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Burka [1]
3 years ago
8

Need help. not in college

Mathematics
1 answer:
dimaraw [331]3 years ago
4 0
The length of ab is 24
You might be interested in
Elimination_4x_2y=14<br> _10x+7y=_24
Gnesinka [82]

Answer:

The answer is x=-\frac{50}{8}  and y=\frac{11}{2}.

Step-by-step explanation:

Given:

-4x-2y=14

-10x+7y=-24

Now, to solve it by elimination:

-4x-2y=14   ......(1)

-10x+7y=-24 ......(2)

So, we multiply the equation (1) by 7 we get:

-28x-14y=98

And, we multiply the equation (2) by 2 we get:

-20x+14y=-48

Now, adding both the new equations:

-28x-14y+(-20x+14y)=98+(-48)

-28x-14y-20x+14y=98-48

-28x-20x-14y+14y=50

-8x=50

<em>Dividing both the sides by -8 we get:</em>

x=-\frac{50}{8}

Now, putting the value of x in equation (1):

-4x-2y=14

-4(-\frac{50}{8})-2y=14

\frac{200}{8} -2y=14

25-2y=14

<em>Subtracting both sides by 25 we get:</em>

-2y=-11

<em>Dividing both sides by -2 we get:</em>

y=\frac{11}{2}

Therefore, the answer is x=-\frac{50}{8}  and y=\frac{11}{2}.

5 0
3 years ago
4m - 9= 31<br><br> I can’t remember how to work this out. Can someone help?
lianna [129]

Answer:

10

Step-by-step explanation:

4m=40

m=10

5 0
3 years ago
Read 2 more answers
What is the function graphed below?<br> O y= x + 0.5<br> O y= 2 x + 0.5<br> O y=x<br> O y=(0.5)
olga2289 [7]

Answer:

  • A.  y= x + 0.5

Step-by-step explanation:

<u>We see that:</u>

  • y- intercept is b = 0.5, point (0, 0.5)
  • Rate of change is m = 1 as each next value of y is greater by 1.

<u>The function is:</u>

  • y = mx + b
  • y = x + 0.5

Correct choice is A

5 0
3 years ago
Jeremy bought a 5-pound bag of potatoes for$2.29. What is the unit price for one pound of potatoes?
Lerok [7]

Answer: .458 or about .46 cents if you round to the nearest cent

Step-by-step explanation:Since the price for 5 pounds of potatoes is 2.29 all together you can divide 2.29 by 5 which gives you the price for one pound of potatoes. Since one pound of potatoes would be the unit price. Hope this helps :D

3 0
3 years ago
Can anyone help with any of these subjescts
Vadim26 [7]
Classify real numbers i can possibly help with! hmu! ill help
7 0
3 years ago
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