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Aleonysh [2.5K]
4 years ago
12

Three times a number minus another number is -3. The sum of the numbers is 11. Find the numbers

Mathematics
1 answer:
MatroZZZ [7]4 years ago
8 0

The first equation is

3x-y=-3

The second equation is

x+y=11

If you sum the two equations you'll cancel y:

4x=8 \iff x=2

And since the sum must be 11, we have y=9.

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HELPPP PLSSSS ITS ALMOST DUE IN 1 HOUR WILL GIVE BRAINLIEST THANKS AND 5 STARSSS
Veseljchak [2.6K]

Answer:

2.5 + 3<em>h</em> = 13

Step-by-step explanation:

2.5 for the hotdog.

3 for each hamburger

3.5$ for each hamburger as h

Hope this Helps!

5 0
3 years ago
If cells are: a1=90, a2=85, a3=80, a4=75, and a5=75. what will be your formula if you are going to get the average?
swat32
The average can be given by the following formula:
 Average = (a1 + a2 + a3 + a4 + a5) / (5).
 Equivalently.
 Average = (ai) / (i).
 Where,
 i = 1,2,3,4, ..., n
 Substituting
 Average = (90 + 85 + 80 + 75 + 75) / (5).
 Average = 81
 answer:
 Average = (a1 + a2 + a3 + a4 + a5) / (5).
 or
 Average = (ai) / (i).
 Where,
 i = 1,2,3,4, ..., n
8 0
4 years ago
Divide 4^2/4^6
deff fn [24]

Step-by-step explanation:

=  {4}^{2}  \div  {4}^{6}

=  {4}^{2 - 6}

=  {4}^{ - 4}

Option → C

\:

=  {4}^{ - 4}

=  \frac{1}{ {4}^{4} }

=  \frac{1}{4 \times 4 \times 4 \times 4}

=  \frac{1}{256}

Option → A

6 0
3 years ago
Help me pls need it really appreciated
navik [9.2K]

Answer:

No, because he has a sum of 0.

Step-by-step explanation:

3+11-5-8-2+1

=14-5-8-2+1

=9-8-2+1

=1-2+1

=-1+1

=0

5 0
3 years ago
Manuel bought 9 pounds of apples. He has eaten 3/4 of a pound so far and has​ $15 worth of apples left. Write and solve an equat
Darina [25.2K]
Manuel bought pounds of apples and eat 3/4 of 1 pound
That is 0.75 pounds
Thus 9-0.75=8.25 pounds of apples left with him.
It is given that the cost of 25 pounds of Apple is dollar.
Let the cost of 1 pound of Apple be x.

8.25 multiply X=15

8.25x. 10
————. = ——
8.25. 8.25

X=10
——
8.25

X=1.818181

X=2

Then the cost of Apple is above two dollars per pound
6 0
3 years ago
Read 2 more answers
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