Answers
Answer: Multiply the second equation by -2
Explanation:
The elimination method requires you to set one variable in an equation to be the opposite of that variable in another equation. As such, due to the presence of 2x in the top equation, you need -2x in the bottom. Then, simply add the equations to get the answer.
Hope it helps :)
Related Questions
can anyone helpp meeee???
Answers
Answer:
Look at the photo.................
Use substitution to solve 2x2=5+y and 4y= -20+8x2
Solve the first equation for Y and substitute it into the second equation. The resulting equation is?
Answers
Step-by-step explanation:
First
2 × 2 = 5 + y
y = -1
And
4y = -20 + 8 × 2
4 × (-1) = -4
-4 = -4
Is this what you wanted?
Calculate the value of x and state the geometric relationship
Answers
So, 6x+12+4x+18=180
Combine like terms:
10x+30=180
Subtract 30 from both sides:
10x=150
Divide both sides by 10:
x=15.
Therefore, the angles are same-side interior angles and x=15.
Hi, I need help with this question and I don't it is right or wrong answer pls correct me and explain.
Answers
Answer:
x=5.5
Step-by-step explanation:
2x+3.50=14.50
2x=14.50-3.50
2x=11
x=11/2
x=5.5
Option B
Let's Find x
[tex]\\ \sf\longmapsto 2x+3.50=14.50[/tex]
[tex]\\ \sf\longmapsto 2x=11[/tex]
[tex]\\ \sf\longmapsto x=11/2=5.5[/tex]
If 10% is RS 1500 then find 90%.
Answers
Answer:
10%=1500
so 100% = 15000
90%= 100% - 10%
15000-1500=13500
90%=13500
Look at the picture of a scaffold used to support construction workers. The height of the scaffold can be changed by adjusting two slanting rods, one of which, labeled PR, is shown: A support structure is shown in which a right triangle PQR is formed with the right angle at Q. The length of PQ is shown as 14 feet, and the length of QR is shown as 6 feet.. Part A: What is the approximate length of rod PR? Round your answer to the nearest hundredth. Explain how you found your answer, stating the theorem you used. Show all your work. (5 points) Part B: The length of rod PR is adjusted to 16 feet. If width PQ remains the same, what is the approximate new height QR of the scaffold? Round your answer to the nearest hundredth. Show all your work. (5 points)
Answers
Answer:
You didn't give us a picture to look at
Step-by-step explanation:
-7 + - 20 please help me i really don't understand
Answers
Answer:
-27
Step-by-step explanation:
-7 + - 20
let's not forget that a + and a - is equal to a - therefore all the question really says is ...
-7-20
which is now easier to do and is equal to
= -27
Hope this helped you, have a good day bro cya)
Solve for x.
x ÷ 0.6 = 9.3
x = 5.58
x = 9.9
x = 8.7
x = 15.5
Answers
Answer:
x=5.58
Step-by-step explanation:
Answer: 5.58
All the other answers are wrong. You want to subtract both sides to get x alone. I used a calculator.
Please HELPPPPPPPPPP
Answers
Answer:
1.3
2.6
3.24
Step-by-step explanation:
Hope it helps
B)6
C)6/1=6
I hope I helped
I need to solve for x
Answers
Answer:
x = 10
Step-by-step explanation:
The exterior angle theorem states that the measure of each exterior angle of a triangle is equal to the sum of the opposite and non-adjacent interior angles. The two non-adjacent interior angles opposite the exterior angle are sometimes referred to as remote interior angles.
In the given problem, the exterior angle is < JUV, and its corresponding remote interior angles are < V and < W.
Establish the following equation according to the exterior angle theorem:
< V + < W = < JUV
88° + (5x + 1)° = (14x - 1)°
Solve for x algebraically:
88° + 5x + 1 = 14x - 1
89 + 5x = 14x - 1
89 + 1 + 5x = 14x - 1 + 1
90 + 5x = 14x
90 + 5x - 5x = 14x - 5x
90 = 9x
90/9 = 9x/9
10 = x
Therefore, the value of x = 10.
A fishing boat radioed the Coast Guard for a helicopter to pick up a sick crew member. At the time of the message, the boat is 660 kilometers from the helicopter and heading toward it. The average speed of the boat is 30 kilometers per hour, and the average speed of the helicopter is 300 kilometers per hour. How long will it take the helicopter to reach the boat
Answers
Anyone please help me to solve this problem Fast fast plz plz
please.
Answers
[tex] - \frac{2}{ \sqrt{2} } \\ \\ in \: \: alternate \: \: form \\ \\ = - 0.7070107[/tex]
hope it helps
Help me with this pls!!!
Answers
Answer:
B) $1.25
Step-by-step explanation:
1. First, let's take two points. In this case, we're going to take (4,5) and (8,10). We took 2 points, so we can verify the unit rate/cost per pound of pineapple.
2. To find the cost per pound of pineapple, we have to divide the cost (the y-coordinates) by the pound (x-coordinates)
5 ÷ 4 = 1.2510 ÷ 8 = 1.253. Now, since we can verify with 2 coordinates that the cost per pound is $1.25, the answer is B) $1.25.
what is 5713 – 75 =
show your workings out
Answers
Answer:
5713 - 75
= 5638
Step-by-step explanation:
brainliest plz
is the answer C, E, A, B, or D?
Answers
Answer:
the answer is B hope this helps
please mark mw brainalist
Hi, I need help with this math . What is inpendent and dependent variable in question?
Here's the question: The formula for the surface area of a right rectangular prism is a=2LW+2HW+2H , where l, w, and h represent length, width, and height , respectively, which term of this formula is not dependent on the height?
