The expression re-written: 3(2) - 4(3)
First, we multiply (PEMDAS)
3 * 2 = 6
4 * 3 = 12
6 - 12 = -6
Answer: - 6
The value of the expression at x = -2 and y = 3 will be negative 18.
What is the value of the expression?When the relevant factors and natural laws of a mathematical model are given values, the outcome of the calculation it describes is the expression's outcome.
PEMDAS rule means for the Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to solve the equation in a proper and correct manner.
The expression is given below.
⇒ 3x - 4y
The value of the expression at x = -2 and y = 3 will be
⇒ 3(-2) - 4(3)
⇒ - 6 - 12
⇒ - 18
The value of the expression at x = -2 and y = 3 will be negative 18.
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The equation 3w + 4j = 39 is used to determine the number of water bottles w and the number of juice bottles j that can be bought for $39. If you purchase 6 bottles of juice, how many bottles of water can you buy?
Juice bottles are J, replace j with 6 in the equation and solve for w:
3w + 4(6) = 39
3w + 24 =39
Subtract 24 from both sides:
3w = 15
Divide both sides by 3:
w = 15/3
w = 5
You can buy 5 water bottles.
Answer:
5
Step-by-step explanation:
The number of water bottles [tex]= w[/tex]
The number of juice bottles [tex]= j[/tex]
We have, [tex]3w + 4j = 39[/tex]
When we purchase 6 bottles of juice, [tex]j = 6[/tex]
So,
[tex]3w + 4j = 39[/tex]
[tex]3w + 4 \times 6 = 39[/tex]
[tex]3w + 24 = 39[/tex]
[tex]3w = 39 - 24[/tex]
[tex]3w = 15[/tex]
[tex]w = \frac{15}{3}[/tex]
[tex]w = 5[/tex]
Therefore, we can buy 5 bottles of water.
14% of 81 is what number?
Answer:
11.34
hope it helps. :)
What is the solution to
−4x+5y=−12
x−6y=22
Answer:
The solution to the system is S= (-2, -4).
Step-by-step explanation:
Given the system
−4x+5y=−12
x−6y=22
The first step is to solve x from the first equation for example, and substitute the expression in the second equation.
1) -4x + 5 y = -12 ⇒ -4x = -12 - 5y ⇒ x = (-12 - 5y)/-4 ⇒ x = 3 + (5/4)y
2) x - 6y = 22 ⇒ (3 + (5/4)y) - 6y = 22 ⇒ 3 + (5/4)y - 6y = 22
⇒ 3 - (19/4)y = 22 ⇒ (-19/4)y = 22- 3 ⇒ y = 19/(-19/4) ⇒ y =-4.
Finally, with the value obtained for "y", you have to return to the original equations and replace it to obtain the "x" value.
-4x + 5y = -12 ⇒ -4x + 5(-4) = -12 ⇒ -4x - 20 = -12 ⇒ -4x = -12 + 20
⇒ -4x = 8 ⇒ x = 8/-4 ⇒ x = -2.
Summarizing, the solution to this system is S = (-2, -4).
Your class started at 12:12PM and ended at 12:50PM. What angle did the minute hand of a watch sweep through during the class?
A. 132
B. 228
C. 153
D. 168
What is 8+w/4 when w =16
Answer:
12
Step-by-step explanation:
8 + w/4
w = 16
8 + 16/4
16/4 = 4
8 + 4
8 + 4 = 12
12
Hey!
------------------------------------------------
Steps To Solve:
~Substitute
= 8 + 16/4
~Solve using PEMDAS
= 8 + 4
= 12
------------------------------------------------
Answer:
[tex]\large\boxed{12}[/tex]
------------------------------------------------
Hope This Helped! Good Luck!
Please I need help?!
Answer:
1a. 460313
1b. 405040
1c. 100000 more
2a. 176960
2b. 12097
2c. 839000
2d. 452210
Step-by-step explanation:
2d. 442210
+ 10000
________
452210
2c. 849000
- 10000
________
839000
2b. 13097
- 1000
_______
12097
2a. 100000
+ 76960
________
176960
1c.
[tex] - 347077 + 447077 = 100000[/tex]
1b.
[tex]300000 + 90000 + 5000 + 40 = 395040 \\ \\ 10000 + 395040 = 405040[/tex]
1a.
[tex] -100000 + 560313 = 460313[/tex]
I am joyous to assist you anytime.
Marisela cut four equivalent lengths of ribbon. Each was 5 eighths of a yard long. How many yards of ribbon did she cut? Express your answer as the sum of a whole number and the remaining fractional units. Draw a number line to represent the problem.
Answer:
[tex]2\frac{1}{2}[/tex] yards.
Step-by-step explanation:
Please find the attachment.
We have been given that Marisela cut four equivalent lengths of ribbon. Each was 5 eighths of a yard long.
