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
puteri [66]
2 years ago
14

4. Tell whether the systems have one solution,

Mathematics
1 answer:
hjlf2 years ago
5 0

Answer:

x= 2,

,y = 5

Step-by-step explanation:

Solve by Substitution :

// Solve equation [1] for the variable y

[1] y = 5x - 5

// Plug this in for variable y in equation [2]

[2] -4x + 2•(5x-5) = 2

[2] 6x = 12

// Solve equation [2] for the variable x

[2] 6x = 12

[2] x = 2

// By now we know this much :

x = 2

y = 5x-5

// Use the x value to solve for y

y = 5(2)-5 = 5

Solution :

{x,y} = {2,5}

You might be interested in
-4+5|4x-4|=21 solve for x
grin007 [14]

Answer:

Step-by-step explanation:

hello :

-4+5|4x-4|=21

add 4 : 5|4x-4| = 25

divid by 5 :  |4x-4| = 5  means : 4x-4 = 5   or 4x-4 = -  5  

4x=9 or 4x =-1

x= 9/4 or x = - 1/4

5 0
2 years ago
Will mark brainliest if right. Thank you.
Delicious77 [7]

Answer:

Step-by-step explanation:

sides of triangle are (4+3) and (2+3)

or 7,5

area of triangle=1/2×7×5=35/2=17.5 cm²

area of rectangle=3×2=6 cm²

area of shaded region=17.5-6=11.5 cm²

4 0
2 years ago
Solve the riddle i am 6 more than 2 times 9 what number am i now make up your own riddle for the number 68
Lesechka [4]

The riddle answer is 24.

A riddle for the number 68 is: 12 more than 14 times 4


5 0
2 years ago
Read 2 more answers
The perimeter of an isosceles trapezoid is 28 in and the ratio of lengths of its bases is 5:3. Find the lengths of the sides of
Natalka [10]
The measurements are:
b₁ = 8.4 inches; b₂ = 14 inches; leg₁ = 2.8 inches; leg₂ = 2.8 inches

Let x = length of base and leg

The formula for perimeter of isosceles trapezoid is P = b₁ + b₂ + 2(leg)
Where: b = base

       P = b₁ + b₂ + 2(leg)
     28 = 3x + 5x + 2(x)
     28 = 8x + 2x
28/10 = 10x/10
    2.8 = x

Now, substitute the values:
       P = b₁ + b₂ + 2(leg)
     28 = 3(2.8) + 5(2.8) + 2(2.8)
     28 = 8.4 + 14 + 5.6
     28 = 28

Hence the measurements are:
b₁ = 8.4 inches; b₂ = 14 inches; leg₁ = 2.8 inches; leg₂ = 2.8 inches
8 0
3 years ago
the weight of a nickel is 80% of the weight of a quarter.if a nickel weighs 5grams how much does a quarter weigh?
Rasek [7]
Just divide 100% by 80% and multiply that answer by 5. I'm pretty sure that's how you do it.
8 0
3 years ago
Other questions:
  • Analyze the diagram below and complete the statement that follows.
    12·2 answers
  • (8) = ཏ - (x + 3)<br> what is the value of 8
    10·1 answer
  • Stephanie has $152 in the bank. She withdraws $20. Then she deposits $84. Write an addition expression to represent this situati
    12·1 answer
  • PLEASE HELP .!!! ILL GIVE BRAINLIEST.. *EXRTA POINTS* .. DONT SKIP :(( !
    5·1 answer
  • Trayvion measured his basketball rim. The radius of the rim is \large 7\frac{1}{2} inches. What is the circumference of the rim?
    14·1 answer
  • Amount Accumulated: ?
    15·1 answer
  • -6 \times 5 = ?−6×5=?minus, 6, times, 5, equals, question mark
    12·1 answer
  • A)How much of the following shape is shaded?
    10·1 answer
  • What is the answer to, one half of 9?
    5·1 answer
  • In your notebook, set up the following subtraction in a vertical format and select the correct answer. Find 2p 2 3p - 4 less - 2
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!