Answer:
30
Step-by-step explanation:
Theorm
Consider the equation 4x=8.
Which value could be substituted x to make the equation TRUE?
Answer:
2
Step-by-step explanation:
4 times 2 is 8
Find the sales tax. Then find the total cost of the item. Sales Tax Selling Price Rate of Sales Tax Sales Tax $60.00 3% ?
Answer:
$61.80
Step-by-step explanation:
60 increase 3% =
60 × (1 + 3%) = 60 × (1 + 0.03) = 61.8
Answer:
Sales tax:1.80 total cost:61.80
Step-by-step explanation:
Price x sales tax rate = sales tax
60 x .03=1.80
price + sales tax = total cost
60 + 1.80=61.80
the difference of 44 and the square of n into a expression
Answer:
[tex]44-\sqrt{n}[/tex]
Which inverse operations could you use to solve the equation m/5 - 8 = -6? Select two answers.
A Add 8 to each side and then divide each side by 5
B. Add 8 to each side and then multiply each side by 5
C. Multiply each side by 5 and then add 40 to each side
D. Subtract 8 from each side and then multiply each side by 5
E Multiply each side by 5 and then add 8 to each side
Answer:
B and C seem to be the correct answers!
Hope this helps!
At the end of the year, cars made in the current year are marked down to make room for next year's models. One particular model has a sale price of $12,806, which is 24% less than it sold for when it was new. What was the original price of the vehicle?
9514 1404 393
Answer:
$16,850
Step-by-step explanation:
The sale price is 1 -24% = 76% of the original price (p). An equation is ...
12806 = 0.76p
12806/0.76 = p = 16850
The original price of the vehicle was $16,850.
Round 8.644 to the nearest tenth
Answer:
8.6
Step-by-step explanation:
The dot plots below show the results.
Students
Teachers
Which compares the medians of the data?
The median for the students is 4 and the median for the teachers is 8.
The median for the students is 2 and the median for the teachers is 3.
The median for the students is 4 and the median for the teachers is 3.
The median for the students is 2 and the median for the teachers is 8.
Answer: The median for the students is 2 and the median for the teachers is 3.
Step-by-step explanation:
Ordering the data for the students from the dot points:
0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4.
n = 20 which is positive so median position is average of:
= (n / 2) and = (n + 1) / 2
= 20 / 2 = 21 / 2
= 10 = 10.5
2 is in position 10 2 is in position 10.5
Average = (2 + 2) / 2 = 2
Student median is 2.
Teachers
0, 1, 1, 1, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 6, 8
3 is in position 10 as well as in position 10.5.
= (3 + 3) / 2
= 3
Teacher median is 3.
(In attachment, teacher plot is first and then the student follows)
Answer:
Students Median= 2
Teacher Median=3
Step-by-step explanation:
Find the value of x. Please help ASAP will give brainliest.
Answer:
120 degrees
Step-by-step explanation:
50+70=120
Answer:
x
100
Step-by-step explanation:
Jason wakes up for school at 5:30 in the morning. If school starts at 7:00 am, how long in minutes does he have from the time when he wakes up until school starts? *
Answer:
90 minutes
Step-by-step explanation:
an hour is 60 minutes+ another 30 minutes= 90
A company has a manufacturing plant that is producing quality clocks. They find that in order to produce 190 clocks in a month, it will cost $6720. Also, to produce 460 clocks in a month, it will cost $14280. Find
an equation in the form y = mx + b, where x is the number of clocks produced in a month and y is the monthly cost to do so.
Answer: y =
Answer:
Step-by-step explanation:
6727 BCS they add 2 form 6725 and it becomes the answer if 69. Yw
please help me please i really need help please
An athlete eats 90 grams of protein per day while training. How much is this in milligrams (mg)?
Answer:
90,000 Mg would be the amount of protein.
Enter an estimate. Round each mixed number to the nearest half in your estimate.
5 1/2 - 4 6/7
The code for a lock consists of 3 digits using the digits: 1,2,4,7,8,9. How many different codes are possible if no digit may be repeated?
Answer:
279
Step-by-step explanation:
\250 doctors from three countries in Europe meeting in a conference to decide whether to approve a new vaccine for the flu. Among these are 115 Germans, 65 French, and 70 Englishmen. We also know that, 75% of the Germans, 60% of the French and 65% of the Englishmen are in favor of using the new vaccine. (a) What is the probability that a randomly chosen doctor is in favor of the vaccine
Answer:
0.683 = 68.3% probability that a randomly chosen doctor is in favor of the vaccine
Step-by-step explanation:
(a) What is the probability that a randomly chosen doctor is in favor of the vaccine
75% of 115/250 = 0.46(German).
60% of 65/250 = 0.26(French).
65% of 70/250 = 0.28(Englishmen). So
[tex]p = 0.75*0.46 + 0.6*0.26 + 0.65*0.28 = 0.683[/tex]
0.683 = 68.3% probability that a randomly chosen doctor is in favor of the vaccine
What's 300x490-78+344-23=?
plz help me
Answer:
141,243
Step-by-step explanation:
1. Use PEMDAS
(300)(470) - 78 + 344 - 23 (Do muti first)
141,000 - 78 + 344 - 23 (You can do any order now)
141,243
What is the multiplier for a decrease of 42%
Answer:
x0.58
Step-by-step explanation:
1-0.42=0.58
:)
What is the volume?
1 mm
1 mm
1 m
Answer:
1mm
Step-by-step explanation:
1 × 1 × 1
good luck, i hope this helps :)
Answer:
1 m (milliliter)
Step-by-step explanation:
To find the volume, you need to know the formula for volume
The formula is
length × width × height.
