Answer: x=2 and y=−1
Step-by-step explanation:
5x+7y=3for x:
5x+7y=3
5x+7y+−7y=3+−7y(Add -7y to both sides)
5x=−7y+3
x= −7/ 5 y+ 3 /5
Substitute −7 /5 y+ 3 /5 for x in2x+3y=1:
2( −7/ 5 y+ 3 /5 )+3y=1
1 /5 y+ 6 /5 =1(Simplify both sides of the equation)
1 /5 y= −1 /5
y=1
Substitute −1 for y in x
−7 /5 y+ 3 /5 : x=
x=2
x=2(Simplify both sides of the equation)
Keisha found three pieces of cable in her tool drawer. Here are their lengths (in meters).
4.9, 10, 14.94
What is the total length of the three pieces?
Answer:
29.84
Step-by-step explanation:
4.9+10+14.94
4.9+10=14.9
14.9+14.94=29.84
The graph shows the relationship between a sphere's radius and volume.
Select all the statements that are true about the relationship.
Group of answer choices
If the radius doubles, the volume doubles.
If the radius doubles, the volume becomes about 4 times bigger.
If the radius doubles, the volume becomes about 8 times bigger
The relationship is linear.
The relationships is not linear.
Answer:
C and D
Step-by-step explanation:
Answer:
C and e
Step-by-step explanation:
someone pls help :( I’m very confused
Answer:
ok look if you can get me a new pic then i well love to help you but i cant see what that is im so sorry but new pic and well love to help you
Step-by-step explanation:
Find the measure of the indicated angle to the nearest degree
Solve this system by substitution, y = 1 -3x - 4y = 14 *Remember to write your answer as a coordinate point (x, y). 1
HELPPPP PLEASEEEEEE HELP ME
Find the circumference of the circle. Use 3.14 for . Round to the nearest hundredth, if necessary.
12.5 in.
The circumference of the circle is about
inches.
Answer: i got 78.54
rounded is 78.5
hope that helps
Convert 7/11 to a percent. Round the answer to the nearest hundredth.
Answer:
Step-by-step explanation:
7/11 as a percent is 63.64% rounded to the nearest hundredth. 7÷11*100=63.64
Plz help guys I need help
MATH!!!!!!!!!!! OVER HERE / At the beginning of March, a store bought a Halloween mask at a cost of $10 and marked it up 60%. At the end of the month, the Halloween mask had not sold, so the store marked it down 40%. What was the discounted price?
Answer:
9.60
Step-by-step explanation:
100%->10
160%->16
-------------------------------------
100%->16
100%-40%=60%
60%->9.60
Help me with Question 4
Answer:
a
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
This is cause the phrase two thirds refrences as two of three which is a fraction.
Eight figures are below. Which ones are convex polygons?
Type your answer as a list, separated by commas. For example, if you believe A, B, and C are convex polygons, type A, B, C.
Please help me with the answer, I'm stuck!
Answer:
A,C,D.
Step-by-step explanation:
According to the definition of Convex polygon :
The figures shows the convex polygon are : A, C, D and F
A polygon is called a convex polygon when no line segments between the points, goes inside. The boundaries of the convex polygon do not go inside and all the vertices are pointed outside away from the center.
The interior angles of a convex polygon are less than 180°. Regularly, a polygon is firmly convex, if each line segment with two nonadjacent vertices of the polygon is strictly internal to the polygon but on its endpoints. Each non-fragment triangle is definitely convex.
Learn more about Convex polygon at:
https://brainly.com/question/9223125
#SPJ2
If 4x- 7 = 2x, then 2x = ?
If [tex]4x-7=2x[/tex], then [tex]2x=7[/tex].
Hope this helps.
Answer:
7
Step-by-step explanation:
We solve for x first.
So: 4x - 7 = 2x
Subtract 2x from both sides: 4x - 2x - 7 = 2x - 2x
2x - 7 = 0
Add 7 to both sides: 2x - 7 + 7 = 0 + 7
2x = 7
Divide by 2: [tex]\frac{2x}{2}[/tex] = [tex]\frac{7}{2}[/tex]
x = [tex]\frac{7}{2}[/tex]
Now, we substitute x for [tex]\frac{7}{2}[/tex] like this:
2 ( [tex]\frac{7}{2}[/tex]) = 7
A party mix is made by adding nuts that sell for $2.50 per kg to a cereal mixture that sells for $1 per kg. How much of each should be added to obtain 40 kg if a mix that will sell for $1.30 per kg?
