Answer:
A, She added before multiplying.
Step-by-step explanation:
First, start off by using GEMDAS.
Grouping
Exponents
Multiply
Divide
Add
Subtract
You work from left to right - so you obviously divide first, which Amanda did successfully. Then, you multiply, which is exactly where Amanda went wrong. She was supposed to multiply before adding the 3 with 4.
Not sure if this made sense,
A washer and dryer cost $918 combined . The washer cost $68 more than the dryer . What's is the cost of the dryer ?
What are the values of a and y
The value of a is
The value of y is
100 POINTS WILL MARK BRAINLIEST NEED BY 9:00
Answer:
Hello! Here are your answers for Part A:
4(x + 6) - 11 = 25 is a multi-step equation.
-1/2(2/3a - 4) = 1/2a - 7 is an equation with rational coefficients.
y - 23 = 8 is a one-step equation.
-3m - 2 = -17 is a two-step equation.
For Part B:
Find the common denominator -
x/2 - 7 = 4
x/2 + 2(-7)/2 = 4
Combine the fractions with the common denominator -
x/2 + 2(-7)/2 = 4
x + 2(-7)/2 = 4
Multiply the numbers -
x + 2(-7)/2 = 4
x - 14/2 = 4
Multiply all terms by the same value to eliminate fraction denominators -
x - 14/2 = 4
2 * x - 14/2 = 2 * 4
Cancel multiplied terms that are in the denominator -
2 * x - 14/2 = 2 * 4
x - 14 = 2 * 4
Multiply the numbers -
x - 14 = 2 * 4
x - 14 = 8
Add 14 to both sides -
x - 14 = 8
x - 14 + 14 = 8 + 14
Simplify -
x - 14 + 14 = 8 + 14
x = 8 + 14
x = 22
The solution to this equation is 22. 6 is NOT a solution.
Hope this helps! Have a great day.
Find the volume of the sphere
Answer:
V = 2 144.66058485063 m³
Step-by-step explanation:
Formula : ( volume V of a sphere of radius r )
[tex]V\ =\ \frac{4}{3} \times \pi \times r^{3}[/tex]
Therefore
[tex]V\ =\ \frac{4}{3} \times \pi \times 8^{3}[/tex]
[tex]V\ =\ \frac{4}{3} \times \pi \times 512[/tex]
⇒ V = 2 144.66058485063 m³ (use a calculator)
#3. Using the table of values, which equation represents the linear
function? *
х: -2, 0, 2, 4, 6
у: 1, -9, -19, -29, -39
O y = -x + 10
O y = 10x + 1
O y=-10x - 9
O y=-5x - 9
Answer:
y = -5x + 9.
Step-by-step explanation:
Lets look for the relation between x and y.
Try the first one:
When x = -2, y = -(-2) + 10 = 12
In the table y = 1 so its not this one.
Number 2:
x = -2, y = 10(-2) + 1 = -18 - Not thios one
Number 3:
When x = -2, y = -10(-2) - 9 = 11
Not this one
Number 4:
y = -5(-2) - 9 = 1
This is the one.
Check again with x = 0:
When x = 0, y = -5(0) - 9 = -9.
A charm bracelet costs $65, plus $25 for each charm. The equation −25x+y=65 represents the cost y of the bracelet, where x is the number of charms.
The bracelet cost:
2800 square feet at $20 a square foot how much would that cost
Help help help math math
Answer:
If I did the math right you should get this answer: x<=1
Step-by-step explanation:
5x<=-3x+8
5x+3x<=-3~x+8+3x
8x<=-3x+8+3x
8x<=-3x+3x+8
8x<=8
drag the correct symbol into the box to compare expessions
6^2-2^2___4(6+2)
A.≠
B.=
Simplify both sides to compare:
6^2 - 2^2 = 36-4 = 32
4(6+2) = 4 x 8 = 32
they are equal to each other.
Answer: B. =
The GRE is an entrance exam that many students are required to take in order to apply to graduate school. In 2014, the combined scores for the Verbal and Quantitative sections were approximately normally distributed with a mean of 310 and a standard deviation of 12.
What is the probability that a randomly selected score is greater than 334? Write your answer as a decimal
Using the normal distribution, it is found that there is a 0.0228 probability that a randomly selected score is greater than 334.
Normal Probability DistributionThe z-score of a measure X of a normally distributed variable with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex] is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The z-score measures how many standard deviations the measure is above or below the mean. Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.In this problem, the mean and the standard deviation are, respectively, given by [tex]\mu = 310, \sigma = 12[/tex]
The probability that a randomly selected score is greater than 334 is one subtracted by the p-value of Z when X = 334, hence:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{334 - 310}{12}[/tex]
Z = 2
Z = 2 has a p-value of 0.9772
1 - 0.9772 = 0.0228.
0.0228 probability that a randomly selected score is greater than 334.
More can be learned about the normal distribution at https://brainly.com/question/24663213
#SPJ1
What is the volume of a rectangular prism with length 7 cm, width 2 cm, height 5 cm?
Answer:
[tex]7x2x5= 70[/tex]
Hope This Helps! :)
The distance from any point on a circle to the center of the circle is the
radius
diameter
area
circumference
Answer:
Radius.
Step-by-step explanation:
● The distance from the centre to any other point on the circle is known as the radius.
Other Definitions:
● Diameter is the the distance from one point to another point of the circle which passes through the centre of the circle.
● The space enclosed by a figure is known as its area. Area of a circle = πr²
● Circumference of a circle is its outer perimeter. Circumference = 2πr
____________
Hope it helps ⚜
What do most banks offer with savings accounts?
A. No transaction fees
B. A larger amount of money
C. Lower minimums
D. Interest
Help help help help
Answer:
b = 12
Step-by-step explanation:
b/3 + 4 = 8
subtract 4 on both sides
b/3 = 4
multiply 3 with 4
b = 12
Sam poured 1/2 of the punch from a 3 litter bottle while serving guests at a gathering. How much punch ,in litters, is still left in the bottle?
Answer:
1.5 litres
Step-by-step explanation:
1/2 of the punch in a 3 litre bottle is found by dividing 3 by 2, splitting it in half. 3÷2=1.5, or 1 and a half litres
Arrange the three side
lengths in increasing
order.
Answer:
a < c < b
Step-by-step explanation:
The sum of the interior angles of a triangle is 180°
Therefore, the measure of the missing angle (opposite side c) is:
180° - 69° - 54° = 57°
Relationship between sides and interior angles of any triangle:
The shortest side is always opposite the smallest angleThe longest side is always opposite the largest angleTherefore, from inspection of the triangle:
a is opposite the smaller angle of 54°c is opposite the angle of 57°b is opposite the largest angle of 69°So the side lengths in increasing order are:
a < c < b
Rest angle:-
180-(69+54)180-12357Note that smaller side has smaller opposite angle
Hence the order is
a<c<bI took a drivers ed Final exam the other day and got a 91. there were 175 questions how many did i get wrong.
Answer:
Step-by-step explanation:
You got 91% of the questions right out of 175. In math words, this is saying that:
[tex]\frac{91}{100}*175=x[/tex]
[tex]x=159.25[/tex]
So, you got 175 - 159 = 15.75 questions wrong. The decimal could be from getting only part of a question wrong. So you got partial credit for one question
Answer: 15
Step-by-step explanation:
160/175
=0.914285714285 or 0.91
175-160
=15
...And there you go
Which of the following are solutions to the equation below?
Check all that apply.
5x^2 - 2x + 16 = 4x^2 + 6x
A. -6
B. 4
C. -4
D. -3
E. 18
F. 6
5x²-2x+16=4x²+6x
5x²-2x+16-4x²-6x=0
x²-8x+16=0
D= b²-4ac
= (-8)²-4×1×16
=0
x=-b/2a
= 8/2
=4
-> B
Answer:
4! I figured it would be more than just one answer but it’s only 4
Step-by-step explanation:
What is the median for this list of numbers? 2, 5, 8, 9, 11,3
6.5 because if you place the numbers from smallest to greatest and find the two numbers in the middle which are 5 and 8 you should add them and then divide by 2 and this is the answer
The tax rate is 3.9 what is the tax on $42 round to the nearest hundredth
Answer:
If the tax rate = 3.9% and the product u are buying is priced at $42 Then, the amount you will pay for the object will be, $42 + 3.9/100 * 42
Step-by-step explanation:
I hope this help
No biggy just need some help
Answer:
betwen year 5 and 6
Step-by-step explanation:
th prize will drop betwen 5 and 6 years.
i think its the correct answer
Okay, Middle school for me is from 9:30 AM to 4 PM. How many hours would that be? (I'm giving out brainliest)
Answer:
6 hours and 30 minutes my dude
Which of the following is evaluating to 3(y+4)-7?
