Answers
[tex]\left \{ {{\frac{x}{2}-y=7 } \atop {-\frac{x}{7}+\frac{2y}{7}= -2 }} \right. <=>\left \{ {{\frac{x}{2}.2-2y=2.7} \atop {-\frac{x}{7}.7+\frac{2y}{7}.7= -2.7}} \right. <=>\left \{ {{x-2y=14} \atop {-x+2y=-14}} \right. <=>\left \{ {{0x=0} \atop {y={\frac{x}{2}-7}} \right.[/tex]
ANSWER: B
ok done. Thank to me :>
Integer solution
x= 2n, y=n-7, nEZ
real solution or you can use inverse operation to have addition
y= x/2-7 y=x[multiplied by] 2+7
oh and for the first one the choice is A the second one im sorry im not sure
Related Questions
A diver descends to a depth of –25.6 feet relative to sea level. How many feet must the diver ascend to reach sea level?
0.6 feet
25 feet
25.6 feet
256 feet
Answers
Hope this helps
Identify the terms, coefficients, and constants in the expression.
2m^2+15+2p^2
Answers
coefficients- 2 & 2
constants- m&p
coefficients: 2 and 2
constants m and p
which of these statements is true for f(x)=5x(6)^x
Answers
Answer:
The answer if B. Hope this helps.
Step-by-step explanation:
Cheryl writes 7 fewer posts than Kevin on a social media site.
If k represents kevin how would you write the expression
Answers
Answer:
C + 7 = k
Explanation:
Cheryl write less than Kevin but if we’re trying to find Kevin we need to get the inverse operation
associative property or commutative property, or identity property or zero property
Answers
b. Zero Property
c. Identity Property
d. Associative Property
b.) zero property
c.) identity property
d.) associative property
please solve the following problem and show how u got it
Answers
Answer:
a. 15mph
b. 10mph
c. 12mph
Step-by-step explanation:
a. 30/2=15
b. 30/3=10
c. 30+30=60
60/5=12
i think it's right, hope that helped
b10
c12
these are the answers....
A school assembly had 600 students in attendance, and 35% of them were first-graders. How many first-graders were at the assembly?
can u also list the formula on how to do this while ur at it pls and ty
Answers
Answer:
210 Were First Graders
Step-by-step explanation:
35 percent of 600 is the same as 35 per hundred of 600. We can therefore make the following equation:
35/100 = X/600
To solve the equation above for X, you first switch the sides to get the X on the left side, then you multiply each side by 600, and then finally divide the numerator by the denominator on the right side to get the answer. Here is the work to illustrate:
35/100 = X/600
X/600 = 35/100
X*600/600 = 35*600/100
X = 21000/100
X = 210
The work above shows the long way to explain how to calculate 35 percent of 600 in order to give you a foundation and better understanding of how to calculate percentage. In the future, you could use this simplified formula:
(Y * P)/100
In our problem "What is 35 percent of 600?", Y is 600 and P is 35:
(600 * 35)/100 = 210
And once again you see that the answer is 210.
Answer:
210 kids
Step-by-step explanation:
So the formula is basically part over whole is equal to x/100%
So for here it would be x/600 = 35/100
Solve that and you will get 210
A phone company advertises a new plan in which the customer pays a fixed amount of $ 25 per month for unlimited calls in the country and $ 0.10 per minute for international calls . If a customer paid 120 dollars , how many international minutes did they use ?
Answers
Answer: The answer would be 950 international minutes. Only if assuming that this is in one month since the question doesn't give much detail.
Step-by-step explanation:
X would be used to represent the number of months.
25+0.10x=120
0.10x=95
950 international minutes used
Answer:
950
Step-by-step explanation:
An equation to model this scenario would be: y = 0.1x + 25
y would mean the amount of money paid depending on x, which is the number of minutes.
In this problem, we know the amount of money. So we know y is 120.
We can then put 120 into the equation to find x.
120 = 0.1x +25
95 = 0.1x
x = 950
Therefore, x is 950.
Complete the statement. Type your answer as a number. 3 gallons =_____ pints
Answers
Answer:
24 pints
Step-by-step explanation:
Each gallon is 8 pints
Answer:
28.8228
Step-by-step explanation:
3 gallons = 28.8228 pints because 1 gallon = 9.6076
and 9.6076 × 3 = 28.8228.
please help me its very serious & i need an answer
Answers
Answer:
1
Step-by-step explanation:
What is the standard form for the speed of light
299 792 458
Answers
Answer:
Here U Go
Step-by-step explanation:
Its exact value is defined as 299792458 meters per second (approximately 300000 km/s, or 186000 mi/s).
Hope it help
plz mark me as brainlist
The area of a square root is 2.25m2. what is the length of each side of the square?
Show work pls, thank you.
Answers
Answer:
1.5 m
Step-by-step explanation:
Area = length * width
or we can say
Area = side1*side2
since they are the same we can say
Area = side * side
which also means area = side^2
so we have the area and we want the side, we need the inverse operation for squaring something. the inverse of squaring something is square rooting
so
sqrt(Area) = side
so
side = sqrt(2.25)
= 1.5 m
I feel like i made a short story long but i hope it helped =)
Find the units digit of the following within the indicated number base: $(14_8)^2$
(I will say brainliest whoever gets correct first.)
