Answer:
the answer is 27
Step-by-step explanation:
you are subtracting 7 each time it would be 27
51-7=45
45-7=39
39-7=33
33-7=27
51,45,39,33,27
What could be a negative effect of a contaminant entering a water system?
1. The contaminant is trapped in the soil or filtered naturally by percolating through the layers of the soil.
2. More plants grow and compete with other plants for water.
3. Small fish die and a ripple effect cause others to die in the food web.
4. Animals are not affected by the contaminant and live as they always do.
Answer: 3
Step-by-step explanation:
Dirty water can cause death and lead to diseases.
15=4n - 5
show your work please
Answer:
5=n
Step-by-step explanation:
15=4n-5
15= 4n
+5
20=4n
20/4=4n/4
5=n
A small measuring spoon holds 5 milliliters. How many spoons would 1 liters of liquid fill? (4 points)
5 spoons
200 spoons
500 spoons
5,000 spoons
A family buys 6 airline tickets online. The family buys travel insurance that costs $17 per ticket. The total cost is $1,086. Let x represent the price of one ticket. Write an equation for the total cost. Then find the price of one ticket.
Which equation represents this situation?
Answer:
1086= 6x + 102
Step-by-step explanation:
to find price of 1 ticket
1086=6x +102
-102 -102
984= 6x
------ -----
6x 6x
x= 164
one ticket is $164
answerrrr pwlewaaaaaase
needs some help with this please!
Answer:
y = mx
Step-by-step explanation:
if there is no '+ b' y-intercept is 0
I WILL MARK BRAINLIEST! This is a multiple choice question!
Here is a system of linear equations:
6x-y=18
6x−y=18
4x+2y=26
4x+2y=26
Select all the steps that would help eliminate a variable and enable solving.
Group of answer choices
A. Multiply the first equation by 4 and the second equation by 6, then subtract the resulting equation.
B. Multiply the first equation by 2, then add the result to the second equation.
C. Multiply the first equation by 2, then subtract the second equation from the result.
D. Multiply the second equation by 6, then subtract the result from the first equation.
*I am assuming that each equation only appears once instead of twice in this problem
6x-y=18
4x+2y=26
We are solving by elimination, and to do that, we need to make the coefficient of one of the variables the same for both equations. The easiest way would be to multiply the top equation by 2 which would result in
12x-2y=36
4x+2y=26
As we see now, -2 and +2 can cancel out if we add the two equations together. So B is correct.
The other solution to this problem is to get a common coefficient for x to do that we first find the least common multiple of 6 and 4 which is 12
so to get 12 we need to multiply equation 1 by 2 and equation 2 by 3
resulting in 12x-2y=36 and 12x+6y=78 which we can solve by subtraction
Although this second way works, we have to realize that this is not one of the solutions. Instead the solution proposed to multiply by 4 and 6 which actually is just what I did above but multiplying everything by 2 again.
In conclusion, the answers should be A and B
Answer:
a b
Step-by-step explanation:
Please help I need it
Answer:
power of 10, add or subtract keep the power of 10
to multiply, coefficients and add the powers of 10
to divide you must divide the coefficients and subtract the powers of 10
simplify the square root of 1.
Answer:
√1 in the radical form and as (1)½
Step-by-step explanation:
Answer:
any root of 1 is 1
Step-by-step explanation:
Choose the quadrants on a coordinate plane which represent the location of an (x;y) pair satisfying the following equation: |x|+|y|=|x+y|
Answer:
On any quadrant you choose the points each will always be positive
Step-by-step explanation:
The absolute value of a negative number is positive and the same goes for a positive number (the absolute value will always be positive) because it is how many numbers it is away from 0. For Example; the absolute value of -4 is +4 because it is 4 numbers away from 0. If |x|+|y| = |x+y| then an example would be |-4| + |3| = |-4+3| it would be 7 because the |-4| is 4 and the |3| is 3 giving you the sum of 7
Hope this helps
HELP AAASAP I WiLL GiVE BRAIN
Answer:
Step-by-step explanation:
Answer:
Here is a the answer
Step-by-step explanation:
Hello can someone answer this please? It's a math problem. If u can, then just submit a random answer after. Thanks!