So,
1 mm (length)
x
1 mm (width)
x
1 mm (height)
is 1 mm
Because 1 x 1 x 1 is just 1
Bill spent a total of $35 at the grocery store. Of this amount, he spent $28 on fruit. What percentage of the total did he spend
on fruit?
Answer:
80%
Step-by-step explanation:
28/35 as a percent =
First, simplify the fraction.
28/35 = 4/5
Next, turn the simplified fraction into a denominator of 100.
4/5 = 80/100
80/100 = 80%
50 PTS! PLEASE HELP me OUT!
Answer:
my thing is being weird so i cant really help. lo siento
i am bord
Step-by-step explanation:
2
1 1. On a coordinate graph, the points A(-5, 6),B(2, 6),C(2, -1), and D(-5, -1) are the vertices of a
Nuare. What is the area of the square?
A. 7 square units
B. 14 square units
C. 28 square units
D. 49 square units
Answer:
I believe your answer would be C
Suppose that f(x) = 3 (8x - x^2)/256 for 0 < x < 8
Determine the following probabilities. Round all of your answers to 3 decimal places (e.g. 98.765).
a. P(X < 5)
b. P(X< 9)
c. P(5 < X < 7)
d. P(X > 3)
e. Determine x such that P(X < x) = 0.95
Answer and Step-by-step explanation: This function is a probability density function of a random variable X:
[tex]f(x)=\frac{3(8x-x^{2})}{256}[/tex]
and to calculate probabilities, we will have to integrate it:
[tex]P(X<x)=\int\limits^x_0 {\frac{3}{256}(8x-x^{2}) } \, dx[/tex]
Solving:
[tex]P(X<x)=\frac{3}{256}(4x^{2}-\frac{x^{3}}{3} )[/tex]
Then:
a. P(X < 5)
[tex]P(X<5)=\int\limits^5_0 {\frac{3}{256}(8x-x^{2}) } \, dx[/tex]
[tex]P(X<5)=\frac{3}{256}(100-\frac{125}{3} )[/tex]
[tex]P(X<5)=\frac{3}{256}(\frac{300-125}{3} )[/tex]
[tex]P(X<5)=\frac{175}{256}[/tex]
P(X < 5) = 0.683
b. P(X < 9)
Since density function's upper limit is 8, probability of x < 9 is 100% or 1.
So, P(X < 9) = 1
c. P(5 < X < 7)
[tex]P(5<X<7)=\int\limits^7_5 {\frac{3}{256}(8x-x^{2}) } \, dx[/tex]
[tex]P(5<X<7)=\frac{3}{256}[4(7)^{2}-\frac{7^{3}}{3}-4(5)^{2}+\frac{5^{3}}{3}][/tex]
[tex]P(5<X<7)=\frac{3}{256}[96-\frac{218}{3} ][/tex]
[tex]P(5<X<7)=\frac{70}{256}[/tex]
P(5 < X < 7) = 0.273
d. P(X > 3)
[tex]P(X>3)=\int\limits^8_3 {\frac{3}{256}(8x-x^{2}) } \, dx[/tex]
[tex]P(X>3)=\frac{3}{256}[256-\frac{512}{3}-36+9 ][/tex]
[tex]P(X>3)=\frac{3}{256}(229-\frac{512}{3} )[/tex]
[tex]P(X>3)=\frac{175}{256}[/tex]
P (X > 3) = 0.683
e. P(X < x) = 0.95
[tex]0.95=\int\limits^x_0 {\frac{3}{256}(8x-x^{2}) } \, dx[/tex]
[tex]\frac{3}{256}[\frac{12x^{2}-x^{3}}{3} ] =0.95[/tex]
[tex]\frac{12x^{2}-x^{3}}{256}=0.95[/tex]
[tex]12x^{2}-x^{3}=243.2[/tex]
[tex]-x^{3}+12x^{2}-243.2=0[/tex]
Solving this cubic equation, we have three values for x:
x₁ = -3.909
x₂ = 8.992
x₃ = 6.917
The value of x will the one between 0 and 8, which are the limits of the function. So, value of x which gives a probability of 0.95 is x = 6.917.
Mahir ' in ağırlığının feride' nin ağırlağına oranı 9/4 'tür.
Mahir' in ağırlığı 81 kg olduğuna göre feridenin ağırlığı kaç kg'dir? (acil soru)
Glen swims to 2/3 mile on Monday, 3/4 mile on Wednesday, and 5/6 mile on Friday. What is the total distance Glenn swims on those three days? Show your work
Answer:
In total, Glen ran 2 and 1/4 miles.
At Marco's school, 5/8 of the students are in the band. What percent of the students are in the band?
A database contains 58,000 items. Items are added to the database at a rate of 2 items per minute.
Which function can be used to find n, the total number of items in the database after m minutes?
Answer:
Your answer is
2 times per min So Function.....
f(x)=n= 2x
where n= items
x= min
Hope that this is helpful. Tap the crown button, Mark my answer as............. BRAINLIST......... Like & Follow me to get more answer.
How much dose a 60$ video game cost after you take 30% off?
Answer:
42
Step-by-step explanation:
Answer:
$42
Step-by-step explanation:
60 x 30 =
60 x 0.3 = 18
60 - 18 = 42.
You buy a refillable cup from the gas station for $10. They are offering a special where you buy the cup, and you can get soft drink refills for only
$0.40 for the entire summer. Write a function in x that represents the total amount you spend on soft drinks at the gas station this summer. Be sure
to indicate any domain restrictions.
Answer:
10₊0.40x
Step-by-step explanation:
Because it starts off by being 10 dollars plus 0.40 times however many refills you get
Which fraction rounds to 5?
Answer:
5/1
Step-by-step explanation:
Answer:
5/1
Step-by-step explanation:
8y - 2(y + 4)
Simplify
Answer:
= 6y − 8
Step-by-step explanation: