Answers
Answer:
[tex]-9x-10y=12 \ -----(1)\\\\-3x+3=y \ ------(2)\\\\substitute \ y \ in \ (1)\\\\-9x -10(-3x+3) =12\\\\-9x+30x-30=12\\\\21x= 12+30\\21x=42\\x=2\\\\\\substitute \ x \ in \ (2)\\-3\cdot 2+3=y\\-6+3=y\\y=-3[/tex]
x= 2, y = -3
Just substitute the value of y into the first equation add like terms and solve
Related Questions
4. A punch recipe that serves 24 people calls for 4 liters of lemon-lime soda, 2 pints of sherbet, and 6 cups of ice.
Answers
For 12 people, the identical recipe that would serve this amount would be 2 liters of lemon-lime soda, 1 pints of sherbet, and 3 cups of ice.
To figure out the corresponding proportion from 24 servings to 12 servings, first we divide 24 by 12, which is 2. The number 2 represents how many times bigger
Which point on the grid have they NOT explored?
A.
(3, -3)
B.
(-2, -2)
C.
(0, 3)
D.
(-3, 1)
Answers
Answer:
D
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
i need this fast sooo help meee
Answers
Answer:
1) 366
2) 448
3) 748
Step-by-step explanation:
[tex]SA_1 = 2(lw + lh + wh) = 2(13 * 9 + 13 * 3 + 9 * 3) = 2(117 + 39 + 27) = 2 * 183 = 366[/tex]
[tex]SA_2 = 2(lw + lh + wh) = 2(20 * 4 + 20 * 6 + 4 * 6) = 2(80 + 120 + 24) = 2 * 224 = 448[/tex]
[tex]SA_3 = 2(lw + lh + wh) = 2(16 * 14 + 16 * 5 + 14 * 5) = 2(224 + 80 + 70) = 2 * 374 = 748[/tex]
The volume of this cylinder is 32π yd2. Find the height.
Answers
4 inches.
Explanation:
The formula for volume of a cylinder is:
V=πr2h
Since we know the volume and the height of the can, we can determine the radius.
32
π
=
π
r
2
×
2
Cancelling the similar terms on either side, we get.
32
π
=
π
r
2
×
2
32
=
r
2
×
2
Divide both sides by
2
.
16
=
r
2
Square both sides, remembering that the result has to be a positive integer.
4
=
r
Hence the radius of the cylindrical can is
4
inches.
.
pleasee help w all of them
1. which value makes this inequality TRUE? x - 12 ≥ 8
a) 4
b) 8
c) 12
d) 20
2. the goalie for a hockey team has faced no more than 40 shots on goal (s) this season. which inequality represents this situation?
a) S < 40
b) S > 40
c) S ≤ 40
d) S ≥ 40
3. which inequality is TRUE?
A) |-25| < |-11|
B) |-20| < 13
C) |17| > |-20|
D) |-14| > |-15|
Answers
Answer:
12, S>40, |17| > |-20|
Step-by-step explanation:
Answer:
x>_20
s<_40
ans of 3rd is D
Step-by-step explanation:
Hey yalll? Any of you good at math!
Answers
A 5
B 20
C 50
8 15
9 5.2
10 9
7a
c²=a²+b²
c²=3²+4²
c²=9+16
c=25
c=5
7b
c²=a²+²
c²=12²+16²
c²=144+256
c²=400
c=20
7c
c²=a²+b²
c²=14²+48²
c²=196+2304
c²=2500
c=50
8.
c²=a²+b²
17²=8²+b²
17²-8²=8²-8²+b²
289-64=b²
225=b²
15=b
9.
c²=a²+b²
6²=a²+3²
6²-3²=a²
36-9=a²
27=a²
5.196=a
5.20=a
10.
c²=a²+b²
15²=a²+12²
15²-12²=a²
225-144=a²
81=a²
9=a
11.
