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Advocard [28]
4 years ago
5

Evaluate this expression : 3x - 2y +8 if 6 and y= 5

Mathematics
1 answer:
Nataly_w [17]4 years ago
6 0

Answer:

8

Step-by-step explanation:

3x - 2y + 8 = 3(6) - 2(5) = 18 - 10 = 8

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5. Using only odd numbers for numerators,
Lady bird [3.3K]

Answer:

  • 3/4 - 1/4 = 1/2
  • 5/8 - 1/8 = 1/2

Step-by-step explanation:

You can pick just about any fraction with an odd numerator and find another at distance 1/2 from it.

For example, 5/7 - 1/2 = 10/14 - 7/14 = 3/14. So your subtraction problem can be ...

  5/7 - 3/14 = 1/2

Choosing a denominator divisible by 4 can make both parts of the problem use the same denominator.

  3/4 - 2/4 = 1/4, so the corresponding subtraction problem is 3/4 - 1/4 = 1/2.

  5/8 - 4/8 = 1/8, so the subtraction problem is 5/8 -1/8 = 1/2.

4 0
3 years ago
Math question down below
Kipish [7]
Answer: 6928

----------------------------------------------------------

Explanation: 

We have two areas we need to find: The area of the trapezoid and the area of the rectangle. Let's call these areas A1 and A2.

Area of Trapezoid = (height)*(base1+base2)/2
A1 = h*(b1+b2)/2
A1 = 80*(150+100)/2
A1 = 80*250/2
A1 = 20000
A1 = 10000

Area of Rectangle = (length)*(width)
A2 = L*W
A2 = 48*64
A2 = 3072

Subtract the two areas (A1-A2) to get the difference D
D = A1 - A2
D = 10000 - 3072
D = 6928

This difference D is exactly equal to the shaded area. 


3 0
3 years ago
johnny saves all of his nickles and dimes in a jar. One day he counted them and found that there were 73 coins worth $4.55. How
juin [17]
Ummm I'm not sure but let me do the math and I'll tell u :)
7 0
4 years ago
(2g+9h-5)-(6g-4h+2)<br><br>g=-2<br>h=5
xxTIMURxx [149]
(2(-2)+9(5)-5)-(6(-2)-4(5)+2)
(-4+45-5)-(-12-20+2)
(45-9)-(-32+2)
36+30
66
3 0
3 years ago
Read 2 more answers
20 points!!<br> -3 + w = -6<br><br> please help me write out my problem like this
murzikaleks [220]

Answer:

w=-3

Step-by-step explanation:

-3+w=-6 = original problem

w=-6+3 = u add 3 because u have it was negative so if u bring it to the other side u have to make it positive

w=-3 = answer

3 0
3 years ago
Read 2 more answers
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