Answer:
The answer is 639.
Step-by-step explanation:
42.6 × 15
639
Answer: 639
Step-by-step explanation:
42.6 x 15 =639
.
A shop owner offered a 20% discount off the regular price of a mirror. The amount of the discount is $3
Answer: $15
The original price of the mirror is unknown, so let's call it x.
The discount on the original price is a 20% discount, so it is 20% of x, or 0.2x.
We are told the discount is $3, so 0.2x = 3. Now we solve the equation for x.
0.2x = 3
Divide both sides by 0.2.
x = 3/0.2
x = 15
The regular price is $15.
Step-by-step explanation:
PLEASE HELP I WILL GIVE MORE POINTS IF YOURE CORRECT!!!
Solve the system of equations using elimination, or write “no solutions” or “infinite solutions” where applicable
y= 4x+5
Answer:
infinite solutions
Step-by-step explanation:
I am thirsty but also thrifty so I want a drink that will quench my thirst and cost the least. Which of the following will quench my thirst and cost the least? Write the unit rate for each.
-A 12oz Pepsi $1.08
-A 20oz coke for $1.20
-A 24oz mountain dew for $1.68
2 trains leave from the same point and travel along straight tracks that differ in direction by 72ﾟ. If their speeds are 64 miles per hour and 52 miles per hour approximate how far apart they will be after 30 minutes
Answer:
34.44 miles
Step-by-step explanation:
Distance covered bty the two trains :
Distance = speed * time
Time = 30 minutes = 0.5hr
Distance of train 1 = 64 * 0.5 = 32 miles
Distance of train 2 = 52 * 0.5 = 26 miles
Included Angle = 72°
Using cosine rule :
a² = b² + c² - 2bcCosA
Let Distance between the trains after 30 minutes = a
a^2 = 32^2 + 26^2 - 2(32)(26) * Cos(72)
a^2 = 1700 - 514.20427
a^2 = 1185.7957
a = sqrt(1185.7957)
a = 34.435
a = 34.44 miles
In Jonesville Louisiana 125 students attend last Friday high school football game. This about 25% of the students currently enrolled at the school. How many students are enrolled at the high school?
Answer:
500 students
Step-by-step explanation:
In Jonesville Louisiana 125 students attend last Friday high school football game. This about 25% of the students currently enrolled at the school. How many students are enrolled at the high school?
Let the number of students enrolled at the high school be represented as x
Hence:
25% of x = 125
25/100 × x = 125
25x /100 = 125
Cross Multiply
25x = 125 × 100
x = 125× 100/25
x = 500 students
The correct answer is y < 18. Let's pretend a student forgot to flip the symbol and they mistakenly believe the solution set is y > 18. They check 21 since 21 is greater than 18, and they think that y has to be greater than 18. When they do their check, what will the final line of the check say? Is this a true statement?
Answer:
It is wrong
Step-by-step explanation:
y < 18
This is read as y is less than 18. If the students forgot to flip the symbol and mistakenly believe that y > 18.
y > 18
This is read as y is greater than 18.
There is a difference between the numbers greater or less than 18 .
y must have numbers less than 18 and 21 is greater than 18.
Therefore it is wrong.
But to make it true we can multiply minus with the inequality y > 18
-y > -18
This reverses the inequality sign and it becomes
y< 18
The solution which is required.
You are Gina versus the 40% of the students to apply. All the students in the University at six, 35% actually enroll. It's 10,000 students apply, how many actually enroll?
Answer:
1,400 students
Step-by-step explanation:
Calculation for how many actually enroll
First step is to calculate the numbers of students that was accepted
Numbers of students accepted=10,000 students*40%
Numbers of students accepted=4,000 students
Now let calculate the numbers of students that was enrolled
Students enrolled=4,000 students*35%
Students enrolled=1,400 students
Therefore the numbers of students that actually enrolled is 1,400 students
Select all of the following equations the number 30 will make true.
A. 270 ÷ □ = 9
B. 1,200 ÷ □ = 400
C. 9,000 ÷ □ = 300
D. 600 ÷ □ = 200
E. 330 ÷ □ = 110
Price per volleyball if 6 volleyballs cost $18.00? Please I need helpppp
Answer:
The price per volleyball is $3.
