Answer:
(x+20) + (x-9)
Step-by-step explanation:
(Select all the true statements. )
A.) after one week he collected 8.7 pounds of food
B.) after 8.7 weeks, he collected 1 pound of food.
C.) in 30 weeks , he should collect 261 pounds of food
D.) in 20 weeks , he collected 180 pounds of food
E.) the point (10, 100) is on the graph of the proportional relationship.
(Please I need help !!! )
Answer:
the answer is a
Step-by-step explanation:
Use the slope formula to find the slope between the given two points.
7. (4,9) and (1,6)
8. (-4,-1) and (-2,-5)
9. (5, 3) and (5,-9)
10. (2, 1) and (8,9)
11. (14, -8) and (7,-6)
12. (4, -3) and (8, -3)
13. (-7,-5) and (2,-8)
14. (-11, 1) and (-2, 6)
15. (-5, -1) and (-7, 2)
Answer:
7. 1
8. -2
9. undefined (meaning the line goes straight up and down)
10. 4/3
11. -2/7
12. 0 (meaning it is completely flat)
13. -1/3
14. 5/9
15. -3/2 or -1.5
Step-by-step explanation:
Answer:
7. 1
8. -2
9. Undefined (meaning the line goes straight up and down)
10. 4/3
11. -2/7
12. 0 (meaning it is completely flat)
13. -1/3
14. 5/9
15. -3/2 or -1.5
Step-by-step explanation:
A container holds 500 ml of liquid. How many liters will the container hold
Answer:
It would hold .5 liters because 1000ml is equal to 1 liter
Step-by-step explanation:
-1/7÷-5/9
7/8÷8/9
Show the steps please
90.10 rounded to the nearest whole number?
Answer:
it would be 90 because it has o be a 5 to 9 to round up but is a 1so you can round up
Step-by-step explanation:
Sixty-four is 66 2/3 percent of what number?
please answer quickly if you can
Answer:
n = 96
Step-by-step explanation:
[tex]66\frac{2}{3}[/tex] % = [tex]\frac{200}{3}[/tex] %
[tex]\frac{64}{n}[/tex] = [tex]\frac{\frac{200}{3} }{100}[/tex]
[tex]\frac{\frac{200}{3} }{100}[/tex] = [tex]\frac{2}{3}[/tex]
[tex]\frac{64}{n}[/tex] = [tex]\frac{2}{3}[/tex]
2n = 192 ⇒ n = 96
Paul joins a gym that has an initial membership fee and a monthly cost. He pays a total of $295 after three months, and $495 after eight months.
a) Identify the monthly cost.
b) What is the initial membership fee?
c) Write an equation for the total cost C as a function of the number of months, m. (so C is your y and m is your x)
d) Find how much Paul will have paid after one year.
Please give me answer.
Answer:
a
Step-by-step explanation:
Which statement describes the image?
Answer:
d.) none are correct
Step-by-step explanation:
it should be reflection over the y-axis then reflection over the x-axis
PLEASE HELP ME WITH THIS ALGEBRA QUESTION!! THANK YOU!!
Answer:
4a (n-1) + 5
Step-by-step explanation:
1th=6
2nd=29
3rd=121
4th=489
.
.
nth
if n=2
a2 = 4a(2-1) + 5 = 4 a(1) + 5 = 4 (6) + 5= 29
a3 =4a(3-1) + 5 = 4 a(2) + 5 = 4 (29) + 5= 121
try finding a4, check wether the answer is 489
is negative 9 an integer
use place value solve 947-586
Answer:
361
Step-by-step explanation:
Write it out like.. (900-40-7)-(500-80-6)=361
Just tell me like first one goes to... or like seconds one goes to..
9 x -5=
help!!! I am stuck
Answer:
-45 is the answer good luck
Answer:
-45 is your answer hope this helps
-9 + 1/4x - 6 - 1/8x
Answer:
Assuming you want me to simplify your answer, the answer to your question is x/8-15.
Step-by-step explanation:
Simplify each term by combining 1/4 and x, and then combine x and 1/8 to get -9+x/4-6-x/8. Subtract 6 from -9 for x/4-15-x/8. Write x/4 as a fraction with a CD (Common Denominator) by multiplying by 2/2. Write each expression with a CD of 8. Combine the numerators, subract x from x*2 by reordering x and 2 to get 2*x-x/8-15. Then subract x from x to get x/8-15.
I will give you a pdf where it will be done and how I do it, I hope that it served you
Simplify
8/-3 divided by -4/9
-3
9
O -8
O -6
O 6
O 8
Answer:
6 is the answer
Step-by-step explanation:
8÷ -3 = −2.6666666667
-4÷ 9 = −0.4444444444
−2.6666666667 ÷ −0.4444444444 =6.0000000007
The answer is 6.
