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Marat540 [252]
3 years ago
9

(7+5) ÷ 6 + 10 to the second power

Mathematics
1 answer:
mr_godi [17]3 years ago
3 0
Remember PEMDAS (Parentheses, Exponents, Multiplication ⇔ Division, Addition ⇔ Subtraction), which is the order you solve parts of an expression.

(7 + 5) ÷ 6 + 10²   Add 7 and 5 (Parentheses)
   12 ÷ 6 + 10²      Square 10 (10 x 10) (Exponents)
  12 ÷ 6 + 100      Divide 12 by 6 (Division)
       2 + 100        Add (Addition)
          102
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Can someone help me on this math problem.
nekit [7.7K]

In the rhombus, the diagonals are perpendicular.

We know, the sum of the measures of the triangle is equal 180°.

Therefore we have the equation:

(2x-15)+3x+90=180

2x-15+3x+90=180        <em>combine like terms</em>

(2x+3x)+(-15+90)=180

5x+75=180        <em>subtract 75 from both sides</em>

5x=105              <em>divide both sides by 5</em>

\boxed{x=21}

<h3>Answer: x = 21°</h3>
4 0
2 years ago
If AB=6, BC=4, and AE=9, find ED
elena-s [515]
It is 7 cuz u - 2 and add 5 and 2-6=4+5=9-2=7
7 0
3 years ago
Last year , Henry opened an investment account with 5800. At the end of the year ,the amount in the account had increased by 29.
joja [24]

Answer:

  • Percent increase in dollar = $1,711
  • Total in account = $7,511

Step-by-step explanation:

The money in the account had increased by 29.5%.

This increase in dollars is:

= Amount in account * percentage increase

= 5,800 * 29.5%

= 5,800 * 0.295

= $1,711

The total in his account was therefore:

= Amount invested + increase

= 5,800 + 1,711

= $7,511

8 0
2 years ago
Rita drove 792 miles in 11 hours.
Talja [164]

Answer:

Step-by-step explanation:

Let's write an expression.

Let's say m is miles and h is hours.

792m = 11h

Simplify.

11 ÷ 11 = 1

792 ÷ 11 = 72

Let's rewrite our expression.

72m = 1h

Using this formula, you can solve anything! :)

6 0
3 years ago
Each cell divides to form two new cells every 30 minutes. If a culture starts out with exactly 100 bacterial cells how many bact
adelina 88 [10]
So, after 30 mins we have:

100*2

After 1 hour: 100*2*2, etc


the number of 2s will be the number of time they will divide: 3 hrs divided by 0.5 hour: this is six times.

So the final number of cells will be:

100* 2^{6} =100 *2*2*2*2*2*2= 100 *8*8=100 *64=6400


So after 3 hrs there will be 6400 cells there!
5 0
3 years ago
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