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rewona [7]
3 years ago
15

I need your help on these questions. Please explain each of them. Thank you for your support

Mathematics
1 answer:
kodGreya [7K]3 years ago
4 0

Answer:

Gemma

9 X 150 = 1350

61000/100 X 2 =1220

add together $2570

Fred

14350/100x2=287

200 + 287 = $487

Erik

4 X 160 = 640

153000/100 X 2.5 = 3825

3825 + 640 = $4465

Allison

510000/100x0.5 = $2550

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The ratio of the measures of two complementary angle is 1:8, find the measure of each angle, the small and the large
anygoal [31]
1X+8X=90

9X=90

X=10
so one of them is 10 and the other one is 8 times 10 which become 80
4 0
4 years ago
Circle O has a circumference of 36 cm.
Svetach [21]

Answer: 18 cm

Step-by-step explanation:

  1. C= 2πr
  2. plug it in! 36 π = 2 π r
  3. divide both sides by π and you get 36= 2r
  4. divide both sides by 2 and you get that 18= r
  5. so r, or the radius, equals 18
8 0
4 years ago
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At the same time of day, a tree and a flagpole cast shadows as shown below.
Hitman42 [59]

Answer:

16 feet

Step-by-step explanation:

Height of tree = \frac{20}{15} × 12ft

                       = 16ft

3 0
3 years ago
Y equals equation for the line that passes through the points (-6,2) and (1,16)
8_murik_8 [283]

Slope-intercept form:  y = mx + b  

[m is the slope, b is the y-intercept or the y value when x = 0  --->  (0, y)  or the point where the line crosses through the y-axis]

To find the slope, you use the slope formula:

m=\frac{y_2-y_1}{x_2-x_1}       And plug in the two points

(-6, 2)  =  (x₁ , y₁)

(1, 16)  =  (x₂ , y₂)

m=\frac{y_2-y_1}{x_2-x_1}

m=\frac{16-2}{1-(-6)}     [two negatives cancel each other out and become positive]

m=\frac{16-2}{1+6}

m=\frac{14}{7}

m = 2       Now that you found m, plug it into the equation

y = mx + b

y = 2x + b        To find b, plug in one of the points into the equation

(-6, 2)

y = 2x + b

2 = 2(-6) + b

2 = -12 + b          Add 12 on both sides

14 = b

(1, 16)

y = 2x + b

16 = 2(1) + b          Subtract 2 on both sides

14 = b        

Now that you found b, plug it into the equation

y = 2x + 14

8 0
3 years ago
A construction company is setting up signs on 2 miles of road. if the company places a sign every 1/4 mile, how many signs would
Degger [83]
They would use 8  signs because one mile in this case is broken up into quarters so in a mile it would have 1/4 1/2 3/4 and 1 mile times that by two because they are placing signs for 2 miles so 4+4= 8
3 0
4 years ago
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