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
xenn [34]
2 years ago
9

Solve the system by substitution. x = -2y + 5 -8x – 3y = -1

Mathematics
1 answer:
mote1985 [20]2 years ago
3 0
Jejdjejjejejejejejjejejeejjeje
You might be interested in
The length of a rectangle represented by 4a plus 3B and it's width is represented by 3a minus 2b. Write a polynomial for the per
Svetach [21]
The polynomial for the perimeter starts from the formula for the perimeter of a rectangle as written below:

Perimeter = 2L + 2W = 2( L + W)
Perimeter = 2(4A + 3B + 3A - 2B)
Perimeter = 2(7A - B)
Let perimeter be P,
P = 14A - 2B  --> this would be the polynomial

Let's substitute A=12 to the polynomial:
P = 14(12) - 2B = 168 - 2B
To determine the minimum P, set it to 0.0001.
0.0001 = 168 - 2B
B = 83.999 or 84

Thus, the minimum perimeter is achieved if the value of B approached to 84.

7 0
3 years ago
selim is ordering concrete spheres to place as barriers in the city park. the spheres cost $2 per square foot, and selim can spe
hoa [83]

The maximum diameter of the spheres he can purchase is  1. 78 ft. Option C

<h3>How to determine the diameter</h3>

The formula for area of a sphere is expressed as;

Area = 4 πr²

If Selim paid $2 per square foot and have a maximum of $20 per square

The area he can purchase is;

= $20/$2

= 10$

Substitute the value into the formula

10 = 4πr²

10 = 4 × 3. 142 ×  r²

10 = 12. 568r²

Make 'r²' the subject

r² = 10/ 12. 568

r² = 0. 79

Find the square root of both sides

r = √0. 79

r = 0. 89

But diameter = 2(radius)

Diameter = 2 × 0. 89 = 1. 78 ft

Thus, the maximum diameter of the spheres he can purchase is  1. 78 ft. Option C

Learn more about spheres here:

brainly.com/question/10171109

#SPJ1

8 0
1 year ago
Determine the sum: (14abc2 + 12a2b + 16b2c) + (−3abc2 + 2b2c).
Alenkinab [10]
The answer is 11abc^2 + 12a^2b + 18b^2c because:
14abc^2-3abc^2 is 11abc^2
12a^2b + 0 = 12a^2b
16b^2c +2b^2c = 18b^c
4 0
3 years ago
Question 15
Hoochie [10]

Answer:

10% chance or 1/10

Step-by-step explanation:

5 out of the 100 cards are free lunches simplified it would be

1/10

8 0
3 years ago
Read 2 more answers
what is 7.5 x 10 to the negative 3rd power + 5.8 x 10 to the negative 3rd power in scientific notation
Nastasia [14]
The answer is 1.33*10^-3, or 0.0133.
6 0
3 years ago
Other questions:
  • Daisy cut a square out of a sheet of graph paper. The square has an area of 16 square cm. She then trimmed 1 cm from each side o
    8·1 answer
  • Tom’s Sporting Goods pays $37 each for a certain brand of basketball.Tom marks up the price by 45%.To the nearest cent,what is t
    8·1 answer
  • PLEASE HELP!! (I'LL GIVE BRAINLY!)
    8·1 answer
  • find the missing measurement lesson 13.1, 13.2 A=62.5 length is 14 and width is 11 what is the highth.​
    15·1 answer
  • 10000 people were surveyed and 60% liked pizza. What is the absolute value equation that describes the interval?
    10·1 answer
  • The sum of 3 consecutive multiples of 4 is 120. Find the numbers.
    12·1 answer
  • There are 3 times as many males as females on the maths course at university. What fraction of the course are female?
    10·1 answer
  • N–52=12 answer plssss
    12·2 answers
  • What is the value of 1,364 ÷ 10⁴?
    5·2 answers
  • (4.x-7)(x - 1) = 0<br> Help please
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!