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poizon [28]
3 years ago
5

the sum of two numbers,x and y is 12. the difference of x and two times y is 6. what are the values of x and y?

Mathematics
1 answer:
Alex3 years ago
3 0
Y = 2
x = 10
hope this helps.......
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Sally took her stats test last week and scored a 45%. The class average was 55%with a standard deviation of 4.5. How many standa
sesenic [268]

Answer: A

Step-by-step explanation:

5 0
3 years ago
An 18-wheel truck has a trailer that is 8 feet wide, 8 feet high, and 48 feet long. How much space is inside the trailer?
pochemuha

Answer:

3072 cubic feet

Step-by-step explanation:

the trailer is a rectangular prism. so we use the equation

Volume = length × width × height

V = 8 × 8 × 48

V = 3072 ft^3

4 0
3 years ago
Please help me on this problem​
Rudik [331]
<h2><em><u>Answer:</u></em></h2>

Total Surface Area = 375 ft^2

<h2><em><u>Step-by-step explanation:</u></em></h2>

You need to find the area of the ceiling, floor, the two rectangle walls and the two trapezoid walls

<u>Area of the ceiling:</u>

c = length * width

c = 9*6.5 = 58.5

<u>Area of the 2 rectangle walls:</u>

w = 2(length * width)

w = 2(9 * 8)

w = 2(72)

w = 144

<u>Area of floor:</u>

f = 9 * 7.5

f = 67.5

<u>Area of the two trapezoids:</u>

t = 2(h * \frac{a + b}{2})

a = 6.5

b = 7.5

h = 7.5

t = 2(h * \frac{a + b}{2})

t = 2(7.5 * \frac{6.5 + 7.5}{2})

t = 2(7.5 * \frac{14}{2})

t = 2(7.5 * 7)

t = 2(52.5)

t = 105

Total Surface Area = c + w + f + t

Total Surface Area = 58.5 + 144 + 67.5 + 105

Total Surface Area = 375 ft^2

8 0
4 years ago
Subtract 1/4 from 7/8
eduard
The answer is 5/8. 
I hope this helps have a nice day!                                                                                 
4 0
4 years ago
Read 2 more answers
A walker and a cyclist are 45 miles apart. They move towards each other with speeds of 5 mph and 10 mph respectively. In how man
Ymorist [56]

Answer: they will meet after 3 hours.

Step-by-step explanation:

Let t represent the number of hours it will take them to meet.

A walker and a cyclist are 45 miles apart. If they move towards each other, in t hours, they would have covered a total of 45 miles

Distance = speed × time

They move towards each other with speeds of 5 mph and 10 mph respectively. It means that the distance covered by the walker in t hours is 5 × t = 5t

Also, the distance covered by the cyclist in t hours is 10 × t = 10t

Since the total distance covered us 45 miles, then

5t + 10t = 45

15t = 45

t = 45/15

t = 3 hours

4 0
3 years ago
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