Answer:
Step-by-step explanation:
18x + 3y = 51
-2x - 3y = -3
16x = 48
x = 3
-2(3) - 3y = -3
-6 - 3y = -3
-3y = 3
y = -1
Factor the binomial completely
4x - 20
Answer:
Step-by-step explanation:
Step-by-step explanation:
i think the answer must be like this (4)(x‒5)
i hope it helps you
Count and fill in the missing numbers.
..., 44, 45, 46, 47, 48,
,
,
, ...
Answer:
43
Step-by-step explanation:
That is the answer
What are all the correct equations
Answer:
The last one
Step-by-step explanation:
Sue Ling gave her dad a $50 gift certificate. He plans to buy a $12 book on home repair
and as many drill bits as he can for $1.79 each. Choose the inequality that shows x, the
number of drill bits he can buy.
I
Answer:
12 + 1.79(x) ≤ 50
Number of drill bits = 21
Step-by-step explanation:
Given:
Total amount = $50
Amount of book = $12
Price of each bit = $1.79
Find:
Number of drill bits
Computation:
Assume, Number of drill bits = x
So,
12 + 1.79(x) ≤ 50
1.79(x) ≤ 38
x ≤ 21.220
Number of drill bits = 21
PLEASE HELP ASAP! VERY DESPERATE
Michelle is making a poster for a class presentation. She plans to have four sections of information, each with a different background color. The diagram shows the lengths and widths of each section, where a is the length of the red section. Which expression for the area of the poster is written as the sum of the areas of each colored section? (answer choices are in the screenshot provided. thanks! <3)
Answer:
first option
Step-by-step explanation:
the area of a rectangle is
base*height
[tex]Purple=(3)\times(a)\\\\=3a\\\\\\Green=(\frac{1}{2})\times(3)\\\\=\frac{3}{2}\\\\\\Red=1\times a\\\\=a\\\\\\Yellow=\frac{1}{2}\times 1\\\\=\frac{1}{2}[/tex]
so the sum is
[tex]\Sigma A=3a+a+\frac{3}{2}+\frac{1}{2}[/tex]
which is the first option
The expression for the area of the poster is written as the sum of the areas of each colored section is 3a + a + 3 1/2 + 1/2
Area of a rectangle = length × width
Purple color:
Area = length × width
= 3 × a
= 3a
Red color:
Area = length × width
= 1 × a
= a
Green color:
Area = length × width
= 3 × 1/2
= 3 1/2
Yellow color:
Area = length × width
= 1 × 1/2
= 1/2
Sum of the areas = purple + red + green + yellow
= 3a + a + 3 1/2 + 1/2
Therefore, expression for the area of the poster is written as the sum of the areas of each colored section is 3a + a + 3 1/2 + 1/2
Read more:
https://brainly.com/question/17229451
máximo comun divisor de 20 12 36
Answer:
El procedimiento para hallar el MCD de 12, 20, 36:Descomponer los números en su factores primos
12 2 6 2 3 3 1
20 2 10 2 5 5 1
36 2 18 2 9 3 3 31
Factores primos de 12 = 22 . 3
Factores primos de 20 = 22 . 5
Factores primos de 36 = 22.32
MCD = 21 = 2
Step-by-step explanation:
What is the median of this set of values?
6, 8, 10, 8, 4, 2, 12
A. 4
B. 6
C. 7
D. 8
Answer:
D.8
Step-by-step explanation:
In order to find median you need to find the middle number of the set by crossing each one out until you get to the middle. I hope this helps!
Regina drew a triangle with vertices at ( 1 , 2 ) , ( 3 , 3 ) , and ( 4 , 1 ) . She slides the triangle 2 units down to create an image. What are the vertices of the image?
A. ( 1 , 0 ) , ( 3 , 1 ) , and ( 4 , − 1 )
B. ( 1 , 4 ) , ( 3 , 5 ) , and ( 4 , 3 )
C. ( − 1 , 2 ) , ( 1 , 3 ) , and ( 2 , 1 )
D. ( 3 , 2 ) , ( 5 , 3 ) , and ( 6 , 1 )
Answer:
A) (1,0), (3,1), and 4,-1)
Step-by-step explanation:
subtract 2 from all of the y-values
(1,0), (3,1), and (4,-1)
So it's A.
Answer:
The answer is A.
Step-by-step explanation:
It would be best to graph this yourself and move each plot down 2 units. Your answer would be the location of the plots after moving them.
If f()
2x² + 3x + 1, what is the value of f(-2)?
