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olchik [2.2K]
1 year ago
13

39.4 is what percent of 64 round to the nearest 100

Mathematics
1 answer:
Valentin [98]1 year ago
4 0

Answer:61.7

Step-by-step explanation:

maths

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A teenager’s heart pumps an average of 7200 L of blood every 24 hours. What is the rate of change of volume of blood?
love history [14]

Answer:

300L per hour

Step-by-step explanation:

The rate of change of volume of blood pumped by the teenager's heart expresses the volume of blood pumped with respect to hour.

Rate of change of volume of blood = \frac{volume of blood}{time}

                           = \frac{7200L}{24}

                           = 300L/hour

The rate of change of volume of blood by the teenager's heart is 300 litres per hour. This implies that his/ her heart pumps 300 litres of blood every hour.

7 0
3 years ago
Justify each step of this inequality by stating the property that was used to get to each step.
Allushta [10]

Answer:

Step-by-step explanation:

step 1 simplified like terms -11k +3k =8k

step 2 incorrect should be -4k -20 on the left side distributive property

step 3 added 8k to each side

step 4 added 20 to each side

step 5 divided each side by 4

6 0
2 years ago
Which of the fractional factors will result in a product that increases when multiplied by the fraction in the image?
Delicious77 [7]

the fraction in the image is 2 1/2

let's try each choice

1) 2/3 x 5/2 = 10/6 = 5/3

2) 5/4 x 5/2 = 25/8

3) 3/3 x 2 1/2 = 2 1/2

4) 4/5 x 5/2 = 20/10 = 2

who is giving you these questions?

8 0
2 years ago
Find the value of x. I will mark brainliest
Mandarinka [93]

Answer:

The picture isnt working

Step-by-step explanation:

7 0
3 years ago
Ashton is saving money to buy a new bike . he needs $120 but has only saved 60$ so far . how much more money does he need to buy
hjlf
You need to do 120-60=60 and that means he only needs $60.
7 0
2 years ago
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