Answer:
yes
Step-by-step explanation:
solve the system using substitution.
2x + 2y = 30
y - 4x = 0
( _ , _ )
Answer:
x = 3
y= 12
Step-by-step explanation:
2x + 2y = 30
y - 4x = 0 /*2
2x + 2y = 30
2y - 8x = 0
-----------------
10x = 30
x = 3
y= 12
Answer:
( 3 , 12 )
Step-by-step explanation:
2x + 2y = 30 and y - 4x = 0 are two given equation
Name The equation
2x + 2y = 30 ...(1)
y - 4x = 0
y = 4x ...(2)
Now, Put the value of y in equation 1
2x + 2y = 30
2x + 2(4x) = 30
2x + 8x = 30
10x = 30
x = 30/10
x = 3
Now,
Put the value of x in equation 2
y = 4x
y = 4(3)
y = 12
Thus, The value of x is 3 and the value of y is 12
FOR VERIFICATION ONLY:-2x + 2y = 30 ...(1)
2(3) + 2(12) = 30
6 + 24 = 30
30 = 30
y = 4x ...(2)
12 = 4(3)
12 = 12
Hence, L.H.S = R.H.S
-TheUnknownScientist
PLEASE ANSWER !!!!!!!!!!!
Answer:
1 1/16
explanation:
its 1/16 of a pound because its half a serving and a serving is 1/8 of a pound
6th grade math i mark as brainliest
Answer:
9. 30/6
10. 7.6 and u
Step-by-step explanation:
Which graph represents the function below? (The first pic is the function, the others are the graph choices given)
Answer:
The First Graph
Step-by-step explanation:
The -x line is present in both the first and last graph.
The x + 6 is present in the first and second graph.
The slope is increasing before -3
The slope past -3 is decreasing.
Gavin bakes 70 cookies in an hour.How many cookies can he bake in 4hours
Answer: 280 cookies
Step-by-step explanation:
How many terms are in this expression?
3n + 5
Answer:
2
Step-by-step explanation:
3n = term
5 = term
Answer:
two
Step-by-step explanation:
3n and 5 are both terms
a company dyes two sizes of rugs a small rug requires 8 hours for dyeing and a medium-sized rug requires 12 hours of dyeing the dryers have to make at least 22 guys ansld that must do it in less than 240 hours let x equal small rugs abd u equal medium rugs state a possible ordered pair solution for the system of inequalities justify mathematically using both inequalities
Answer:
C says 8x+12y, but D says 12x+8y, instead of 8x and 12y. The correct answer is C, I guess
Step-by-step explanation:
Let x=small rugs and y=medium rugs. It takes 8 hours to dye a small rug, so you would write 8x. It takes 12 hours to dye a small rug, so you would write 12y. Those two would need to be added together. The dyer needs to dye at least 22 rugs in 240 hours, so you would need a less than or = to sign.
I'm not sure which choice has the line beneath, indicating that the sign is a "less than or equal to" sign, but the answer is gonna be either C or D.
8x+12y≤240, or 12y+8x≤240
What is the answer for this
Answer:
the product of 5 and a number
Step-by-step explanation:
product is the result of a multiplication problem
5c is the same as 5 times c
we don’t write an x (5xc) because x is sometimes used as a “placeholder” instead of c
3. Which is an estimate of the square root of 15 to the nearest tent
3.9
1.5
3.8
4.1
Answer:
1.5
Step-by-step explanation:
What triangle is this ??? PLEASEE helpppp !!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!!!
Answer:
isoscoles right
Step-by-step explanation:
Billy's Bagels sells bagels and sandwiches. The profit on every bagel is $2 and the profit on every sandwich is $3. Billy made a profit of $1,560 last week.
a. Write an equation in a standard form that represents Billy's profits last week, where x is the number of bagels sold and y is the number of sandwiches sold.
b. Change the equation for Billy's profit to slope-intercept form.
c. Write the equation in function notation. HELP!!
Answer:
a. 2x + 3y = 1560
b. y = -2x/3 + 520
c. f(x) = -2x/3 + 520
Step-by-step explanation:
a. We are told that the profit on each Bagel is $2 for x bagels and $3 for each sandwich is $3
for a total of y sandwiches
So we have;
2x + 3y = 1560
b. Slope intercept form is generally
y = mx + b
So we have
3y = -2x + 1560
y = -2x/3 + 520
c. In function notation;
f(x) = -2x/3 + 520
What is true about the slope of two equations that have no solution?
Answer:
slopes are equal
Step-by-step explanation:
If the 2 equations have no solution then the lines are parallel and never intersect.
Parallel lines have equal slopes.
Answer:
according to our rules ,we can find the formula for the slope by talking the first derivative
PLEASE HELP Tony received a $45.25 gift card for a photo center. He used it to buy prints that cost 5 cents each. The remaining balance, B in dollars), on the card after buying x prints is given by the following function. B (x)=45.25 -0.05x What is the remaining balance on the card if Tony bought 50 prints?
Answer:You have too add $45.25 by 5 and divided the answer you got from adding the $45.25
Step-by-step explanation:
Hope this helps!
The conjugate is used in _____ of complex numbers.
A. quadratic
B. all
C. division
D. either
If f(x)=-x^2– 7x – 22, find f(-5).
