I'm having trouble solving the system of linear equations. This is the system: 5x + 6y = 50 x - 6y = -26 Can you please help me? Don't give the answer, but can you just explain?
Answer:
y = 5 ; x = 4
Step-by-step explanation:
Given :
5x + 6y = 50 - - - (1)
x - 6y = -26 - - - (2)
From (2)
x = - 26 + 6y
Put - 26 + 6y for x in (1)
5(-26 + 6y) + 6y = 50
-130 + 30y + 6y = 50
-130 + 36y = 50
-130 - 50 = - 36y
-180 = - 36y
y = 180 / 36
y = 5
Put y =5 in x = - 26 + 6y
x = - 26 + 6(5)
x = - 26 + 30
x = 4
y = 5 ; x = 4
please help, I have so much work to do, and I have to fit in time to study for a huge test they will determine my future
fill in the 5 blanks
Answer:
11
13
15
23
Step-by-step explanation:
you substitute each x value in the table with the x in the equation
f(x)= 2x+13
f(x)= 2(-1)+13 .... repeat for each
11
13
15
17
20
In order from the top
Question 3
20 pts
What is the area of the triangle below? (Just put in the number not the unit)
4.5 feet
4.5 feet
13.4 feet
8.8 feet
NO LINKS PLEASE HURRY
Answer:
14.96 is the area of the triangle
I need help I accidentally hit the answer 7
Answer:
A.4
Step-by-step explanation:
The diameter of the bigger circle is 14
You first subtract 6 from 14 which is 8
8 is the diameter of the smaller circle the radius is 4
your answer is A.
A 30 foot ladder is leaning against the side of a building and is positioned such that the base of the ladder is 21 feet from the base of the building how far above the ground is the point where the ladder touches the building
Answer:
21.42ft
Step-by-step explanation:
a²+b²=c² where "c" is the hypotenuse of a right triangle and "a" and "b" are the two other sides
now let's plug in the values
21²+b²=30²
b²= 30² - 21²
b²= 459
b= 21.42
I REALLY NEED HELP WITH THIS QUESTION
Answer:
d i have done this before
Step-by-step explanation:
Answer:
It is B
Step-by-step explanation:
If im wrong sorry but i got big brain :0
Solve the inequality.
Please help.
Answer:
2 < x <_ 3.5
Step-by-step explanation:
First, find the value of x by writing it as an equation. Then, use 0 as x to determine the correct inequality.
WILL GIVE BRAINLIEST!
Use the formula N = t2 − t/2, where N is the number of basketball games that must be scheduled in a league with t teams if each team is to play every other team once.
A league has 45 games scheduled. How many teams are in the league if each team plays every other team once?
teams
Answer:
t=7
Step-by-step explanation:
N=45
find t
45=t^2-t/2
0=t^2-t/2-45
use the quadratic formula
t=6.96~=7
Answer:
Step-by-step explanation:
45 = t2 - t/2
45 = 30(2) - 30/2
45 = 60 - 15
45=45
PLEASE HELPPPP I'LLL GIVE BRAINLISTS
Answer: A
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
For one scientific notation will not work with negative exponents therefore we can eliminate answer choices A and D
Secondly scientific notation usually has a decimal
Answer choice c does not have a decimal point leaving us with answer choice B
Question 3 plzzz thanks u
Answer:
the pic is blank we can't see
Step-by-step explanation:
Name the figure shown.
Find the length
*Will give brainlist
*Comment if i didn't describe enough
*STEP BY STEP
HELP I NEED HELP ASAP
What is the sum of the solutions to the equation (3x-16)(2x+15)=0?
A. 13/240
B. 13/6
C. -13/240
D. -13/6
Answer:c
Step-by-step explanation:
Answer:
(3x-16)(2x+15)=0
A. 13/240
HELP!!! PLZ!!!!!! what the answer??? The choices are yes and no.
A cereal brand is on sale $2 for 32 oz. If Sally spent $8 on the cereal, how many ounces did she purchase?
Answer:
it would be 128 because 8 divded 2 is 4. 4 is the number of cereal boxes now multiply 4 x32 which would be 128
Can you help me, please?
Answer:
a. 18
b.144
c.108
Step-by-step explanation:
Using the given, Angle R equal 5x-54 and Angle T is 8u.
Also RS is congruent to ST. Since SR is congruent to ST, their opposite angles are also congruent using base angle theorem. So angle R is equal to Angle T. However, STU is a exterior angle so STU isn't congruent to SRT.
However, we can add , interior angle T, and STU to 180 to find x.
Interior angle T=SRT so interior angle t=5x-54.
Set up equation
[tex]5x - 54 + 8x = 180[/tex]
[tex]13x - 54 = 180[/tex]
[tex]13x = 234[/tex]
[tex]x = 18[/tex]
b.Plug 18 into 8x
[tex]8(18) = 144[/tex]
STU=144
c. Using the triangle exterior angle theorem, the exterior angle is equal to the measure of the sum of two non adjacent angles.