Step-by-step explanation:
Divide $18 by 6 for the cost of each volleyball in which your final answer should be $3 per volleyball.
Find the slope of each line
Answer:
The slope of this line is 4/1 or just 4.
Step-by-step explanation:
In order to get from one red dot to the other, you go up 4 and over 1. The entire line's formula is y=4x-2
What is (60 times 8)-5- divided by 2
Answer:
60x8 480 -5 475 divided by 2 is 237.5
Step-by-step explanation:
Answer: 0.234375
Step-by-step explanation:
Conversion a mixed number 2 2/
3
to a improper fraction: 2 2/3 = 2 2/
3
= 2 · 3 + 2/
3
= 6 + 2/
3
= 8/
3
To find new numerator:
a) Multiply the whole number 2 by the denominator 3. Whole number 2 equally 2 * 3/
3
= 6/
3
b) Add the answer from previous step 6 to the numerator 2. New numerator is 6 + 2 = 8
c) Write a previous answer (new numerator 8) over the denominator 3.
Two and two thirds is eight thirds
Divide: 5/
8
: 8/
3
= 5/
8
· 3/
8
= 5 · 3/
8 · 8
= 15/
64
Dividing two fractions is the same as multiplying the first fraction by the reciprocal value of the second fraction. The first sub-step is to find the reciprocal (reverse the numerator and denominator, reciprocal of 8/
3
is 3/
8
) of the second fraction. Next, multiply the two numerators. Then, multiply the two denominators. In the next intermediate step the fraction result cannot be further simplified by canceling.
In words - five eighths divided by eight thirds = fifteen sixty-fourths.
help ahhhh
brainliest for 1st answer
Answer:
232.96
Step-by-step explanation:
18.2-12.8=5.4
12.8•12.8=163.84
5.4•12.8=69.12
163.84+69.12=232.96
given f (x) = 3x+4, find f (2)
f(x) = 4x + 4 means that if we put an x into our function, a 3x + 4 come out.
So in this problem, we're putting a 2 into our function which
means that a 3(2) + 1 comes out which simplifies to 6 + 1 or 7.
So f(2) = 7 or the value of the function at 2 equals 7.
[tex]f(x) = 3x + 4[/tex]
Find f(2) by substituting x = 2 in the equation.[tex]f(2) = 3(2) + 4 \\ f(2) = 6 + 4 \\ f(2) = 10[/tex]
Therefore the value of f(2) is 10.
Meaning of f(a) and substitution in functionf(a) means the value of f(x) is ... at x = a. Same goes to the f(2) = 10. It means the value of f(x) = 10 at x = 2.
Answer[tex]f(2) = 10[/tex]
Solve for all values of x by factoring.
x^2+ 7x = 0
Answer:
x = 0, -7
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 Subtract Property of EqualityAlgebra I
Terms/Coefficients/DegreesFactoringSolving QuadraticsMultiple RootsStep-by-step explanation:
Step 1: Define
x² + 7x = 0
Step 2: Solve for x
Factor: x(x + 7) = 0Solve roots: x = 0, -7
Write the equation of the line in point slope form.
Y+4=-3(x+2)
2 w = 2p - 3z
a Find w when p = 8 and z = -2
Answer:
11
Step-by-step explanation:
2w = 2×8 - (-2×3)
2w = 16 - (-6)
2w = 22
w = 11
40 POINTS! IF YOU ANSWER CORRECTLY AND BRAINLIEST
The ratio of cows to chickens at Old McDonald’s Farm is 2:7. Select
all the farms that have a greater ratio of cows to chickens than Old
McDonald’s Farm.
1. ed’s Farm: 3 cows for
every 5 chickens
2. Pasture Farm: 2 cows for
every 9 chickens
3.Cluck & Moo Farm: 1 cow
for every 5 chickens
4. C & C Farm: 3 cows for
every 8 chickens
5. Family Farm: 1 cow for
every 3 chickens
btw: I added an extra 50 cause i feel nice today :>
Answer:
2. Pasture Farm : 2 cows for every 9 chickens & 4. C & C Farm: 3 cows for
every 8 chickens.
* Please let me know if this helped you or tell me if one of my answers are wrong .