1) A
2) 2LW
3) 2HW
4) 2LH
Answers
Answer:
Answer is option 2 (as it doesn't contain H)
Step-by-step explanation:
If you like my answer than please mark me brainliest
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
The term in the formula which isn't dependent on height is :
2.) 2LWIf the spinner shown is spun 40 times,predict the number of times the spinner would land on section A. Give the number of times only
Answers
help please, im confused
Answers
Answer:
same sir sorry can't help you ok bye sorry
Someone plz help me :(
Answers
Answer:
28 miles
Step-by-step explanation:
12:3
7:x
12÷3=4
4 miles per hour
7•4=28
Explanation: Since she ran 12 miles in 3 hours, we can simply do 12m/3 and get a pace of 4m or 4 miles per hour. Then multiply 4 by 7 because thats how many hours she has to run. The answer is 28.
hi i need help my lazy -
Answers
Answer:
1/4 x (3 x 7) less than
(3 x 7) ÷ 5 less than
(3 x 7) - 8 less than
(3 x 7) ÷ 1 equal to
1 x (3 x 7) equal to
5 + (3 x 7) Greater than
(3x7) x (3-1) Greater than
(3x7) + (1-1) equal to
Step-by-step explanation:
i hope this is right
5
Beena has a holiday in a villa in France.
The total cost of her travel is £349
Beena is on holiday for 2 weeks.
The cost of the villa is 650 euros per week.
While on holiday, Beena has 7 art lessons.
The cost of each art lesson is 45 euros.
Using an exchange rate of 1.12 euros = £1
(a) work out the total cost of Beena's travel, villa and art lessons.
Give your answer in pounds (£).
Answers
Answer:
The answer is 25 because they're both the same.
Mark me as brainliest please.
Step-by-step explanation:
The total cost of Beena's travel, villa and art lessons = £1790.97
What is multiplication?In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life.
here, we have,
The total cost of her travel is £349
Beena is on holiday for 2 weeks.
The cost of the villa is 650 euros per week.
i.e. 2*650
=1300 euros
=1300/1.12
=£1160.71
While on holiday, Beena has 7 art lessons.
The cost of each art lesson is 45 euros.
i.e. total cost = 7*45
=315
=315/1.12
=£281.25
[Using an exchange rate of 1.12 euros = £1]
Hence, The total cost of Beena's travel, villa and art lessons = £1790.97
To learn more on multiplication click:
brainly.com/question/5992872
#SPJ2
helppppppppppppppppp meeeeeeeee
Answers
Answer:
1.392 km²
Step-by-step explanation:
8.352÷6
please mark me brainliest
–3.8p + 4.5p − 6.67 = –9.57 + 0.2p how do u solve p?
Answers
Answer: p = - 5.8
Step-by-step explanation:
0.7p - 0.2p = -9.57 + 6.67
0.5p = -2.9
p = [tex]\frac{-2.9}{0.5}[/tex]
p = - 5.8
please give me a brainliest answer
Which statement BEST compares the growth of the two functions shown in the table?
A
The value of the exponential function will never be greater than the linear
function
B)
The value of the linear function will never be greater than the exponential
function
The value of the linear function will eventually be greater than the
exponential function
D)
The value of the exponential function will eventually be greater than the
linear function
Answers
Answer will be (D)
The value of the exponential function will eventually be greater than the
linear function.
and
B)
The value of the linear function will never be greater than the exponential
function
Which property is illustrated by the equation below?
(7+6) +4= 7+ (6 + 4)
associative property
O commutative property
distributive property
O identity property
Answers
Answer:
We conclude that the question illustrates associative property.
A number is first increased by 20 and then doubled. The result is less than 5 times the number
Answers
Answer:
25=x
Step-by-step explanation:
2x+20=3x-5 (x=25)
can anyone explain to me how to do this question ? ty !!
Answers
Step-by-step explanation:
use a little imagination.
the whole thing is a combination of churches and half- circles.
and you know the formula for the area of a circle ?
A = pi×r²
so, the only difficulty is to find the circles and then the radius of each involved circle.
when you look at the picture, the shaded area is almost identical to the lower half of the main circle.
2 bumps "look" over into the other side, but one equally sized bump is removed from this lower half.
so, as a first step we will calculate the area of the lower half of the main circle.
the diameter is 24 m, so the radius is half of that : 12m
the area of the large circle is therefore
pi×12² = 144×pi m²
since we only need the (lower) half, we divide this by 2 :
144×pi / 2 = 72×pi m²
the bumps up and down are actually half-circles too. just of smaller circles.
since AB = BC = CD, we know each of these lines are 1/3 of the main diameter AD.
so, the diameter of the smaller circles is 24/3 = 8 m
and their radius is half of that = 8/2 = 4m
the area of such a small circle is therefore
As = pi×4² = 16×pi m²
and a small half-circle area is then
16×pi / 2 = 8×pi m²
so, for the full shaded area I need to take the large half-circle and add 2 small half-circles, and then subtract 1 small half-circle.
so, in total I only need to add 1 small half-circle.
Ashaded = 72×pi + 8×pi = 80×pi m²
please actually help me
Answers
Answer:
A.) 6:51
B.)The train at 6:42
C.)34 minutes
36.05 rounded off to the nearest tens place
Answers
Answer:
36.1
Step-by-step explanation:
if the 100s place is 5 or above add 1 to the tens place. if it's 5 or below the tens will stay the same.
Which transformations will map octagon PQRSTVWZ onto itself?
Answers
Answer:
Rotation, Reflection and Translation.