Answer:You have to take a picture because we can't open the link you your school learning system
Step-by-step explanation:
In an experiment, a coin is flipped 600 times. The coin landed on tails 272 times. Which of the following statements is true?
Group of answer choices
There is no experimental or theoretical probability.
The theoretical probability and experimental probability are equal.
The theoretical probability is higher than the experimental probability.
The experimental probability is higher than the theoretical probability.
Answer:i feel like its most likely gonna be the last one
Step-by-step explanation:
x3+y3+z3=k, is this correct
Answer:
No
Step-by-step explanation:
Since there is No solutions found
Hope this helps
Answer:
This equation means that x to the third power, plus y to the 3rd power, plus z to the 3rd power equals some sum.
Step-by-step explanation:
As long as the math and variables on the left side of the equation, equal whatever number the right side of the equation represents, then it is correct.
Could someone at least help me with these? Please :')????? This is due in 2 hoursssss
Answer:
a) 36cm^2
b) 609m^2
c) 18cm^2
d) 30cm^2
i need someone else to check this because i mooted it on a break.
Step-by-step explanation:
For a, we can solve for the larger rectangle and the smaller rectangle and subtract the smaller rectangle's area from the larger one. 12*5=60 and 3*8=24. 60-24=36.
For b, we can do the same thing, solving for the larger shape then the smaller. We can break up the shapes. We can split the larger shape into a rectangle measuring 17 by 36 and a rectangle measuring 14 by 11. This will give us a total area of 766. The smaller shape can be split into 7*7 and 6*18 with a total area of 157. The resulting number from the subtraction is 609.
for c, We can find the triangles. The picture shows that the 8cm side is broken in to parts of 4. the area of the larger is 24, and the smaller 6. the resulting number is 18.
for d, we can find the larger rectangle and the triangle. 12*4=48, and the triangle seems to be isoceles, so it's area is 18. The area of the shaded part is 30.
You are having a pizza - making party.
You will need 6 ounces of dough and 4 ounces of sauce for each person ( including yourself, the host ) .
Once you have a total count of guest, you buy exactly the needed amount of all the ingredients . The dough and sauce that you buy weigh 130 ounces all together.
1. How many ounces of dough did you buy?
2. How many ounces of sauce did you buy?
3. Num. Guest 0ω0
Worth 10 points . . .
Answer:
13 guests, 72 ounces of dough, 58 ounces of sauce
Step-by-step explanation:
6 ounces of dough plus 4 ounces of sauce is 10 ounces so 130 divided by 10 is how you get your guests. Then multiply both 6 and 4 by 13 to get the ounces of both dough and sauce
HELPPPP!
In the figure, j || k and MZ7=659
What is the mZ6
2
Enter your answer in the box.
6
8
Answer: the angle of 6 is 112 degrees .
The balance of an account after t years can be found using the expression 6000(1.02)^t where the initial balance was $6000. By what percent does the account increase annually? a 1.02% b 102% c 0.02% d 2%
9514 1404 393
Answer:
(d) 2%
Step-by-step explanation:
The base of the exponent is the "growth factor". It is 1 more than the "growth rate", the fraction of change in 1 year.
growth factor = 1 + growth rate
1.02 = 1 + 0.02
growth rate = 0.02 = 2%
The account increases 2% annually.
WHAT IS THE VARIABILITY???
Answer:
April is 17 and june is 10
Step-by-step explanation:
PLEASE HELP ME !!!!!!!
Answer:
x=22
Step-by-step explanation:
90-68=22
i got 90 because a right angle is 90 degrees.
(PLS HURRY) Richard ran the route A-B-C-D-E-F-G-H-A. Which of the following paths taken by Richard appear to be perpendicular to path BC?
