Find 3y+x if 2x-3y=12 and 8x+3y=14
Answers
Answer:
check the photos.
but if you substitute your x and y into the equation, your answer will be = -6/7
8x+3y=14 8x+3y=14
-15y=34
Related Questions
PLEASE HELP!!!
When thinking of things that “fall in the fall,” perhaps the first things that come to your mind are leaves? For many people around the country, the leaves are falling from their trees, and hours of raking are necessary. Joe decided that he would try to make some extra money by raking the leaves in his neighbors’ yards. Joe figured he would need approximately seven bags per yard in which to collect the leaves. The bags are sold 10 to a box, and Joe is planning on raking 14 yards. How many boxes of bags
must he buy?
Another thing that seems to “fall in the fall” is the temperature. Heather noticed that the high temperature on October 21st was 66 degrees, the high temperature on October 26th was 63 degrees and the high temperature on October 31st was 60 degrees. It appears that the high temperatures on every fifth day are forming an arithmetic sequence. If this sequence were to continue, on what date would the high temperature be 33 degrees?
A third thing that tends to “fall in the fall” is people’s amount of physical activity. It is believed that people generally gain weight in the colder months in large part due to this lack of physical activity. Lou decided to be proactive about this and promised himself he would exercise at least four days of every calendar week (or every Sunday through Saturday time period). If Lou never wants to skip exercising on consecutive days within a calendar week, and he exercises exactly four days out of the seven, how many
different workout schedules are possible for a calendar week?
Answers
Answer:
For one you would need 10 boxes of bags you would approximately need 98 bags.
for two The temp. would reach 33 degrees by December 15th.
for three.... I have no clue :/ If I figure it out I will get back to you
Step-by-step explanation:
1. 7 bags per yard, you have 14 yards so 14x7=98 which you should round to 100 bags which would be 10 boxes if each box has 10 bags
2. all I did was follow the pattern (using a 2021 calendar so I wouldn't mess up the days) went through months following the pattern every five days the temp. goes down by 3 degrees.
Joe would need to buy 10 boxes out of which 2 bags will be unused. The date on which temperature will be 33 degrees is 30th December. The schedule should be Monday, Wednesday, Friday, and Sunday.
1.
Given information:
Joe figured he would need approximately 7 bags per yard in which to collect the leaves.
The bags are sold 10 to a box, and Joe is planning on raking 14 yards.
The number of bags required to collect the leaves from 14 yards will be,
[tex]14\times7=98\rm\; bags[/tex]
So, the number of boxes required will be,
[tex]b=\dfrac{98}{10}\\b=9.8[/tex]
Since the number of boxes can't be a fraction. Joe would need to buy 10 boxes out of which 2 bags will be unused.
2.
Given information:
The high temperature on October 21st was 66 degrees, the high temperature on October 26th was 63 degrees and the high temperature on October 31st was 60 degrees.
The temperature on every fifth day forms an AP. SO, the AP will be 66, 63, 60, .....
It is required to find the date on which the temperature will be 33 degrees.
The place of term 33 in the AP will be,
[tex]a_n=a+(n-1)d\\33=66+(n-1)(-3)\\n-1=11\\n=12[/tex]
33 is placed in 12th position. So, after [tex]12\times5=60[/tex] days, the temperature will be 33 degrees.
Therefore, the date on which temperature will be 33 degrees is 30th December.
3.
Lou decided to be proactive about this and promised himself he would exercise at least four days of every calendar week.
Lou never wants to skip exercising on consecutive days within a calendar week.
He will work on consecutive days and four days a week. So, there is only one possibility to match the condition.
The schedule should be Monday, Wednesday, Friday, and Sunday.
For more details, refer to the link:
https://brainly.com/question/24873057
PLEASE READ AND PLS DONT REPORT BECAUSE THIS NEEDS TO BE NOTICED
Answers
Answer:
thats horrible why would some one want to do that like that person needs to get a life
Answer:
seems to be like all other men on here
Step-by-step explanation:
it's systems of linear equations btw
Answers
Look at the number line.
Which shows the numbers in order from greatest to least?
A. 2.25, , , –1.5,
B. , 2.25,, –1.5,
C. , –1.5, , , 2.25
D. 2.25, –1.5, , ,
BE SURE TO LOOK AT PHOTO
Answers
Answer:
A
Step-by-step explanation:
Greatest to least is right to left on this number line.
