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3 years ago

Whats the answer to 12.9 – 3.1) × 6.2 – 2 + 43

Mathematics

2 answers:

Grace [21]3 years ago

5 0

Answer: 101.76

Explanation: Remember PE(MD)(AS)? Parentheses go first. You get 9.8. Then multiply 9.8 with 6.2=60.76. Now, subtract 60.76-2, which you get 58.76. Lastly, add 58.76+43=101.76

suter [353]3 years ago

3 0

Answer:

101.76

Step-by-step explanation:

(12.9−3.1)(6.2)−2+43

=(9.8)(6.2)−2+43

=60.76−2+43

=58.76+43

=101.76

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marissa [1.9K]

Answer:

$\Large\boxed{\sf{y=\dfrac{7}{2} }}$

Step-by-step explanation:

Isolate the variable of y from one side of the equation.

-14=5(3y-10)-5y

First, switch sides.

$\sf{5\left(3y-10\right)-5y=-15}$

Use the distributive property.

DISTRIBUTIVE PROPERTY:

A(B-C)=AB-AC

5(3y-10)

Multiply by expand.

5*3y=15y

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15y-50-5y

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= 10y-50

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Add by 50 from both sides.

10y-50+50=-15+50

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Then, you divide by 10 from both sides.

10y/10=35/10

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Divide the numbers from left to right.

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Divide is another option.

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$\Longrightarrow: \boxed{\sf{y=\dfrac{7}{2}}}$

Therefore, the correct answer is y=7/2.

I hope this helps. Let me know if you have any questions.

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