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
12

What is 4w -7 = 6w + 31 ?

Mathematics
2 answers:
erik [133]3 years ago
7 0
4w - 6w = 31 + 7
-2w = 38
-2w/-2 = 38/-2
w = -19
leonid [27]3 years ago
5 0

Answer:

w = -19

Step-by-step explanation:

Move the 6w to the left and 7 to the right.

4w-6w=31+7

Combine like terms

-2w=38

Divide by negative 2.

w=-19

You might be interested in
Emma has money into savings accounts. One rate is 8% and the other is 12%. If she has $450 more in the 12% account and the total
AveGali [126]

Let's say that the value invested in the account with a rate of 8% is "x", then the amount invested in the account with a rate of 12% is:

x+450

To calculate the total interest we need to calculate the interest of each individual account and sum them:

\begin{gathered} \frac{8}{100}\cdot x=0.08\cdot x \\ \frac{12}{100}\cdot(x+450)=0.12\cdot x+54 \end{gathered}

The total interest is the sum of the two expressions above:

\begin{gathered} 220=(0.08\cdot x)+(0.12\cdot x+54) \\ 220=0.08\cdot x+0.12\cdot x+54 \\ 220-54=0.2\cdot x \\ 166=0.2\cdot x \\ 0.2\cdot x=166 \\ x=\frac{166}{0.2} \\ x=830 \end{gathered}

The value invested in the account with 8% interest is 830, the one invested in the account with 12% interest is 1280.

7 0
1 year ago
Bonjour,pouvez vous m’aider ;)
Orlov [11]

Answer:

je suis super nul en math desolee

7 0
3 years ago
The combined area of two sqaures is 45 sqaure centimeters. Each side of one sqaure is twice as long as a side of the other sqaur
VMariaS [17]

Answer:the length of each side of the larger square is 6 centimeters.

Step-by-step explanation:

Let x represent the length of each side of the small square.

Let y represent the length of each side of the Large square.

The area of the small square is x^2

The area of the large square is y^2

The combined area of two squares is 45 square centimeters. This means that

x^2 + y^2 = 45 - - - - - - - - - - -1

Each side of one square is twice as long as a side of the other square. This means that

y = 2x

Substituting y = 2x into equation 1, it becomes

x^2 + (2x)^2 = 45

x^2 + 4x^2 = 45

5x^2 = 45

x^2 = 45/5 = 9

x = √9 = 3

Substituting x = 3 into y = 2x, it becomes

y = 2 × 3 = 6 centimeters

7 0
3 years ago
Round 6,877 to the nearest whole number.
Snowcat [4.5K]
When you round that number you get 7,000
4 0
3 years ago
For a monthly family cookout, David
OlgaM077 [116]

Answer:

help me to find Xian pleaseee:( i miss him so much:(

sorry for answering Non sense po i hope u understand me ty po!

4 0
1 year ago
Other questions:
  • I need helpp will give brainliesst!!!
    14·1 answer
  • If 9 is added to twice a number and this sum is multiplied by 6​, the result is the same as if the number is multiplied by 5 and
    5·1 answer
  • Reduce the following fraction to lowest terms 49/105
    6·2 answers
  • What is the quotient of 74.75 and 10 to the second power?
    7·2 answers
  • What is the median of the data set?<br><br> 13 61 44 25 56 50 11 19 22 41
    6·2 answers
  • How to solve question 5 and 6?
    7·1 answer
  • What is 30 percent of 25
    13·1 answer
  • Find the value of x that makes A || B.
    15·2 answers
  • A
    8·1 answer
  • Solve ΔABC with ABC=51°, c=8 and a=11. Draw a diagram.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!