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Alik [6]
3 years ago
9

IN 10 MIN.a heart can beat 700 times. at this rate in how many min. will a heart beat 140 times?At what rate can a heart beat

Mathematics
1 answer:
Mrac [35]3 years ago
8 0
The answer is 5 minutes
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Select all possible numbers that when replaced with the "?" in the set of ordered pairs {(3, 4), (–2, –5), (?, 0)} would create
Irina18 [472]
<span>The answers to this are:
A. –5 
C. 0 
E.7


</span>
6 0
4 years ago
Plz answer very urgent​
Tcecarenko [31]
<h2><em>Answer:</em></h2><h2><em>1</em><em>.</em><em>0</em><em>6</em></h2>

<em>Solution</em><em>,</em>

<em>9</em><em>x</em><em>/</em><em>7</em><em>-</em><em>6</em><em>x</em><em>=</em><em>1</em><em>5</em>

<em>or,</em><em>9</em><em>x</em><em>=</em><em>1</em><em>5</em><em>(</em><em>7</em><em>-</em><em>6</em><em>x</em><em>)</em><em>[</em><em> </em><em>cross </em><em>multiplication]</em>

<em>or,</em><em>9</em><em>x</em><em>=</em><em>1</em><em>0</em><em>5</em><em>-</em><em>9</em><em>0</em><em>x</em>

<em>or,</em><em>9</em><em>x</em><em>+</em><em>9</em><em>0</em><em>x</em><em>=</em><em>1</em><em>0</em><em>5</em>

<em>or,</em><em>9</em><em>9</em><em>x</em><em>=</em><em>1</em><em>0</em><em>5</em>

<em>or,</em><em>X=</em><em>1</em><em>0</em><em>5</em><em>/</em><em>9</em>

<em>X=</em><em>1</em><em>.</em><em>0</em><em>6</em>

<em>Hope </em><em>it</em><em> helps</em>

<em>Good </em><em>luck</em><em> on</em><em> your</em><em> assignment</em>

5 0
4 years ago
On a given day, the coldest surface temperature on the moon, -280°F, is 53.6°F colder than twice the coldest surface temperature
vovikov84 [41]

-113.2 °F

Step-by-step explanation:

Well assign the coldest place on earth on the day as having <em>x</em> temperature

Therefore based on the statement;

2x – 53.6 = -280

2x = -280 + 53.6

2x = - 226.4

X = -113.2

Learn More:

brainly.com/question/3726347

brainly.com/question/11418599

#LearnWithBrainly

8 0
3 years ago
Help would be greatly appreciated
UNO [17]

Answer:2/pi

Step-by-step explanation:

First, name the points. Top Left will be A, Top Right will be B, Bottom Right will be C, and Bottom Left will be D. Now, the area of ABCD is 4. Then, we have to find the area of the circle. The center to the midpoint of AB is 1. The length of the midpoint of AB to B is 1. So, using the Pythagorean Theorem, it will be 1^2 + 1^2 = 2, then it will be sqrt2. Finding the area of the circle will be easy now that we have the radius. sqrt2*sqrt2*pi = 2pi. So, it will be 4/2pi, and simplified, it will be 2/pi.

5 0
3 years ago
Using an old post still need help
finlep [7]

Answer:

12x+20

Step-by-step explanation:

2(5x+2)+2(x+8)

or (simplified)

10x+4+2x+16=12x+20

7 0
2 years ago
Read 2 more answers
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