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krok68 [10]
3 years ago
11

Solve the equation. Enter the answer as an equation showing the value of the

Mathematics
2 answers:
Mice21 [21]3 years ago
8 0
<h3><u>Question</u><u>:</u><u>-</u></h3>

Solve the equation. Enter the answer as an equation showing the value of the variable (like s = -6, or w=1/2). Use a slash mark (/) as the fraction bar if necessary

X/10 = 140

<h3><u>Answer</u><u>:</u><u>-</u></h3>

x = 1400

<h3><u>Explanation</u><u>:</u><u>-</u></h3>

<u>\rightarrow \:  \frac{x}{10}  = 140</u>

Multiply 10 on each side,

\rightarrow  \:  10 \times \frac{x}{10}  = 140 \times 10

\rightarrow \: 1 × x= 1400

\tt \red \rightarrow  \: x = 1400

marin [14]3 years ago
3 0

Answer:

x = 1400

Step-by-step explanation:

→ x/10 = 140

Multiply 10 on both sides.

→ x/10 × 10 = 140 × 10

→ x × 1 = 1400

→ <u>x</u><u> </u><u>=</u><u> </u><u>1</u><u>4</u><u>0</u><u>0</u>

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2 3<br> —- = —-<br> x + 2 2x - 4
Ierofanga [76]

Answer:

23x-4

Step-by-step explanation:

x+22x-4 ( If a <u>term</u> doesn't have a coefficient, it is considered that the coefficient is 1

1x+22x-4 Collect <u>like terms</u> by adding their coefficients (1+22)x-4

Then, add the numbers.

(1+22)x-4

23x-4

8 0
3 years ago
Which equation has the correct sign on the product?
makvit [3.9K]

Answer:

A

Step-by-step explanation:

6 0
3 years ago
The edge of a cube was found to be 30 cm with a possible error in measurement of 0.2 cm. Use differentials to estimate the maxim
rjkz [21]

Answer:

Maximum volume error = ±540 cm³

Relative error = 0.02

Percentage error = 2%

Step-by-step explanation:

Relative error : The ratio of volume error to the total volume.

Percentage error: The product of relative error and 100.

The volume of a cube is = side^3

v =x³

Differentiate with respect to x

\frac{dv}{dx} = 3x^2

\Rightarrow dv = 3x^2 dx

Here are x = 30 cm and dx= ±0.2 cm

∴ dv = 3×(30 cm)² (±0.2 cm)

      =±540 cm³

The volume of the cube = 30³ cm ³ = 27,000 cm³

Then the relative error

=\frac{dv}{v}

=\frac{540 cm^3}{27,000 cm^3}

= 0.02.

The percentage error

= (0.02×100)

=2%

7 0
3 years ago
Please help solve 3x + 11 /2 = -2
Goryan [66]
This equation works for 3x+11 over 2
(3x + 11) /2 = -2
(3x + 11) = 4
3x = -7
x = 2.3333(repeating) or 2 1/3
6 0
3 years ago
Read 2 more answers
Which ordered pair is the solution to the system of equations?
denis23 [38]
X+y=-1
x-3y=11
------------- (subtract equation)
4y = -12
y = -12/4
y= -3
-------------- (substitute y)

x-3=-1
x=-1+3
x=2


Answer ----> A (2,-3)





-5x-3y=12
x-3y=-6

you want to multiply the top equation by -1 to swap the signs and make the x's positive like the bottom equation

5x+3y=-12
x-3y=-6

then you have to multiply every value in the bottom equation by 5 so you are able to subtract it from the top equation

5x+3y=-12
5x-15y=-30
---------------- (subtract)
18y=18
y=18/18
y=1
------------------ (substitute y)
x-3=-6
x=-6+3
x=-3

answer = (-3,1)
7 0
3 years ago
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