Answer:
y = 7 - 5x
Step-by-step explanation:
20x + 4y = 28
4y = 28 - 20x
y = 28/4 - 20x/4
y = 7 - 5x
-TheUnknownScientist
Evaluate the function.
f(x) = 3x² + 2
Find f(-7)
149 because
3(-7)^2+2 =149
what is 17 - (-12)=
who knows the answer please help
Answer:
The answer is "29".
Step-by-step explanation:
17 - ( -12) =
17 + 12 =
= 29
Answer:
The answer is 29
Step-by-step explanation:
the answer is 29
The graph of a system of equations is shown below. Which system of equations represents the graph?
A.y = 3x - 5
y = -1/2x + 2
B.y = 2x - 5
y = -1/2x + 2
C.y = 3x - 5
y = -2x + 4
D.y = 2x - 5
y = -2x + 4
do videos give mastary on khan?????????????????
Answer:
No they are only there so u can understand and answer the questions
Need help asap please
Answer:
c = 5
Step-by-step explanation:
IT'S THE THREE FOUR FIVE TRIANGLE!!
3^2 + 4^2 = c^2
√25 = c
c = 5
Answer:
The formula to use is the pythagorian theorum.
Step-by-step explanation:
That is a²+b²=c²
Take the square of both sides. then add them together. Then take the square root. You should get 5
CD=______x CG fill in the blank
Answer:
GD
Step-by-step explanation:
sum one help me like frr
Answer:
The first one is correct.
Step-by-step explanation:
The number of shelves depend on the number of trophies there are.
Answer:
t = independent
s = dependent
For the number of trophies her son has will be the number of shelves she will build for the trophy case.
Hope this helps :)
3. The easily accessible part of an emergency fund is
cash
credit cards
savings
CDs
Answer:
Saving ...................
Am emergency fund are money kept or set aside incase of unforeseen circumstance and unforeseen expenses or expenses that are not plan for.
Saving is important as saving is the easily accessible part of emergency fund reason being that you can easily take from the money you already save in case of unforeseen expense and this prevent you from having to borrow.
Inconclusion the easily accessible part of an emergency fund is : savings.
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Rewrite in simplest terms: -4(5v – 3v – 6) – 9v
Answer:
-4 (5v -3v -6) -9v (use the distributive property)
-20v +12v +24 -9v (combine all like terms)
-17v +24
Answer:
-17v + 24
General Formulas and Concepts:
Pre-Algebra
Distributive PropertyAlgebra I
Combining Like TermsStep-by-step explanation:
Step 1: Define Expression
-4(5v - 3v - 6) - 9v
Step 2: Simplify
Combine like terms (v): -4(2v - 6) - 9vDistribute -4: -8v + 24 - 9vCombine like terms (v): -17v + 24A PlayStation 5 cost $789.99. Sales tax is 8%. How much will you pay in sales tax?
Answer:
63.20
Step-by-step explanation:
Because you do 8% of 789.99 which equals 63.20
Answer:
6.31 sales tax
Step-by-step explanation:
1. make 8% in a decimal
.008
2. multipy the numbers
789.99 ×.008=6.31
hopefully this is right haven't done this math in 2 years
have a good day
Jackson has $20 in his account. He uses a credit card to spend $30 on a coat and $10 on a movie. Jackson then deposits $50 into his account. How much will Jackson have left after he pays the credit card bill?
Answer:
$30
Step-by-step explanation:
Step one:
Jackson has $20 in his account
He uses a credit card to spend $30 and $10
total credit owed is $40
Required
His account balance after debt payment
Step two:
his balance will be = 20-40= -$20
Jackson then deposits $50 into his account
His new balance will be
-20+50= $30
Hesperia Community center is buying new seating for their building. They want to purchase a combination of stools and chairs. Stool cost $15 and chairs cost $25. The center cannot spend more than 1500. Which inequality represents all possible combinations of s stools and c chairs? A. 15s + 25c < 1500 B. 15c + 25s > 1500 C. 15c + 25s < 1500 D. 15s + 25c < 1500
Answer:
I just finished taking the test and the answer is 15s + 25c ≤ 1500
I need to find x and y
Answer:
y = 131
x = 65
Step-by-step explanation:
y + 6 = 137
y = 131
360 - 137(2)
= 360 - 274
= 86
x + 21 = 86
x = 65
I need help pls answer right and don't just pick an answer again pls help.