To find yards of ribbon cut by Marisela, we will multiply 4 by 5 eighths of a yard (5/8).
[tex]\text{Total ribbon cut by Marisela}=4\times \frac{5}{8}[/tex]
[tex]\text{Total ribbon cut by Marisela}=\frac{4\times 5}{8}[/tex]
[tex]\text{Total ribbon cut by Marisela}=\frac{20}{8}[/tex]
Express answer as the sum of whole number and the remaining fractional units:
[tex]\text{Total ribbon cut by Marisela}=\frac{16+4}{8}[/tex]
[tex]\text{Total ribbon cut by Marisela}=\frac{16}{8}+\frac{4}{8}[/tex]
[tex]\text{Total ribbon cut by Marisela}=2+\frac{4}{8}[/tex]
[tex]\text{Total ribbon cut by Marisela}=2\frac{4}{8}[/tex]
Therefore, Marisela cut [tex]2\frac{4}{8}[/tex] yards of ribbon.
Answer:
CUCUMBER
Step-by-step explanation:
Martinez quilt is made of 6 red square and 18 blue squares. Which ratio compares the number of blue squares to the total number of squares
A) 1:3
B) 3:1
C)1:4
D) 3:4
What is the greatest common factor of 19 and 18?
The greatest common factor of 19 and 18 is 1 since 19 is a prime number and has no other factors that divide 18.
Explanation:The greatest common factor (GCF) of two numbers is the largest number that divides both of them without leaving a remainder. To find the GCF of 19 and 18, we need to determine the factors of both numbers. Since 19 is a prime number, its only factors are 1 and itself (19).
The factors of 18 are 1, 2, 3, 6, 9, and 18. The common factors of 19 and 18 are therefore just 1, as 19 has no other factors. Hence, the greatest common factor of 19 and 18 is 1.
Two parallel lines are crossed by a transversal. Horizontal and parallel lines b and c are cut by transversal a. At the intersection of lines b and a, the bottom left angle is (5 x + 5) degrees. At the intersection of lines c and a, the bottom right angle is 115 degrees. What is the value of x? x = 12 x = 14 x = 22 x = 24
Answer:
C
Step-by-step explanation:just took test
Answer:
Step-by-step explanation:
d. 24
How many times greater is 0.000006 than 0.00000002
0.000006 is 300 times greater than 0.00000002.
Explanation:To find out how many times greater 0.000006 is than 0.00000002,
We need to divide 0.000006 by 0.00000002.
So, let's perform the calculation:
0.000006 ÷ 0.00000002 = 300
This means that 0.000006 is 300 times greater than 0.00000002.
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BRAINLIEST + 30 POINTS! Please help ASAP!
(Please explain your work if you can, i'm confused by this module so it'd really help!)
In the figure shown, line AB is parallel to line CD.
Part A: What is the measure of angle x? Show your work. (5 points)
Part B: Explain how you found the measure of angle x by identifying the angle relationships that you used along the transversal. (5 points)
Answer:
we know that
By alternate interior angles
m∠PRD=m∠APR -------> equation
m∠PRD=120°
so
m∠APR=120°
m∠APR=m∠APQ+m∠QPR ---------> equation
m∠APQ=62°
m∠QPR=x°
Substitute the values in the equation 120=62+x
x=120-62
x=53
therefore
the answer is
The measure of angle x is equal to 53 degrees
Because the lines are parallel the lower outside angle given as 155 is equal to the opposite angle, which is made up of X and 62.
To find X subtract 62 from 115:
X = 115 - 62
X = 53
Find x, if f(x) = 12 and f(x) = 3x.
o 36
o 12
o 4
o 3
Answer:
4
Step-by-step explanation:
i just had that question
The required simplified value of the x is 4. Option C is correct.
Given that,
f(x) = 12 and f(x) = 3x to determine the value of the x,
The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
f(x) = 12
f(x) = 3x
Equating the above 2 equations,
12 = 3x
3x = 12
x = 12 / 3
x = 4
Thus, the required simplified value of the x is 4. Option C is correct.
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Write 7.66 x 10^6 km^2 in standard form
To convert 7.66 x 10^6 km^2 to standard form, shift the decimal point six places to the right to get 7,660,000 km^2.
Explanation:To write 7.66 x 106 km2 in standard form, you will need to move the decimal place to the right six times, because the exponent on the 10 indicates how many places to move the decimal point. Since the exponent is positive, the decimal moves to the right, and we add zeros where there are no more digits.
In practice, you take 7.66 and shift the decimal point six places to the right: 7,660,000. Hence, 7.66 x 106 km2 in standard form is 7,660,000 km2.
A house can be build using 15 panels,how many houses can be build using 1000 panels
Answer: 67
Step-by-step explanation:
I think this could be solved using division. 1000 / 15 is 66.66666, but I would round that to 67.
