Answer:
Yes it is.
Step-by-step explanation:
Just multiply everything by 2.
mark got 14 problems wrong on the test. his score was 72% correct.how many problems were on the test
9514 1404 393
Answer:
50 problems
Step-by-step explanation:
The percentage wrong was 100% -72% = 28%. Then the number n of problems on the test was ...
14 = 0.28·n
n = 14/0.28 = 50
There were 50 problems on the test.
what ius the symoble for iron
Answer:
fe
Step-by-step explanation:
Ericka observed the total variation in the water level over 6.2 years to be −13.64 mm. She compared this to the average annual trend, which shows the water level rising 1.8 mm/year. Remember, she used 6.2 years as her time period. What is the difference between how much average water levels rose and how much the water level fell in the part of the river she observed?
__________millimeters
Answer:
In the area that she observed, the water level fell 13.64mm over 6.4 years, for an average annual rate of change of: -13.64 ÷ 6.2 = -2.2 mm/ year.
The net of a triangular prism and its dimensions are shown in the diagram. what is the lateral surface area of the triangular prism in square centimeters
A-264 cm
B-240cm
C-225cm
D “Not here”
Answer: 120 sq in.
Step-by-step explanation:
Find the magnitude of angle A if cos A = 0.5
Step-by-step explanation:
[tex]A = {cos}^{ - 1} 0.5 \\ \: \: A= 60[/tex]
The chart below shows the density of three different liquids. Which illustration correctly shows how these liquids would appear if they were poured slowly into a cylinder?
Answer:
A
Step-by-step explanation:
Though i am unable to attach an image of the question here. However, i will do my best to explain quite well.
The densities of the liquids are;
A - 13.6 g/ml
B- 0.8 g/ml
C- 1.0 g/ml
The most dense liquids will be found at the bottom while the least dense liquid is topmost liquid. This implies that A will be found at the bottom followed by C and finally B.
HELP HAVING A BAD DAY
Brandon decided to make his own hand sanitizer.
To be effective, hand sanitizer should contain 60% alcohol.
How much pure alcohol does Brandon need to make
a)150ml of hand sanitizer?
b)250ml of hand sanitizer?
I WILL AWARD BRAINLIEST FOR THE CORRECT ANSWER
Answer:
A - 90ml
B - 150ml
Step-by-step explanation:
A - 150ml ÷ 100 = 1.5 x 60 = 90ml
B - 250ml ÷ 100 = 2.5 x 60 = 150ml
Brandon needs 90 ml and 150 ml of alcohol to make 150 ml and 250 ml hand sanitizer.
What is a percentage?A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.
Given:
Brandon decided to make his own hand sanitizer.
To be effective, hand sanitizer should contain 60% alcohol.
a) 150ml of hand sanitizer;
Use percentage formula,
Percentage of alcohol = 150 x 60 / 100
Percentage of alcohol = 90 ml
a) 250ml of hand sanitizer;
Use percentage formula,
Percentage of alcohol = 250 x 60 / 100
Percentage of alcohol = 150 ml
Therefore, he needs 90 ml and 150 ml of alcohol to make 150 ml and 250 ml hand sanitizer.
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AAA Packages Plus sends packages overnight for $5 plus $0.25 per ounce. United Packages charges $2 plus $0.35 per ounce.
a) Mr. Molinari noticed that his package would cost the same to mail using either service. Write an equation to represent this situation.
b) How much does Mr. Molinari’s package weigh?
a. The equation that both services would cost the same is
0.25x + 5 = 0.35x + 2.
b. The weight of Mr. Molinary's package is 30 ounces.
What is a numerical expression?A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.
Given, AAA Packages Plus sends packages overnight for $5 plus $0.25 per ounce.
United Packages charges $2 plus $0.35 per ounce.
Assuming the no. of ounces to be x.
∴ 0.25x + 5 = 0.35x + 2.
0.25x - 0.35x = 2 - 5.
- 0.1x = - 3.
x = 3/0.1
x = 30 ounces.
