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Lapatulllka [165]
3 years ago
12

Given the equation 3x+7 which order of operations completely solves for x

Mathematics
1 answer:
inn [45]3 years ago
6 0

Answer-7/3

Step-by-step explanation:

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The cost of six hens and one duck at the university poultry farm is GH₵40. While four hens and three ducks cost GH₵36. What is t
Anon25 [30]

Answer:

Step-by-step explanation:

Let's call hens h and ducks d. The first algebraic equation says that 6 hens (6h) plus (+) 1 duck (1d) cost (=) 40.

The second algebraic equations says that 4 hens (4h) plus (+) 3 ducks (3d) cost (=) 36.

The system is

6h + 1d = 40

4h + 3d = 36

The best way to go about this is to solve it by substitution since we have a 1d in the first equation. We will solve that equation for d since that makes the most sense algebraically. Doing that,

1d = 40 - 6h.

Now that we know what d equals, we can sub it into the second equation where we see a d. In order,

4h + 3d = 36 becomes

4h + 3(40 - 6h) = 36 and then simplify. By substituting into the second equation we eliminated one of the variables. You can only have 1 unknown in a single equation, and now we do!

4h + 120 - 18h = 36 and

-14h = -84 so

h = 6.

That means that each hen costs $6. Since the cost of a duck is found in the bold print equation above, we will sub in a 6 for h to solve for d:

1d = 40 - 6(6) and

d = 40 - 36 so

d = 4.

That means that each duck costs $4.

3 0
3 years ago
Find d using a trigonometric ratio
babunello [35]

Answer: 38 is your answer hope this helped

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Step-by-step explanation:

6 0
3 years ago
The slope of a line is 2, and the y-intercept is 0. What is the equation of the line written in slope-intercept form?
Orlov [11]
The equation y=mx+b
Slope= m
y-intercept= b

y= 2x+0 so y=2x
7 0
3 years ago
HELPP MEE PLSSS HELPP
julia-pushkina [17]

Answer:

angle N is 79, angle K is 22, angle P is 81, angle D is 76

Step-by-step explanation:

all of the angles should add up to 180 degrees so add the two angles you have and subtract them from 180

6 0
2 years ago
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The measure of one base angle of an isosceles triangle is 35 degrees. What is the measure of the vertex angle?
Elis [28]

Answer:

110 degrees

Step-by-step explanation:

The measures of the two base angles of an isosceles triangle are the same so  180 - 2(35) = 110 which is the vertex angle.

8 0
3 years ago
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