12d^4/3d^2 shdhshbdbsnsns
Answer:
zip p0quo6or0r7ut t if
Step-by-step explanation:
ye at rdlrj8hj0
Answer:
[tex]4d^{2}[/tex]
Step-by-step explanation:
Divide the numbers like usual:
12/3 = 4
Note that when you divide powers with common base, you are actually subtracting the power:
[tex]\frac{d^{4} }{d^{2} } = d^{4 - 2} = d^{2}[/tex]
Combine the two for your answer:
[tex]4d^{2}[/tex] is your answer.
~
height versus age domain and range
Answer:
While there is a strong relationship between the two, it would certainly be ridiculous to talk about a tree with a circumference of –3 feet, or a height of 3000 feet. When we identify limitations on the inputs and outputs of a function, we are determining the domain and range of the function.
Step-by-step explanation:
HELP! i don’t know which one it is
Answer:
40.2
Step-by-step explanation:
Answer:
40.2 yeah
Step-by-step explanation:
Divide. Write the quotient in the lowest terms. 3/5 divided by 2 1/2
Answer:
6/25
Step-by-step explanation:
2 1/2 = 5/2
3/5 / 5/2 = 3/5 * 2/5 = 6/25
PLEASE HELP ASAP I WILL MARK BRAINLIEST IF THERE ARE MULTIPLE ANSWERS!!!!!
Please graph the solution of x+8≥9 and take a picture
Answer:
Attached
Step-by-step explanation:
x+8≥9
x ≥ 9-8
x ≥ 1
picture one is two dimension and picture 2 is number line
PLEASE HELP ME ITS DUE IN 30 MINS
Step-by-step explanation:
I honestly dont know. Maybe you could try to multiply the numbers on the chart? I hope this helped:)
Jack had 3 bags of golf balls with b balls in each bag;
Then his friend gave him 6 more golf balls.
How many golf balls does jack have now?
Write your answer as an expression.
Answer:
number of balls in three bags is 3b, so he has 3b+6 balls now
HELP ASAP
A restaurant did a survey among 100 customers to find their food preferences. The customers were asked about their preferences for
chocolate cake or cheesecake. Out of the total 50 people who liked chocolate cake, 15 also liked cheesecake. There were 25 people who liked
cheesecake
Part A: Summarize the data by writing the values that the letters A to l in the table below represent. (5 points)
Part B: What percentage of the survey respondents did not like either chocolate cake or cheesecake? (3 points)
Part C: Do the survey results reveal a greater dislike for chocolate cake or cheesecake? Justify your answer. (2 points)
A
Like choc cake and cheesecake- 15
Like choc cake no cheesecake- 35
Total- 50
No choc but cheesecake- 25
No choc no cheesecake- 25
Total- 50
When the manager of Fantastic Furniture buys a sofa from a manufacturer, she uses a markup of 45% of her cost to set the selling price of the sofa. What will be the selling price if the manager of Fantastic Furniture buys a sofa for $400? Show your work explain your reasoning.
Answer:
Selling price= $580
Step-by-step explanation:
eGiving the following information:
Buying price= $400
Mark-up percentage= 45% = 0.45
The manager applies a mark-up equivalent to 45% of the buying price. First, we need to determine how much is 45% of the cost.
Mark-up= buying price* Mark-up percentage
Mark-up= 400*0.45
Mark-up= $180
Now, the selling price:
Selling price= 400 + 180
Selling price= $580
Gil charges $5 per bracelet plus $2 for each string colour. If Gil makes 3 bracelets
with x colours, write an expression that represents how much money Gil makes.
Answer: 15 + 2x
Step-by-step explanation:
5b + 2x
5 (3) + 2x
15 + 2x
I think I'm right so I hope it helped!!
Helppp plssss It’s all in the photo
Answer:
90 (its a square no?)
Step-by-step explanation:
Which equation is equivalent to 2x+ 1.5 = 4.5
•2x+3=0
•x=3
•2x=6
•2x-3=0
a clock bought for RS 120 and sold at 20 Percentage
Answer:
Cost price of the cycle = Rs. 1200
Selling price of the cycles = Rs. 1500
SP > CP ⇒ there is a gain.
⇒ Gain = SP - CP = 1500 - 1200 = Rs. 300
∴ Gain Percentage =
CP
Gain
(100)%
=
1200
300
(100)%=25%
∴ The shopkeeper makes a profit of 25%