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ladessa [460]
4 years ago
5

Can you help me answer this question 2 + x for x = 7

Mathematics
1 answer:
Deffense [45]4 years ago
3 0

Answer:

9

Step-by-step explanation:

Given

x=7

So,

2 +x

= 2+7

=9

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3(4x-2)-5x=6-7(-x-2)
Marina CMI [18]

123453242463563276890798765432

its -2

6 0
4 years ago
Michele is 52 inches tall her father is 6 feet 3 inches tall exactly how many inches taller is Michele,s father than Michele
Stella [2.4K]
52 inches = 4 foot 3 so Michele's father is 2 feet taller than Michele
4 0
3 years ago
The surface area of each face of a cube is (x
Assoli18 [71]

Answer:

length of each edge = (x + 3)

Step-by-step explanation:

The surface area of each face of the cube = (x^{2} + 6x + 9) m^{2}. But the surface of a cube has the shape of a square. So that,

Area of a square = length x length

                            = l^{2}

By factorizing the area,

x^{2} + 6x + 9 = x^{2} + 3x + 3x + 9

                  = (x^{2} + 3x) (3x + 9)

                  = x(x +3) + 3(x + 3)

                  = (x + 3)(x + 3)

                  = (x + 3)^{2}

x^{2} + 6x + 9 = (x + 3)^{2}

Thus,

(x + 3)^{2} = l^{2}

find the square root of both sides

l = (x + 3)

length of each edge = (x + 3)

3 0
3 years ago
mark wants to paint a mural. He has 1 1/3 gallons of yellow paint, 1 1/4 gallons of green paint, and 7/8 gallon of blue paint. m
KatRina [158]

we have

Yellow paint

1\frac{1}{3} =(3*1+1)/3\\ \\ =\frac{4}{3} gal

Find the
amount of yellow paint left after painting the mural

(\frac{4}{3} -\frac{3}{4} )=(4*4-3*3)/12\\ \\ =\frac{7}{12} gal

Green paint

1\frac{1}{4} =(4*1+1)/4\\ \\ =\frac{5}{4} gal

Find the
amount of green paint left after painting the mural

(\frac{5}{4} -\frac{3}{4} )=(5-3)/4\\ \\ =\frac{2}{4} gal

Blue paint

\frac{7}{8}gal

Find the
amount of blue paint left after painting the mural

(\frac{7}{8} -\frac{3}{4} )=(7-2*3)/8\\ \\ =\frac{1}{8} gal

Find the
total amount of paint left after painting the mural

\frac{7}{12} +\frac{2}{4} +\frac{1}{8} =\frac{(2*7+6*2+3*1)}{24} \\ \\ =\frac{29}{24} gal

\frac{29}{24} =1\frac{5}{24} gal

therefore

the answer is

1\frac{5}{24} gal

7 0
3 years ago
Read 2 more answers
Hoses A and B spout water at different constant rates, and hose A can fill a certain pool in 6 hours. Hose A filled the pool alo
Naddik [55]

Answer:

18 hours

Step-by-step explanation:

Let the volume of the pool be x. Since pipe A filled the  pool in 6 hours, the rate of pipe A = x / 6.

Let the rate of pipe b be y, Hose A filled the pool alone for the first 2 hours, this means that the volume filled in the 2 hours is x/6(2 hours) and the two hoses, working together, then finished filling the pool in another 3 hours for the 3 hours the volume filled is x/6(3) + y(3).  hence the total time is:

x/6(2) + x/6(3) + y(3) = x

x/3 + x/2 + 3y = x

Multiply through by 6:

2x + 3x + 18y = 6x

5x + 18y = 6x

18y = x

y = x/18

The rate of pipe B is x/18, this means it would take pipe B 18 hours to full the pool alone

8 0
4 years ago
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