Angle S and Angle R are the non adjacent angle to STU.
So we cast up this equation.
[tex]5x - 54 + s = 180[/tex]
plug 18 in for x
[tex]5(18) - 54 + s = 144[/tex]
[tex]90 - 54 + s = 144[/tex]
[tex]36 + s = 144[/tex]
s=108
How would you calculate the area of the quarter circle represented in the upper left hand corner of this figure?
(see pictures for answer options)
Answer:
Step-by-step explanation:
To find the area of a quarter circle, find the area of the whole circle by using the formula A = pi * r^2 and then divide by 4. To find the perimeter of the quarter circle, find the circumference of the whole circle, divide by 4, and then add the radius twice.
Answer: [tex]\frac{\pi *r^{2} }{4}[/tex]
Step-by-step explanation: We know that the formula for the area of a whole circle is πr². A quarter circle is one-fourth of a circle, so if we divide the area of the whole circle into four, we can find the area of the quarter circle: [tex]\frac{\pi *r^{2} }{4}[/tex]
help asap!
Find the probability of at least one failure in five trials of a binomial experiment in which the probability of success is 30%. Round to the nearest tenth of a percent.
Will someone make me
Two one-step equations
Two equations that contains fractions
One equation with distributive property
One equation with decimals
One real-world problem that is solved by an equation
Plzzzzzz it is due at 8:00 tonight
Answer:
x+5=12
x+7=15
x+ 1/2=1
x+1/3=1
4(x+1)= 8
1.5+x=3
Olivia is 5 years older than Nicole. The sum of their ages is 35. How old is each girl?
Step-by-step explanation:
how this helps!
Simplify -5(4x-3) please help?
Answer:
-20x+15
Step-by-step explanation:
You use foil method so you distribute it and it becomes -5*4x amd -5*-3 so it would be -20x+15
-5 x 4x=-20x and -5x x -3 = +15
-20x+15 is the answer
PLEASE HELP!!! PICTURE INCLUDED please look at it!!! ILL MARK U BRAINLIEST IF U GET IT RIGHT!!!
Answer:
73 % for the right square, 173% if you need to add both squares together
Step-by-step explanation:
each block is 10, and whole is equal to 100%
Ben is 12 years older than Ishaan. Ben and Ishaan first met two years ago. Three years ago, Ben was 4 times as
old as Ishaan.
How old is Ishaan now?
Answer:
Ishaan is now 6.
Step-by-step explanation:
If Ben is 12 years older, and you have the info that three years ago, he was 4 times as old, then all you have to do is divide 12 by 4, giving you 3. You add 3 to that because it's been three years. You have your answer of 6.
Hope this helps! :)
Help meee pleaseeeeeeeeee
Answer:
3. 25
4. 22
5. 14
6. 12
7. 45
Step-by-step explanation:
12x4=40+8
20-12=2x4
25-4=3x7
4x9=31+5
16+12=7x4
38-5=3x11
6x7=46-4
What is this formula?PLEASE ANSWER THIS QUESTION RIGHT.
Answer:
Quadratic formula
Step-by-step explanation:
You can use the quadratic formula to find solutions for quadratic equations.
Explain how you
use a net to find the surface area of a
prism.
Step-by-step explanation:
To find the total surface area of a prism, you need to calculate the area of two polygonal bases, i.e., the top face and bottom face. And then calculate the area of lateral faces connecting the bases. Add up the area of the two bases and the area of the lateral faces to get the total surface area of a prism.
Hope this helps!
All the love, Ya boi Fraser :)
Answer:
By drawing a net, you can see each face of the prism. You can find the areas of each face and then add them together to find the total surface area.
YW :3
Graph #1 (on the left):
Select]
e
Graph #2 (on the right) [Select ]
Someone answer quickly
math - select all that apply
Answer:
a
Step-by-step explanation:
both the end points are around the same number
A luxury chairs manager found that an employee made 3/4 of a chair every 3/8 of an hour
How many chairs does the employee make per hour?
Answer:
3/4 x 3/8 = 9/32
Step-by-step explanation:
What is 19% as a decimal and a fraction?
Answer:
Decimal - 0.19 Fraction - 19/100
Step-by-step explanation:
Answer:
Decimal: 0.19
Fraction: 19/100
Step-by-step explanation:
19% means that there is 19/100 which is also 0.19 as a decimal. I dont really know how to explain this but can you please mark as brainliest?
Clare has a set of cubes with a volume of 1 cm³ each. She also has a box with a volume of 24 cm³. Exactly two layers of cubes can fit in this box. How many cubes must be in each layer? its a school problem I'm having trouble with
Answer:
12 cubes
Step-by-step explanation:
If the total volume of the box is 24 cm³ and the volume of each cube is 1 cm³ then that means that 24 total cubes can fit perfectly inside the box. Since there can only be two layers of cubes then we simply need to divide the total amount of cubes that will fit in the box by 2 to find the number of cubes in each layer...
24 / 2 = 12 cubes
Finally, we can see that each layer within the box will contain 12 cubes