Answer:
D 9
Step-by-step explanation:
569.37 = 62.50x + 7.23
562.14 = 62.5x
x = 9.04 so 9 pairs
The student bought 9 pairs of shoes.
What is a function?"It defines a relation between one variable and another variable."
What is a linear function?"It is a function of the form f(x) = ax + b, where a, b are real numbers."
For given example,
The total cost, t, of the pairs of shoes, 'x', can be found by the linear function below.
t = 62.50x +7.23
the student spent $569.37 on shoes,
⇒ t = $569.37
We need to find the number of pairs of shoes the student bought.
Substitute t = 569.37 in the given linear function and find the value of 'x'
⇒ 569.37 = 62.50x + 7.23
⇒ 562.14 = 62.50x
⇒ x = (562.14) / (62.50)
⇒ x = 8.99
⇒ x ≈ 9
Therefore, the student bought 9 pairs of shoes.
Learn more about the function here:
https://brainly.com/question/12431044
#SPJ2
1/2(12x+18)>99 what is the answer to this problem
Answer:
x > 15
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityAlgebra I
Terms/CoefficientsStep-by-step explanation:
Step 1: Define
1/2(12x + 18) > 99
Step 2: Solve for x
[Multiplication Property of Equality] Multiply 2 on both sides: 12x + 18 > 198[Subtraction Property of Equality] Subtract 18 on both sides: 12x > 180[Division Property of Equality] Divide 12 on both sides: x > 15Here we see that any value x greater than 15 would work as a solution to the inequality.
What is the sum of 1/2+ 1/4
Answer:
3/4
Step-by-step explanation:
good luck I hope you get it correct
On last week's math test, 32 students received passing grades and 16 students did not
receive passing grades. What is the ratio of the number of students who passed the test to
the total number of students who took the test?
A
11 / 1
B
2/3
C
3/2
D
2/1
Answer:
Option B. The ratio of the number of students who passed the test to
the total number of students who took the test is 2/3
Step-by-step explanation:
Firstly, we have to find the total number of students who took the test, we can do that by adding the number of students who passed and the number of students who did not pass, so ...
32 + 16 = 48
Now we just write down the ratio between the number of students who passed the test and the total number of students who took the test. So we get
32/48
Now we just simplify and get...
2/3
las tres quintas partes de una bandera son de color rojo, la cuarta parte es azul y el resto blanco ¿ que parte de la bandera es blanco ?
In ΔEFG, f = 42 inches, e = 39 inches and ∠E=43°. Find all possible values of ∠F, to the nearest degree.\
Answer:
The angle F = 47.25°
Step-by-step explanation:
Step(i):-
Given that f =42inches and e = 39 inches
Given that ∠E = 43°
By using sine rule
[tex]\frac{a}{sinA} = \frac{b}{sinB} = \frac{C}{sinC} = 2R[/tex]
[tex]\frac{e}{sinE} = \frac{f}{sinF}[/tex]
⇒ [tex]\frac{39}{sin43} = \frac{42}{sinF}[/tex]
Cross multiplication , we get
⇒ 39 sin F = 42 × sin 43°
[tex]sin F = \frac{42 X 0.68199}{39}[/tex]
⇒ sin F = 0.734459
Step(ii):-
⇒ sin⁻¹ (sin F)= sin ⁻¹ ( 0.734459)
⇒ F = 47.25
The angle F = 47.25°
Simplify -5(-3w - 5) - 20
Accordingly to the Internet which knows everything a good rule of thumb is to plan for 5 to 10% waste when buying carpet how did the estimate to do
Answer:
Not bad
Step-by-step explanation:
According to the internet, there are a number of factors to consider before estimating your waste percentage when buying carpets.
You may have to check the shape of your room, if it has multiple walls or if it is just complicated. For this kind you can estimate a 20% waste factor.
But for uncomplicated rooms having the same width as the carpet, the rule of thumb is to add a 10% waste factor to the square footage area.
Can some one help pls!!!
Answer:
Slope= 2x y-intercept: 2Slope= -x y-intercept: 8Slope= -4x y-intercept: 12 Give brainlistA company is billed $1,850 with a cash discount of 5% offered for payment within ten days. How much could it save?
Answer:
$92.5
Step-by-step explanation:
1,8500x.05=92.5
Answer:
1850 / 5% = 36000
Step-by-step explanation:
Lowest common multiple of 28 and 144
Answer:
Lowest Common multiple -(L.C.M) is 1008.Step-by-step explanation:
2 ¦ 28, 1442 ¦ 14, 72 ¦ 7, 362×2×7×36 = 1008(L.C.M) =1008─━─━─━─━─━─━─━─━─━─━─━─
L.C.M = Lowest Common Multiple.069 rounded to the nearest hundredth
Answer:
I believe the answer is 0.07! I hope that helps
0.069 rounded off to the nearest hundredth is 0.69.
express in the form 1:n give n as a decimal 8:6
Answer: 8.6:8.6
Explanation:
1:n is the form you want.
n is 8.6. change the n value so it is 1:8.6
1 is 1 times bigger than 8.6
8.6 times 1 is 8.6
so you've got 8.6:8.6
your welcome, i hope this helps
which statement is correct?
5. Simplify the expression 4a - 5b - 6 + 3b - 4a.
T
Answer:
-2b - 6
Step-by-step explanation:
Answer:
Step-by-step explanation:
4a -5b -6 +3b -4a = 4a-4a + 3b-5b -6 = -2b-6
about how long would it take Vicky to read 25 pages? Explain.
