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3 years ago

Which is the solution to the equation represented by the model below

Mathematics

2 answers:

Kruka [31]3 years ago

5 0

Answer:

Third option, $x=2$

Step-by-step explanation:

By observation, we can infer that

$3x+8=4x+6$ .

Subtract 8 from both sides:

$3x+8-8=4x+6-8$

$3x=4x-2$

Subtract 4x from both sides:

$3x-4x=4x-2-4x$

$-x=-2$

Divide both sides by -1:

$\frac{-x}{-1}=\frac{-2}{-1}$

$x=2$

Snowcat [4.5K]3 years ago

4 0

Answer:

c; x=2

Step-by-step explanation:

You can see that there are 3 x's and 8 1's (3x+8), as well as 4 x's and 6 1's (4x+6).

The equation is 3x+8=4x+6

Subtract 3x and subtract 6: 2=x

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An unopened cereal box contains 15/28 cubic foot of cereal. If the box is full, and the length and height of the box are5/7 and

kenny6666 [7]

Volume is height times length times width

V = 15/28 ft^3
h = 11/2 ft
l = 5/7
w = ?

So the unsolved equation is:
V = h × l × w

Separate the w by diving both sides by h and l:
$w = \frac{v}{hl}$
Then plug in the numbers:
$w = \frac{( \frac{15}{28}) }{( \frac{11}{2} ) \times ( \frac{5}{7}) }$
Which, with the fractions flipped, equals:
$w = ( \frac{15}{28} ) \times ( \frac{2}{11} ) \times ( \frac{7}{5} ) \\ w = \frac{210}{1540}$
$w = \frac{3 \times 7 \times 10}{10 \times 2 \times 7 \times 11} \\ w = \frac{3}{2 \times 11} \\ w = \frac{3}{22}$
The width of the box is 3/22 ft

6 0

3 years ago

Finding slopes. Please do as many questions as you can.

Montano1993 [528]

Answer:

Step-by-step explanation:

slope are hard tbh

6 0

2 years ago

Read 2 more answers

Please help, and show work pleaseee<br> x+3y=-14<br> 2x-4y=30

Marrrta [24]

Answer:

x=3.4 y=-5.8 (the steps are in order and I explained to the best of my ability)

Step-by-step explanation:

x+3y=-14 substitute the x for -14-3y in the second problem

x=-14-3y 2(-14-3y)-4y=30

-28-6y-4y=30

-10y=58

y=-5.8

substitute the y in the first equation for -5.8

x+3(-5.8)=-14

x-17.4=-14

x=3.4

4 0

3 years ago

AB = 18, BC = 9, then AC = __

Anarel [89]

Answer:

Step-by-step explanation:

18+19=27

6 0

3 years ago

Write the standard form of the equation of the circle with radius 4 and center (−7,−6).

olasank [31]

The equation of a circle is written as (x-h)^2 +(y-k)^2 = r^2

h is the x value of the center and k is the y value of the center and r is the radius.

Replace h, k and r with the given information:

(x- -7)^2 + (y - -6)^2 = 4^2

Simplify:

(x+7)^2 + (y+6)^2 = 16

4 0

3 years ago