Answer:
The answer is A
Step-by-step explanation:
Positives are always greater than negative numbers
Which equation has a solution of s = 3/4?
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So i dont know what to do but it's systems of linear equations.
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Answer:
the wind is 23 km/h
the speed of the plane without the wind is 135 km/h
Step-by-step explanation:
158-112=46
46/2= 23
112+23= 135
8,869 divided by 3= and can yall help me with other question im gonna post
Answers
Answer:
2956.33333333
................................
Answer:
2956.33333333
Step-by-step explanation:
BRAINLIEST?
John had $26 to spend on eight paintbrushes for his art class. After buying them, John had $10 left. How much did each of the paintbrushes cost?
PLSS HELP ME
Answers
Answer:
Each paint brush cost 2 dollars
Step-by-step explanation:
all u do is subtract 10 from 26 witch leaves 16 so 16 divided by 8 is 2 and to check work divide 16 by 2 and u get 8
switch the colurrr-cxk
easy 10 points answer all 5 questions.
Answers
2. -5,-2,0,2,4
3. can’t help
4. -5.7, -2.4, 2, 3, 4.9
5. 5, 6, 2, 9
HELP ILL GIVE BRAINLY
Answers
Answer:
y=-115
Step-by-step explanation:
y/5+4=-19
y/5=-23
y=-115
Answer:
-19 - 4 = -23. y = 20
Step-by-step explanation:
Construct a scatterplot and identify the mathematical model that best fits the data. Assume that the model is to be used only for the scope of the given data and consider only linear, quadratic, logarithmic, exponential, and power models. Use a calculator or computer to obtain the regression equation of the model that best fits the data. You may need to fit several models and compare the values of R2.
y = 8.14x0.58
y = 7.04 + 2.36x
y = 0.01x2 + 2.19x + 7.53
y = 4.40 + 12.02 ln x
Answers
Answer: i think its y=8.14x0.58
Step-by-step explanation:
PLEASE HELP ME!!
Rewrite the phrase "two less than a number" as a variable expression. Explain how to evaluate it when n=5.
Answers
The way you worded it confused me but I assume this is what your talking about
how do you get 1/8 from 1/12
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1/12 x 12/8 = 1/8
1/12 : 8/12 = 1/8
There is many ways
Answer:
1/8 - 1/12 = 124 ≅ 0.04166667
Answer the question below
Answers
Answer:
I think its 5 & 7 maybe ?
Show work pls. I’m just confused a bit.
Answers
Answer:
$6.16
Step-by-step explanation:
$12.80*3/4=$9.60
$9.60+$12.80=$22.40
$9.28*3/4=$6.96
$6.96+$9.28=$16.24
$22.40-$16.24=$6.16
Hope this helps!
1/4•3= 9.60
12.80+9.60=22.40
9.28/4=2.32
2.32•3=6.96
9.28+6.96=16.24
22.40-6.96=15.44
finely's pumpkin had a mass of 6.5 kilograms (kg) before he carved it after carving it the pumpkin has a mass of 3.9 kg what was the percent decrease of the pumpkin
Answers
Answer:
There was a 40% decrease in mass of the pumpkin.
Step-by-step explanation:
Answer:
The percent decrease was 40%
The percent change was -40%
Step-by-step explanation:
The decrease in mass was (6.5 - 3.9) kg, or 2.6 kg.
The percentage decrease was therefore
2.6 kg
------------ * 100%, or 40%
6.5 kg
help me i will give you 18 points of you answer this one
Answers
Answer:
(4,1)
Step-by-step explanation:
y=4
x=1
this is not my cup of tea but I'm pretty sure this is the answer
Answer:
4
Step-by-step explanation:
Do this the same way as the last time you had this type of problem.
The indicated point is (1, 4)
constant of proportionality
y/k = 4/1
y/x = 4
Rewrite the phrase "two less than a number" as a variable expression. Explain how to evaluate it when n=5.
Answers
Answer:
n-2
Step-by-step explanation:
n=5 so the new equation is 5-2=3
Ill give brainiest to, whom ever gets this correct.