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what conclusions can you draw about the roots of the equation x^3+x^2-2x+12=0
Answer:
x=-3
Step-by-step explanation:
If x=-3, then
x³+x²-2x+12=-27+9+6+12=-27+27=0
If this is true, then x+3 is a factor. So:
x³+x²-2x+12/x+3=x²-2x+4
So the factors of x³+x²-2x+12 are:
(x+3)(x²-2x+4)
((x²-2x+4) has no real roots)........
I need help!!!! Need the answers now please!!
Answer:
Answer of this equation is (x-2)^2/ (X+3)^2
Step-by-step explanation:
x^2-4/X+3 × x-2/ x^2+5x+6
(X+2)(x-2) / X+3 × x-2/ x^2+(2+3)X+6
(X+2)(x-2)/X+3 × x-2/(X+2)(X+3)
(x-2)(x-2)/(X+3)(X+3)
(x-2)^2/(X+3)^2
answer the question and ill mark you brainliest!
he is yes
also i have a question, could you do me a favor?
can you answer this question just say anything bc this persoon wants to give me brainliest pls help us out https://brainly.com/question/26025079
Which of the following functions maps 3 to -5?
O f(x) = 4 – x2
O f(x) = x-5
O f(x) = -x + 2
O f(x) = x + 8
Answer: A
Step-by-step explanation:
  
Can someone pleaseee help if you’re correct I’ll
Give u brainlist !
Answer:
Step-by-step explanation:
Statements Reasons
1). UW bisects ∠VUX 1). Given
2). UW bisects ∠VWX 2). Given
3). ∠VUW ≅ ∠WUX 3). Definition of angle bisector
4). ∠UWV ≅ ∠UWX 4). Definition of angle bisector
5). UW ≅ UW 5). Reflexive property
6). ΔUVW ≅ ΔUXW 6). ASA postulate of congruence
what is the measure of angle A in the triangle
30 minutes to 90 minutes as a fraction in lowest terms
Step-by-step explanation: 30:90 = 10:30 =1:3 = 1/3
Please help me with this
A map has a scale of 4.5 inches = 36 kilometers. If the distance between two cities is 8.5 inches, what is the actual distance between the cities
Answer:
68 km
Step-by-step explanation:
A map has a scale of 4.5 inches = 36 km
We need to find the actual distance between the cities if the distance between two cities is 8.5 inches.
We can find 1 inch is equal to what as follows :
1 inch = (36/4.5) km
For 8.5 inches,
[tex]8.5\ \text{inches}=\dfrac{36}{4.5}\times 8.5\\\\=68\ km[/tex]
Hence, the actual distance between the cities is 68 km.
find the distance for d
Answer:
320 i think
Step-by-step explanation:
Write an equation in slop intercept for of the line with the following:
Slope: -3/4
y-intercept: -5
Answer:
y = -3/4x -5
Step-by-step explanation:
The slope always goes first, then variable x and the y intercept comes last
helphelphelphelphelphelphelphelphelphelphelphelphelphelphelphelphelphelphelphelphelpvv
Answer:
I think it's A
Step-by-step explanation:
Help I need answers plzplzplz
Answer:
(2,0) , (4,-20) and (-1,-1)
Step-by-step explanation:
I NEED HELP WITH THIS ASAP THERE IS ALSO ONE MORE QUESTION TO THIS PROBLEM PLEASE HELP
Answer:
whoa hold up there friend
Step-by-step explanation:
it will be 4,6,8,10 and the 2nd one is $10,$15,$20,$25
The Bryant family bought 7 bags of cookies. Each bag had 13 cookies. They have since eaten 29 of the cookies. How many cookies do they have left?
Answer:is 7x13=91-29=62
Step-by-step explanation:
i took the test on edge
91
Answer:
solution
1bag =13coikies
7bags=???
we take (7bag ×13 cookies)\1bagthen it will be 91cookiesthen we take 91COKIES-29COKIE so us to get the number of cookies left it will be 62 cokiesA telephone company offers two different types of billing. The first choice is to pay $10.00 per month plus $0.09 per MB of data. The second choice is to pay $16.00 per month plus $0.07 per MB of data.