Answer:
40kg
Step-by-step explanation:
x + y = 60, y = 60 - x
x(2.50) + y(1) = 60(1.50)
Substitute:
2.50 x + 60 - x = 90
1.50x = 30
x = 20 kg
y = 40 kg
PLEASE ANSWER THIS ALSO!!!
Answer:
Option A & B
Step-by-step explanation:
Total cost of the flat = Rs. 4.25 lakh
Amount already paid = Rs. 2.5 lakh
Remaining amount to be paid =
4.25 - 2.5 = 1.75 lakhs or 1,75,000
Help and explain
==================
Answer:
7 feet = d
Step-by-step explanation:
C = π * d
C = circumference
π = Pi
d = diameter (the distance from the edge through the center to the opposite edge.)
C = π * d
21.98 = 3.14 * d
3.14 3.14
7 feet = d
If f(x) = -22 - 2x -1, then f(x+1) = -x? - 2x - 4?
Answer:
f(x+1) = -21 -2x-4
Step-by-step explanation:
Explanation:-
Given that the function f(x) = -22-2x-1
f(x+1) = -22 -2( x+1) -1
= -22 -2x-2-1
= -2x -21 -4
f(x+1) = -21 -2x-4
Question 3
A man earns $3580 per month and spends 65% of it. How many does he save
every month?
$2327
$2237
$1523
$1253
Other:
Answer:
$1253
Step-by-step explanation:
65% of $3580=$2327 spent
$3580-$2327=$1253 saved
Answer:
1253.
Step-by-step explanation:
65% of 3580 is 2327.
3580-2327=1253.
HELP ME PLEASEEE DUE IN 2 MINS
[tex] \frac{ 1}{2 } \: \: and \: \frac{4}{5} [/tex]
Answer:
1.3 meters
Step-by-step explanation:
1/2 + 4/5 = 13/10
13/10 = 1 3/10
1 3/10 = 1.3
Write the improper fraction as a mixed number 1879/12
The answer is 156 7/12. in a mixed number
find the values of x and y
Answer:
x = 60 and y = 60
Step-by-step explanation:
Those are all equilateral triangles with the same angles.
Elizabeth has $72 to spend on painting supplies needed to repaint her house. Rollers
cost $4 each, and paintbrushes are $3 each. She needs at least 15 rollers and
paintbrushes combined and wants at least five of each.
what is clairouts equation
lol,j,bhkgkjhkhkhkhukgiuguk
Answer:
wioajfcskaljfcksjhnfkmdesdn,k obviously
Step-by-step explanation:
pls help lol i will mark brainliest or something
Answer:Option 4
Step-by-step explanation:
Answer:
Option 4
Step-by-step explanation:
24 x 2 - (8+ [tex]4^{2}[/tex]) / 8 - 6
24 x 2 - (8 + 16) / 8 - 6
24 x 2 - 24 / 8 - 6
48 - 24 / 8 - 6
48 - 3 - 6
45 - 6
39
In a bag, there are only black pins, green pins, pink pins and white pins
A pin is taken at random out of the bag
Complete the table
Answer:
P of white: 0.26
P of green: 0.39
Step-by-step explanation:
Assume the probability of a white pin is p.
Then the probability of a green pin is (3/2)p because their ratio is 3:2.
The sum of the probabilities must be 1.
0.1+(3/2)p+0.25+p=1
(5/2)p+0.35=1
(5/2)p=0.65
p=(2/5)(0.65)=0.26
(3/2)p=0.39
Simplify Rewrite the expression in the form x ^ n X^ 2 * x ^ - 12 =
Step-by-step explanation:
Given
[tex] = {x}^{2} \times {x}^{ - 12 } \\ = {x}^{2 - 12} \\ = {x}^{ - 10} [/tex]
Hope it will help :)
Answer:
x^-10
Hope this helps ( :
find the equation of the line containing the points shown
Answer:
y= 6x - 22
Step-by-step explanation:
(4,2) and (5,8)
m= (y2-y1)/(x2-x1)
m= (8-2)/(5-4)
m= 6
y-y1= m(x-x1)
y-2= 6(x-4)
y-2= 6x-24
y= 6x - 22
Mark brainliest pls!
What is the 5 ^ (th) term in the sequence ?
Answer:
the answer is -16
Step-by-step explanation:
n= 5 so 5 - 1 = 4 so it's -1(2)^4 right
2^4 is equal to 16 and then -1(16) = -16
Pls help me bestie with this question ASAP thank you
Answer:
Its B 0.454554555
Step-by-step explanation:
it has a pattern which is repeating. So its known as rational number..