Solve the system of equations by the addition method.
[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
Which measure of spread is the most appropriate for the data set represented by the graph?
A.
range
B.
quartiles
C.
interquartile range
D.
mean absolute deviation
it is not D.
E.
either range or interquartile range
Answer:
B
Step-by-step explanation:
becasue the guy above is correct
GIVING BRAINLIEST!! FAST-
Answer:
c'estla A
Step-by-step explanation:
Hi, I need some help with the last question of the first problem and the answer to the second page.
Answer:
46.9 for the first one
Step-by-step explanation:
So sorry if i'm wrong <3
HELP ME PLZ!!! THIS IS DUE IN 15 MINUTES! NO LINKS!!![tex]n * e * v \frac{er^g^o}{nna} - g - i + v * e^y^-^o + u - u^p = 250[/tex]
Answer:
nice
Step-by-step explanation:
never gonna let you down
Mrs. Hussen has two similar recycling bins in her office. The dimensions of the smaller bin can be found by dilating the dimensions of the larger bin by a scale factor of 0.75.
Answer:
7.5 and 10.5
Step-by-step explanation:
You can use this equation
1/4 of 14 and 1/4 of 10
Those two are your answers
8.067 ; hundredths Round each decimal to the place indicated.
Answer:
8.06
Step-by-step explanation:
Decimals go in the order 10ths hundredths thousandths ten thousandths and so on. In rounding any decimal, one number gets added to the left if the number is 5 or over and the number is discarded if it is lower than 5.
for example if the number was 1.2345 5 would make 4 5 1.235 then 5woould make 3 4 1.24 but if you want to round to a smaller number the other numbers would not go up the numbers would just be discarded.
GIVING BRAINLIEST :3
Answer: B
Step-by-step explanation:
Your final bill is $51.28. This includes a 12% tip. What was the bill without tip?
Answer:
$45.13
Step-by-step explanation:
what is 12% of 51.28 change 12% to a decimal by moving two spaces to left =0.12. multiple by 51.28= 6.15 that is the amount of the tip then subtract it from 51.28-6.15= $45.13 original amount before the tip.
What is 110% of 160?
The first person to answer gets Brainliest
Answer:
176 Basically find whats 10% of 160 and then add that to 160 and there is your answer
eeeeeeee help!!!1!1!11
Answer:
no because order of operations requires division to be done before addition, she should divide 18252 by n then add
Step-by-step explanation:
The table below shows the transportation method of employees at a certain company. What percent of employees walk to work ?
PLS PLS SHOW HOW U SET UP THE PROBLEM DONT JUST GIVE THE ANSWER WITHOUT SHOWING THE WORK ITS DUE IN A FEW HOURSS PLS
What is the measure of the exterior angle? Show all steps.
Answer:
108 degrees
Step-by-step explanation:
The thereom for this is the interior angles (a+10) and 44 degrees add up equaling to 2a. This works for any triangle like this. So, a+10+44=2a, and we solve for a to 54 for a. Then we insert a as 54 for 2a to get 54*2=108 degrees.
Jordan bikes at a speed of 8 2/3 mph. How many miles will he bike in 2/3 of an hour?
Answer:
26.87 miles
Step-by-step explanation:
Answer: 5 7/9
Step-by-step explanation:
HELP MEEEEEE PLEASE<3
In 1 7/8 days, a construction crew built 2 3/4
miles of road.
What is the unit rate in miles per day?
Answer:
3 3/5 miles
Step-by-step explanation:
6 3/4 divided by 1 7/8=
3 3/5
Pleasee help asap please help
Answer:
q6 : b=-22
Q7.60×4=3h. 240=3h. 80=3h
A pet store is having a pet fish sale. Lauren bought b balas and c catfish. Write an algebraic expression to represent the total cost of the fish. Use the chart to answer the question.
Write an equation for the constant of proportionality.