Answers
PLEASE HELP ME IM GIVING BRAINLIEST
Answers
Answer:
The one you chose is the correct answer.
Step-by-step explanation:
Adding all the [tex]x's[/tex] up, you will get [tex]3.38x[/tex]. Adding up all the non-variable numbers, you get 20.22. Your answer is C.
hope this helped.
explanation:
I need help with this question
Answers
Answer:
c
Step-by-step explanation:
V: 1248ft^3
b. Surface area
c. Volume
If the population of an ant hill doubles every 10 days and there are currently 100 ants living in the ant hill, what will the ant hill population be in 20 days?
Answers
Answer:
400
Step-by-step explanation:
The current number is 100, it doubles every ten days, and you're asking what the size will be in twenty days.
Beginning:
100 ants (ten days pass)
100 x 2 = 200
Middle:
10 of the 20 days have passed
Your new number is 200 ants
End:
200 ants (ten days pass)
Since every ten days the size doubles: 200 x 2 = 400
400 ants after 20 days
One out of every 3 players on a soccer team is new this season. There are 15 player on the team in all. How many players are new?
Answers
Answer : 5 players
Step - by - step explanation :
First, put the information down . . .
1 out 3 players are new this season
there are 15 players in total
Second, convert ( the denominator [ to 15 ] ) . . .
1/3 x 5/5 = 5/15 <-- 5 players are new this season
tip : when trying to do things like this - multiply the numerator and the denominator by the same number for accurate results !
The number of new players is 5.
What is division?Division is breaking a number up into an equal number of parts.
Given that, One out of every 3 players on a soccer team is new this season, There are 15 players on the team in all.
15/3 = 5
Hence, The number of new players is 5.
For more references on division, click;
https://brainly.com/question/21416852
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Which equation best represents the line?
y = 3/4x + 4
y = 4/3x + 4
y = 4x + 3/4
y = 4x + 4/3
Answers
Part 1 out of 2
Jill, Meg, and Beth are sisters. Jill is 3 years younger than Meg. Enter an algebraic expression based on this situation. Let m represent Meg's age.
The expression is _______
Answers
What is the ratio of the area of the triangle to the area of the rectangle?
A. 2
B. 1
C. 1/2
D. 2/1
Answers
We can see that both triangles occupy exactly half of the rectangle each, so the area of one triangle is half of the area of the rectangle
Courtney has $21.50 to buy a gift for her brother. She found a stuffed animal that costs $19.65. With 10.1% sales tax added on, what is the sales tax? What is the total cost of the stuffed animal with tax included? Will Courtney have enough money to buy the gift?
The sales tax is: $_________
The total cost is: $_________
Is it enough money?
Answers
Answer:
11.95
Step-by-step explanation:
21.50-19.65+ 10.1 = 11.95
What is the y-intercept of the line shown? (4 points)
a. 0
b. 1
c. 3
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Because they are like terms that is the lowest they can go
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Answer:
56m..................
You mix 23.385 grams of sugar and 12.873 grams of baking soda in a glass container for an experiment. You place the container on a scale to find that the total mass is 104.2 grams. What is the mass of the container
Answers
104.2-36.258=67.942
Answer=67.942
The mass of the container is 67.942 grams.
What is an expression?Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.
Given that amount of sugar is 23.385 grams, the amount of soda is 12.873 and the total mass is 104.2 grams.
The weight of the container will be calculated as below:-
Total weight of sugar and sods = 23.385+12.873=36.258
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Therefore, the mass of the container is 67.942 grams.
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A post office has three hundred forty-one pieces of junk mail they want to spit evenly between thirty mail trucks. How many extra pieces of junk mail will they have if they give each truck the same amout.
Answers
Answer:
11 with a remainder of 11
Step-by-step explanation:
the answer is 11 extra
Answer:
So the question is 341 divided by 30 = 11
I am thinking 11 is the remainder?
Step-by-step explanation:
HELP ME PLEASEEEEEEEAAAA THANKKKK UUUUUUUUUUU<3333
What is the ratio of boys to girls on the street. Write the ratio in lowest terms.
Answers
The most common way to write a ratio is as a fraction, 3/6. We could also write it using the word "to," as "3 to 6." Finally, we could write this ratio using a colon between the two numbers, 3:6.
If the distance between the wall and the bottom of the plywood was three feet, what was the distance between the floor and the top of the plywood?
What is 16−−√?
Answers
Answer: 4
Step-by-step explanation:
The square root of 16 is 4 , because 4 squared is 16.
Answer:
4
Step-by-step explanation:
*Brainly Deleted this Answer* Why?
Find the sale price with percent markdown.
Markdown (savings) = percent off (% save) x original cost
Sale price = original cost – savings
A store advertises a 30% markdown on a gaming console. It normally sells for $660. How much would you save on the console? And what is the final sale price?
The savings is: $_________
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Answers
Answer:
56 Lemons
Step-by-step explanation:
If you drew a line segment from the point when Kiley’s plane took off to the point when she got off the plane, at which point would the line segment end?
Answers
Answer:
The line segment would end when Kiley got off the plane.
Step-by-step explanation:
Pretty simple unless i'm missing something.