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maxonik [38]
3 years ago
7

Pinto is planning to paint the walls of a bedroom that is 20 feet long, 15 feet wide, and 8 feet high. Is he too has 1 gallon of

paint that covers 400 ft.², how many additional gallons of paint does he need?
Mathematics
1 answer:
eimsori [14]3 years ago
5 0

Answer:

0.4 gallons

Step-by-step explanation:

Length of a bedroom= 20 feet

Breadth of a bedroom= 15 feet

Height of a bedroom= 8 feet

Area of walls of a bedroom= 2(l+b)×h

Area of walls of a bedroom=2(20+15)×8 ft^{2}

Area of walls of a bedroom= 2× 35×8  ft^{2}

Area of walls of a bedroom=560  ft^{2}

Amount of paint in 1 gallon = 400 ft^{2}

Number of gallons required= \frac{560}{400}

Number of gallons required= 1.4 gallons

Hence, 0.4 extra gallons required

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ms. Rao buys a computer, a printer, and a scanner for $2543. the computer cost $1502 more than the printer. the printer costs $1
Mazyrski [523]
This question involves a system of equations.

for the variables we will use c for computer, p for printer, and s for scanner.

in order to solve a system of equations, we need to solve one variable, so we will just pick c because we are solving for the computer.

when we set up the
equation, we need to convert all the variables into an applicable form of c, since that is the variable we are solving for. we can do this because we have information on how the other variables differ on c.

so we get these translations:

c = c
p = c - 1502
s = p - 123

however, the scanner is not translated to c yet, it is translated into p, but we know p can translate into c, so we plug in the equation for p as so:

s = (c - 1502) - 123

which translates to

s = c - 1625

now we have

c = c
p = c - 1502
s = c - 1625

now that we have the translations, we have to use the original equation given to us which is

c + p + s = 2543

which, with our translations can be said as

c + (c - 1502) + (c - 1625) = 2543

which simplifies to

3c - 3127 = 2543.

now, we add 3127 to both sides to get

3c = 5670

then, we divide 3 to both sides to get

c = 1890

so the computer costs 1890.

if you want to find the price for the printer and scanner, simply take c and plug it in to the other equations as so.

p = 1890 - 1502 (388)
s = 1890 - 1625 (265)

6 0
3 years ago
1. Pat made muffins to b/ring to a party! She gave ⅙ of the muffins to her younger brothers. Her dad ate ⅛ of the muffins. What
tia_tia [17]

Answer:

17/24

Step-by-step explanation:

1 - (1/6 + 1/8) = 24/24 = (4/24 + 3/24) = 17/24

6 0
2 years ago
Given the arithmetic sequence where a1 = -5 and d = 6, what is a5? Completing these tests is what determines whether or not i gr
Taya2010 [7]
Since the first term is -5 and the difference is 6 so a2=1,a3=7,a4=13,a5=19. Hope that helped. if you have any questions regarding how I got the values, feel free to ask. :')
4 0
2 years ago
Which process will create a figure that is congruent to the figure shown
saul85 [17]
In geometry the movement of one figure to different points without changing it size or shape if a translation. All the other types of movement change its vertices or change the shape.
7 0
2 years ago
Read 2 more answers
What is n (6.5=-3+n) plz help
Tresset [83]

Answer:

n=−0.545455

Step-by-step explanation:

n(6.5)=−3+n

Simplify both sides of the equation.

n(6.5)=−3+n

6.5n=−3+n

6.5n=n−3

Subtract n from both sides.

6.5n−n=n−3−n

5.5n=−3

Divide both sides by 5.5.

5.5n

5.5

=

−3

5.5

3 0
2 years ago
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