Answer:
40x=120
10r=130
Step-by-step explanation:
8(5x=15-5y)= 40x=120-40y
5(8y+26=2r)= 40y+130=10r
40x=120-40y
10r=130+40y
40x=120
10r=130
This is as far as I could get because the two numbers have two different variables, I couldn't subtract or add. It would be like subtracting apples from oranges... you can't
[tex]\begin{cases}5x=15-5y\\ 8y+26=2x\end{cases}\\\\\begin{cases}5x+5y=15\\ -2x+8y=-26\end{cases}\\\\\begin{cases}(5x+5y)\cdot2=15\cdot2\\ (-2x+8y)\cdot5=-26\cdot5\end{cases}[/tex]
+ [tex]\begin{cases}10x+10y=30\\ -10x+40y=-130\end{cases}[/tex] (adding first equation to second)
[tex]\begin{cases}10x+10y=30\\{}\qquad50y=-100\end{cases}\\\\\begin{cases}10x+10y=30\\{}\qquad y=-2\end{cases}\\\\\begin{cases}10x+10(-2)=30\\y=-2\end{cases}\\\\ \begin{cases}10x-20=30\\y=-2\end{cases}\\\\ \begin{cases}10x=50\\y=-2\end{cases}\\\\ \begin{cases}x=5\\y=-2\end{cases}[/tex]
We are solving for #4
Answer: 3.50p + 5.50p +6 = 51; 61
Answer: 5 people
Step-by-step explanation:
For this word problem, we can use the description in the problem to construct an equation. Let's use x for number of people.
3.5x+5.5x+6=51 [combine like terms]
9x+6=51 [subtract both sides by 6]
9x=45 [divide both sides by 9]
x=5
There were 5 people that went to the fair.
This week, Ivania ran a total of 20 km, which is 6.5 km farther than she ran last week. If w represents the number of kilometers she ran last week, what is the equation that models this situation?
Answer:
Step-by-step explanation:
6.5 + w = 20
13.5 km
Answer:
C first then for second one is b
Step-by-step explanation:
I just did the assignment
This figure is a square, with side lengths as shown. What are the perimeter and the area of the square?
Answer:
Step-by-step explanation:
Parameters:
As square has all equal sides in his shape.
then length and width will be equal.
parameters will be
LENGTH,LENGTH,WIDTH,WIDTH
Area:
area of square is known as A= a^2
a= parameter of square (as all parameters are equal,you put one parameter to find area of square)
The required perimeter of the square is 4 times side and the area of the square is ( side ) ².
Given that,
To determine the perimeter and the area of the square.
A square is defined as it is a four-sided polygon, having angles of 90° on its vertices, and the length of all four sides is equal.
What is the perimeter?Perimeter is the measure of the figure on its circumference or it is overall boundary length of the figures.
Here,
The perimeter of the square is given as the sum of all sides,
= side + side + side + side
= 4 x side
The area of the square is multiplied of two adjacent side
= side x side
= ( side )²
Thus, the required perimeter of the square is 4 times side and the area of the square is (side)².
Learn more about squares here:
https://brainly.com/question/14979907
#SPJ2
The result of which expression will best estimate the actual product of (-4/5)(3/5)(-6/7)(5/6)?
A.(-1)(1/4)(-1)(-1)
B.(-1)(1/2)(-1)(1)
C.(-4/2)(3/2)(-2/5)(5/2)
D.(-3 /4)(-3 /4)(-1/5)(1/2)
For the -3 /4 both the 3 is the only negative numbers I put the photo to show you.
Answer: the answer is B have a nice day :)
Step-by-step explanation: got it right on edge
Find an equivalent fraction for the decimal number. In your final answer, include all of your work.
-—
0.61
A rectangle has a height of 7a² and a width of a4 + 5a2 + 4.
Express the area of the entire rectangle.
Your answer should be a polynomial in standard form.
Answer:
[tex]( {7a}^{2} \times {a}^{4} ) + ({7a}^{2} \times {5a}^{3}) + ( {7a}^{2} \times 4) = {7a}^{6} + {35a}^{5} + {28a}^{2} [/tex]
I f m ∠ P i s t h r e e l e s s t h a n t w i c e t h e m e a s u r e o f ∠ Q , a n d ∠ P a n d ∠ Q a r e s u p p l e m e n t a r y a n g l e s , f i n d t h e m ∠ P .
