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Slav-nsk [51]
3 years ago
15

In 10 minutes,a heart can beat 700 times.At this rate,in how many minutes will a heart beat 140 times? At what rate can. a heart

beat?
Mathematics
1 answer:
cestrela7 [59]3 years ago
4 0

700/10 = 70

A heart beats 70 times in a minuet.

70 * 2 = 140

It takes 2 minuets for a heart to beat 140 times.

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The rent for an apartment was $11,400 per year in 2012. If the rent increased at a rate of 4% each year thereafter, use an expon
Bad White [126]

Answer:

if the 4% continues to be 4% of 11,400 and not the new number, the answer is:  14592.

Step-by-step explanation:

7 0
3 years ago
Graph f(x)=2^x+1 and g(x)=−x+4 on the same coordinate plane.
12345 [234]

Given f(x)= 2^x +1

g(x)= -x +4

We have to find the value of x which satisfy the condetion : f(x)= g(x)

Solution : let us place expression given for f(x) and g(x) equal to each other

This gives us : 2^x + 1 = -x+ 4

Let us bring all x terms on left side only

we add x on both sides this makes : 2^x +1 +x = -x+ 4 +x

on the right side -x and +x becomes a "0"

we get : 2^x + 1 + x = 4

* let us nopw bring all the numeric terms on left side only

subtract 1 from both sides : 2^x + 1 + x - 1 = 4- 1

on the left side +1 and -1 becomes a "0"

on the rigth side 4-1 becomes a "3"

equation look like : 2^x + x = 3

We can see the right side is an odd number

on the left side there is sum of two terms one of them is 2^x which is an even number always .

we know that sum of an even number with an even number result out an even number

but we want a result as an odd number (3)

this suggest that x should be an odd number .

Also the sum of 2^x and x is 3 so 2^x should be smaller than 3

the smallest value ( x being an integer )

2^x can have is : 2^1= 2 which is for x=1

let us check plugging x= 1 . 2^1 + 1 = 3 which is TRUE

Hence answer is x= 1

8 0
3 years ago
Read 2 more answers
Ben can type 2/5 of a page of an essay in 1/2 minute. How much time would
DiKsa [7]

Answer:

1.25 minutes, or 1 minute 15 seconds

Step-by-step explanation:

We know that is speed is 0.4 pages per 0.5 minutes. This is 0.8 pages per 1 minute. If we divide 1/0.8, we get 1.25 or 1 minute 15 seconds.

4 0
2 years ago
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If there are 30 flower bouquets, 4/5 of the bouquets are daises, the rest are tulips. How many bouquets are tulips?
erastova [34]

Answer:

6 bouquets of tulips

Step-by-step explanation:

<h2><u>first find out the number of daisies.. </u></h2>

this is 4/5 * 30

= 24

there are 24 daises...

now to find the number of tulips are:

30 - 24 = 6

there a<u> 6 bouquets of tulips. </u>

4 0
3 years ago
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Subtract. -21 - (-13)
Burka [1]

Answer:

-8

Step-by-step explanation:

-21-(-13)

=-21+13

=-8 is the answer......

3 0
2 years ago
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