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
Salsk061 [2.6K]
3 years ago
13

Systems of equations 5x+y=7 20x+2=y

Mathematics
1 answer:
saveliy_v [14]3 years ago
7 0

Step-by-step explanation:

5x+y=7

20x+2=y

put y value in first equation

5x+(20x+2)=7

25x=5

x=5

now put x value to determine y

as we know 20x+2=y

20(5)+2=y

y=102

You might be interested in
Alex drew the triangles shown. What correctly describes the triangles
KATRIN_1 [288]

Answer:

Congruent triangles

Step-by-step explanation:

6 0
3 years ago
True or false, rotational symmetry is the quality a design has if it maintains all characteristics when it is rotated about a po
Andru [333]
<h2>True.</h2><h2 />

In fact, if a design still looks the same after some rotation, then it has Rotational Symmetry. In this context, this design can be an object, a figure, a thing, etc. So these characteristics is the typical quality or feature of this object, figure or thing. An example of rotational symmetry is the Ferris Wheel when it rotates about the center.

7 0
3 years ago
Read 2 more answers
What is infinity / infinity?
bixtya [17]

Answer:

undefined

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
What is the area of the composite figure? -70 cm2 -100 cm2 -105 cm2 -130 cm2
mr Goodwill [35]

Make two shapes out of it.

The bottom is a rectangle 14 x 5 = 70 square cm

The top is a triangle 1/2 x 12 x 5 = 30 square cm

Total area = 70 + 30 = 100 square cm

4 0
3 years ago
Read 2 more answers
Use the product, quotient, and power rules of logarithms to rewrite the expression as a single logarithm. Assume that all variab
Viefleur [7K]

Answer:

log(x^7·y^2)

Step-by-step explanation:

The applicable rules are ...

... log(a^b) = b·log(a)

... log(ab) = log(a) +log(b)

_____

The first term, 7log(x) can be rewritten as log(x^7). Note that an exponentiation operator is needed when this is written as text.

The second term 2log(y) can be rewritten as log(y^2). These two rewrites make use of the first rule above.

Now, you have the sum ...

... log(x^7) +log(y^2)

The second rule tells you this can be rewritten as ...

... log(x^7·y^2) . . . . . seems to match the intent of the 3rd selection

5 0
3 years ago
Other questions:
  • Your total bill at a restaurant is $24.89 you were very pleased with your service so you decide to leave a 20% tip what is the a
    8·1 answer
  • Can someone help me real quick please?
    5·1 answer
  • T x 3/4 for t = 8/9
    8·2 answers
  • A=LW ( solve for W ) <br><br>( please include steps )
    14·1 answer
  • Please can someone help/
    9·1 answer
  • Write 6.453 × 10–^3 without exponents?
    9·1 answer
  • a person can pay $21 for a membership to the history for just $1 per visit what is the maximum number of this has a number of th
    5·1 answer
  • Solve the inequality 3x +2&gt;-7
    5·2 answers
  • Mi mom sed if i ned help then tip it her 10 times 8​
    5·1 answer
  • Please help me!! ASAP! This is grade 8! Properties of Right Angle Triangles
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!