Answer:
The value of angle P is 119 degrees
Step-by-step explanation:
When two angles are supplementary, it means that they add up to be 180 degrees. For example, if we have two angles only on a straight line, then both angles are supplementary angles.
Now, the information we have from the question is that angle P is three less than twice the measure of Q.
What this mean is that if Q is x, then P is 2x-3
So let’s add both to equal 180 since they are supplementary;
x + 2x -3 = 180
3x -3 = 180
3x = 180 + 3
3x = 183
x = 183/3
x = 61
This is the value of Q;
The value of P which we are asked to look for is 2x -3 = 2(61) -3 = 122 -3 = 119 degrees
...............................
Someone please help whats the answer
A bank account has a balance of - $7.25. What is the absolute value of -7.25?
What is the product?
(y^2+3y+7][8y^2+y+1)
Answer:
8 y^ 4 + 25 y^ 3 + 60 y^ 2 + 10y + 7
Hope this helps!
Answer:
8 y^ 4 + 25 y^ 3 + 60 y^ 2 + 10y + 7
Step-by-step explanation:
edge 2021
Multiply(-7)(2)(-2)
Answer:
answer is 28..
mark it as brainliest
CAN SOMEONE MAKE SENSE OUT OF THIS. please i need explaining!!! Shawn's square living room needs new flooring. He needs 196 square feet of flooring to cover the living room. What are the dimensions of Shawn's living room? Since Shawn's living room is in the shape of a square, we know that the length of each side is exactly the same. If we let s represent the length of the room, we can write an equation using the area of a square formula (A = s2). A=s•s=s2=196 Using the definition of square root: s2 = 196 s = ±√196 s = ±14 But since we are talking about the dimensions of Shawn's living room, the only real solution to this problem is 14 feet (because a solution of -14 feet would not be possible).
Step-by-step explanation:
Shawn's living room is a square, so all four sides are the same length. Area of a square is A = s², and we know the area is 196 ft². If substitute this for A:
196 ft² = s²
Take square root of both sides:
s = √(196 ft²)
s = ±14 ft
Since measurements of lengths can't be negative, s must be +14 ft. So Shawn's living room is 14 ft x 14 ft.
Answer:
14 ft x 14 ft.
Step-by-step explanation:
What is 13/100 in simplest form?
Answer:
0.13
Step-by-step explanation:
8x-3x+2=______ I need the equation to be a no solution
If h(x) = -3x - 10, find h(-3).
O
-1
O
2.3
O
1
-19
Diamond bought a few swirl marbles and divided it equally among four of her friends and her brother, Jordan. While playing, Jordan lost 4 marbles and has only 8 marbles at present. Find how many marbles Diamond bought in all.
Answer:
45?
9 marbles x 5 (four of her friends plus jake)
Step-by-step explanation:
8+1/2(12)=x
Solve please
Answer:
8+ 1/2 (12) = x
8+ 6 = x
Therefore x = 14
Answer:
The answer is X = 14
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
Step 2: Flip the equation.
POSSIBLE POINTS: 1
Which of the following situations involve opposite quantities combing to make 0 ?
Stella has a new piggy bank. She adds 3 quarters on Tuesday and then adds another 3 quarters on Thursday.
Devon opens a new checking account with $30. His first purchase made with his new debit card, totals $28.
Joe makes 1 1/2 liters of lemonade and drinks it all during the afternoon.
Brittany is writing a novel. She wrote 4 new pages to finish Chapter 1. When she reviews Chapter 1, she discards these 4
pages and an additional 4 pages.
Answer:
2) Joe makes 1 1/2 liters of lemonad and drinks it all during the afternoon.
Step-by-step explanation:
1.5 - 1.5=0
help..........me .................
Answer:
good morning foul human i cannot help you because i cant see your images if you could type them out i might have enough brain cells left to help you adios amigo
Step-by-step explanation:
() c=3
2 3/8 - (-2 7/8) figure this out before the end of the day please
Answer:
5 1/4
Step-by-step explanation:
Subtracting a negative is the same as adding a positive.
2 3/8 - (-2 7/8) =
= 2 3/8 + 2 7/8
= 4 10/8
= 4 + 8/8 + 2/8
= 4 + 1 + 1/4
= 5 1/4
I really need help on this
Wich of the following numbers is larger than 4 1/4 but smaller than 4 3/4
Answer:
4 2/4
Step-by-step explanation:
If you only want the answer in whole number and quarters, that's the only answer. Otherwise, it could be a lot more answers. Let me know if this helps! :)
Which inequalities can be used to find the solution set of the following inequality? Check all that apply. |2x – 5| Greater-than-or-equal-to 8 (2x – 5) Greater-than-or-equal-to 8 (2x – 5) Less-than-or-equal-to 8 (2x + 5) Greater-than-or-equal-to 8 –(2x – 5) Greater-than-or-equal-to 8 –(2x + 5) Greater-than-or-equal-to 8
Answer:
its 1 and 4
1. (2x – 5) ≥ 8
4. –(2x – 5) ≥ 8
Step-by-step explanation:
i just did the test
Answer: A,D
Step-by-step explanation:
10 – 2(2x + 2) > 14
Help meeee
Answer:
x < -2
Step-by-step explanation:
1. Original Inequality: 10 – 2(2x + 2) > 14
2. 10-4x-4>14
Distribute the -2 to 2x and 2.
3. Simplify the left side: 6-4x>14
Do 10-4
4. Subtract: -4x>8
Subtract 6 from both sides to get x by itself
5. Divide: x< -[tex]\frac{8}{4}[/tex]
You want to divide by -4 that way you can find what x is. When you divide OR multiply by a negative number in an inequality you are going to need to switch the way the sign is facing.
6. Simplify: x< -2
7. Check:
10-2(2(-3) +2) > 14
10-2(-6 + 2)
10-2(-4)
10+8
18 > 14
Hello! :)
−4x + 6 > 14 Simplify both sides
−4x + 6 − 6 >1 4 − 6 Subtract 6 from both sides
−4x > 8
-4x/-4 > 8/-4 Divide both sides by -4
x < -2 (ANSWER)
Hope this helped you!
THEDIPER
What is the slope of the line through (-7,-2) and (-6, 7)?
Choose 1 answer:
1
9
B
-9
9
Answer:
9Step-by-step explanation:
Slope is rise over run or change y/change x.
7 - -2 = 9
-6 - -7 = 1
Slope = 9/1 or 9
___________________________________________________I AM ALWAYS HAPPY TO HELP :)F(x)=-2x^2 -5x+1
H(x)=3(x+3)^2-11
H(f(-1))=?
A.132
B. 136
C.140
D.144
Answer:
B
Step-by-step explanation:
So we have the two functions:
[tex]f(x)=-2x^2-5x+1\text{ and } h(x)=3(x+3)^2-11[/tex]
And we want to find:
[tex]h(f(-1))[/tex]
So, find f(-1) first. Substitute -1 into f(x):
[tex]f(-1)=-2(-1)^2-5(-1)+1[/tex]
Square:
[tex]f(-1)=-2(1)-5(-1)+1[/tex]
Multiply:
[tex]f(-1)=-2+5+1[/tex]
Add:
[tex]f(-1)=4[/tex]
Now, substitute this into h(f(-1)):
[tex]h(f(-1))=h(4)[/tex]
So, substitute 4 into h(x):
[tex]h(4)=3(4+3)^2-11[/tex]
Add:
[tex]h(4)=3(7)^2-11[/tex]
Square:
[tex]h(4)=3(49)-11[/tex]
Multiply:
[tex]h(4)=147-11[/tex]
Subtract:
[tex]h(4)=136[/tex]
So, our answer is B.
And we're done!
If f(x) = x2 + 4x - 12, find f(2).
Answer:
-3
Step-by-step explanation:
Please write this as f(x) = x^2 + 4x - 12. "x^2" represents "the square of x."
f(2) is the value of this function when x = 2:
f(2) = f(2) = (2)^2 + 4(2) - 12 = 9 - 12 = -3
first correct answer will get brainiest!!
On the first play of a football game, the Tigers moved backwards 5 yards. On the second play, the Tigers moved forward 10 yards. On the third play, they moved forward 10 yards. What is the total gain or lost in the three plays?
Answer:
they moved forward 15 yards
Step-by-step explanation:
pleez help meeeeeeeeeeeeeeeeeee
Answer:
i believe its A and D hope this helps:)
Step-by-step explanation:
help me find b and c
Answer:
b = 48 °, c = 46°
Step-by-step explanation:
c = 46 ° as between parallel lines, alternate opposite angles are equal.
since opposite angles are equal 94 ° = 46 ° + additional angel
therefore b = 94° - 46 ° = 48 ° , as sum of 2 internal angles of a triangle is equal to opposite exterior angle.