Answer:
3
Step-by-step explanation:
f(x) = 2x² + 3x + 1
f(-2) = 2(-2)² + 3(-2) + 1
= 8-6+1
= 3
the double number line show the ratio of feet to miles
how many feet are in 3 miles
7n2 + 5 = 453
Solve the quadratic function
7n^2 + 5 = 453
Subtract 5 from both sides:
7n^2 = 448
Divide both sides by 7:
N^2 = 64
Take the square root of both sides:
N = 8
See attachment for math work and answer.
Ainsley walks 3/5 mile in 1/3 of a day. Sarah walks 5/8 mile in 2/6 of a day. Who walked farther, Ainsley or Sarah? Find the unit rate for each girl and then tell who you think walked farther with the correct unit rate given below. *
[tex]Ainsley \: walked \: in \: \frac{1}{3} \: \: of \: a \: day \ \: = \frac{3}{5} mile[/tex]
[tex] = \frac{1}{3} \times 24 = \frac{3}{5} [/tex]
[tex]8 \: hours = \frac{3}{5} \: miles[/tex]
[tex]Sarah \: walked \: in \: \frac{2}{6} of \: a \: day \: = \frac{5}{8} miles[/tex]
[tex] \frac{2}{6} \times 24 = \frac{5}{8} [/tex]
[tex]8 \: hours \: = \frac{5}{8} \: miles[/tex]
Let us see who walked more :
[tex]Ainsley \: walked \: = \frac{3 \times 8}{40} [/tex]
[tex] = \frac{24}{40} \: miles[/tex]
[tex]Sarah \: walked \: = \frac{5 \times 5}{40} [/tex]
[tex] = \frac{25}{40} \: miles[/tex]
[tex] \frac{24}{40} < \frac{25}{40} [/tex]
Sarah walked farther than Ainsley .
[tex] \frac{25}{40} - \frac{24}{40} = \frac{1}{40} \: miles[/tex]
∴ Sarah walked farther than Ainsley by 1/40 miles .
can someone please help me and explain how to change 2x − 3y = 9
into slope intercept form
Answer:
y=2/3x-3
Step-by-step explanation:
first, you have to isolate the y, so subtract 2x from both sides. -3y=-2x+9
Next, we must divide all sides by -3, so y=-2/-3x-3
Finally, simplify the equation to y=2/3x-3
Answer:
y=mx+b
y=2/3x + -3
2/3 is the slope points are (0,-3)
Step-by-step explanation:
2x-3y =9
subtract 2x from each side leaving it -3y = -2x +9
now divide both sides by -3 -3y/-3=-2x/-3 +9/-3
y= 2/3+ -3
Expand and combine like terms. (9c^2+c^6)(9c^2-c^6)
Answer:
81 c^4 - c^12
Step-by-step explanation:
(9c^2+c^6)(9c^2-c^6)
This is the difference of squares
(a+b) (a-b) = a^2 - b^2
(9c^2) ^2 - ( c^6)^2
81 c^4 - c^12
Answer:
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ㅤㅤㅤㅤㅤㅤ
for the equation x + y = 3. How many possible values for x are there if x and y are both whole numbers?
A.2
B.3
C.4
Answer:
A
Step-by-step explanation:
Because it is 2+1 and 3+0, those are the only solution, therefore A is correct
======================================================
Explanation:
The set of whole numbers is {0, 1, 2, 3, ...}
So we include 0 and any positive number that doesn't have decimal or fractional components to it. Negative values are not included.
If we plug in x = 0, then x+y = 3 solves to y = 3If we plug in x = 1, then x+y = 3 solves to y = 2If we try x = 2, then x+y = 3 solves to y = 1Lastly, x = 3 leads to y = 0Whatever you pick for x, the y value must add to it to get 3. Both x and y must be numbers from the set of whole numbers.
There are four cases shown in the bullet points above, so we have four different solutions. We can't move onto x = 4 because the y solution would be y = -1, but -1 is not in the set of whole numbers.
Write an equation of the line that passes through (3,7) and is parallel to the line shown.
An equation of the parallel line is y=__.
at first we should find the equation of this line so we should find a in the equation of y = a x + b and we do not care about b as it is parallel so a = ( (4 -(-2)) ÷ 1 -(-2)) = 2 so y = 2 x + b and we put x = 3 and y = 7 the result is 7 = 2×3 + b and b = 7 - 6 = 1 the equation is y = 2x + 1
Kipton takes the marshmallows off the scale. He then puts on 10 jellybeans and
then scale reads 12.0 grams. How much would you expect 1 jellybean to weigh?
Why?