Answers
Answer:
50.2 m^2
Step-by-step explanation:
The Area of a circle is given by the equation pi(r)^2
Therefore if r = 4 we can plug it into the equation to get:
pi (4)^2= pi(16)= 50.2655 or about 50.2 m^2Does the movement of air masses make weather prediction harder or better?
Here is some text 2 help u with the question:
The reason is they must take into account several large-scale phenomena. Each unique phenomena is governed by multiple variables and factors. For example, supercomputers must consider how the sun will heat the Earth's surface and how air pressure differences will form winds. They consider how water-changing phases (from ice to water or water to vapor) will affect the flow of energy. They even have to try to calculate the effects of the planet's rotation in space. This rotation moves the Earth's surface beneath the atmosphere. Small changes in any one variable in any one of these complex calculations can profoundly affect future weather.
Answers
Answer:
I am confused. Can u explain it to me please?
Step-by-step explanation:
Ill give brainiest to whom ever gets this correct.
Answers
Answer:
50.2
Step-by-step explanation:
Area=π×r2 =π×(4 cm)2 =16π)cm2≈50.24 cm
Answer:
A. 12.6 meters squared.
Step-by-step explanation:
(w^2/x−3)÷10⋅z when w=−9, x = 2.7, and z=−2/5
Answers
Answer:
-40/3
Step-by-step explanation:
rewrite the equation as -
(-9)/2.7) 10x2/5 > -9/27x2x2
-9/27/10x2x2
-10/3x2x2
= -40/3
Helppppppp plsssssssss meeeeeee so harddddddd
Answers
Answer:
incorrect
Step-by-step explanation:
this is because it would be 1/2 and 1/6. you would have to multiply the bases for a probability of 1/12
Hope it helps you!!!
Answer
Yes
Step-by-step explanation:
In algebra, if there is an unknown value that needs to be represented, typically you have to use x,y,z,a,b,c. etc.
I hope this helped
What would you divide the numerator and denominator by to put 16/24 in simplest form?
Answers
Answer:
8
Step-by-step explanation:
if you divide the numerator by 8 you get 2 and divide the denominator by 8 and you get 3
the simplest form would be 2/3 which was divided by 8
Answer:
Divide both numerator and denominator by 8.
Step-by-step explanation:
Firstly, find the greatest common factor (GCF) of both values.
16: 1, 2, 4, 8, 16
24: 1, 2, 3, 4, 6, 8, 12, 24
The GCF of both values is 8.
Now divide, [tex]\frac{16}{24}[/tex] ÷ [tex]\frac{8}{8}[/tex] to get the final value of [tex]\frac{2}{3}[/tex].
Simplest value is 2/3.
An artist builds a sculpture out of metal and wood that weighs 14.9 kilograms. ¾ of this weight is metal, and the rest is wood.
How much does the wood part of the sculpture weigh?
Answers
Answer:
I think you would have to convert 14.9 kg to fraction and multiply by 3/4
Answer:
convert 14.9 kg to fraction and multiply by 3/4
Step-by-step explanation:
:P
Omg please help I cannot rn
I did 26 in class, the rest I just can’t
Will reward brainliest for best and complete answer PLEASE!!!!
Answers
Answer:
17) 1/2b^4
18) x^4/y^2
19) y^3/2x^4
20) 1/9m^2
21) 1/2r
22) 1/4x^5
23) n
24) ½
25) 3/m^7
27) z^3/xy^2
28) 2h^3 k^3/3j^4
29) 4m^2 n/3p
30) 3x^7/yz
Step-by-step explanation:
I need help ill give brainliest (Only if answer is correct)
8,121 ÷ 8 =
R
Answers
Answer:
1015.125
............................
Answer: 1015.125
Step-by-step explanation:
can someone pls help me with this i cqnt do it right and ive been trying for 1 hour and 35 min HELPPP MEEEE!!
Answers
The answer is 19 and the remainder is 1
Answer: 19.25
Step-by-step explanation:
the answer is in the attachmentin real life how is slope-intercept form used
Answers
Real-life applications of slope inculde roofs, roads, handicap ramps, funiculars, cable cars, mountains for skiing, downhill cycling, and snowboarding/dirtboarding, roller coasters, skate ramps, and BMX jumps.
6x + 50 = 62
What is x?
Answers
6x + 50 = 62
6x = 62 - 50
6x = 12
x = 12/6
x = 2
_____
Hope it helps ⚜