Answer:
-4
Step-by-step explanation:
It the slope hits the y axis, that number will be the y intercept
using the smallest number of pebbles possible and without using blue pebbles, what is the value in pebbles of 2 blue pebbles?
According to the combination, The value of the Two blue pebbles is a 3 red pebbles and 1 yellow pebbles.
According to the statement
We have to find that the value of the combination.
So, For this purpose, we know that the
A combination could be a mathematical technique that determines the quantity of possible arrangements in an exceedingly collection of things where the order of the choice doesn't matter.
From the given information:
A red pebble is capable 3 yellow pebbles. A blue pebble is adequate a red pebble and a couple of yellow pebbles. Therefore, the blue pebbles will be:
= 3 yellow pebble + 2 yellow pebbles
= 5 yellow pebbles or 15 red pebbles
And
Two blue pebbles will be:
= 10 yellow pebbles
= 3 red pebbles and 1 yellow pebbles.
So, According to the combination, The value of the Two blue pebbles is a 3 red pebbles and 1 yellow pebbles.
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Disclaimer: This question was incomplete. Please find the content below.
Question:
A red pebble is equal to 3 yellow pebbles A blue pebble is equal to a red pebble and 2 yellow pebbles. A green pebble is equal to 3 red pebbles
Using the smallest number of pebbles possible and without using blue pebbles, what is the value in pebbles of 2 blue pebbles?
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What is 5 perecnt of 15,948
Answer:
797.4
Step-by-step explanation:
Hope this Helps! :p
Answer:
Step-by-step explanation:
5 % of 15948
(15948*5)/100= 797.40
LuAnn is playing a math game. She chooses three cards. The value of each of her cards is shown. • First card: -12 • Second card: 3 •Third card: -5 What is the sum of the values of LuAnn’s three cards?
Answer:
4
Step-by-step explanation:
maybe because negative cancells a positive
A rectangle has a length of 72 cm and a width of 56 cm. The other rectangle has the same area as this one, but its width is 21cm. Find the constant of the variation.
Answer: I think it’s 4032
Step-by-step explanation:
Can someone help me? I hate geometry. God!!!
The solution to a problem is an irrational number. Which statement is true about the solution
A. It can be expressed as a non repeeating, non terminating decimal.
B. It can be a perfect square
C. It cannot be pie
[tex]\pi[/tex]
D. It is not possible to have a irrational number solution.
Answer:
A. It can be expressed as a non repeating, non terminating decimal.
Step-by-step explanation:
Irrational numbers are numbers with a decimal that goes on forever.
The decimal also never repeats, for the entirety that it goes on.
Since the solution is an irrational number, this means that the solution can be expressed as a non-repeating and non-terminating decimal.
So, A is the correct answer.
Answer: a
Step-by-step explanation: i agree with rocco 908
WILL GIVE BRAINLIEST! Find the equation of a line that passes through (-5,-2) and the intersection of the lines x+3y=0 and 4x-4y-13=0
Answer:
y + 2 = -0.069(x-+5)
Step-by-step explanation:
SInce the two lines intersects, we will equate it
Multiply x + 3y = 0 by 4;
4x + 12y = 0
4x-4y-13 = 0,
Subtracts both
12y +4y + 13 = 0
16y = 13
y = 13/16
get x;
x + 3(13/16) = 0
x = -39/16
The point of intersection is (0.8, -2.4) and (-5,-2)
Get the equation;
m = y2-y1/x2-x1
m = -2+2.4/-5-0.8
m = 0.4/-5.8
m = -0.069
Get the equation;
y - y0 = m(x-x0)
y - (-2)= -0.069(x-(-5))
y + 2 = -0.069(x-+5)
Find the value of X please
Answer:
x=2/3
Step-by-step explanation:
6x+6=10
Do I write like the measurements? I don’t get this question someone help pls
Answer:
Milk - 3 cups
Eggs - 2
Self-Raising Flour - 4 cups
Caster Sugar - 2/3 cup
Melted Butter - 50g
Step-by-step explanation:
The question asks for the quantity of each ingredient needed to make 24 pancakes. The recipe we are given makes 12 pancakes.