How many MB of data would you have to use in one month in order for both plans to cost the same amount? Explain how you determined your answer.
Answer:
0.09x +10 is the first choice
0.07x +16 is the second choice (set the two data plans equal to each other)
0.09x +10 = 0.07x +16 (subtract 0.07x from both sides)
0.02x +10 = 16 (subtract 10 from both sides)
0.02x = 6 (divide both sides b 0.02 to isolate x)
x= 300 MB of data (the answer)
Step-by-step explanation:
I hope this helps :))
help pleaseeeeee! I need an answer quick please
Answer:
subtraction
Step-by-step explanation:
b= 40 - 5
40- 5 =35
b=40
Answer:
addition
Step-by-step explanation:
*BRAINIEST & 15 POINTS*
* MULTIPLE CHOICE*
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
Isosceles right
Step-by-step explanation:
It's a right triangle because one of the angles is 90 degrees
It's isosceles because two sides are 5.57
1995. Were 57 million cats as pets in the U.S. By 2003this number was 61 millionWrite a linea model for the number of cats as pets. Then use the model to predict the number of cats as pets in 2015
Answer:
Cats as pet in 2015 = 6 million
Step-by-step explanation:
Given:
Cats as pet in 1995 = 57 million
Cats as pet in 2003 = 61 million
Find:
Cats as pet in 2015
Computation:
Difference in year = 2003 - 1995
Difference in year = 8 year
Difference in year = 2015 - 2003
Difference in year = 2015 - 2003
Difference in year = 12 year
Difference in number = 61 - 57
Difference in number = 4 million
So,
Cats as pet in 2015 = 4 million x [12/8]
Cats as pet in 2015 = 6 million
write 1.054 in words
Answer:
one and fifty-four thousandths
Step-by-step explanation:
The 1 is easy.
The 4 is in the thousandths place, so the decimal part is 54/1000.
Answer: one and fifty-four thousandths
A 2-column table with 4 rows. Column 2 is labeled Hours x with entries 1, 2, 3, 4. Column 2 is labeled Dollars y with entries 1.25, 2.50, 3.75, 5. On a coordinate plane, a line goes through (1, 1.25) and (4, 5).
The models represent a real-world problem. Select the statements that describe the problem. Select all that apply.
The two variables are dollars and hours.
The two variables are 1 and $1.25.
The correct equation is y = 1.25x.
The correct equation is y = 1x.
Melissa charges $1.25 an hour to pet-sit.
Melissa charges $1 more than the number of hours she pet-sits.
The two variables in this problem are dollars and hours
Melissa charges $1.25 per hour to pet-sit.
What are coordinates in a graph?The coordinates in a graph indicate the location of a point with respect to the x-axis and y-axis.
The coordinates in a graph show the relationship between the information plotted on the given x-axis and y-axis.
We have,
The table and the given points on the coordinate plane provide information about the relationship between the number of hours of
pet-sitting (x) and the amount of money earned (y) by Melissa, who charges a fixed rate of $1.25 per hour for pet-sitting.
The equation of the line passing through the points (1, 1.25) and (4, 5) can be found by using the slope-intercept form:
y - y_1 = m (x - x_1),
where m is the slope and (x_1, y_1) is a point on the line.
Using the two given points, we have:
m = (y_2 - y_1)/(x_2 - x_1)
= (5 - 1.25)/(4 - 1)
= 1.25
y - 1.25 = 1.25 (x - 1)
y = 1.25x - 0.75
This means that for each additional hour of pet-sitting, Melissa earns an additional $1.25.
Therefore,
The two variables in this problem are dollars and hours
Melissa charges $1.25 per hour to pet-sit.
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Answer:
The two variables are dollars and hours. The correct equation is y = 1.25x. Melissa charges $1.25 an hour to pet-sit. or 1,3,5
If you took all of the DNA out of your body would it all fit on a plate? If not a plate what would it fit in? WILL GIVE BRAINLIEST
