X
8.
13
Solve for enter the number only)
4x + 5y = 22
7x - 3y = -32
Answer:
x = -2
y = 6
Step-by-step explanation:
i multiplied the 1st equation by 3 and the 2nd by 5 to get the y-terms to zero out
12x + 15y = 66
+ 35x - 15y = -160
47x = -94
x = -94/47
x = -2
substitute -2 for 'x' to solve for 'y':
4(-2) + 5y = 22
-8 + 5y = 22
5y = 30
y = 6
The price of a table went from $1,400 to $500
Answer:
900
Step-by-step explanation:
well I think we are subtracting so if this is not correct i'm sorry but you did not state the whole question so if this is wrong it is not my fault but I hope this right and helpful
The polynomial 2x³ + qx² + rx + 2 has a
factor (x - 1) and leaves a remainder of
12 when divided by (x - 2). Find the
constants q and r and hence the other
factors of the polynomial.
Answer:
q = 1 , r = -5
other factors of polynomial:
(2x - 1) & (x + 2)
Step-by-step explanation:
In the first part, substitute x = 1 make it equal to 0.
Substitute x = 2 and make it equal to 12.
Rearrange both, until you have two linear equations.
Solve the set of simultaneous equation to find q and r .
Second part place the value of q and r to have the full polynomial.
Carry out long division, dividing the polynomial by the factor that's stated in the question (x - 1) and you will have a quadratic equation.
Factorise the quadratic equation to have the two other factors of the polynomial.
Hope this helps:))
I can’t do this plz help
A metalworker has a metal alloy that is 25% copper and another alloy that is 70% copper. How many kilograms of each alloy should the metalworker combine to create 100 kg of a 61% copper alloy?
Answer:
The metal worker should use 10 kgs of 25% copper alloy and 40kgs of 70% copper alloy to make it
Step-by-step explanation:
Answer:
The metalworker should use 10 kgs of 25% copper and 40 kgs of 70% alloy to make it.
Solve for x: 3(x + 5) + x =7
Answer:
x=-2
Step-by-step explanation:
Answer:
x = -2
Step-by-step explanation:
PLEASE ANSWER ASAP !!!!!
Answer:
2/1=2
Step-by-step explanation:
slope=change in y/change in x. 1 to 3 is 2, 7 to 8 is one, so 2/1 or 2
Answer:
Slope is 2
Step-by-step explanation:
Antonio works at the circus making balloon animals, charging $3 for a balloon animal. Before he took a lunch break at noon, he sold 14 balloon animals. After lunch, he goes back to selling balloon animals for the rest of the day. Write an equation for the amount of money Antonio makes. How many balloon animals would Antonio need to sell after lunch to make $117 for the day?
Plot the following points on the coordinate plane. Connect them, and find the area of the shape that results.
(3,2) (-6,2) (-6,-8) (3,-8)
Answer:
The shape is a square and it's area is 121
HOPE THIS HELPS!!!
Please answer for Brainliest.
calculate the median for the following set of scores
45, 69, 69, 87, 88, 92, 99, 100
:)
Rick's cat weighs 7 pounds. His neighbor says her puppy weighs 103 ounces.
Does Rick's cat weigh more than the puppy?
1 pound = 16 ounces )
How much does Rick's cat weigh in ounces?
Answer:
1. Yes
2. 112 ounces
Step-by-step explanation:
To answer this question, we should first convert the amount of pounds Rick's cat weighs into ounces, so that both measurements are in the same unit. Since 1 pound is the same as 16 ounces, we can multiply 7 pounds by 16 ounces:
7 * 16 = 112
So, Rick's cat weighs 112 ounces, which is more than his neighbor's puppy, which only weighs 103 ounces. so for the first question, the answer is:
Yes, Rick's cat weighs more than the puppy.
And the second answer is:
Rick's cat weighs 112 ounces.
Hope this helps :)
7X+6-2x+3=
please help
7 X + 6 − 2 x + 3 = 7X−2x+9
Given right triangle ABC with altitude BD is drawn to hypotenuse AC. If AB=5 and AD=1, what is the length of AC ? (Note: the figure is not drawn to scale.)
Answer:
x = 24.99 or 25
Step-by-step explanation:
Using sin to figure out the angle of ABD, we can figure out the angle of CBD by subtracting it from 90°.
sin y = (1/5)
y = 11.54°
90 - 11.54 = 78.46°
Now using Pythagorean Theorem (a²+b²=c²) we can solve for line BD.
1² + b² = 5²
1 + b² = 25
b² = 24
b = √24
Now we can use tan to figure out the length of segment DC.
tan(78.46) = z/√24
z = 23.99
We can now combine the known length of segment AD and the length of DC to get x.
1 + 23.99 = 24.99 or about 25.
