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Anit [1.1K]
3 years ago
15

What is the value of y in the What is the value of a in the equation 5 a minus 10 b equals 45, when b equals 3?

Mathematics
1 answer:
lesya692 [45]3 years ago
8 0
5a-10b=45
b=3
5a -10(3) = 45
5a - 30 =45
5a = 75
a= 15
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2x-4y+7=0 how do I find the slope for this?
Digiron [165]

Answer:

The slope is 1/2 and the y intercept is 7/4

Step-by-step explanation:

2x-4y+7=0

To find the slope, we need to put the equation in slope intercept form

y = mx+b

So we need to solve for y

Subtract 2x from each side

2x-2x-4y+7=0-2x

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Subtract -7

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Divide by -4

-4y/-4 = -2x/-4  -7/-4

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8 0
3 years ago
I don’t understand 23-26can someone help?
svetoff [14.1K]

Answer:

If 23-26, that is -3

Well, because 23 can't minus 26, that's why you have to rearrange so that you can find the correct answer by letting -26 + 23.

3 0
3 years ago
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Daniel [21]

Answer:

20 games

Step-by-step explanation:

8 0
3 years ago
Find the determinant of the given matrix.<br><br> -42<br> or<br> -22<br> or <br> 22<br> or <br> 42
Maksim231197 [3]

Answer:

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Step-by-step explanation:

Cross multiply

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5 0
3 years ago
Read 2 more answers
How do you solve 125 - (5-9)^3÷2
hoa [83]
Solve what is in parenthesis first (5-9) = -4

Solve exponents next -4^3 = -64

Divide next
- 64 \div 2
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Lastly, subtract and resolve the negatives which become a positive number 125 - (-32) = 125 + 32 = 157
8 0
4 years ago
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