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
Tom [10]
3 years ago
14

I need someone to help me make these equations!

Mathematics
1 answer:
Sauron [17]3 years ago
6 0
''Two one-step equationsx + 7 = 10x = 7-7 = 10 - 7x = 3
y + 47 = 20y = 47 - 47 = 20 - 47y = 27
Two equations that contains fractions + 2 + 3 = 55/5 =  or 1
 + 12 + 7 = 1919/20 = 

Distributive property2x - 4(+4) = 10(+4)2x - 16 = 402x - 16 + 16 = 40 + 162x = 5656 ÷ 2 = 28x = 28
Decimalsx = 1.2 + 7.8 ÷ 3(5)1.2 + 7.8 = 99 ÷ 3 = 33 x 5 = 1515.0
One real-world problem that is solved by an equationJohnny deposits $2,000 into a bank account. If the interest rate is 5% per month how much will he have gained in interest in 6 years?5% of 2,000 is 100100 x 12 = 1,2001,200 x 6 = 7,200Johnny would gain $7,200 in 6 years''

hope this helps
 
You might be interested in
1. Find all the zeros of the polynomial P(x) = 2x^3 – x^2 – 4x+3<br>​
umka21 [38]

Answer:

nicce

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Multiply (3x + 2) (4x-5)
Rama09 [41]

Answer:

12x^2-7x-10

Step-by-step explanation:

I did binomial into binomial method

3x(4x-5)+2(4x-5)

12x^2-15x+8x-10

12x^2+(-15+8)x-10

12x^2-7x-10

6 0
2 years ago
Read 2 more answers
3. Spiral Review: Solve the equation algebraically. Show all work. Circle your final solution.
AlexFokin [52]

Answer:

z=-13/7

Step-by-step explanation:

1. Add 3z(7z+5=-8)

2. Subtract 5(7z=-13)

3. Divide 7(z=-13/7)

3 0
2 years ago
Please help ! I’ll mark you as brainliest if correct.
deff fn [24]

Answer:

  • D = -87
  • Dx = 174
  • Dy = -435
  • Dz = 0
  • (x, y, z) = (-2, 5, 0)

Step-by-step explanation:

The determinant of the coefficient matrix is ...

  D=\left|\begin{array}{ccc}2&5&3\\4&-1&-4\\-5&-2&6\end{array}\right|\\\\=2(-1)(6)+5(-4)(-5)+3(4)(-2)-2(-4)(-2)-5(4)(6)-3(-1)(-5)\\\\=-12+100-24-16-120-15=\boxed{-87}

The other determinants are found in similar fashion after substituting the constants on the right for each of the above matrix columns, in turn.

Those determinants are ...

  D_x=\left|\begin{array}{ccc}21&5&3\\-13&-1&-4\\0&-2&6\end{array}\right|=174

  D_y=\left|\begin{array}{ccc}2&21&3\\4&-13&-4\\-5&0&6\end{array}\right|=-435

  D_z=\left|\begin{array}{ccc}2&5&21\\4&-1&-13\\-5&-2&0\end{array}\right|=0

The solutions are ...

  x = 174/-87 = -2

  y = -435/-87 = 5

  z = 0

That is, (x, y, z) = (-2, 5, 0).

6 0
2 years ago
PLZ HELP Which represents a quadratic function? f(x) = 2x3 + 2x2 – 4 f(x) = –7x2 – x + 2 f(x) = –3x + 2 f(x) = 0x2 + 3x – 3
just olya [345]

Answer:

f(x) = -7x² - x + 2

Step-by-step explanation:

Quadratic functions are set up in the form ax² + bx + c. f(x) = 0x² + 3x -3 is also set up in this format but 0x² would simplify to 0 which means the equation is actually f(x) = 3x-3 and does not fit in the quadratic function format. The other equations are also not set up in ax² + bx + c.

5 0
2 years ago
Other questions:
  • Translate the sentence " Twice x is 5 " to an equation
    8·2 answers
  • Ali wants to buy a piano. The piano measures 19/4 ft long. She has a space 5ft long for the piano in her house. Does she have en
    9·2 answers
  • What must be true to define the measure of a distance of an arc between the points A and B on a circle? A unit of measure must b
    8·2 answers
  • What is the distance between (-4,6) and (3,-7)
    13·1 answer
  • Expand.If necessary combine like terms.(1+6x)(1-6x)
    10·2 answers
  • The above proof shows that the sum of an irrational and rational number is always____. Explain
    14·2 answers
  • There are about 16 kilometers in 10 miles. About how many kilometers are in 5 miles
    11·1 answer
  • On a trip to Griffith Observatory, Dave rode his bicycle six more than twice as many miles in the afternoon as in the morning. I
    6·1 answer
  • WHO EVER ANSWERS FIRST I WILL GIVE THE CROWN-
    11·1 answer
  • A bricklayer supports a 5 meter ladder. Against a vertical wall. The foot of ther ladder is 3 meters from the wall. Calculate th
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!