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yarga [219]
3 years ago
13

How do i solve this?: 7-12÷4+2x7

Mathematics
2 answers:
Sunny_sXe [5.5K]3 years ago
7 0
<span>

First you divide and multiply and then you add and subtract
Please tell me how to set up an inequality for this question and how to solve it:

At a video store you have 2 options for renting movies, you can pay $4 per movie or you can pay 10 dollar membership fee and then only pay 1.50/movie. After how many movie rentals will the membership price be less than the cost of renting movies without the membership?


</span>
Ivanshal [37]3 years ago
4 0
You need to use PEMDAS. You don't have parentheses or exponents so you don't need to worry about that. So you multiply 2*7. That equals 14 now your problem is...

7-12/4+14.

Next you do division.

So 12/4 is 3.

7-3+14 equals.

Now you add 3 and 14.

7-17=

Now you subtract and get your answer.
-10 is your answer.
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3 years ago
The heights of a students(in cm) are:54,52,56,54,58,51.<br><br> Find the median.​
kumpel [21]

Answer:

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3 years ago
What is the sum of 6 consecutive numbers that equal 393
ehidna [41]
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8 0
3 years ago
Use the quadratic formula to solve the equation.–x2 + 5x = 3
Karo-lina-s [1.5K]

Given the equation - x² + 5x = 3, which can be rewritten as:

- x² + 5x - 3 = 0

where a = -1, b = 5 and c = -3.

Quadratic formula:

\frac{-b\text{ }\pm\text{ }\sqrt[]{b^2\text{ - 4ac}}}{2a}

Now, we just replace the values of a, b and c on the equation above.

\frac{-5\text{ }\pm\text{ }\sqrt[]{5^2\text{ - 4(-1)(3)}}}{2(-1)}

=

\frac{5}{2}\text{ }\pm\text{ }\frac{\sqrt[]{13}}{2}

4 0
1 year ago
You want to convert 1 kg to milligrams. You already know that 1 kg equals 1000 g explain how knowing that 1 gram equals 1000 mg
butalik [34]
1 kg=1000g*1000mg/1g=1000000mg =10⁶ mg
or you can use proportion

1000g - x mg
1 g     -1000mg
x=1000*1000=1000000mg 

1kg=10⁶ mg
6 0
3 years ago
Read 2 more answers
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