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lawyer [7]
2 years ago
14

Solve each equation

Mathematics
1 answer:
Gemiola [76]2 years ago
6 0

Answer:

1. 2x=5

Divide both by 2, x=2.5

2. y+1.8=14.7

Subtract 1.8 from both sides to isolate the variable, x=12.9

3. 6=1/2z

Multiply each side by 2 to isolate the variable, 12=z

4. 3 1/4 = 1/2+w

Isolate the variable by subtracting 1/2 to both sides, 2 3/4 = w

5. 2.5t=10

Divide each side by 2.5 to isolate the variable, t=4

Step-by-step explanation:

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Find the equation, in slope-intercept form, of the line through the pair of points
kolezko [41]

Answer:

The equation of the line would be y = x + 1

Step-by-step explanation:

To find the equation of that line, we first need to find the slope. We can do this by using the slope equation.

m(slope) = (y2 - y1)/(x2 - x1)

m = (4 - 2)/(3 - 1)

m = 2/2

m = 1

Now using this and a point, we can use point-slope form to get the equation.

y - y1 = m(x - x1)

y - 2 = 1(x - 1)

y - 2 = x - 1

y = x + 1

8 0
4 years ago
What is an x and y intercept for 14x+y=140
DanielleElmas [232]
140 divided by 14 is 10. So x is 10. And Y is 140. 140 divided by y (1) =140
4 0
4 years ago
What is the answer to 1/2(2a-6b+8)=
inessss [21]

Answer:

A+3b+4

Step-by-step explanation:

You multiply everything by 1/2 which is like dividing it by 2

5 0
3 years ago
Read 2 more answers
Two small planes start from the same point and fly in opposite directions. The first plane is flying 25 mph slower than the seco
Talja [164]

Answer:

105 mph = rate of first plane

130 mph = rate of second plane

Step-by-step explanation:

Let r = rate of first plane

then r + 25 = rate of second plane

2r = distance of first plane

2(r + 25) = distance of second plane

2r + 2(r + 25) = 470

2r + 2r + 50 = 470

4r = 420

r = 105 mph

r + 25 = 130 mph

5 0
3 years ago
A demand loan for $8,944.61 with interest at 7.8% compounded semi-annually is repaid after two years, seven months. What is the
disa [49]

Answer:

the correct answer is option D which is $1,954.94

Step-by-step explanation:

loan amount =  $8,944.61

interest =  7.8% = 7.8 %/2 = 3.9 %

compounded semi annually =  2 × 12 + 7 = 31 months

                         time = 31/6 months

I =P(1+\dfrac{r}{100})^{\frac{31}{6}}-P\\ \\I =  8994.61(1+\dfrac{3.9}{100})^{\frac{31}{6}}-8994.61 \\I =1954.94

hence, the correct answer is option D which is $1,954.94

7 0
4 years ago
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