The formula for finding the diagonal of a square is d=s√2
d=s√2
d=(7)√2
d=7√2
d=(7)(1.414)
d=9.898
d=9.9
I really don't know how to do this-
Answers
The sum of the interior angles of any quadrilateral is 360°.
So,
90° + 90° + 52° + x = 360°
=> 232° + x = 360°
=> x = 360° - 232°
=> x = 128°
Answer:
x = 128
Step-by-step explanation:
All angles on a trapezoid must add up to 360 degrees. So we have 3 of our 4 angles so we can solve this as an equation
90 + 90 + 52 + x = 360
232 + x = 360
x = 128
(THIS IS 6TH GRADE MATH) I need help on number 7 and 10
Answers
Amanda bought new shoes and she received a 25% off discount. If the discount was $17, what was the original price of the shoes? Show like actual work instead of a long explanation pls
Answers
Answer:
68
Step-by-step explanation:
You have $814 that you want to share equally between 5 charities.
To start, you divide the money so that each charity gets a $100 bill.
What is the most useful next step?
A.Take away the remaining three $100 bills because they cannot be divided.
B.Add 3 hundreds plus 1 ten plus 4 ones to get the answer.
C.Trade in each remaining $100 bill for $10 bills and try to divide those.
D.Add two more $100 bills so you can divide by 5.
Answers
If you guys help me with this ill make a free coin giveaway soon. with 40 points. (Making a part two btw. check my account for it.)
Answers
2. 5(d+1) is multiplication. you have to multiply the outside number to the inside ones. So 5*d would be 5d and 5*1 is 5 so 5d+5
3. 3x+9=6x
-3. -3
6-3= 3
9/3=3
Find the side length of the shaded
square.
Answers
A store is having a 20% off sale. Find the sale price of a video game system that regularly costs $249.99
Answers
Answer:
A.200
Step-by-step explanation:
Urgent!!!
Use the numbers and units from the list to find as many equivalent measurements as you can.
For example, you might write “30 minutes is 1/2 of an hour.” You can use the numbers and units more than once.
Numbers: 1, 12, 0.4, 60, 50, 1/2, 40, 0.01, 3 1/3, 30, 0.3, 24, 1/5, 6, 2
Answers
Answer: Hi
Step-by-step explanation: not sure
Which of the expressions below is equal to 4x+12? Select all that apply.
A) 3x+8+x+4
B) 2x(x+6)
C) 4(x+3)
D) 2(2x+6)
Answers
Answer: a, c and d
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
trust me
A _____________of a number is one of its two equal factors.
Square Root
Perfect Sqaure
Enter Value.
Answers
Answer:
Square root.
Step-by-step explanation:
4 * 4 = 16
4 is the square root of 16.
What is the surface area of the prism? Measurements are the length is 6cm the width is 4cm and the height is 9cm
Type number and unit (the unit can be in words).
Answers
Answer:
228
Step-by-step explanation:
is it a rectangle prism?
if so, do This:
2(lb+hb+hl)
Length - 6
width = 4
height = 9
2(24+36+54)
2 ( 114)
= 228
I hope this helps!
Item 2
Find the LCM of 35 and 15
Answers
Answer:
Its 35
Step-by-step explanation:
what are all multiples of 6 and 9 up to 50
Answers
Answer:
for 6 6,12,18,24,30,36,42,48 for 9 9,18,27,36,45
Step-by-step explanation:
9,18,27,36,45,54,63,72,81,90
9x + 9x − 21 = 33
Please solve C:
Answers
Answer and Step-by-step explanation:
For this equation, solve for x.
Combine like terms.
18x - 21 = 33
Add 21 to both sides of the equation.
18x = 54
Divide both side of the equation by 18.
x = 3
x = 3 is the answer.
#teamtrees #PAW (Plant And Water)
Last night Danielle had a birthday party. 1/3 of the birthday cake was leftover. She wanted to share the leftover birthday cake with 4 friends the next day. How much of the birthday cake would each get if they shared it equally?