What is 0.9 7/8 0.86 written from least to greatest
Answer: 0.86 0.875 0.9
Step-by-step explanation: 7/8 is 8.75 in decimal form, so above would be the answer from least to greatest.
Answer: 0.86, 7/8, 0.9 is least to greatest
Step-by-step explanation:
Julie is thinking about the product-54. Which expressions could result in this product? Select all that apply.
factor x squared-6x+3x-18 by grouping
Answer:
(x - 6)(x + 3)
Step-by-step explanation:
Given
x² - 6x + 3x - 18 ( factor the first/second and third/fourth terms )
= x(x - 6) + 3(x - 6) ← factor out (x - 6) from each term
= (x - 6)(x + 3)
Sam has a total score of 500 on a game, compared to the maximum possible score of 1200.
Write this proportion as a percentage, correct to the nearest integer.
If BD and AC are perpendicular , DBE = (2x - 1), and CBE = (5x - 42), find the value of x.
Your watch Gains 0.5 minutes in 6hours. How much will it can in three days.
Answer:
6 Minutes
Step-by-step explanation:
3 days is 72 hours
72/6 = 12
12 * 0.5 = 6
3(6+5y)=2(-5+4y) help huhu
Answer:
-4 = y
Step-by-step explanation:
3(6+5y)=2(-5+4y)
18 + 15y = -10 + 8y
+10 +10
28 + 15y = 8y
- 15y -15y
28 = - 7y
28/-7 = -4
-7y/-7 = y
Answer:
y = -4
Step-by-step explanation:
distribute both 3 and 2 through the parenthesis, move the variable to the left side and change its sign, move constant to the right side and change its sign, collect like terms, calculate the difference, divide both sides of the equation by 7, and your answer would be -4
Evaluate M2/P2 for M = 10, N = -5, and P = -2?
A.-5
B.5
C.-25
D.25
Answer:
(10)^2/(-2)^2 = 100/4= 25
the answer is d
How much would $300 invested at 9% interest compounded continuously be worth after 3 years? Round your answer to the nearest cent.
$300*e^(0.09*3) = $392.99.
the answer is $392.99
i need help whoever got this answer right gets brainlist
Using the appropriate constant of proportionality, provide the value in the table that makes the quantities proportional to one another. Answer format: 8/9 *
Answer:
3
Step-by-step explanation:
If you look closely every X is changing by 3 so 3·y=x
Answer:
The value in the table that makes the quantities proportional to one another is y = 3
Step-by-step explanation:
Two quantities x and y are proportional one to another if they can be expressed as
y = kx
where k is the constant of proportionality. We can find k using an specific point. Take the first one
y = kx
k= y/x with (3.1 )
k= 1/3
So
y =1/3x for this case
If the two quantities are proportional, this rule must be true for any point (x,y) . Lets prove it
Point 2 (6,2)
2 =1/3*(6)
2= 2 True
Point 4 (12,4)
4 =1/3*(12)
4= 4 True
So to accomplish the rule in point 3, and finally in all table we must have that
y =1/3x is true for Point 3 (9,y) Then
y = 1/3 (9) = 9/3 = 3
y= 3
Y must be 3
Terry,Sasha, and Harry each chose a number.Terrys number is 10x as much as Sasha’s. Sasha’s number is 0.4. What number did each person choose?
Which expression is the simplest form of -(2x+y)+3(x-4y)?
Answer:
x-13y
Step-by-step explanation:
Combine like terms and when you do x is by itself and you have 13 y
making the answer x-13y
Solve −2x2 − 16x − 44 = 0.
The solution to the quadratic equation -2x² - 16x - 44 = 0 are [tex]x = -4 -4\sqrt{6}i \ and \ x = -4 +4\sqrt{6}i[/tex]
Given the quadratic equation in the question:
-2x² - 16x - 44 = 0
To solve the quadratic equation -2x² - 16x - 44 = 0, we use the quadratic formula:
[tex]x = \frac{-b\±\sqrt{b^2 - 4ac} }{2a}[/tex]
From the equation:
a = -2, b = 16, c = -44
Plug these values into the above:
[tex]x = \frac{-b\±\sqrt{b^2 - 4ac} }{2a} \\\\x = \frac{-(-16)\±\sqrt{(-16)^2 - 4(-2)(-44)} }{2(-2)} \\\\x = \frac{16\±\sqrt{256 - 352} }{-4} \\\\x = \frac{16\±\sqrt{-96} }{-4} \\\\x = \frac{16\±4\sqrt{6}i }{-4} \\\\x = -4 \±4\sqrt{6}i\\\\x = -4 -4\sqrt{6}i \ or \ x = -4 +4\sqrt{6}i[/tex]
Therefore, the values of x are [tex]x = -4 -4\sqrt{6}i \ and \ x = -4 +4\sqrt{6}i[/tex]
What is the vertex of angle 4 in this diagram?
Which function has the given graph?
Answer:
none of the above
Step-by-step explanation: