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
eimsori [14]
3 years ago
10

Show how to solve this two step problem. My item is 40% off. The original price is X. Explain the two one step equations you wou

ld use to solve this (to find the sales price). a. Now, I figured out that the original cost was $145, what is the real sales price?
Mathematics
1 answer:
fredd [130]3 years ago
4 0
40% of (times) X
4/10 of (times) X or 2/5 or .4
145 (times) .4 which is 58
You might be interested in
The number of students in the fourth six grade classes and North Side school are 26 1934 and 20 more properties to find the tota
sladkih [1.3K]

Basically there are 3 addition properties and they are associative property, identity property, and commutative property.

Commutative property is just changing the order of the addends. Example: 26+19+34+21= 21+34+19+26

Identity Property is just adding a 0 to the number that doesnt change anything. Example: 26+19+34+21 +0 = 100

Associative property is just changing the grouping of the addends. Example: (26+19) + (34+21)


I know these properties may be complicated i know inhate them too haha but i hope i helped :) if you want you can search up the distributive property too but its with multiplication and addition combined and its harder but i think these are the 3 main properties.

Hope this helps!

3 0
2 years ago
For which value of b would x^2 + bx - 24 be prime?<br><br> a. 3<br> b. 5<br> c. 10<br> d. 23
Lapatulllka [165]

Answer:

3

Step-by-step explanation:

24 + (-1) = 23, 12 + (-2) = 10, 8 + (-3) = and 6 + (- 4) = 2, none of the sums are equal to 3, therefore b = 3 would give a prime quadratic. The correct answer is then A. 3

5 0
2 years ago
How in the world do I set this up?
Iteru [2.4K]

Answer:

Step-by-step explanation:

The 2 2/5 is not showing up correctly, but I think it means that you are going 2 miles + 2/5 of a mile. If that is not true, leave me a note and I'll correct it.

So 75 and 30(n - 5) represent cents (I think) per 1/5 of a mile.

1 mile has 5 fifths.

2 miles has 10 fifths

2/5 has 2 fifths.

the total is 17 fifths so n = 17

C = 75 + 30(17 - 5)

C = 75 + 30(12)

C = 75 + 360

C = 435

That means you pay 4 dollars and 35 cents.

3 0
3 years ago
Find a formula for the quadratic function whose graph has vertex (-1,3) and y-intercept -3.
Blababa [14]

Answer:-6x^2-12x-3


Step-by-step explanation:

assume the equation is ax^2+bx+c=y

c=-3

-b/2a=-1

a-b+c=3

a=-6

b=-12


7 0
3 years ago
The following table contains ACT scores and GPA (grade point average) scores for 8 college students. (The ACT is an SAT-type tes
Savatey [412]

Answer:

Kindly check explanation

Step-by-step explanation:

Given the data:

ACT (X) :

21

24

26

27

29

25

25

30

GPA (Y) :

2.8

3.4

3.0

3.5

3.6

3.0

2.7

3.7

Relationship between GPA and ACT using a linear regression calculator :

ŷ = 0.1022X + 0.56813

Slope = 0.1022

Intercept = 0.56813

The relationship between GPA and ACT is in the positive direction, this can be inferred from the slope value which is positive

The intercept value ; 0.56813 means with a GPA score of 0 ; predicted ACT score will be 0.56813

Explain. How much higher is the GPA predicted to be if the ACT score increases by 5 points?

If ACT score increases by 5 ; predicted GPA will be:

Increase = 0.1022(5)

ACT score will increases by 0.511

ii) Compute the fitted values and the residuals for each observation and verify that the residuals sum to zero.

y = 0.1022(21) + 0.56813 = 2.71433

y = 0.1022(24) + 0.56813 = 3.02093

y = 0.1022(26) + 0.56813 = 3.22533

y = 0.1022(27) + 0.56813 = 3.32753

y = 0.1022(29) + 0.56813 = 3.53193

y = 0.1022(25) + 0.56813 = 3.12313

y = 0.1022(25) + 0.56813 = 3.12313

y = 0.1022(30) + 0.56813 = 3.63413

Residual:

2.8 - 2.71433 = 0.08567

3.4 - 3.02093 = 0.37907

3.0 - 3.22533 = −0.22533

3.5 - 3.32753 = 0.17247

3.6 - 3.53193 = 0.06807

3.0 - 3.12313 = −0.12313

2.7 -3.12313 = −0.42313

3.7 - 3.63413 = 0.06587

0.08567+0.37907−0.22533+0.17247+0.06807−0.12313−0.42313+0.06587 = −0.00044 = 0.00

iii) What is the predicted value of GPA when ACT = 20?

ŷ = 0.1022(20) + 0.56813

= 2.61

5 0
2 years ago
Other questions:
  • Two rational numbers between -1 and 0
    11·2 answers
  • -14 farenheit in the morning, dropped by 7 farenheit.
    6·2 answers
  • What is .038 squared written as a fraction in simplest form<br>​
    5·1 answer
  • Anyone know the answer to this one ?
    12·1 answer
  • I will give brainiest to whoever answers correctly !!
    7·1 answer
  • What is the least common multiple of 9 3 and 12​
    15·2 answers
  • Pls help i need help :D
    7·1 answer
  • What is five times that quantity​
    12·1 answer
  • Ms Edward has 12 boys and 8 girls in her class zyion wanted to write a ratio to represent the number of girls to the number of b
    10·1 answer
  • Where are mc donalds
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!