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3 years ago

-3x+3y=12 Y=x+4 Whats the soultion

Mathematics

1 answer:

lisov135 [29]3 years ago

5 0

The system of equations has infinitely many solutions

Solution:

Given system of equations are:

-3x + 3y = 12 ------- eqn 1

y = x + 4 --------- eqn 2

We have to find the solution to the system of equations

We can use substitution method

Substitute eqn 2 in eqn 1

-3x + 3(x + 4) = 12

-3x + 3x + 12 = 12

-3x + 12 = -3x + 12

If we have terms with same terms on both sides of equal sign, then we have infinitely many solutions

Thus the system of equations has infinitely many solutions

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Bas_tet [7]

Answer: 99 insects altogether.

Step-by-step explanation:

Adding two numbers add a time is easiest, rather than adding all four numbers together.

First, add 37 + 39 =. 76

add 12 to that sum, which equals 88.

76+12=88

to that sum, add the final number, 11.

88+11=99

so there are 99 bugs altogether.

8 0

3 years ago

Musa ships cars into Ghana, Nigeria and Benij republic from the United States of America. The import duty costs are 10%, 25% and

babunello [35]

The Benz C300 markup should be $15525. The markup price for the new Toyota Highland should be $43470

Step-by-step explanation:

For the used Benz C300

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100% +25%=125%

12000*125/100 = $15000

Apply the 15% profit

100%+15%=115%

15000*115/100 =$17250

Apply the 10% discount, reducing the price by 10%

100%-10%=90%

17250*90/100 =$15525

The Benz C300 markup should be $15525

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Initial price = $30,000

Apply import duty for Nigeria for new cars, which is 40%, which is similar to increasing the car price by 40%

100%+40%=140%

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Apply the 15% profit

15%+100%=115%

115/100*42000 =$48300

Apply the 10% discount

100%-10%=90%

48300*90/100=$43470

The markup price for the new Toyota Highland should be $43470

Learn More

Percentage increase and decrease :brainly.com/question/11537235

Keywords : cars, import duty, cost, minimum profit, discount, reseller

#LearnwithBrainly

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3 years ago

The Cheer Club is making a banner for your school using the design shown. The area of the yellow portion is 1 ft2. The expressio

olga nikolaevna [1]

Answer:

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Step-by-step explanation:

Given

$Yellow = 1ft^2$

$Blue = 8z^{-1$

Required

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To do this, we simply substitute 9 for z in $Blue = 8z^{-1$

$Blue = 8 * 9^{-1$

Convert indices to fraction

$Blue = 8 * \frac{1}{9}$

$Blue = \frac{8}{9}$

Hence, the blue section has an area of $\frac{8}{9}ft^2$

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Answer:

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