Answers
Answer:
1/12
Step-by-step explanation:
You need to multiply 1/3 by 1/4 (it is 1/4 because it is 1 friend out of 4 friends). After you do that you should get 1/12. So each friend will get 1/12 of the cake.
Answer:
1/12
Step-by-step explanation:
1/3 divide by 4.
1/3 x 1/4 = 1/12
19. Write an essay: 3 to 4 sentences (about) I WILL brainliest ;)
When baking a cake, you have a choice of the following pans:
a round cake pan that is 2 inches deep and has a 7-inch diameter
a 6-inch × 9-inch rectangular cake pan that is 2 inches deep
Which of these pans has the larger volume? Justify your answer.
Note: Don't answer if it won't be helpful pls, I will report. Thx to all the people who try to make Brainly what it is.
Answers
Answer:while baking a cake it is best to use a round pan if you are going to have the a 7-inch diameter
Step-by-step explanation:
please help will give brainliest
Answers
Answer:
I think the 9 is correct.
Step-by-step explanation:
Answer: c = √41
Step-by-step explanation:
4^2 + 5^2 = c^2
16 + 25 = c ^2
41 = c^2
c = √41
Lewis directs the school marching band. He uses scale drawings of the football field to design marching formations for the band. The football field is 100 yards long and yards wide. Lewis always uses a scale of 1 inch to 10 yards for his drawings.
Complete the steps below to find the length and width of the football field as it appears in one of Lewis’s scale drawings.
Part A
What is the actual area of the football field? Assume that the field is shaped like a rectangle.
The length of the football field is 100 yards. The width of the field is 53 1/3 yards.
The area of a rectangle is length × width:
area = length * width
= 100 yd. * 53 1/3 yd.
= 5,333 1/3 sq. yd.
The area of the football field is 5,333 1/3 square yards.
Write a ratio to represent the scale used in the drawing.
Answers
Answer:
5,333 1/3
Step-by-step explanation:
The length of the football field is 100 yards. The width of the field is 53 1/3 yards.
The area of a rectangle is length × width:
area = length * width
= 100 yd. * 53 1/3 yd.
= 5,333 1/3 sq. yd.
The area of the football field is 5,333 1/3 square yards.
i thought it was if question but it is just 9
Answers
Answer:
17-d=5
Step-by-step explanation:
Hope this helps :)
17-D=5
HEEELLLLPP!!!!!!!!!! Please help i hate algebra this is so confusing!!!!
I know that the answer is B, 60. But I need to know how i got to that answer. Please help i am so confused.
The function f(x) = –(x – 20)(x – 100) represents a company’s monthly profit as a function of x, the number of purchase orders received. Which number of purchase orders will generate the greatest profit? *
Answers
Answer:
Explanation is the answer
Step-by-step explanation:
The max happens at the vertex. The line of symmetry runs through the vertex. So if you have the x-intercepts of the graph, the axis of symmetry will be the same distance from them but on opposite sides of the axis of symmetry. So if you have the x-intercepts then you can average them to fnd the x-coordinate of the middle point, the vertex.
So your factored form says the x-intercepts are (20,0) and (100,0).
So the x-coordinate of the vertex is (20+100)/2=120/2=60.
The question is asking for x-coordinate of the vertex so we are done.
Answer:
the other guy who answered is correct
Step-by-step explanation:
Someone please help ASAP! ITS DUE TODAY! Will give BRAINLIEST a to the person that gives a correct answer and explanation.
Answers
Please help, no links or you're getting reported
What is the slope? Make sure your answer is simplified, if necessary.
Answers
The second graph slope is -1/3
The third graph slope is 3/4
What is the scale factor?
Answers
Answer:
the scale factor is 2
Step-by-step explanation:
Please solve; d=√(x₁ – x₂)² + (y₁ – y₂)²
Answers
Answer:
$%):)))))) thanks. please i need one brainliest lol
Step-by-step explanation: