is ' k = something '.
Giving you the answer is no help.  Nobody actually needs the answer.
</span>


8 0
3 years ago
Read 2 more answers
PLEASE HELP! I do not understand as to what they are asking for me to do and how to do it.
Ymorist [56]

Answer:

<em>1 cm^2 : 9 m^2</em>

Step-by-step explanation:

The scale factor of an area is the square of the scale factor of a length.

The scale for lengths is 1 cm : 3 m.

You now square that scale to get the scale of the areas.

Scale of areas:

(1 cm)^2 : (3 m)^2

1 cm^2 : 9 m^2

3 0
3 years ago
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