What is the surface area of a cylinder that is 5 centimeters high
and has a diameter of 1.5 centimeters?
7.57 cm
B 8.6257 cm
C 10.57 cm
D 19.557 cm
To find the surface area:
⇒ let's define what makes up the surface area of a cylinder
⇒ it is made up of two circles as its bases and its side is a long
rectangular piece curved around
Area of Two Circles
⇒ Area of Circle Formula = [tex]\pi r^{2}[/tex]
⇒ Area of Two Circle Formula = [tex]2\pi r^{2}[/tex]
⇒ since r: is length of radius --> 0.75 cm (radius is half of diameter)
⇒ Area of Two circles: [tex]2\pi (0.75)^{2} =3.5343[/tex]
Area of Rectangular piece curved around to form Cylinder
⇒ length: circumference of a circle ⇒ [tex]2\pi r[/tex]
⇒ width: height of the cylinder ⇒ 5cm
⇒ Area of Rectangular piece: [tex]2*\pi *0.75*5=[/tex] 23.5169
Total Area = 27.0512 = 8.6257[tex]\pi[/tex] square centimeters ⇒ Choice (B)
Hope that helps!
Answer:
56.25
Step-by-step explanation:
i just did the test
What is the most logical first step in solving the equation x^2 + 6x + 9 = 10?
A. Take the square root of both sides of the equation
B. Subtract 10 from both sides of the equation
C. Factor the left side of the equation
D. Subtract 9 from both sides of the equation
A desk is on sale for $198.40, which is 32% of the regular price.
What is the regular price?
Which function corresponds to the graph below? A. f(x)= -4/2(x+1/2 +3 B. f(x)=4/2(x+1/2-3 C. f(x)=4/-2x(x+1+3 D. f(x)=4/-2(x+1)-3
Answer:
B.f(x)=4/2(x+1/2-3
A balloon archway has been ordered for decorating the high school gym for a 1950's
style prom. The archway will contain 417 balloons, each holding 1.1 liters of helium.
Each balloon has a mass of 0.027 grams when empty, and all the string and fixings
that hold the balloons together total another 36 grams. If helium has a density of
0.1785 grams per liter, what is the mass of the entire archway.
We will see that the total mass of the entire archway is M = 129.1578g
What is the mass of the entire archway?We know that each ballon weighs 0.027 grams for the plastic.
Now, we also need to remember the relation:
mass = density*volume.
Here, the density of helium is 0.1785 g/L
And the volume of each ballon is 1.1 L, then the mass of helium in each ballon is:
m = (0.1785 g/L)*(1.1 L) = 0.1964 g
Then the total mass of each ballon is:
M = 0.1964 g + 0.027g = 0.2234g
And there are 417 ballons, so the total mass (also adding the 36 grams for the strings) is:
Mass = 417*0.2234g + 36g = 129.1578g
If you want to learn more about mass, you can read:
https://brainly.com/question/1354972
Joe's softball team was in a tournament. If a team lost one game they were eliminated. His team won the tournament, defeating four other teams. How many teams were entered in the tournament?
The Sausage Hut is looking at a new sausage system with an installed cost of $330,000. This cost will be depreciated straight-line to zero over the project's three-year life, at the end of which the sausage system is estimated to have zero value. The project has no impact on net working capital. Each year during its three year life, the new system will increase the firm’s Sales by $455,000 and its Operating Cash Flow by $123,300.
If the tax rate is 30 percent and the discount rate is 9 percent, what is the NPV of this project?
Group of answer choices
-111,524
- $17,891
$19,405
$35,389
$1,136,217
Based on the net cashflow over the three year life, the NPV that Sausage Hut will realize is -$17,891.
What is the Net Present Value?First find the present value of the increased cashflows. As it is a constant amount of $123,300, we can treat it as an annuity.
Present value = Amount x (Present value of annuity interest factor, 9%, 3 years)
= 123,300 x 2.5313
= $312,109.29
The net present value is:
= Present value of cashflows - Amount invested
= 312,109.29 - 330,000
= -$17,890.71
= -$17,891.
In conclusion, option B is correct.
Find out more on Net Present Value at https://brainly.com/question/13228231.