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3 years ago

X + 2y = 7 x + 5 = 3y What is the resulting equation?

Mathematics

1 answer:

levacccp [35]3 years ago

5 0

Download on your phone photo math it scans the problem and solves it for u

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Pls help I’ll give you brainly

sweet-ann [11.9K]

The answer to this is negative

7 0

3 years ago

I NEED HELP!! please show all work

PtichkaEL [24]

Take the logarithm of both sides. The base of the logarithm doesn't matter.

$4^{5x} = 3^{x-2}$

$\implies \log 4^{5x} = \log 3^{x-2}$

Drop the exponents:

$\implies 5x \log 4 = (x-2) \log 3$

Expand the right side:

$\implies 5x \log 4 = x \log 3 - 2 \log 3$

Move the terms containing x to the left side and factor out x :

$\implies 5x \log 4 - x \log 3 = - 2 \log 3$

$\implies x (5 \log 4 - \log 3) = - 2 \log 3$

Solve for x by dividing boths ides by 5 log(4) - log(3) :

$\implies \boxed{x = -\dfrac{ 2 \log 3 }{ 5 \log 4 - \log 3 }}$

You can stop there, or continue simplifying the solution by using properties of logarithms:

$\implies x = -\dfrac{ \log 3^2 }{ \log 4^5 - \log 3 }$

$\implies x = -\dfrac{ \log 9 }{ \log 1024 - \log 3 }$

$\implies \boxed{x = -\dfrac{ \log 9 }{ \log \frac{1024}3 }}$

You can condense the solution further using the change-of-base identity,

$\implies \boxed{x = -\log_{\frac{1024}3}9}$

5 0

2 years ago

Ion 1(Multiple Choice Worth 2 points)

Alexxandr [17]

Answer:

105.19.

Step-by-step explanation:

Area = 1/2 ac sin B

= 1/2 * 10 * 22 * sin 107

= 105.19..

4 0

3 years ago

There are 218 calories in a kitcat bar. How many calories would there be in 16 kitcat bars??

attashe74 [19]

To find the answer,

multiply the amount of calories in one kit kat bar by 16

218 * 16 = ?

The final answer is 3,488 calories

6 0

2 years ago

Read 2 more answers

Predict the exam grade for a student who studies 10 hours per week.

user100 [1]

Answer:

100

Step-by-step explanation:

100

7 0

2 years ago