3x + 7y =47
-4x +7y =19
Answers
-1(-4x+7y=19)
Distribute the -1 and add the equations together...you'll get:
7x=28
x=4
Plug X=4 back in...
12+7y=47
7y=35
y=5
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Solve each system of linear equations by multiplying { -2x + 2y = 2 { -4x + 7y = 16
simplify and combine like terms
Answers
Final answer:
The problem is asking us to combine like terms, which in this case are 1/4b and 4/3b. After finding a common denominator and adding these terms, we get 19b/12. Including the constant term 7/12, the simplified equation is 19b/12 + 7/12.
Explanation:
The equation in question here is: 1/4b + 4/3b + 7/12.
To simplify and combine like terms, we firstly deal with the terms having 'b', which are like terms. We can add 1/4b and 4/3b by finding a common denominator, which in this case is 12.
So, we get (3b/12 + 16b/12), which simplifies to 19b/12
The constant term 7/12 can't be combined with the terms containing 'b', as it is not a like term. Hence, the simplified form of the equation becomes: 19b/12 + 7/12.
Learn more about Combining Like Terms here:
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Answer:
Step-by-step explanation:
Find the common denominator of 4, 3, and 12. It is 12.
1/4 = 3/12
4/3 = 16/12
7/12 = 7/12
4(×+2)=
3 (a+2)=
2 (×+3)=
Answers
Answer:
4(x+2) = 4*x + 4*2 = 4x+8
3(a+2) = 3*a + 3*2 = 3a + 6
2(x+3) = 2*x + 2*3 = 2x +6
Hope this help you :3
Step-by-step explanation:
Use the distributive property a(b + c) = ab + ac
4(x + 2) = (4)(x) + (4)(2) = 4x + 8
3(a + 2) = (3)(a) + (3)(2) = 3a + 6
2(x + 3) = (2)(x) + (2)(3) = 2x + 6
Answers
(x^2y^3-2y^3)+(-2x^2+4)
(y^3)(x^2-2)+(-2)(x^2-2)
see the (x^2-2) is common term so undistribute
(x^2-2)(y^2-2)
last one
Answers
A normal distribution is a true symmetric distribution of observed values. When a histogram is constructed on values that are normally distributed, the shape of columns form a symmetrical bell shape. This is why this distribution is also known as a 'normal curve' or 'bell curve
Answers
You have to get p on its own, so you divide 1295 on both sides of the '='.
1295 × p = 714
p = 714 ÷ 1295
p = 0.55135135135...
p × 100 = actual percentage
actual percentage = 55.14%
Answers
Let us say you must pay someone ten dollars a month. This is the same as being paid negative ten dollars a month. Ten months ago (in negative ten months) you were 100 dollars richer *. (-10)x(-10)=100