9) 8.081 +
+ 0.6 = 10.201
10)
- 3.328 = 0.96
The sum of 4 consecutive integers
is 354
Consecutive integers are numbers in a row on a number line (ie. 4,5,6 or 457,458,459 or 12341, 12342, 12343). They can also be negative as long as the problem doesn't specify if it's positive.
x= first integer
x+1= second integer
x+2= third integer
x+3= fourth integer
Add the four integers equal to 354.
x + (x+1) + (x+2) + (x+3)= 354
combine like terms
4x + 6= 354
subtract 6 from both sides
4x= 348
divide both sides by 4
x= 87 first integer
THREE REMAINING INTEGERS
x+1= 87 + 1= 88 second integer
x+2= 87 + 2= 89 third integer
x+3= 87 + 3= 90 fourth integer
ANSWER: The four consecutive integers are 87, 88, 89 and 90.
Hope this helps! :)
Please mark me as brainliest.
Answer:
Step-by-step explanation:
Sarah would like to build a garden this year. Sarah measured out the outside of her proposed garden and would like to know how many square feet of space she will have to use. Calculate the area of her garden from the picture below.
please show your work/how you got your answer :)
Answer: 439,824 ft
Step-by-step explanation: the | means it is equal to so there is one on 7ft so the one without a number will be 7ft
Area is LxW
so 7x6x8x11x17x7=439,824
not sure if it’s correct tho but i guess I helped
5. After t seconds, a ball tossed in the air from the ground level reaches a height
of h feet given by the function h(t) = 144t – 16t^2. PART A: What is the height of
the ball after 3 seconds? PART B: After how many seconds will the ball hit the
ground before rebound? -
Answer:
a = 288 feet, b = 9 seconds
Step-by-step explanation:
t = 3, solve for h(t)
h(3) = 144(3)-16(3)^2
=432-144
=288
H(t) = 0, solve for t
0=144(t)-16(t)^2
t = 0, t =9
30 POINTS!!!
Consider the system of equations. x – 3y = 9 1 5 x - 2y = -1 Which number can be multiplied by the second equation to eliminate the x-variable when the equations are added together?
-10
-5
5
10
Answer:
B. -5
Step-by-step explanation:
multiply the opposite number than the denominator
hope this helps :3
pls mark brainliest
Answer:
The answer is B. -5.
Step-by-step explanation:
i did it on edge
PLEASE FAST ANSWER ME PLEASEEE
During the election for class president, 30% of the students voted for Ruby, and 70% of the students voted for Ellie. 500 students voted in total. How many MORE students voted for Ellie than for Ruby?
Answer:
150,350
Step-by-step explanation:
FOR RUBY:
500x30/100=150
FOR ELLIE:
500x70/100=350
Answer:
200.
Step-by-step explanation:
100%->500
1%->500÷100=5
Ruby->30%->30×5=150
Ellie->70%->70×5=350
diff->350-150=200(ans)
Figure STUV will be translated 2 units to the right and 4 units up to form S'T'U'V'. Which ordered pair best represents point U'?
A.(3,5)
B.(6,2)
C.(-1,6)
D.(2,2)
Answer:
(6,2)
Step-by-step explanation:
U is at (4, -2)
shifting to the right and up means that you will add 2 to x and 4 to y
(6,2)
*PLEASE HELP ASAP!!!*
Can you please help me its really easy!!
Answer:
400 + 157.08 = 557.08??
Step-by-step explanation:
help me pls!!!! :c rip
Answer:
p^⁴/5
Step-by-step explanation:
Step-by-step explanation:
p^4/5. I just know the answer
what is the value of x , where
2x + 1 = 99
Answer:
x=49
Step-by-step explanation:
2x+1=99
2x=98
x=49
Answer:
To find the value of x we need to solve this equation
2x + 1 = 99
now ,taking constant to right side
2x = 99 - 1
2x = 98
x = 98/2
x= 49
hope it will help ,sir
The graph shows six labeled points. How many distinct circles of radius 2 units are in the coordinate plane and pass through exactly two of the labeled points on this graph?
if there was a graph I would be able to help you but you have on here how many distinct Circles of radius 2 units are on the coordinate plane and pass through exactly two of the labeled point on this graph? Where is the graph?
What does "area" mean in a circle?
Answer:
A = π(r)²
Step-by-step explanation:
The area of a circle is the inside of a circle. It can be found by multiplying pi by the radius raised to the power of 2 (squaring the radius).
y= 2? + 16x + 64
1. Identify a, b, and c
b=
C=
ask a tutor for help with that my dude I don't know sorry
.5+y-5÷34+3×7 -6 =45
Answer:
y=2205
Step-by-step explanation:
5+y-5/34+3*7-6=45
combine terms on each side
y/49=45
multiply 49 on each side
y=2205
i hope this helps you
Answer:
y=855/34 or 25 5/34
Step-by-step explanation:
Rewrite
5+y-5/34+3x7-6=45
Calculate Sum or differnce
5+y-5/34+21-6=45
Caculate difference
20+y-5/34=45
Move constant to the right
675/34+y=45
Caculate Difference
y=45-675/34
y=855/34 or you could put 25 5/34