Answer:
1.2grams per jelly bean
Step-by-step explanation:
10 times 1.2 is 12 grams beacuse you just move the decimal place over by one
Jessica walks 1/3 miles to the post office and then 2/5 mile to the library. How far did Jessica walk altogether?
Answer:
11/15
Step-by-step explanation:
pls help !!!! I will mark as brainliest !!!
Answer:
the bigger box
256cm² = 16cm (each side)
the smallest box
64cm²= 8cm (each side)
calculate
16cm-8cm
=8cm
8cm÷2
final answer :-
4 cm
HOPE THIS HELPS
Find the y intercept of 12x-6y=36. No ordered pair. Numeric value only. pls help!!
Answer:
The y-intercept is (0,-6), but the way they want it written the answer is y intercept= -6
Step-by-step explanation:
Use mental math to find the product
0.4• 3.29•25
Answer:
32.9
Step-by-step explanation:
What distance did the bus travel???
Answer:
495km
Step-by-step explanation:
180 km in 4 hours means x km in 11 hours.
Cross multiply and you'll find x as 495 km
Movers Company manufactures sneakers. The production of their new sneaker for the coming three months is budgeted as follows: August 30,000 September 50,000 October 35,000 Each sneaker requires 2 hours of direct labor time. Direct labor wages average $15 per hour. Monthly overhead averages $10 per direct labor hour plus fixed overhead of $4,500. What is the direct labor cost budgeted for September?
Answer:
Direct labor cost= $1,500,000
Step-by-step explanation:
Giving the following information:
Production:
September 50,000
Each sneaker requires 2 hours of direct labor time.
Direct labor wages average $15 per hour.
First, we need to calculate the number of direct labor hours required:
Direct labor hours= 50,000*2= 100,000 hours
Now, the direct labor cost:
Direct labor cost= 100,000*15= $1,500,000
Plzzzz helllpppp if you can
Answer:
89
Step-by-step explanation:
The sum of the angles in a triangle is always 180 degrees. So if you add 50 and 41 together, you get 91. 190-91= 89 degrees.
A student did an experiment to test the hypothesis that brand name paper towels soak up water better than generic paper towels. What would be the independent variable in the student's experiment?
Answer: The independent variable is the brand and the dependant variable is the amount of water you use.
Step-by-step explanation:
The Independent variable is the condition that you change in an experiment.
The dependant variable is the condition that you measure in an experiment.
The independent variable in the student's experiment is the type of paper towel used.
In an experiment, there are three types of variables:
The independent variable : the experimenter can change or manipulate this variable in order to determine its effect on the dependent variable. The dependent variable : this is the variable whose value would be determined in the experiment.The extraneous variable : this is the variable that can affect the result of the experiment but it is not researched in the experiment.In this question the type of towel used would determine the amount of water that can be absorbed. This makes the type of towel used the independent variable. The dependent variable is the amount of water absorbed.
To learn more about independent variables, please check: https://brainly.com/question/1479694?referrer=searchResults
Choose the definition of the function
Answer:
answer is A
Step-by-step explanation:
if f(x)=3^x+10 and g(x)=2x-4, find (f-g)(x)
=====================================
Work Shown:
(f - g)(x) = f(x) - g(x)
(f - g)(x) = ( f(x) ) - ( g(x) )
(f - g)(x) = ( 3^x + 10 ) - ( 2x-4 )
(f - g)(x) = 3^x + 10 - 2x+4
(f - g)(x) = 3^x - 2x + (10+4)
(f - g)(x) = 3^x - 2x + 14
PLZZZ HELPP anyonee plzzzz
Answer:
The correct answer is B
Step-by-step explanation:
its is B because when dividing fractions the division symbol changes into a multiplication sign and the fraction on the right flips
High Hopes^^
Barry-
What is the value of the expression (x – 2y)(x + 2y) when x= 4 and y = 2?
Answer:
0
Step-by-step explanation:
To solve this, you first plug in the 4 and 2 where the x and y's go, making the expression (4 - 2(2))*(4 + 2(2)). Then you solve each parenthesis (below).
(4 - 2(2))*(4 + 2(2)).
(4 - 4)*(4 + 4).
0*8
0
Hope this helped! If you have any questions, feel free to message me :)
Which two expressions are equivalent?
a.) 2a and 9/3 (a)
b.) 5a and 3(2a)
c.) 4a - 2a and a+a
d.). 4a - a and 1+1+1+a
Answer:
C) 4a-2a=a+a
Step-by-step explanation:
4a-2a=2a
2a=a+a
2a=2a
answer:
option c is correct!
explanation:
hope this helped! <3 i answered your question & hope you have a great day! if you wouldn't mind could you pls give me brainliest? (im trying to level up) thanks! :)