A. -82
B. -32
C. -12
D. 12
E. 38
Answer:
E. 38
Step-by-step explanation:
f(-5) means to plug in -5 for x in the given equation
[tex]f(-5)=(-5)^2-7(-5)-22=25+35-22=38[/tex]
It took Sharon 1 hour and 45 minutes to pick 3 1/2 pounds of raspberries. At what unit rate did Sharon pick raspberries?
A. 1/2 pound per hour
B. 1 3/4 pounds per hour
C. 2 pounds per hour
D. 2 1/4 pounds per hour
Answer:2 pounds per hour
Step-by-step explanation:
I just did it
Answer:
2 pounds per hour
Step-by-step explanation:
[x]/[6]=-46 , what is x
Answer:
Step-by-step explanation:
x/6 = - 46
Multiply by 6 on both sides
x = - 46 x 6
x = - 276
Answer:
x= -276
Step-by-step explanation:
x/6=-46
x= -46(6)
x= -276
i think... :)
In the number 3,591,367 what does the 9 represent
What is the significance of the number 9?
Number 9 is perceived as a symbol of love and faith, but it can also symbolize karma and the spiritual laws of the universe. Receiving this number means that your life purpose may be helping other people and doing something good for others.
Answer
The nine is in the ten thousands place so it represents 90 thousand
Step-by-step explanation:
HELP I WILL MARK BRAINLIESTTT!!!
Answer:
D
Step-by-step explanation:
I know this stuff
+
Write the polynomial "5a2+3a²+a+1” in standard form (from greatest power to
lowest):
Answer:
8a2+a+ 1
Step-by-step explanation:
just so I know the 5a2 is 5a square r?
Helppppppp i have no idea never learned this i will give big brain
Answer:
i dunno about other people but the formula I learned needs the question to give you the radius.
Step-by-step explanation:
ACP=(mAB/360)(2 pi r)
=(74/360)(6.28 r)
=1.29r
Answer:ACP=(mAB/360)(2 pi r)
=(74/360)(6.28 r)
=1.29r
Step-by-step explanation:
is this set of ordered pairs of a function?
(1,1) (2,3) (3,4) (4,2) (5,1)
Answerrrr????????????,?????????
Answer:
B [-11] = 11, therefore Peter is at a distance of 11 feet.
Step-by-step explanation:
Absolute value always is written equal to a positive number because of the [] and distance is always written positive. Never negative.
Hope it helped! My answer is expert verified.
Answer:
B. it's B
Step-by-step explanation:
nice day to you lol
Which unit is bigger?
millimeter
centimeter
meter
kilometer
Answer:
The answer is kilogram
Step-by-step explanation:
The answer is a kilogram because a kilogram is 1,000 times larger than one gram (so 1 kilogram = 1,000 grams). A centimeter is 100 times smaller than one meter (so 1 meter = 100 centimeters). A dekaliter is 10 times larger than one liter (so 1 dekaliter = 10 liters).
Hope this helps!!
the mean of 30 numbers is 150.it was detected on rechecking that one value of 165 was wrongly copied as 135.find the correct mean
Answer:
151
Step-by-step explanation:
m=150cm
n=30
new mean =(m*n+165-135)/n
=(150*30+165-135)/30
=(4500+30)/30
=4530/30
=453/3
=151
therefore
correct mean =151
Hope this helps :D
Question 18
1 pts
If JKLM is an isosceles trapezoid, solve for x.
(8x – 23)
(6x + 11)°
M
L
HELPPP
Answer:
Step-by-step explanation:
J and K are equal
8x - 23 = 6x + 11 Add 23 to both sides
8x = 6x + 11 + 23 Combine the right
8x = 6x + 34 Subtract 6x from both sides
8x - 6x = 34 Combine the left
2x = 34 Divide by 2
x = 34/2
x = 17
=================================
M and L are both supplementary to J and K respectively.
J = 8x - 23
J = 8*17 - 23
J = 136-23
J = 113
K = 113
===================================
M + 113 = 180
M = 180 - 113
M = 67
L = 67
HELP I WILL GIVE BRAINLIEST
What steps would you follow to graph the inequality statement?
-4 < -w
place an open circle on 4 and shade to the left
place a closed circle on 4 and shade to the right
place an open circle on -4 and shade to the left
place a closed circle on -4 and shade to the right
Answer: D
Step-by-step explanation:
-4 < -w
w > -4
Since it doesn't have an equal sign, its an open circle. Since its greater than -4, it is going to the right, so shade right.
Answer is D
What number is 25% of 160? (worth lots of points because why not lol) help me-
Answer:
40
Step-by-step explanation:
This can be solved by changing the percentage to a decimal number, then multiplying by 160.
0.25×160=40
FG is the geometric mean of which two segments
Answer:
EG and GH
Step-by-step explanation:
FG is the geometric mean of EG and GH segments.
FG is the geometric mean of EG and GH by using the Right triangle altitude theorem.
Important information:
The given figure of a triangle EFH.Right triangle altitude theorem:According to the Right triangle altitude theorem, if an altitude is drawn on the hypotenuse of a right triangle, then the altitude of a right triangle is the geometric mean of the two segments of the hypotenuse.
From the given figure it is clear that,
Triangle EFH is a right triangle because angle F is a right angle.FG is the altitude on the hypotenuse.Two segments of the hypotenuse are EG and GH.Using the Right triangle altitude theorem, we get FG is the geometric mean of EG and GH.
Find out more about 'Right triangle altitude theorem' here
https://brainly.com/question/14357999
-2.5f + 0.2f - 13 - 8
Answer:
2.3f - 21
Step-by-step explanation: