1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Tresset [83]
2 years ago
8

PLEASE HELP-20 POINTS

Mathematics
1 answer:
avanturin [10]2 years ago
4 0
1.) m + n = 5
m - 3 = n

m + m - 3 = 5
2m - 3 = 5
2m = 8
m = 4

m + n = 5
4 + n = 5
n = 1

Therefore m =4 and n =1

2.) I don't think this one can be done because:
6x - 2(3x - 7) = 12
6x - 6x + 14 = 12
0x + 14 = 12
0x = - 2

3.) 5x + 2(x + 7) = 7
5x + 2x + 14 = 7
7x + 14 = 7
7x = - 7
x = - 1

y = x + 7
y = - 1 +7
y = 6

Therefore x = - 1 and y = 6

4.) I don't think this one can be done either because:
14 - 4x = 2y
Is the same as:
7 - 2x = y
Which is the same as the first equation. You then get 0x because if you substitute y in:
7 - 2x + 2x =7
7 = 7

5.) y = 4x + 6
5x - 4x + 6 = 6
x +6 = 6
x = 0

y = 4x + 6
y = (4x0) + 6
y = 6

Therefore x = 0 and y = 6
You might be interested in
A box is filled with 8 blue cards, 6 red cards, and 6 yellow cards. A card is chosen at a random from the box. What is the proba
salantis [7]

Answer:

14/20 or .7 or 70%

Step-by-step explanation:

Total Number of cards: 20

Number of Red cards: 6

The leftover cards: 20 -6 = 14

The probability of not getting a red = 14/20

14/20 as a decimal = 14/20 = 70/100 = .7

14/20 as a percent = 14/20 = 70/100 = 70%

8 0
3 years ago
I travel 1/10 mile in 1/2 second. how many can i travel in one second
Lorico [155]

Answer:

2/10 miles

Step-by-step explanation:

2 x 1/10 = 2/10

3 0
2 years ago
Solve with elimination , please help.
Svetlanka [38]
This is the answer the x=3 and the y=2
7 0
3 years ago
The histogram below shows information about the number of hamburgers students ate in a month:
Travka [436]
The given histogram represents <span>the number of hamburgers students ate in a month :
</span>
From the histogram we can conclude the following:
(1) 8 students ate (0 - 4) hamburgers 
(2) 3 students ate (5 - 9) <span>hamburgers </span>
(3) 2 students ate (10 - 14) <span>hamburgers
</span>
note: we don't know how many students ate exactly 5 hamburgers.

<span>So, the answer
</span>
The information which is provided in the histogram<span>
</span><span>
</span><span>The number of students who ate 10 hamburgers or more </span>



7 0
2 years ago
Read 2 more answers
At the bank, Sheila made 5 deposits, each in the same amount. Her sister Sherri made 4 deposits, each in the same amount. Each o
irinina [24]

The equation would be 4y=5x       4(x+15)=5x             x+15=y

let x be the amount that Shelia deposits each time

let y represent the amount that Sherri deposits each time

4(x+15)=5x

4x+60=5x

-4x       -4x

60=x

Check:

x+15=y                  60+15=y                        y=75

4(75)=5(60)

300=300

Shelia deposits $60 each time.

5 0
2 years ago
Read 2 more answers
Other questions:
  • Deborah needs to make 16 costumes for the school play. Each costume requires 2 and 1/4 yards of material. How many yards of mate
    15·1 answer
  • ? Question
    7·1 answer
  • The sum of 2/5 of c and 1/5 of w - 9
    11·1 answer
  • 1092 flowers are arranged into 26 vases, with the same number of flowers in each case.how many flowers would be needed to fill 1
    8·1 answer
  • What is the value of the variable
    10·1 answer
  • im thinking of a fraction equivalent to 2/6. the numerator is 8 less the denominator. What is the fraction?
    7·1 answer
  • The cost of having t-shirts printed at two different shops is displayed below. Use the information provided to answer the follow
    9·1 answer
  • 17 + 7x-9=19-2x+ 4 solution/simlified
    9·2 answers
  • Can someone please help me please?
    15·1 answer
  • What is the percent if 200 is the total and 150 is the part?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!