9514 1404 393
Answer:
x
Step-by-step explanation:
There is already an expression given for x, so that is the easiest variable to substitute for.
Substituting for x using the second equation, you have ...
-3(-2y+14) +y = -14
6y -42 +y = -14
7y = 28
y = 4
x = -2(4) +14 = 6
The solution is (x, y) = (6, 4).
_____
Substitution for x is the easiest.
__
The first equation could be rearranged to give an expression for y:
y = 3x -14
Then that can be used to substitute for y in the second equation. My lazy brain judges that to be more work.
Which value of y makes the equation below true?
−4(y+2)−6(y−3)=12
A y=−19/5
B y=−1/5
Cy=−13/10
D -y=−11/5
Answer:
B
Step-by-step explanation:
-4y-8-6y+18=12
-10y=12+8-18
Y=-1/5
What’s the answer??????
Answer: -50
Step-by-step explanation: (5-10) then multiply the answer by 10
PLZZ HELP WILL GIVE BRAINLIEST
Answer:
x=2 y=4
Step-by-step explanation:
Answer:
(2,4)
Step-by-step explanation:
substitute the [tex]y = 2x[/tex] for the [tex]y[/tex] in [tex]x = -y + 6[/tex]
[tex]x = -(2x) + 6[/tex]
[tex]x = -2x + 6[/tex]
[tex]3x = 6[/tex]
[tex]x = 2[/tex]
next take [tex]x = 2[/tex] and input it into [tex]y = 2x[/tex]
[tex]y = 2(2)[/tex]
[tex]y = 4[/tex]
so if [tex]x =2[/tex] and [tex]y = 4[/tex], the ordered pair solution is:
[tex](2,4)[/tex]
Diane left her house and traveled at a constant rate of 55 miles per hour for 4 hours. How far did she travel?
Answer:
220 miles
Step-by-step explanation:
55 x 4 = 220 miles
Answer:220
Step-by-step explanation:
55×4=20
A teacher polled her students and determined 37 liked math and 44 liked history.
She has a total of 180 students. If there are 3000 students in the whole school. How
many students could you infer like something other than math and history.
Answer:
I’m pretty sure it’s 2919 students
Step-by-step explanation:
Ok 37-math
44-history
180 total students
99 students in the total didnt like them
3000 students in school.
-180
2919 students
What is the product (x-3)(x+8), expressed as a trinomial?
A. x^2+8x-24
B.x^2-3x-24
C.x^2+5x-24
D.x^2-11x-24
Help -
Can somebody plz help answer these questions correclty (Like what the letters equal) thanks :D
WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST :DD
Answer:
20. multiply both sides by 4, x= 24
21. multiply both sides by 7, y=21
22.multiply both sides by 5, z=20
23. multiply both sides by 6, p=12
24. multiply both sides by 2, r=8
Step-by-step explanation:
you want to get the variable alone (x,p,y, etc).
so if you are dividing the variable by a number you want to take the denomentator and multiply it by itself and then you have to multiply the same number to the number on the other side of the equation.
Find Sin D and sin E! Write the answer as a fraction and as a decimal. Round to four decimal places, if necessary! Please help me!
Answer:
sine D = 0.9459
sine E = 0.3243
Step-by-step explanation:
Mathematically, sine is the ratio of the opposite to the hypotenuse
The hypotenuse is the longest side and we have it as 37 in the diagram given
the opposite to angle E is 12
So the sine of E = 12/37 = 0.3243
For D , its opposite is 35
The sine of D = 35/37
sine of D = 0.9459
Which expression is the same as 9÷4?
Answer:
4x2.25
Step-by-step explanation:
mark brainliest please
how much does one cup of coffe cost? 8 cup of coffe for $28
Answer:
it cost rs 3.5 dollar thank you
Amos scored 100 points while playing 3 rounds of a game.
Points
Round 1 - 30
Round 2 - 25
Round 3 - ?
Total - 100
How many points did he score in round 3?
Complete the steps to solve the problem.
1. What do you need to solve for this problem? Choose a variable to represent this unknown value.
2. Using the variable you chose, write an equation to represent this situation. (Hint: You may want to put the number of points in each round on one side and the total number of points on the other.)
3. Solve this equation to find how many points Amos scored in round 3. Show your work.
1. We can subtract the scores of the first and second rounds from the total score to obtain the score in the third round.
2. An equation including a variable to solve would be x + 30 + 25 = 100.
3. By solving the equation we obtain Amos scored 45 points in the third game.
What is a numerical expression?A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.
From the given information the score for her third round would be,
= (100 - 30 - 25).
= 100 - 55.
= 45.
Another way to solve this problem is assuming Amos scored 'x' in the third game.
Therefore, (30 + 25 + x) = 100.
55 + x = 100.
x = 100 - 55.
x = 45.
learn more about numerical expressions here :
https://brainly.com/question/29199574
#SPJ1
Solve the inequalities by graphing. Select the correct graph. y> X y<-X
Answer:
i think is y>X
Step-by-step explanation:
Help!!! Please help me I need help on my homework!