To figure out our proportions, we can divide the number of pancakes we need to make by how many the recipe makes.
24/12 = 2
This tells us that we will need to double the quantity of each ingredient in the recipe to make 24 pancakes.
1.5 · 2 = 3 cups of milk
1 · 2 = 2 eggs
2 · 2 = 4 cups of self-raising flour
1/3 · 2 = 2/3 cup of caster sugar
25 · 2 = 50g of melted butter
What is the slope of the line that passes through the points -16,0 and -8,2?
Answer:
1/4
Step-by-step explanation:
0 - 2 = -2
-16 - -8 = -8
-2/-8 = 1/4
The ratio of boys and girls in a class is 4:7. If there are 44 students in the
class, how many more boys should be enrolled to make the ratio 1: 1?
Answer:
12
Step-by-step explanation:
4:7
4x+7x=44
11x=44
x=4
16 boys and 28 girls
28-16
12
Hope this helps plz hit the crown ;D
12 boys should be enrolled to make the ratio into 1 : 1
What is a ratio?'A ratio is a mathematical expression written in the form of a : b, where a and b are any integers. It expresses a fraction.'
According to the given problem,
Given ratio = 4:7
Total number of students = 44
Let the unknown integer multiplier be x,
⇒ 4x + 7x = 44
⇒ 11x = 44
⇒ x = 4
Number of boys = 4 × 4
= 16
Number of girls = 4 × 7
= 28
Therefore number of boys to be enrolled = 28 - 16
= 12
Hence, we can conclude, 12 boys should be enrolled with the already enrolled 16 so as to make boys : girls as 1 : 1.
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Compare the square root of one hundred forty and one hundred three ninths using <, >, or =.
The square root of one hundred forty > the square root of one hundred three ninths
In this question, we need to compare the square root of one hundred forty and the square root of one hundred three ninths.
We write the square root of one hundred forty as,
√(140)
The value of the square root of one hundred forty is,
√(140) = 11.8 ..............(1)
We write the square root of one hundred three ninths as,
√(11.44)
The value of the square root of one hundred three ninths is,
√(11.44) = 3.4 ...................(2)
From (1) and (2),
11.8 > 3.4
i.e., the square root of one hundred forty is greater than the square root of one hundred three ninths
Therefore, the square root of one hundred forty > the square root of one hundred three ninths
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subtract 3x^2 7x-43x 2 7x−43, x, squared, plus, 7, x, minus, 4 from 8x^2-6x 28x 2 −6x 28, x, squared, minus, 6, x, plus, 2.
The result when we subtract 3x^2 + 7x - 4 from 8x^2 - 6x + 2 is 5x^2 - 13x + 6.
Subtracting polynomials is a method of subtracting polynomials by converting the signs to the opposite sign. It is done in two methods - vertically and horizontally.
Using the method in subtracting polynomials horizontally:
Step 1: Arrange the polynomials in their standard form.
Both 3x^2 + 7x - 4 and 8x^2 - 6x + 2 are in their standard form(exponents in decreasing order)
Step 2: Place the polynomial next to each other horizontally.
(8x^2 - 6x + 2) - (3x^2 + 7x - 4)
Step 3: Distribute the negative sign to the second polynomial.
(8x^2 - 6x + 2) - 3x^2 - 7x + 4
Step 4: Combine the like terms and arrange them in decreasing order.
8x^2 - 3x^2 - 6x - 7x + 2 + 4
Step 5: Perform the calculations.
5x^2 - 13x + 6
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Solve the Expression
8g + 5 - 2r, g = 5, r = 12
Answer:
21
Step-by-step explanation:
First at all you replaced:
8(5) + 5 - 2(12)
40 + 5 -24
21
Lou and Jacob each sold 200 pieces of jewelry. If 20% of Lou's sales were rings, and Jacob sold 35 rings, who sold more rings?
Answer:
Lou sold 5 more rings because 20% of 200 is 40
Step-by-step explanation:
Maritza says that the number y is equal to 2 more than 3 times x. Which of the following equations could be used to find the value of y.
Answer:
C
Step-by-step explanation: