-5x+2y=9
y=7x
I need help with in the next 10 minutes I will give brainiest!!!!!
Answer:
x = 1 and y = 7
Step-by-step explanation:
First, you substitute the y into the first equation
-5x+2(7x)=9
-5x+14x=9
9x=9
x=1
Then put the x into the equation to find y
This is if you substitute using the second equation
y=7(1)
y=7
Order all of the decimals
from least to greatest 0.34, 0.4, 0.98, 0.97, 0.46,
0.309
Answer:
.309
.34
.4
.46
.97
.98
Step-by-step explanation:
Hope this helped. Do not be shy to give Brainlist.
Answer:
0.4, 0.309, 0.34, 0.46, 0.97, 0.98
Step-by-step explanation:
Draw a model to help solve 5/6 + 1/4. write ur answer as a mixed number.
The required simplified solution of the given expression in the form of a mixed number is 1 1/12.
Given that,
To determine the solution of expression 5/6 + 1/4. in the form of a mixed number.
The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
here,
= 5 / 6 + 1 / 4
= [ 5×4 + 1×6 ] / [6×4]
= 26 / 24
= 13 / 12
= 1 + 1 /12 or 1 1/12
Thus, the required simplified solution of the given expression in the form of a mixed number is 1 1/12.
Learn more about simplification here:
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What is 10.3% of 100?
Answer:
it is 10.3
Step-by-step explanation:
PLEASE HELP FAST ILL GIVE BRAINLIEST
Answer:
x=12
Step-by-step explanation:
have a good day!
An equilateral triangle with side lengths of 7 units is translated 3 units to the right. What is the length of one side of the triangle after the translation, in units? 3 units
Answer:
[tex]Sides= 7\ units[/tex]
Step-by-step explanation:
Given
[tex]Sides= 7\ units[/tex]
[tex]Translation = 3\ units[/tex] (to the right)
Required
Determine the length of one side after translation
It should be noted that when a shape, line, object is being translated by shifting its position, only the position of the shape, line or object changes not its length
This implies that, the length of the sides of the equilateral triangle remain unchanged.
Hence:
[tex]Sides= 7\ units[/tex]
help ajajsjsnsnsjsjs
Answer:
20mm, 1mm, 20mm
Step-by-step explanation:
(n+8)+(n−12) =
what is the answer
Answer:
2n-4
Step-by-step explanation:
The value of n for the given condition is 2(n - 2).
What is simplification?To simplify means to make anything easier. In mathematics, simplifying an equation, fraction, or problem means taking it and making it simpler. Calculations and problem-solving techniques simplify the issue. By eliminating all common factors from the numerator and denominator and putting the fraction in its simplest/lowest form, we can simplify fractions.
Given equation
(n + 8) + (n − 12) =
n + 8 + n - 12
solving constant separately and variables separately,
2n - 4
the common factor of 2 and 4 is 2
2(n - 2)
Hence the simplified form of an equation is 2(n - 2).
Learn more about simplification;
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what is -5 5/8 + 3 1/2
Answer:
Exact Form: -17/8
Decimal Form: -2.125
Mixed Number Form: -2 1/8
Step-by-step explanation:
Split 18 into the ratio 1:2
Answer:
6 : 12
Step-by-step explanation:
sum the parts of the ratio, 1 + 2 = 3 parts
Divide by 3 to find the value of one part of the ratio
18 ÷ 3 = 6 ← value of 1 part of the ratio, thus
2 parts = 2 × 6 = 12
1 : 2 = 6 : 12
The number 18 splitted into a ratio of 1 : 2 is 12 and 6.
What are ratio and proportion?A ratio is a comparison between two similar quantities in simplest form.
Proportions are of two types one is the direct proportion in which if one quantity is increased by a constant k the other quantity will also be increased by the same constant k and vice versa.
In the case of inverse proportion if one quantity is increased by a constant k the quantity will decrease by the same constant k and vice versa.
Slitting in the ratio 1 : 2 can be done in this manner,
{1/(1+2)]×18.
= (1/3)×18.
= 6.
And,
{2/(1+2)]×18.
(2/3)×18.
= 12.
learn more about proportion here :
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Find the equation of the straight line
that passes through (5, 6) and (5, −6).
9514 1404 393
Answer:
x = 5
Step-by-step explanation:
These points have the same x-coordinate, so are on the same vertical line:
x = 5
please actually look at the picture and do it correctly i need the correct answers i'll mark brainliest if you are correct
Answer:
12/14 to 18/w
Step-by-step explanation:
the w would equal 21 (incase you needed it) since the unit rate is 1.5
Answer:
w = 20
Step-by-step explanation:
Math question
Any complex fraction can be written as a ratio
True or False
Will give brainiest to first person to answer right
Answer:
I believe the answer is true, please let me know if I am wrong.
Mitchell swims several times per week in a lake near his home. Last summer, the average water temperature was 20 degrees Celsius. This summer, the average water temperature was 21 degrees Celsius. What was the percent of increase in the temperature?
Answer:
5% increase
Step-by-step explanation:
last Summer was 20° , this Summer is 21° so is 1° more so the question is what is the increase 1° of 20
20° is to 100% as
1° is to ?%
cross multiply
?% *20 =1*100
divide by 20 both sides
?%= 100/20 = 5
Consider the equation 5x^2-10x+c=0. What values of c result in the equation having a complex solutions? Represent your answer on the number line
Answer:
When we have a quadratic equation:
a*x^2 + b*x + c = 0
There is something called the determinant, and this is:
D = b^2 - 4*a*c
If D < 0, then the we will have complex solutions.
In our case, we have
5*x^2 - 10*x + c = 0
Then the determinant is:
D = (-10)^2 - 4*5*c = 100 - 4*5*c
And we want this to be smaller than zero, then let's find the value of c such that the determinant is exactly zero:
D = 0 = 100 - 4*5*c
4*5*c = 100
20*c = 100
c = 100/20 = 5
As c is multiplicating the negative term in the equation, if c increases, then we will have that D < 0.
This means that c must be larger than 5 if we want to have complex solutions,
c > 5.
I can not represent this in your number line, but this would be represented with a white dot in the five, that extends infinitely to the right, something like the image below:
The first four terms of a sequence are 16, 22, 28, 34, …
Which expression can be used to find the nth term of the sequence?
A) 6 + 10n
B)6 + 10(n - 1)
C)10 + 6(n - 1)
D)10 + 6n
Answer:
A.)
Step-by-step explanation:
I feel like it's A.) because the number sequence above continues to go on due to addition of 6 to each number. And now you are adding 6 to 10n because as stated before your supposed to add 6 to each number to get the answer in the sequence.
Hopefully I helped God bless !
Dan deposited $700 in a savings account. At the end of 3 year, he had earned $115.50 in simple interest. What interest rate did he receive?
Answer:
17
Step-by-step explanation:
but not for sure
The figures are similar. Find the missing length.Round to the nearest thousandth
Answer:
The missing x = 0.675 m
Step-by-step explanation:
In similar triangles, the corresponding sides are proportion (means their ratios are equal)
In the given figure
∵ The two triangles are similar
∴ Their corresponding sides are proportion
∵ The sides of lengths 1.8 m and x are corresponding sides
∵ The sides of lengths 8.0 m and 3.0 are corresponding sides
∴ [tex]\frac{1.8}{x}[/tex] = [tex]\frac{8.0}{3.0}[/tex]
→ By using cross multiplication
∴ x × 8.0 = 1.8 × 3.0
∴ 8x = 5.4
→ Divide both sides by 8
∵ [tex]\frac{8x}{8}[/tex] = [tex]\frac{5.4}{8}[/tex]
∴ x = 0.675
→ No rounding because there is no digit after the thousandth digit
∴ x = 0.675 m
The ratio table below shows the conversion between centigrams and milligrams. How many centigrams would be equal to 0.3 milligram?
Answer:
.03
Step-by-step explanation: because milligrams is 10 times as much as centimeters so if thereś .3 milligrams then you divide .3 by 10 and youĺl get .03
Lila hired a chainsaw for a week.
Using the information below, work out how much Lila paid for the chainsaw.
Hire Fees
Monday to Friday - $37 a day
Saturday and Sunday - $42 a day
Answer:
296
Step-by-step explanation:
There are 5 days where the fee was $37 and 2 days where the fee was $42
so simply multiply the given values by the number of days used.
(37*5)+(42*2)
185+84
296
The equation of line CD is y = -2x - 2. Write an equation of a line parallel to line CD in slope-intercept form that contains point (4, 5).
y = -2x + 13
y=zx+7
y=x+3
y = -2x - 3
Answer:
y = -2x + 13
Step-by-step explanation:
How much money must be deposited to earn $219 in simple interest in 8 years at an annual rate of 6.2%?
Answer: $1,147.20.
Step-by-step explanation:
The total amount accrued for principal plus interest in the calculation simple interest
= principal * (1+ rate * number of years)
= $800 *(1+ 6.2% * 7)
= $1,147.20.
Hopefully his helped, if not HMU and I will try my best to get u a better answer! :)
If Nike is having a 30% off sale, and you want a pair of Jordan's that originally cost $100, what is the sale price?
Answer:
70 or 80
Step-by-step explanation:
Alan spent $68 on fruit at the grocery store. He spent a total of $80 at the store. What percentage of the total did he spend on fruit?
please help me fast
I give you 100 point
Answer:
a. 372
b. 708
c. 451
d. 805
e. 965
f. 620
Step-by-step explanation:
Which translation takes y = | x + 2 | - 1 to y = | x | + 2 ?
Select one:
a. 2 units left, 3 units down
b. 2 units left, 3 units up
c. 2 units right, 3 units up
d. 2 units right, 3 units down
(Solve by graphing and determining the translation. Thanks in advance!)
Answer:
C
Step-by-step explanation:
y = | x + 2 | − 1 has a vertex at (-2, -1).
y = | x | + 2 has a vertex at (0, 2).
So the graph is translated 2 units right and 3 units up.
Scott swims several times per week in a lake near his home. Last summer, the lakes water temperature was 20 Celsius this year the average water temperature was 20% warmer what was the average temperature of the lakes this summer. Solve it step by step please
Answer:
ggggg
Step-by-step explanation:
gfv
Please give me the answer to 4 and 5 I’ll give Brainly
5 is d and idk question 5 sorry
2/5[22+(-4 5/8)-(-7)]
PLEASE HELPP
Hope this helps!
Also can I please have Brainliest??
Only if I'm right of course
Jasmine makes balloon animals at community events. In 240 minutes, she uses 144 balloons to make 48 animals. How many balloons are used for each animal?
Answer:
he uses 23 balloons for every 28 events.