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xenn [34]
3 years ago
7

The sum of two numbers is 72, and their difference is 40. Find the numbers.

Mathematics
2 answers:
Naddik [55]3 years ago
7 0

Answer:

the answers are 51 and 11

Vedmedyk [2.9K]3 years ago
5 0

Answer:first number is 51 second number is 11

Step-by-step explanation:

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Which of the following fractions is greater than -4/5 but less than -3/4
choli [55]

Answer:

B. -19/25

Step-by-step explanation:

You are looking for an answer that is greater than -4/5 (which is equal to -0.80) but less than -3/4 (which is equal to -0.75). So, you can easily convert the fractions to decimals by dividing.

-33/50 = -0.66, which is greater than -0.75, so it can be eliminated.

-19/25 = -0.76, which fits our parameters, so it is the answer.

-19/20 = -0.95, which is less than -0.80, so it can be eliminated.

-7/10 = -0.70, which is greater than -0.75, so it can be eliminated.

7 0
4 years ago
had already graded 40 papers and he still needed to grade more. Write an equation for how many papers he is grading if he contin
OLga [1]
Y = 40 + 4m
m = minutes
y = total papers graded
6 0
3 years ago
Solve: <br>x + y = 7<br>3x - 2y = 11<br><br>By using Substituting method.​
Salsk061 [2.6K]

\large\underline{\sf{Solution-}}

\sf  \longmapsto x + y = 7 \: \: - - - (i)

\sf  \longmapsto 3x - 2y = 11 \: \: - - - (ii)

<u>By first equation,</u>

\sf  \longmapsto x + y = 7

\sf  \longmapsto x = 7 - y

<u>Now, we can find the original value of y.</u>

\sf \longmapsto 3x - 2y = 11

\sf  \longmapsto 3(7 - y) - 2y = 11

\sf  \longmapsto 21 - 3y - 2y = 11

\sf  \longmapsto 21 - 5y = 11

\sf  \longmapsto - 5y = 11 - 21

\sf  \longmapsto - 5y =  - 10

\sf  \longmapsto y = \dfrac{ - 10}{ - 5}

\sf  \longmapsto y = 2

<u>Now, we can find the original value of x.</u>

\sf  \longmapsto x + y = 7

\sf  \longmapsto x + 2 = 7

\sf  \longmapsto x = 7 - 2

\sf  \longmapsto x = 5

Therefore, the values of x and y are 5 and 2 respectively.

8 0
3 years ago
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The world's fastest fish, a sailfish, swims at a of 69 miles per hour. Is the distance a sailfish swims propotial to the number
Eddi Din [679]
Yes, the distance a sailfish swims propotional to the number of hours it swims
4 0
4 years ago
Equation for $.10 times 30 equals three dollars
sukhopar [10]

Answer:

30 (.1)=3

or you could do

30×.1=3

you could use either one but I dont know what the person your turning the work in requires the equation to look like

6 0
3 years ago
Read 2 more answers
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