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
Norma-Jean [14]
3 years ago
5

Jake took 4 piano lessons last month. For each lesson, he memorized 2 major scales and x minor scales.

Mathematics
1 answer:
DerKrebs [107]3 years ago
6 0

b and c are the answers i think....

You might be interested in
Carl bought 19 apples of 2 different varieties to make a pie.The total cost of the apple was $5.10.Granny Smith apples cost $0.2
disa [49]

For this case we propose a system of equations:

x: Let the variable representing the quantity of Granny Smith apples

y: Let the variable representing the number of Gala apples

According to the statement we have:

x + y = 19\\0.25x + 0.30y = 5.10

From the first equation we have to:

x = 19-y

replacing in the second equation:

0.25 (19-y) + 0.30y = 5.10\\4.75-0.25y + 0.30y = 5.10\\4.75 + 0.05y = 5.10\\0.05y = 5.10-4.75\\0.05y = 0.35\\y = \frac {0.35} {0.05}\\y = 7

So, Carl bought 7 Gala apples

On the other hand:

x = 19-7 = 12

So, Carl bought 12 Granny Smith apples

Answer:

Carl bought 7 Gala apples and 12 Granny Smith apples

8 0
3 years ago
Select the correct answer. Which equation, when solved, gives 8 for the value of x? OA. +3 = =+14 OB. 5-9=31-12 OC. 21-2=r-4 OD.
34kurt

Answer:

B

Step-by-step explanation:

i did it and it’s right

8 0
2 years ago
Use linear regression to find a
Inessa [10]

A function that fits the following points (0,5), (2,-13) is y = 9x + 5

<h3>Equation of a line</h3>

The equation of a line in slope-intercept form is expressed as;

y =mx +b

where;

m is the slope

b is the intercept

Given the following coordinates (0,5), (2,-13)

Slope = -13-5/2-0
Slope = -18/-2

Slope = 9

Since the y-intercept is b = 5, hence the equation of the line will be y = 9x + 5

Learn more on linear regression here; brainly.com/question/25987747

#SPJ1

6 0
2 years ago
If a baseball game lasted 3 1/4 hours and ended at 10 P.M. , at what time did they start
Orlov [11]
Subtracting 3.25 hours from 10 PM is subtracting 3 hours and 15 minutes from 10 PM. Doing this, we get that the game started at 6:45 P.M. Hope this helped!
5 0
3 years ago
If 3 is added to a number and the sum is tripled​, the result is 21 more than the number. find the number.
zavuch27 [327]
<span>If 3 is added to the number: x + 3
b) ...and the sum is tripled.. 
"The sum" is "x + 3" so: 3(x+3)
c) ...the result is 27 more than the number.
27 more than the number is x + 27 
d) Put it all together:
3(x + 3) = x + 27 
Solve for x: 
1) Distribute the left side of the equation:
3x + 9 = x + 27

2) Subtract x from each side of the equation:
2x + 9 = 27
3) Subtract 9 from each side of the equation:
2x = 18
4) Solve for x:
x = 9 
Check: 
1) x = 9
2) 3(x + 3) = x + 27
3) 3 ([9] + 3) = [9] + 27
4) 3(12) = 9 + 27
5) 36 = 36 

So, therefore The answer is correct</span>
7 0
3 years ago
Other questions:
  • Look at this inequality.<br><br><br>−0.2x+1.2&lt;1.1
    8·1 answer
  • The mean of four numbers is 70. The mean increases to 80 when a fifth number is added. What is the fifth number?
    13·1 answer
  • What are the supplementary angels?
    9·1 answer
  • Simplify the expression 9t^2+14-17t+6t-8t^2
    15·1 answer
  • Find the slope of the line
    10·2 answers
  • Which decimal represents the fraction 5/6?
    15·1 answer
  • Helen’s father’s car can travel an average of 18.5 miles on 1 gallon of gasoline. Gas at the local station costs $3.79 per gallo
    15·1 answer
  • The ages of the students in a statistics class are listed below. If the 18 year old student has a birthday and turns 19, how wil
    10·1 answer
  • PLEASE HELP ASAP!!!!! LOTS OF POINTS WILL MARK BRAINLIEST
    12·2 answers
  • Can someone help me with this problem thanks!​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!