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3 years ago

36+42=6(6+?) what unknown number makes. the equation true ?

Mathematics

1 answer:

tatuchka [14]3 years ago

3 0

Answer:

36+42=6(6+7)

Step-by-step explanation:

6x6 is 36 and 6 times 7 is 42.

The distributive property makes this equation true.

Multiply the term outside of the parentheses by each term in the parentheses and then add both terms. In this case the terms are 36 and 42.

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Solve the absolute value equation or indicate that the equation has no solution. |x-5|=4

Lelu [443]

Step-by-step explanation:

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1 year ago

Is 5 + 3x1 - x) equivalent to 8 – 8x?

nalin [4]

Answer:

Step-by-step explanation:

5+3x is equal to 8x.

if there is no number in front of a variable, it is understood to be a one. so 1-x would basically be 1-1. this cancels out the x, making it impossible for the equivalent equation to be 8 - 8x

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2 years ago

The total resistance in a circuit with two parallel resistors is 2 ohms and R1 is 6 ohms. Using the equation for R2, in terms of

ivanzaharov [21]

<h2>Answer:</h2>

$R_2$ is 3 ohms

<h2>Step-by-step explanation:</h2>

In a circuit containing two resistors $R_1$ and $R_2$ connected together in parallel, the total resistance $R_T$ is given by;

$\frac{1}{R_T} = \frac{1}{R_1} + \frac{1}{R_2}$ ---------(i)

<em>Make </em> $R_2$ <em> subject of the formula;</em>

=> $\frac{1}{R_2} = \frac{1}{R_T} - \frac{1}{R_1}$

=> $\frac{1}{R_2} = \frac{R_1 - R_T}{R_TR_1}$

=> ${R_2} = \frac{R_TR_1}{R_1 - R_T}$ ---------------(ii)

From the question,

$R_1$ = 6Ω

$R_T$ = 2Ω

Substitute these values into equation (ii) as follows;

=> ${R_2} = \frac{2*6}{6 - 2}$

${R_2} = \frac{12}{4}$

$R_2$ = 3Ω

Therefore, the value of $R_2$ = 3 ohms or $R_2$ = 3Ω

3 0

2 years ago

The quotient of a number and 35 is 100. Create an equation, solve it, and then tell what that number is

kobusy [5.1K]

X/35 = 100...multiply both sides by 35
x = 100 * 35
x = 3500

7 0

3 years ago

The graph shows the cost of some taxi journeys. work out a formula for C in terms of n.

Serga [27]

Given:

The graph of cost of taxi with respect to number of miles.

To find:

The formula for C in terms of n.

Solution:

In the given graph x axis represents the number of miles (n) and y-axis represents the cost of taxi (C).

From the given graph it is clear that, the line passes through the points (0,3) and (5,6). So, the equation of line is

$y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)$

$y-3=\dfrac{6-3}{5-0}(x-0)$

$y-3=\dfrac{3}{5}(x)$

Adding 3 on both sides, we get

$y=\dfrac{3}{5}x+3$

Putting y=C and x=n, we get

$C=\dfrac{3}{5}n+3$

Therefore, the required formula is $C=\dfrac{3}{5}n+3$ .

7 0

3 years ago