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Nitella [24]
3 years ago
15

Which equation represents this situation?

Mathematics
1 answer:
aalyn [17]3 years ago
7 0

Answer:

dirk =13.25 hours

charlie =11 75 hours

Step-by-step explanation:

c+d=25------(1)

d-1.5=c-----(2)

from (1),

c+d=25

c=25-d-----(3)

substitude (3) into (2)

d-1.5=c

d-1.5=25-d

2d=26.5

d=13.25

if d=13.25 hours

c+d=25

c+13.25=25

c=25-13.25

c=11.75

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A farmer planted 2/5 of his forty acres in corn and another 3/10 of his land in wheat
Mariana [72]

Answer:

7/10

Step-by-step explanation:

8 0
3 years ago
Justin runs 7 miles in 60 minutes. At the same rate, how many miles would he run in 24 minutes?
posledela

Answer:

2.8 Miles

Step-by-step explanation:

If 7m is 60mins

How many miles is 24 mins

solution:

take unknown miles to be 'x'

7m=60mins

Xm=24mins

cross multiply

7×24/60=2.8m

x=2.8miles

4 0
2 years ago
A rock with mass of 5.0 kg is carried up a small hill 10 meters high. What is the potential energy of the rock at the hilltop?
Sonja [21]

490J

Step-by-step explanation:

Given parameters:

Mass of rock = 5kg

Height of hill = 10m

Unknown:

Potential energy at the hilltop = ?

Solution:

Potential energy is the energy at rest of a body. it is given as:

                P.E = mgh

m is the mass of the body

g is the acceleration due to gravity = 9.8m/s²

h is the height of the hilltop

     P.E = 5 x 10 x 9.8 = 490J

Learn more:

Potential energy brainly.com/question/10770261

#learnwithBrainly

5 0
3 years ago
At a certain hospital 39080 patients had their falls reported in the winter of 2004, thisrose to 42045 patients in the winter of
Natali [406]
Answer:

Percentage rise in patients from 2004 to 2014 = 7.59%

Explanation:

The number of patients in 2004 = 39080

The number of patients in 2014 = 42045

Increase in the number of patients = (The number of patients in 2014) - (The number of patients in 2004)

Rise in the number of patients = 42045 - 39080

Rise in the number of patients = 2965

\begin{gathered} \text{Percentage rise in patients = }\frac{\text{Rise in the number of patients}}{\text{Number of patients in 2004}}\times100 \\ Percentage\text{ rise in patients = }\frac{2965}{39080}\times100 \\ \text{Percentage rise in patients = }7.59\text{ \%} \end{gathered}

Percentage rise in patients from 2004 to 2014 = 7.59%

4 0
1 year ago
Maya mailed 3 packages. their weights were 4.5 lbs,2.75 lbs,and 3.4 lbs.
Gennadij [26K]
The total weight was 10.65

Explanation: Since there is only one number in the hundredth place, i didn’t need to add. Instead i put that number as my hundredth place AKA 5. then i added the tenth place which was 5+7+4 which = 16. i carried the one over. then i added the ones place. 4+2+3= 9. the one i carried over got added to the 9. therefore my final answer was 10.65
8 0
2 years ago
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