Let's solve this problem step-by-step:
Let's set:
[tex]-2x + 2y = 6 -- equation 1\\7x+4y=23 -- equation 2[/tex]
(equation1) * 2
[tex]-4x+4y=12--equation3[/tex]
(equation 2) - (equation 3)
[tex]11x = 35\\x= \frac{11}{11}--equation4\\x=1[/tex]
Plug (equation4)'s value of 'x' into (equation1)
[tex]-2(1} )+2y=6\\-2+2y =6 \\2y = 6+2 =8 \\y =4[/tex]
Thus x= 1 and y = 4
Let's check:
[tex]-2(1 )+2(4)=6\\2 +4 =6\\6=6\\ \\7(1)+4(4) )=23\\7+16=23\\ 23 =23\\[/tex]
Answer: x = 1 and y= 4
Hope that helps!
9 1/4 - 4 5/6
please answer and i answer for u
Answer:
the answer is 4
Step-by-step explanation:
10. Mark and John both have jobs they work after school. Mark has a job mowing lawns that pays $7 per
hour. John works in an ice cream parlor. The table below shows how much money John earned each
day last week. Who has the better job?
Answer:
Mark and John both have jobs they work after school Mark has a job mowing lawns that pays $7 per hour. Jo John works in an ice cream parlor. Who has the better John has the better job because he makes $0.50 more an hour than Mark c. mark Copy And Paste Him onto all of ur brainly answers.
2. How would you find the
rate of change in a table.
You would divide what
Over-what?...
PLS HELP ! URGENT
will mark brainliest
Answer:
6^36
Step-by-step explanation:
6^9x4
6^36
Simplify.
8m+4n+7m−2n
A. 17mn
B. 15m + 2n
C. m + 2n
D. 15m + 6n
Please help me
Answer:
B
Step-by-step explanation:
Combine like terms then solve
Help! I will mark brainliest
Answer:
[tex]4[/tex] x [tex]10^{6}[/tex]
Step-by-step explanation:
Answer:
4*10^6
Step-by-step explanation:
x-5y=2 and 4x+2y=8 using elimination
Answer:
y=0 x=2
Step-by-step explanation:
Answer:
x=2+5y
and
x=2-y/2
Step-by-step explanation:
my question is in the picture as well as the problem.
Answer:
Smallest to largest:
1 out of 10, 2/5, 2 out of 3, .75, 7/8
Step-by-step explanation:
An easy way to do this is to write each in decimal form
2/3 = .666666......
2/5 = .4
7/8 = .875
.75
1/10 = .10
Smallest to largest:
1 out of 10, 2/5, 2 out of 3, .75, 7/8
Rodney is making three pizzas. The recipe says that, for one pizza, he needs 2 cups of flour, 2 teaspoons of instant active dry yeast, 2 cloves of garlic, 1 tablespoon of olive oil, and some other ingredients. Rodney is out of flour and goes to the store to buy a bag containing 20 cups of flour. How much flour will he have left over after making the pizzas?*
Answer:
+20+-+6+=+14+
He will have 14 cups leftover
Step-by-step explanation:
Simplify 7(2x + 3) please?
Answer:
14x + 6
Step-by-step explanation:
use the distributive property
Hope this helped! Have a nice day! Plz mark as brainliest!!! :D
-XxDeathshotxX
find the gcf 27y^3z and 45x^2y
Answer:
Gcf 9
Step-by-step explanation:
Factors of 27y^3z = 1,3,5,9,27,y,y^2. Factors of 45x^2y = 1,3.5,9,15,45,x,y. CF = 1,3,5,9,y. GCF = 9.
Resuelve el siguiente polinomio aritmético: 200 – (74 + (720/9) + 44 + 16 x (4 + 6 – 8 x 2) - (42/2) + 70) – 2
Answer:
47
Step-by-step explanation:
PEMDAS - Parenthesis, Exponential, Multiplication, Addition, Subtraction
200 – (74 + (720/9) + 44 + 16 x (4 + 6 – 8 x 2) - (42/2) + 70) – 2
200 – (74 + 80 + 44 + 16 x (-6) - 21 + 70) – 2
200 – (74 + 80 + 44 - 96 - 21 + 70) – 2
200 – 151 – 2
47
AWARDING BRAINIEST
Find the measures of the complement and the supplement of an angle with measure 50°.
A. complement, 130°; supplement, 40°
B. complement, 40°; supplement, 130°
C. complement, 140°; supplement, 230°
D. complement, 230°; supplement, 140°
Monica deposits $100 into a savings account that pays a simple interest rate of 3.8%. Paul
deposits $200 into a savings account that pays a simple interest rate of 2.5%. Monica says that
she will earn more interest in 1 year because her interest rate is higher. Is she correct? Justify your
response
Answer:
Paul
Step-by-step explanation:
Paul earn more than monica. Though he is getting less interest but because of his higher initial amount he is getting more return.
Computing the return of both
Monica return is 100*3.4%= $3.4 in a year
Paul return is 200*%2.2= $4.4 in a year.
Answer:
3.3
multiply all the number in pairs then you have to add both number 3.3
An outlier is a data value that differs greatly from other
values in a data set.
Complete the statements about the outlier rule.
If any values in the data set are
the upper boundary, then
those values are upper outliers.
If any values in the data set are
the lower boundary, then
those values are lower outliers.