Answer:
so i do not have that many resources like how fast she can read, how many pages there are, and how many words are on the page
Step-by-step explanation:
if she is and older person than i can say 25 pages in 13 or 14 minutes but if she is younger than i can say 20 or 22 minutes i hope this helps with your problem
Please help me! 7th grade science!
A girl uses 60j of energy to move a box from the floor to a shelf. How much power does she use if it takes her 3 seconds to move the box?
15watts
20watts
90watts
180watts
Answer:
The answer is 20 watts
Step-by-step explanation:
power=joules/seconds
60/3=20
can you help me with this please
Answer:
slope is 4/3 y intercept is -3
Step-by-step explanation:
there is no calculations needed
1. Enrique tossed two fair coins ten times. He recorded whether each coin landed on
heads, H, or tails, T. The outcomes are shown in the table
O 30
O 45
O 15
O 67
Based on the results in the table, predict the number of times both coins will land on
tails if Enrique tosses two coins 150 times
D(-1,4) and E (3,-2),
Answer:
(1,1)
Step-by-step explanation:
With the midpoint formula, we're basically finding the average of the two variables, x and y.
Formula: [tex](\frac{x_{1} + {x_2} }{2}, \frac{_{1} + {y_2} }{2} )[/tex]
[tex](\frac{{-1} + {3}}{2} , \frac{{-2} + {4}}{2} )[/tex]
[tex](\frac{2}{2}, \frac{2}{2})[/tex]
(1,1)
Select all the expressions that represent a price discounted by 20% of the price of an item that originally cost d dollars
Options :
A. 0.8d
B. d-0.2
C. d-0.2d
D. 1-0.2d
Answer:
A. 0.8d ; d - 0.2d
Step-by-step explanation:
Given that:
Cost of item = d dollars
Discount on items = 20%
Expression represemting the discounted price :
(100% - 20%) x d
80% * d
0.8d
(100% - 20%) x d
(1 - 0.2)d
d - 0.2d
Write 14 more then a number (pre algebra)
Answer:
14+n
Step-by-step explanation:
14 more means we are adding and a number means we dont have an specific number so we substitute with n
Hope this helps (:
Answer:
x+14
Step-by-step explanation:
hope it helps!
Dana buys a new computer that cost $675. Sales tax is 7%. What is the total cost?
Answer:
722.25
Step-by-step explanation:
675x1.07
1 would be 675. Since there is a 7 percent sales tax, it would be 107 percent of the cost.
Answer:
$722.25
Step-by-step explanation:
Please give me the correct answer
Which expression is equivalent to:
3a + 33
3(a + 33)
7a + 27 - 4a + 6
-3 (a + 11)
O 5a + 29 - 2a + 3
Answer:
It's 3 (a + 11)
Step-by-step explanation:
I don't know if you said that the 3 was a negative but if you did then don't choose my answer.
Answer:
The answer is 3(a+11)
Step-by-step explanation:
LOTS OF POINTS, PLEASE ANSWER
Train A and train B leave a central station at the same time. They travel the same speed, but in opposite directions, with train A heading towards station A, and train B heading towards station B. Train A reaches station A after 4 h. Train B reaches station B after 3 1/2 h. Station A and Station B are 562.5 mi apart.
What are the rates of the trains?
Answer:
since the rate is the same for both trains, and we know that the distance train A travels plus the distance train B travels equals 562.5 miles, we can use the D(istance) = R(ate) * T(ime) formula to solve this.
Train A:
da = R * 4
Train B:
db = R * 3.5 (using 3.5 instead of 3 and 1/2)
Solve for R:
R * 4 + R * 3.5 = 562.5
7.5 * R = 562.5
R = 75
The trains are traveling at 75 miles per hour.
Step-by-step explanation:
Answer:
speed = distance / time
since they are moving in opposite direction, the time is the sum of the two times = 2 1/2 + 4 = 6 1/2 = 13/2
speed = 585/(13/2) = 90 miles per hour.
Step-by-step explanation:
I hope it helps.
HELLLLPPPPP, will make brainiest :)
Answer:
no
Step-by-step explanation:
the area of the whole box is 17,280 cubic units because 24x24x30=17,280. If each cubic unit is .004 lbs then multiply 17,280 by .004. And it equals 69.12 lbs. And 69 is bigger than 30, so no he cant lift it.
The high temperatures, in degrees Fahrenheit, of 10 U.S. Cities during a day in October are listed below. 72, 50, 54, 66, 58, 79, 54, 99, 40, 68 What is the range of the temperatures? A. 54°F B. 59°F C. 62°F D. 64°F
Answer: B. 59°F
Step-by-step explanation:
Range = Maximum - MInimum.
From the given temperatures, Maximum temperature = 99 degrees Fahrenheit
Minimum temperature = 40 degrees Fahrenheit
Range = Maximum temperature - Minimum temperature
i.e. Range =99-40 = 59 degrees Fahrenheit
Hence, the range of the temperatures = 59°F i.e. B is the correct option.
How would I solve this? I’m so confused
Given: ABCD is a parallelogram.
Prove: AB = CD and BC = DA
answers are in image.
Answer:
ASA theorem (angle side angle)
Step-by-step explanation:
ac is congruent to ac bc of reflexive property.
and bc you found the other two angles using alternate interior angle theorem, it's safe to use angle side angle. if two angles and a side is congruent between the two triangles, then the two sides are congruent.
this is the correct answer. edg 2021
What is the slope of the line that passes through the points (-6, 4) and (-6, 8)?
Answer:
Step-by-step explanation:
(8 - 4)/(-6 + 6)= 4/0= undefined
Answer:
Step-by-step explanation:
5