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aliina [53]
2 years ago
5

Five people can finish painting a wall in 5 hours.if only 2 people are available,how many hours do they have to work to finish t

he same job?​
Mathematics
1 answer:
lisov135 [29]2 years ago
5 0
The answer is 12.5 hours
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What is the formula for an eastbound car is going 4 miles per hour faster than a westbound car. the cars are 208 miles apart 2 h
ivanzaharov [21]
Draw a diagram to illustrate the problem as shown below.

Let v = speed of the westbound car, mph

Because the eastbound car travels 4 mph faster than the westbound car, its speed is (v+4) mph.

After 2 hours,
the westbound car travels 2v miles west, and the eastbound car travels 2(v+4) miles east.
Because they become separated by 208 miles, therefore
2v + 2(v+4) = 208
4v + 8 = 208
4v = 200
v = 50 mph

The westbound car travels at 50 mph.
The eastbound car travels at v+4 = 54 mph

Answer: The eastbound car travels at 54 mph.

7 0
3 years ago
What is the equation of the line that passes through the point ( − 3 , 1 )and has a slope of 2/3
andrezito [222]

Answer: y = 2/3x + 3

Step-by-step explanation:

We will write the equation in slope intercept form (y=mx+b).

In the formula y=mx + b,  m is the slope and b is the y intercept. We need the slope and y intercept numbers to write the equation. Since we know the slope we will use the given point to find the y intercept by plotting in the x and y coordinates into the formula.

1 = 2/3(-3) + b       Solve for b

1= -6/3 + b

1 = -2 + b  

+2   +2

b = 3  

The equation will be   y = 2/3x + 3

3 0
3 years ago
Need help asap. will give Brainliest if answered fast enough
Gwar [14]

Answer:

-0.57

Step-by-step explan

7 0
3 years ago
Read 2 more answers
A city's sales tax is 7% tell how many cents of tax are on each dollar
tamaranim1 [39]
.07 cents of tax per dollar
3 0
3 years ago
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The sum of two numbers is 31.5. The difference is 5.25. Find the numbers
ANTONII [103]
X+y=31.5
x-y=5.25

add 2 equations
x+y+x-y=31.5+5.25
2x=36.75
x=18.375
y=31.5-18.375=13.125
check : 18.375+13.125=31.5, 
18.375-13.125=5.25 
so
Answer:
18.375 and 13.125

8 0
3 years ago
Read 2 more answers
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