A. DE
B. CD
C. FG
D. AH
Answer:
The answer is B. CD, and if this was an answer it would also be AB.
Step-by-step explanation:
Perpendicular is the line that it makes a 90 ° angle with, or a right angle.
Subtract the rational expression
Please show steps
Step-by-step explanation:
abcdefghijklmnopqrstuvwxyz
1/4 of Shawn's socks are gray. He has 24 socks. How many gray socks does he have?
Question 4 options:
4
6
8
dont you dare to say it can be solved with simple knowledge because i do not have that knowledge and i need help all the time and stuff explained
Answer:
1/4 of 24 is 6
Step-by-step explanation:
1/4 in decimal form is 0.25 or .25 and we know that he has 24 socks in total so we then multiply the decimal of the fraction with the total amount of socks...
1/4 = 0.25
0.25 x 24 = 6
shawn has 6 gray socks
Hope i could help!!!
Answer:
The answer is 6 grey socks.
Step-by-step explanation:
Set it up like a proportion:
[tex]\frac{1}{4} = \frac{x}{24} \\[/tex]
Cross multiply:
24=4x
divide to isolate "x"
24/4= 6 socks
DO THE MATH PLEASE this is for a grade on my part
landen's front yard lawn measures 20 feet by 8 feet. he counts to find that there are 120 blades of grass per 1 square inch. how many blades of grass are in the entire lawn?
Answer:2764800
Step-by-step explanation:First step is to convert feet into inches:
1 foot = 12 inches
20feet = 20*12=240 inches
8feet = 8*12=96 inches
Now we can calculate total area:
A = height * width
A= 240 * 96
A=23040 inches²
We know the amount per one inch² and we need to find out total number of blades:
1 inch² 120 blades
23040 inches² x blades
Now we cross-multiply numbers:
1*x = 23040 * 120
x= 2764800
There are total of 2764800 blades in the entire law
Clare is painting some doors that are all the same size. She used 7 liters of paint to cover 812 doors. How many liters of paint are needed for 1 door?
Answer:
It would take 1/116 of a liter.
Step-by-step explanation:
If you take 812/7.. You get 116. You then know thats one liter of paint. But you dont want to know what one liter is. You need to know what one door is. So you make that 1/116 which is one door out of the 116 doors in that one liter of paint. Hope this helps.
Sunil is the ticket manager at a local soccer field. He wants to conduct a
survey to determine how many games most spectators attend during the
soccer season
Part A.) What is the population for Sunil’s survey? Give an example of a way that Sunil could collect a representative sample of this population.
Answer:
Sunil can randomly survey spectators at the soccer field to determine how many games they have attended
A stainless steel patio heater is a square pyramid. The length of one side of the base is 25.4 The slant height of the pyramid is 89.7 What is the height of the pyramid?
I NEED THE ANSWER FAST
The equation y = 14x represents the number of pages Printer A can print over time, where y is the number of pages and x is time in minutes. This table shows the number of pages Printer B can print over time.
How many pages does each printer print per minute, and which printer prints at a faster rate?
Complete with the correct statements.
- Printer A prints 12, 14, 16 or 48 pages per minute.
- Printer B prints 12, 14 16, or 48 pages per minute.
- The printer that prints at a faster rate is Printer A or B.
Printer B
Time (min) Pages Printed
3 48
5 80
8 128
12 192
Write a story problem to go with the multiplication problem 4 x 2/3. Then,solve the problem.
Please hurry i have a day left so please help
Answer:
8/3 or 2 2/3 orrrrrr 2.666666
My recipe calls for 2/3 of a cup of sugar but I want to make 4 trays of cookies. How many total cups would I have if I did the recipe four times over?
Some students equally share 5 baskets of . Each basket has 18. Write an algebraic expression to represent this situation. Then explain how you chose which variable and operations to use.
Answer:
90
Step-by-step explanation:
18x5= 90
or: 90 divided by 18 =5
or: 90 divided by 5 =18