Answers:
Box 1: Greater thanBox 2: Less thanSo,
If any values in the data set are greater than the upper boundary, then those values are upper outliers.If any values in the data set are less than the lower boundary, then those values are lower outliers.The general rule is that the upper boundary is found computing Q3+1.5*IQR, where IQR is the interquartile range. Recall that IQR = Q3-Q1. The Q1 and Q3 are the first and third quartiles respectively.
Another rule is that the lower boundary is found by computing Q1 - 1.5*IQR
On a box and whisker plot, outliers are points that are not connected to the main plot itself. You can think of them as islands far from the mainland.
What are Outliers?
If a number in distribution is more than 1.5 times the length of the box away from either of the upper and lower quartile of the distribution, then that number is said to be an outlier.
The lower quartile is [tex]Q_1[/tex] and the upper quartile of distribution is [tex]Q_3[/tex]
Then lower boundary is given by [tex]=Q_1-1.5\times IQR[/tex]
The Upper boundary is given by [tex]=Q_3+1.5\times IQR[/tex]
If any number or value of the distribution is greater than [tex]Q_3+1.5\times IQR[/tex] then that is called Upper Outlier.
Similarly, if any value or number of the distribution is less than [tex]Q_1-1.5\times IQR[/tex] then that is called Lower Outlier.
So the answers in the boxes are given by:
Box 1: Greater than Box 2: Less thanLearn more about Outliers here -
https://brainly.com/question/3631910
#SPJ2
Find the weekly wage before deductions for following data.
Hours worked Rate in dollars Weekly Wage
32.0
at $6.65
$
36.5
at $8.20
$
37.6
at $8.15
$
.
31.7
at $10.65
$
36.0
at $8.84
$
Answer:
Did I do something wrong because you never did text me back
Step-by-step explanation:
$34
at 9.00
what is the area of circle whose diameter is 32 inches? use π=3.14
Answer:
803.84
Step-by-step explanation:
Radius is half of the diameter.
32/2=16
3.14*16^2=803.84
Answer:
803.84 in^2.
Step-by-step explanation:
Radius = 1/2 * 32 = 16
Area = 3.14 * 16^2
= 803.84.
Pls help me I’ll give out brainliest please dont answer if you don’t know
Step-by-step explanation:
x=-10 is ur answer try it!
Answer:
2x=-20 or simplified version x=-10
Step-by-step explanation:
-8+3x=12+5x
-3x. -3x
-8 = 12+2x
-12=-12+2x
-20=2x
x=-10
A triangular prism has a height of 3 ft, a width of 5 ft, and a length of 8 ft. Find the volume.
a
90 ft3
b
60 ft3
c
150 ft3
d
120 ft3
Answer
120 ft3
Step-by-step explanation:
Length×Width×Height
(8ft×5ft×3ft)
5×3= 15 ft
15×8= 120 ft3
A boat travels 10 miles per hour upstream and 16 miles per hour downstream. How fast is the current?
Answer: The speed of the current is 3 miles per hour.
Step-by-step explanation:
Let x = speed of boat , y= speed of current.
Given:
x-y=10 (Upstream) ...(i)
x+y= 16 (Downstream) ...(ii)
Adding (i) and (ii), we get
2x=26
⇒ x= 13
Put x=13 in (i), we get
13-y=10
⇒ y=13-10
⇒ y=3
Hence, the speed of the current is 3 miles per hour.
Help with this question
Solve 5x/2 > 7
Answer:
x > [tex]\frac{14}{5}[/tex]
Step-by-step explanation:
Given
[tex]\frac{5x}{2}[/tex] > 7 ( multiply both sides by 2 to clear the fraction )
5x > 14 ( divide both sides by 5 )
x > [tex]\frac{14}{5}[/tex]
What is the volume of this rectangular prism?
3
cn
om
5
cm
4
Answer:
1
Step-by-step explanation:
[tex]v = whl[/tex]
1 = 5/4 x 4/3 x 3/5
Who want to help me out
Answer:
A, B, and C
Step-by-step explanation:
Since there are no right angles, 89 is too close to 90 which is a right angles (which there are no angles even close to 90) and 94 would be too large since all angles are less than 90 degrees.
Which equals the ratio of sin A to the nearest hundredth?
Answer:
we cant answer if we dont know what sin A is
plz plz plz help i don't know what to do it's due at midnight
find the length of the line segment. the points are:
A: (-5,-4)
B: (-3,3)
please help!! ______
Answer: The answer is C.
Step-by-step explanation: The hypotenuse in special case isosceles right triangles is always x√2, x being one of the leg lengths since they are the same.
i will give brainliest to first correct answer!! what is the length of YZ? i will report if you give a fake answer
Answer:
25
Step-by-step explanation:
Assume that the college in Offer #1 has a Cost of Attendance of $73,332. Which of the statements below comparing Offer #1 to Offer #2 is TRUE?
College #1 has a lower “cost of attendance” than College #2
Both College #1 and College #2 have the same “net price”
College #1 has a lower “net price” than College #2
College #1 has a higher “net price” than College #2
Answer:
Both College #1 and College #2 have the same “net price”
This is going by the fact that the equivalent money which happens to remain after all the deductions had been made are same. The gross amount, though quite different happens to be same in the available net amount for same education cost in both college.
Step-by-step explanation:
someone help
this dude abuses women
BRAINLY PLS HELP
SOMOENE CALL THE POLICE
his uername is :
3109959
Answer:
BOOST!!!!!!!
Step-by-step explanation:
EVERYBODY REPORT HIM
Answer:
I cant find him. how do I look him up