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
Karolina [17]
3 years ago
5

Help Me do not understand

Mathematics
1 answer:
Bas_tet [7]3 years ago
8 0

You need to graph it?  

5x - 2y = 7


you need two points to graph a line

make x = 0

5(0) - 2y = 7

-2y = 7

/-2     /-2

y = 7/-2   (0, -7/2)

make y = 0

5x - 2(0) = 7

5x = 7

/7     /7

x = 7/5   (7/5, 0)  

make those points and join them

You might be interested in
Mr.Ravenheads car averages 23.75 miles per gallon of gasoline. Express this amount as a mixed number in simplest form.
cupoosta [38]

23 is a whole number 75 is the numerator and use 100 as the denominator since 75 is in the 100nths place.  
8 0
3 years ago
3. In a single growing season at the Smith Family Orchard, the average yield per apple tree is 150 apples when the number of tre
g100num [7]

Answer:

<em><u>A.10000</u></em>

<em><u>B.25 more trees must be planted</u></em>

Step-by-step explanation:

⇒Given:

  • The intial average yield per acre y_{i} = 150
  • The initial number of trees per acre  t_{i} = 100
  • For each additional tree over 100, the average yield per tree decreases by 1 i.e , if the number trees become 101 , the avg yield becomes 149.
  • Total yield = (number of trees per acre)*(average yield per acre)

<em>A.</em>

⇒If the total trees per acre is doubled , which means :

total number of trees per acre t_{f} = 2*t_{i} = 200

the yield will decrease by : t_{f} - y_{i}

y_{f}= 150-100= 50

⇒total yield = 50*200=10000

<em>B.</em>

⇒to maximize the yield ,

let's take the number of trees per acre to be 100+y ;

and thus the average yield per acre = 150 - y;

total yield = (100+y)*(150-y)\\=15000+50y-y^{2} \\

this is a quadratic equation. this can be rewritten as ,

     ⇒   =15000+50y-y^{2}\\=15000+625 - (625 - 50y +y^{2})\\=15625 - (y-25)^{2}

In this equation , the total yield becomes maximum when y=25;

<u><em>⇒Thus the total number of trees per acre = 100+25 =125;</em></u>

                 

3 0
2 years ago
What is 5/6mn-7/8mn? Explain how you got it
Misha Larkins [42]
-1/24 is that true?????????
8 0
3 years ago
Solve each triangle round to answers to the nearest tenth
Katyanochek1 [597]
Answer: i added them and i think it’s 60 but i’m not sure
8 0
3 years ago
Instructions: Find the area of the sector. Round your answer to the nearest tenth.
likoan [24]

Answer:

75.7m^2

Step-by-step explanation:

\frac{30}{360}  \times \pi {r}^{2}  \\  \frac{30}{360}  \times  \frac{22}{7}  \times  {17}^{2}  \\  \frac{1}{12}  \times  \frac{22}{7}  \times 289 \\ 75.6904761905 = 75.7

4 0
2 years ago
Other questions:
  • PLEASE ANSWER ASAP
    7·2 answers
  • 10 + (2 x 3)2 ÷ 4 × 1 over 2 to the power of 3
    12·2 answers
  • Barb is making a bead necklace she strings won't Whitebead then three blue beads that one white bead and Soren write the numbers
    15·1 answer
  • Consider the data set on the number line. Determine the interquartile range. A) 7 B) 5.5 C) −2 D) −9
    11·1 answer
  • A store uses a 60% markup rate to sell items to its customers. If one item costs 12$ how much money the store will make on that
    10·1 answer
  • Help me plss!! thank you!!
    6·1 answer
  • Find the slope of the following (-5, -5), (-14, -9)<br> (19,-6), (12, 20)<br> (-14, 17), (14, 17)
    9·1 answer
  • An office supply store sells pencils individually or by the case. Pencils purchased individually cost $0.97 each. One case of fo
    15·1 answer
  • How can I get better in mathematics?
    11·1 answer
  • Consider the system of equations. 20 POINTS NEED HELP ASAP
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!