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
tiny-mole [99]
2 years ago
13

Solve for y. 2(2y+6)=28​

Mathematics
2 answers:
svet-max [94.6K]2 years ago
8 0

2(6 + 2y) = 28

(6 x 2 + 2y x 2) = 28

(12 + 4y) = 28

12 + 4y = 28

 12 + -12 + 4y = 28 + -12

 12 + -12 = 0

0 + 4y = 28 + -12

4y = 28 + -12

 28 + -12 = 16

4y = 16

16\4

 y = 4

Shalnov [3]2 years ago
7 0

Answer:

y=4

Step-by-step explanation:

You might be interested in
(140-x)/(7)+70 = 120. Please answer correctly.
slava [35]
From question,
(140-x)/7+70=120
Or, (140-x)/7=120-70
Or,140-x=50X7
Or, -x=350-140
Or, -x=210
:• x = -210 answers
6 0
3 years ago
Dakota earned ?$4.50 in interest in Account A and ?$18.00 in interest in Account B after 18 months. If the simple interest rate
jeka94

Answer:

6

Step-by-step explanation:


7 0
3 years ago
Solve log x = 3. Please help me here, thank you have a great day/night
LenaWriter [7]

Answer:

x=1000 or 10 to the 3rd power

8 0
2 years ago
The price of products may increase due to inflation and decrease due to depreciation. Marco is studying the change in the price
likoan [24]

Answer:

A)  3%

B)  Product A

Step-by-step explanation:

<u>Exponential Function</u>

General form of an exponential function: y=ab^x

where:

  • a is the initial value (y-intercept)
  • b is the base (growth/decay factor) in decimal form
  • x is the independent variable
  • y is the dependent variable

If b > 1 then it is an increasing function

If 0 < b < 1 then it is a decreasing function

<u>Part A</u>

<u>Product A</u>

Assuming the function for Product A is <u>exponential</u>:

f(x) = 0.69(1.03)^x

The base (b) is 1.03.  As b > 1 then it is an <u>increasing function</u>.

To calculate the percentage increase/decrease, subtract 1 from the base:

⇒ 1.03 - 1 = 0.03 = 3%

Therefore, <u>product A is increasing by 3% each year.</u>

<u>Part B</u>

\sf percentage\:change=\dfrac{final\:value-initial\:value}{initial\:value} \times 100

To calculate the percentage change in Product B, use the percentage change formula with two consecutive values of f(t) from the given table:

\implies \sf percentage\:change=\dfrac{10201-10100}{10100}\times 100=1\%

Check using different two consecutive values of f(t):

\implies \sf percentage\:change=\dfrac{10303.01-10201}{10201}\times 100=1\%

Therefore, as 3% > 1%, <u>Product A recorded a greater percentage change</u> in price over the previous year.

Although the question has not asked, we can use the given information to easily create an exponential function for Product B.

Given:

  • a = 10,100
  • b = 1.01
  • n = t - 1 (as the initial value is for t = 1 not t = 0)

\implies f(t) = 10100(1.01)^{t-1}

To check this, substitute the values of t for 1 through 4 into the found function:

\implies f(1) = 10100(1.01)^{1-1}=10100

\implies f(2) = 10100(1.01)^{2-1}=10201

\implies f(3) = 10100(1.01)^{3-1}=10303.01

\implies f(4) = 10100(1.01)^{4-1}=10406.04

As these values match the values in the given table, this confirms that the found function for Product B is correct and that <u>Product B increases by 1% per year.</u>

4 0
2 years ago
Answer ASAP
LiRa [457]

Answer:

x = 15°

Step-by-step explanation:

Complementary angles are two angles whose sum = 90°

∠A + ∠B = 90°

3x + 45 = 90

3x = 45

x = 45/3

x = 15°

8 0
2 years ago
Other questions:
  • Hello can you please help me posted picture of question
    14·1 answer
  • Find S25 for -7+ -2 + 3 + 8 +…
    10·1 answer
  • Which numbers are possible solutions to the inequality... (SELECT ALL THAT APPLY)
    11·1 answer
  • If P(x)= -x^3-2x^2+2x-2 and A(x)= x+2. Use the remainder when P(x) is divided by A(x).
    7·1 answer
  • 2. Circle the name of the triangle: isosceles, equilateral, scalene, right​
    8·2 answers
  • Y=2 |x|<br> (where do I graph it? HELP​
    6·1 answer
  • What is the area of the composite figure shown ​
    12·1 answer
  • PLZZZ. HELP ME. IM GIVING AWAY LOADS OF POINTSSSSSSSSSSSS
    14·1 answer
  • 8<br> What is 5.618372 rounded to the nearest tenths place?
    6·2 answers
  • Help please! answer by today.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!