Answer:
Using the law of indices
5 X 5^-3
5^1-3
5^-2
Evaluate the expression for the given value of x.
f(x) = { (2)" ; x = 0
Answer:
2
Step-by-step explanation:
substitute the given value into the function and evaluate
* A Frog sits on a number line at point −10. It is allowed to make up to 4 jumps. First, it can make a jump of 8 units in either direction, or it can skip this jump. Then, it can make a jump 4 units long or skip this jump. Then, it can make a jump 2 units long, or skip this jump. And, finally, it can make a one-unit jump or skip it. Where can it be at the end? Answer: The possible numbers where frog could be are from
Answer and explanation:
Assuming the frog jumps from -10 for all jumps, if the frog decides to make all 4 jumps then :
8 units jump= -2 or -18
4 units jump= -6 or -14
2 units jump= -8 or -12
1 unit jump = -9 or -11
If the frog decides to make one jump then skip the others then:
Either it makes 8 units jump= -2 or -18
Or 4 units jump= -6 or -14
Or 2 units jump= -8 or -12
Or 1 unit jump = -9 or -11
If it decides to make 2 jumps and skip the others then:
Either it makes 8 units jump= -2 or -18
and 4 units jump= -6 or -14
Or 2 units jump= -8 or -12
and 1 unit jump = -9 or -11
Or any other mix of units of jump twice
If it decides to make 3 jumps and skip the others then:
Either it makes 8 units jump= -2 or -18
and 4 units jump= -6 or -14
and 2 units jump= -8 or -12
Or 1 unit jump = -9 or -11
and 4 units jump= -6 or -14
and 2 units jump= -8 or -12
Or any other mix of 3 jumps
If it decides to make no jump at all then the frog would remain at -10
mmmmmm u should help -9/14+ 2/7
Answer:
0.9285714285714 is the answer.....Someone please help me will mark BRIANLIEST
plz help i will give brainliest
Answer:
113°
Step-by-step explanation:
53+6+8= 67
180-67=113
riddle: there are 10 copy cats in a window how much are left. Cation this is math!!!
Answer:
20 cats
Step-by-step explanation:
ez lol
Answer:
i dont know 10
Step-by-step explanation:
Eva is picking fruit at a farm. The fees are $5 for entry to the farm, $2.50 per pound of blueberries, and $2 per pound of apples she picks to take home. Let b be the number of pounds of blueberries and a be the number of pounds of apples Eva picked. Which of the following expressions could represent how much Eva pays?
5(2.5b + 2a)
(2.5 + 2)(a + b) + 5
2.5b + 2a + 5
5 + 2.5a + 2b
Answer:
2.5b+2a+5
Step-by-step explanation
Answer:
The third choice or 2.5b+2a+5
Step-by-step explanation:
your welcome!
Which does NOT represent the interior angle measures of a triangle?
O A. 5°, 75°. 100°
B. 10°,80°, 90°
OC. 20°, 60°, 100
O D. 45°, 45°, 45.
ос
E 50°, 509,80"
Answer:A
Step-by-step explanation:
Interior angles of a triangle ALWAYS have to be equal to 180
The sum of A is 180, however, those angles wont work because they have to be more close to eachother for it to be possible
The Triangle Inequality Theorem states the longest side must be shorter than the sum of the other 2 sides
Andy is buying a car
he negotiated a 7% decrease on a £6 500 car
he will pay the full balance in 12 equal month payments
calculate the amount paid each month
Answer:
£503.75 per month
Step-by-step explanation:
7% decrease on a £6,500 car
= 7% of 6,500
= 7/100 * 6,500
= 0.07 * 6500
= £455
Amount of the car = £6,500 - £455
= £6,045
he will pay the full balance in 12 equal month payments
Amount paid each month = £6,045/12 months
= £503.75 per month
Answer:
7% decrease on a £6,500 car
= 7% of 6,500
= 7/100 * 6,500
= 0.07 * 6500
= £455
Amount of the car = £6,500 - £455
= £6,045
he will pay the full balance in 12 equal month payments
Amount paid each month = £6,045/12 months
= £503.75 per month
Step-by-step explanation:
Hello, if you know the answer, please explain how you got the answer to this
Answer:
b
Step-by-step explanation:
because the bottom part of the triangle shrunk by 4
Which values for x, y, and z satisfy the equation 7xy/z=28
Answer:
try x= 4z/y
Step-by-step explanation:
In a bag there are blue sweets, red sweets and yellow sweets. The number of blue sweets is four times the number of yellow sweets. The number of red sweets is half the number of yellow sweets. Find the percentage of sweets in the bag that are yellow.
Answer:
18.18%
Step-by-step explanation:
The percentage of sweets in the bag that are yellow is as follows:
Let us assume the number of yellow sweets be x
So for number of blue sweets be 4x
And, the number of red sweets be 0.5x
So it could be written as
Blue Red Yellow
4 0.5 1
8 1 2
So for yellow, the percentage is
= 2 ÷ (8 + 1 + 2)
= 2 ÷ 11
= 18.18%
9) using opposite operations, solve for m
4m+8=12
Answer: 1
Step-by-step explanation:
4m + 8 = 12
=> 4m = 4
=> m = 1
Answer:
Subtract 8 from both sides now your left with 4m and 4. Divide 4 from both sides to get 1. 1 is your answer
o curso de inglês de Carolina teve duração de 4 semestres e 2 meses . quantos tempo durou esse curso de Carolina ?
a 26 meses
b: 24 meses
c : 22 meses
d: 20 meses
Answer:
a 26 meses gracias por los puntos
What is the equation of the horizontal line passing through (3, 8)?
Answer:
Y= -5
Step-by-step explanation:
If y always equals -5 then the x value will change but the y value will not. This means that the slope of the line is zero and will be parallel to the x axis, which is the horizontal line.
hii pls help me if u can tysm
Answer:
she hit the flo'
next thing yk
shawdy got
low
low
low
low
low
low
low
Step-by-step explanation:
write the equation of a line in slope-intercept form that has a slope of 5/3 and passes through the point (6,7)
Answer:
y=5/3x+-3
Step-by-step explanation: