Yo no hablo español v; pprfavor respete mi desisiones unu
y=-x+7 y=2x+1 solve using equations
Answer:
x=6,y=13
Step-by-step explanation:
Eliminate the equal sides of each equation and combine.
x+7=2x+1
Solve x+7=2x+1
x=6
Evaluate yy when x=6
y=13
The solution to the system is the complete set of ordered pairs that are valid solutions.
(6,13)
The result can be shown in multiple forms.
Point Form:
(6,13)
Equation Form:
x=6,y=13
Jessica estimated that her family used 30% more water this month compared to last month . they used 12000 gallons of water last month , how much water did they use this month
Answer:
15,600 Gallons
Step-by-step explanation:
The 30% of 12000 is 3600 thus, Jessica's family used 15600 gallons of water.
What is the percentage?The percentage is defined as a given amount in every hundred. It is a fraction with 100 as the denominator percentage is represented by the one symbol %.
The percentage is also called the indicating hundredths. Thus, 2% is two-hundredth, which means 2%=2/100=0.02.
As per the given,
Last used of water = 12000
30% of 12000 = (30/100)12000 = 3600
Water used in the current year = 12000 + 3600 = 15600 gallons.
Hence "The 30% of 12000 is 3600 thus, Jessica's family used 15600 gallons of water".
For more about the percentage,
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There are a total of 96 children in Years 4, 5 and 6
37 of these children cannot swim.
11 children in Year 4 cannot swim.
21 children in Year 5 can swim.
There are 30 children in Year 6
18 of these 30 children can swim.
(i) Work out the number of children in Year 4 who can swim.
Answer: 20 children
Step-by-step explanation:
Given
Year 4: 11 cannot swim
Year 5: 21 can swim
Year 6: 18 of 30 can swim
Total 96 children
Total 37 cannot swim
First Step: find the number of people from year 5 who cannot swim
There are 30-18=12 people who cannot swim in year 6There are 11 who cannot swim in year 4Thus, we use the total number [37]-[year 4+year 6]=37-23=14 people who cannot swim in the year 5Second Step: find the number of children in year 5
There are 21 children who can swimThere are 14 children who cannot swim21+14=35 childrenThird Step: find the number of children in year 4 who can swim
There are 30 children in year 6There are 35 children in year 5There are 11 children in year 4 who cannot swimThere are in total 96 children96-30-35-11=20 children in year 4 who can swimHope this helps!! :)
Please let me know if you have any questions
I'm not too sure how to do this please help.
Answer:
Step-by-step explanation:
14x + 7° = 44° + 9x + 3°( exterior angle of a triangle is equal to the sum of two opposite interior angles )
14x - 9x = 47° - 7°
5x = 40°
x = 8°
Now
< STW = 14x + 7° = 14 * 8° + 7° = 119°
Step-by-step explanation:
PART A) 14x + 7 + 9x + 3 + 44 degrees = 180 degrees
add the like terms together
23x + 10 degrees + 44 degrees = 180 degrees
23x + 54 degrees = 180 degrees ( i added the 10 and 44 together to make it easier for me to understand)
minus 54 from both sides:
23x + 54 degrees = 180 degrees
- 54 - 54
that leaves you with:
23x = 126
finally divide 126 degrees by 23 to get x all alone.
the answer is x = 5.47 but you can also round the answer up to 5.5.
PART B)
substitute the letter with the number:
14 × 5.5 or 5.47 = 77 + 7 = 84 degrees
I NEED HELP ASAP!!! I'LL GIVE BRAINLIEST TO THE CORRECT ANSWER!!!
Answer:
v=18
u=4
Step-by-step explanation:
v/3=6
v=18
2u+2=5u-10
3u=12
u=4
Answer:
Step-by-step explanation:
What property is this ?
a(b + c) = ab + ac
Answer:
distributive I'm pretty sure!
Step-by-step explanation:
i hope this helps have a great day:)
Find the volume of a rectangular pyramid, with a height of 12 cm, length of 8 cm, and a width of 6cm.
Answer:
192 cm^3
Step-by-step explanation:
Volume equals Area of the base times the height divided by three.
V = length * width * height
3
V = 8 * 6 * 12 = 192 cm^3
3
hurry please!
Choose the statement that is not true.
A. The rational number system is closed under addition, but not multiplication.
B. An irrational number cannot be a repeating decimal.
C. When you multiply a rational number by an irrational number, the product will always be irrational.
D. Other than perfect squares, all square roots are irrational.
Answer:
A. the rational number system is closed under addition, but not multiplication
Step-by-step explanation:
may i pleaseee have brainliest
I am a block.
I have 3 faces that are
rectangles.
I have 2 faces that are
triangles.
Answer: Triangular Prism I think
Step-by-step explanation:
answer plz?!?! and explanation plz?!?
Answer:
d
Step-by-step explanation:
Radius = 4
area:
4x4x3.14x12=602.88
PLease help with this i will give brainliest
Answer:
Probably -3
Step-by-step explanation:
If it's going by 3s, then it should be -3.
Answer:
-3
Step-by-step explanation:
A number z squared, decreased by 7
9514 1404 393
Answer:
z² -7
Step-by-step explanation:
A square is indicated using an exponent of 2. "Decreased by 7" means 7 is subtracted.
z squared, decreased by 7 is ...
z² - 7
Please help ASAP really desperate
Answer:
m= 3/7
Step-by-step explanation:
I'm assuming the question is solve for the variable, m.
First step is to isolate the variable
In other words, let's move everything (but m) from the left side to the right side
To move 7 to the right side, we can either divide both sides by 7 or multiply both sides by 1/7 (both equal the same thing)
7/3m × 1/7 = 1 × 1/7
1/3m = 1/7
Now we must move 1/3 from the left to the right side
We can use the reciprocal, 3/1, to do this
1/3m × 3/1 = 1/7 × 3/1
m = 3/7
A city receives 4 inches of snowfall every 6 hours. Write and graph a function that describes the relationship. How long does it take to receive 1
foot of snow? I just need the y= blank part I’m really in need of this for a project thanks
Answer:
y= 2/3x
Step-by-step explanation:
Hi, the slope-intercept would be y= 2/3x. This is because the city receives 4 inches of snow every 6 hours. 4/6 simplified is 2/3.
Find the missing value to the nearest hundredth cos=4/38
Answer:
83.96 (approximately)
Step-by-step explanation:
I am not completely sure what the problem is asking, just like the last one, but I believe that you are just supposed to take the inverse of cosine. So, in your calculator, make sure it is in degrees mode, then usually you have to click the 2nd key and then cosine. You use the inverse of cosine when two sides are given, but you are not given the angle.
It should look like:
[tex]cos^{-1}(\frac{4}{38})[/tex], which is approximately 83.96.
Hopefully this is right, if not, please let me know. Good luck.
What Is the measure of angle D?
Answer:
Step-by-step explanation:
2x + 15 + x + 90 = 180
3x + 105 = 180
3x = 75
x = 25
2(25) + 15 = 50 + 15 = 65 for m<D
Pleaseee helpp meeee
Answer:
7
Step-by-step explanation:
The new expression would be: 2(10) / 5 + 3. Using PEMDAS, first multiply 2(10) to get 20. Now you get: 20 / 5 + 3. Using PEMDAS, now divide 20 / 5 to get 4. The new expression is 4 + 3. Now, add to get 7 as your answer.
Hope it helps!
A. y+ 1 = 2(x-1)
B. y-1 = 2(x+1)
C. y + 1 = -2(x-1)
D. y-1 = -2(x + 1)
PLS HELP ASAP WILL MARK U BRAIN-LIST THANKS
6. Which function is equivalent to y=3( x + 2)2 + 7?
Answer:
3x+45
/3x /3x
x= 15
Please help!!!!!!!!!!!!!!
Answer:
A=-4
B=4
C=-4
D=4
Step-by-step explanation:
rewrite 3^-4 without negative exponents
Answer:
[tex]\frac{1}{3^{4} }[/tex]
Step-by-step explanation:
You can rewrite 3⁻⁴ as 1/(3⁴) or 1/81 without negative exponents.
What are the laws of the exponents?The product rule is an exponent rule that states that when you multiply similar bases, the add exponents.
For example, (a²)·(a³) = a²⁺³ = a⁵
You can rewrite 3⁻⁴ as 1/(3⁴) because any number raised to a negative exponent is equal to 1 divided by that number raised to the opposite positive exponent.
So 3⁻⁴ = 1/(3⁴) = 1/81
Another way, you can think of it as "flipping" the base, i.e. (1/3)⁴ = 1/81
Learn more about the polynomial here:
brainly.com/question/11536910
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Find the area of the trapezoid by decomposing it into other shapes
Answer:
60 cm ( squared )
Step-by-step explanation:
you can find the area of the trapezoid ( by decomposing it into other shapes ) by separating two triangles, and using the formula to find the area of triangles, which is A= 1/2 ( b x h ) and add the answer to those together ( 16 cm squared and 4 cm squared ), and after that, you can find the area to the rectangle by multiplying the l x w, which is 10 x 4 ( after separating the triangles.). That equals 40, and when you add them all together ( 16 + 4 + 40 ) it equals 60 cm (squared).
Helppppppppppppppppp plzzzzzzzzzzzzzzzzzzzzzz
PLS COME ASAP PLS!!!!
Answer: 9/2
Step-by-step explanation:
21=2(6) + 2(?)
21=12 + 2(?)
9=2(?)
(9/2)=?
Simplify (g^6)^10 how do I do this? Can someone help
Answer:
g⁶⁰
Step-by-step explanation:
(g⁶) ¹⁰
When you raise an exponent to another exponent, you multiply the exponents.
6 × 10 = 60
(g⁶)¹⁰ = g⁶⁰
Answer:
g^60
Step-by-step explanation:
multiply the exponents 6 and 10 and it will be 60 like this g^60 I hope this helped you :) Im sorry if it was wrong
Mary drew 79 diagonals in a convex polygon. What is the fewest number of sides her polygon might have had?
Help, I need this soon!
Answer:
1a. x=2 1b. x= -1
Step-by-step explanation:
Please help and explain thanks I’ll give brainiest! !!!???!!!!???
Thanjs
Can someone show me how to solve this
(-12)+7
Answer:
-5
Step-by-step explanation:
negative 12 + positive 7 = 5
so....
it is basically -12 + 7
I NEED HELP NEEDS TO BE DONE IN 10 mins
Standard to Slope Intercept Form
Put the following equation of a line into slope-intercept form, simplifying all fractions.
2x+8y=24
Answer:
y = - [tex]\frac{1}{4}[/tex] x + 3
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c
Given
2x + 8y = 24 ( subtract 2x from both sides )
8y = - 2x + 24 ( divide all terms by 8 )
y = - [tex]\frac{1}{4}[/tex] x + 3 ← in slope- intercept form