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Vinvika [58]
4 years ago
11

A doctor observes a graph that shows the electrical activity (in volts) of the heart of a patient over a period of time (in seco

nds). Each local maximum of 0.004 volts corresponds to one heartbeat. The doctor needs to calculate the heart rate of the patient in beats per minute. What is the heart rate of this patient?
____ beats per minute
​

Mathematics
2 answers:
Doss [256]4 years ago
7 0

Answer:

60 beats per minute

Step-by-step explanation:

I just did it on Khan and it was correct.

hodyreva [135]4 years ago
6 0

Answer:

90 beats per minute

Step-by-step explanation:

By looking at the graph, we see that exactly at second 6, the 9th beat occurs. We can take that to beats/min by multiplying that relation by 10 (since there are ten 6sec in one minute).

9beats every 6sec * 10 = 90beats/min

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Rina8888 [55]
The right answer is B
4 0
3 years ago
Target has a television on sale 20% off the regular price of $500.00. How much is the price after the markdown?
kolezko [41]

Answer:

What is 20 percent of 500.? = 100.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
The length of a rectangle is (x-8) units, and its width is(x+11) units. What is an expression for this.
Ipatiy [6.2K]

Answer:

(x²+3x-88) square units

Step-by-step explanation:

Area of a rectangle = Length × Width

Given

length of a rectangle is (x-8)units

Its width is (x+11) units.

Required

Expression for the area of the rectangle

Substituting the given function into the formula.

Area of the rectangle = (x-8)(x+11)

Area of the rectangle = x(x)+11x-8x-88

Area of the rectangle = x²+3x-88

Hence the expression that represents the area of the rectangle is x²+3x-88 units²

8 0
3 years ago
Jada has 4 meters of ribbon. How many pieces of ribbon 1 meter long can she cut from it?
Vesnalui [34]
She can cut 4 pieces from the ribbon.
3 0
3 years ago
Read 2 more answers
Order the fraction to least to greatest 7\9 13\18 5\6 2\3
Olegator [25]
First, you need to have a common denominator for all of them, in this case, they can all go in 18 so that will be the common denominator. 

\frac{7}{9} x \frac{2}{2} = \frac{14}{18}
\frac{5}{6} x \frac{3}{3} =  \frac{15}{18}
\frac{2}{3} x \frac{6}{6} = \frac{12}{18}
\frac{13}{18}

Now you can tell which ones are the biggest or smallest. So from least to greatest you would have this.

\frac{2}{3} , \frac{13}{18} , \frac{7}{9} , \frac{5}{6}

7 0
3 years ago
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