Answer:
they r all multiple by 3
Step-by-step explanation:
2×3=6
4×3=12
6×3=18
8×3=24
10×3=30
Answer:
Step-by-step explanation:
as hotdogs (x) increase by 2 the cost (y) increases by 6
6/2 = 3/1 = 3
y = 3x
the diagrams for my last question I can'put the other one just lmk if these 2 r it
I can't see the whole question. Can you plz make a whole question so I can answer it plz?
plz give me brainliest. I need a lot of those.
Write the standard form of the number shown.
two hundred thirty million, three hundred forty-four thousand, nine hundred ninety-six
Answer:
230,344,996 is my answer. Hope this could help you!
Marielle is cutting equal-sized strips of ribbon for her scrapbook. She has 59 inches of ribbon. if she cuts 8 equal-sized pieces of ribbon, how long will each piece of ribbon be?
Answer:
7 .375
Step-by-step explanation:
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?
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
Two quantities are related, as shown in the table:
x y
2 3
4 4
6 5
8 6
Which equation best represents the relationship?
1. y = 1/2x + 2
2. y = 1/2x + 1
3. y = x + 2
4. y = 2x + 1
Answer:
It's the 4th one
Step-by-step explanation:
.................................
Two teams working together can finish a job in 8 days. if the first team works alone for two days and the second team works alone for 5 days, 5/8 of the total work still remains. How many days will it take each team to finish the work alone?
x is the days that the first team finishes the work alone (x>8)
y --------------------------second-----------------------------------------(y>8)
In a day:
The first team finishes 1/x (the work) The second team finishes 1/y (the work) Two teams working together finish 1/8 (the work)⇒ [tex]\frac{1}{x}+ \frac{1}{y} =\frac{1}{8}[/tex] (1)
If the first team works alone for two days and the second team works alone for 5 days, 5/8 of the total work still remains:
⇒ [tex]\frac{2}{x}+\frac{5}{y}=\frac{3}{8}[/tex] (2)
(1),(2) ⇒ [tex]\left \{ {{\frac{1}{x}+ \frac{1}{y} =\frac{1}{8}} \atop {\frac{2}{x}+\frac{5}{y}=\frac{3}{8}}} \right. <=>\left \{ {{x=16} \atop {y=24}} \right.[/tex]
It'll take the first team 16 days and the second team 24 days to finish the work alone
ok done. Thank to me :>
SOLVE FOR P
(1) 4 x p x .5= 12
(2) 0.03 x p x 18= 2.7
Answer:
1-24 (I dont know about 2)
Step-by-step explanation:
0.5 x 24 = 12
What is the perimeter of a rectangle with a length of 48 inches and a width of 16 inches?
A. 64 in.
B. 128 in.
C. 336 in.
D. 768 in.
Answer:
B. 128 in.
Step-by-step explanation:
P= 2 (l + w) = 2 · (48 + 16) = 128in
10 points. Thank you :)
Answer:
I believe it's A
Step-by-step explanation:
Answer:
i think C. 10(5x-3) is answer
PLS I NEED HELP ASAP
Answer:
(-13.5, 4.5)
Step-by-step explanation:
Can You Solve This?
(if you can't see what it says the question is: "Using given algebra tiles, write an expression that is equivalent to the quantity represented in the model below" )
Answer: move the icons thing to the box in your choice I think
During a period of extreme cold, the average daily temperature dropped decreased by 112°F day. How many days did it take for the temperature to decrease by 9°F? Which equation would you use to find the solution?
A x + 112 = 9x + 112 = 9
B x − 112 =−9x − 112 =−9
C −112x = −9−112x = −9
D 112x = 9
It takes about 4 days for the temperature to decrease by 9°F.
An equation is an expression that shows the relationship between two or more variables or numbers.
Let x represent the number of days. Given that the temperature drop decreased by 1 1/2°F each day (- 1 1/2), for it to decrease by 9°F (-9):
-1 1/2 * x = -9
-1.5x = - 9
x = 4 days
It takes about 4 days for the temperature to decrease by 9°F.