What is the w
4w+3w=63
Answer:
7w=63
63÷7=9
so, (w=9)
Answer:
9
Step-by-step explanation:
3*9 = 27 4*9=36
36 + 27 = 63
pls help find the amount at the end of 6 hours
Answer:
A. 7,348
Step-by-step explanation:
P = le^kt
intitial population = 500
time = 4 hrs
end population = 3,000
So we have all these variables and we need to solve for what the end population will be if we change the time to 6 hours. First, we need to find the rate of the growth(k) so we can plug it back in. The given formula shows a exponencial growth formula. (A = Pe^rt) A is end amount, P is start amount, e is a constant that you can probably find on your graphing calculator, r is the rate, and t is time.
A = Pe^rt
3,000 = 500e^r4
now we can solve for r
divide both sides by 500
6 = e^r4
now because the variable is in the exponent, we have to use a log
[tex]log_{e}(6) = 4r[/tex]
ln(6) = 4r
we can plug the log into a calculator to get
1.79 = 4r
divide both sides by 4
r = .448
now lets plug it back in
A = 500e^(.448)(6 hrs)
A = 7351.12
This is closest to answer A. 7,348
What is the slope of a line perpendicular to the line passing through (-23, 8) and (12, -17)
Answer:
[tex]m=\frac{7}{5}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASAlgebra I
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]Slope of a perpendicular line is the negative reciprocal of the originalStep-by-step explanation:
Step 1: Define
Point (-23, 8)
Point (12, -17)
Step 2: Find slope m
Substitute: [tex]m=\frac{-17-8}{12+23}[/tex]Subtract/Add: [tex]m=\frac{-25}{35}[/tex]Simplify: [tex]m=\frac{-5}{7}[/tex]Step 3: Find perpendicular slope m
Take negative: [tex]m=\frac{5}{7}[/tex]Take reciprocal: [tex]m=\frac{7}{5}[/tex]And we have our final answer!
There are 400 students at Washington Middle School, and 100 of them are in sixth grade. What percent of the students are in sixth grade?
Pick the model that represents the problem.
Answer:
25%
Step-by-step explanation:
Select all of the expressions that are equivalent to 5x + x2
The piecewise function f(x) has opposite expressions.
2x - 1,
x < 0
f(x) = 0,
x = 0
-2x + 1 x > 0
Which is the graph of f(x)?
Ty
t
5
3
2
20
2
1
-5 -4 -3 -2 -1
1
2
34
5
-5-4-3-2
2
3
4
5
-3-2
-2
Answer:
the first answer should be the one
Graph 2 has opposite expressions
Start by calculating the equations of the functions.
From the graphs, we have the following equations
Graph 1: y = -|2x| + 2Graph 2: y= 2x -2 and y= -2x - 2Graph 3: y = 2x - 1 and y = -2x + 1Graph 4: y = -2x + 1 and y = 2x - 1An opposite function is defined by y = f(x) and y = f(-x)
Graph 1 is an absolute value graph.
Check if y = f(x) and y = f(-x) is true for function 2.
We have:
[tex]f(x) = 2x - 2[/tex]
[tex]f(-x) = 2(-x) - 2[/tex]
[tex]f(-x) = -2(x) - 2[/tex]
For graph 2, f(x) and f(-x) are true.
Hence, graph 2 has opposite expressions
Read more about opposite functions at:
https://brainly.com/question/4292846
What is the answer this is due in 10 MINUTES
Answer:
The answer is D 5
Step-by-step explanation:
because you could multiply by 5 and divide by 5
its proportional
Find the probability that when four numbers from 1 to 100, inclusive, are picked at random with no repetitions allowed, either all are odd, all are divisible by 3, or all are divisible by 5.
Answer:
The probability is;
0.076
Step-by-step explanation:
The count of numbers from 1 to 100 is 100
Let’s find the number of odd numbers
We can use;
a + (n-1)d = T
a is 1, d is 2 and T is 99
Thus;
1 + 2(n-1) = 99
n-1 = (99-1)/2
n-1 = 59
n = 50
So there are 50 odd numbers
Probability of selecting an odd number is 50/100 = 1/2
If all 4 are odd, we have 1/2^4 = 1/16
Let’s get the multiples of 3
we can use
a + (n-1)d = T
a = 3, n = ? , d = 3 and T = 99
So;
3 + 3(n-1) = 99
n-1 = 34
n = 33
So the probability is 33/100
All 4 are divisible will give 33/100^4
Multiples of 5
a + (n-1)d = T
a = 5, n = ? , d = 5 T = 100
5 + (n-1)5 = 100
5(n-1) = 95
n-1 = 19
n = 20
Probability is 20/100 = 1/5
All
four are multiples of 5
1/5^4 = 1/625
So the probability is;
1/16 + 1/625 + 0.01185921
= 0.0625 + 0.0016 + 0.01185921 = 0.07595921
can someone plz answer asap
Answer:b
Step-by-step explanation:b
Answer:b
Step-by-step explanation:b
What is the answer for the quotient
Answer:
0.91666666666
Step-by-step explanation:
if its wrong tell me
Answer:
10
Step-by-step explanation:
Strategy Keep change flip
Only use this strategy when dividing fraction not adding subtracting or multiplication
5/6 ÷1/12 would change to 5/ times 12/1
5/6 times 12/1 =60/6.
That an improper fraction so you see how many times 6 goes into 60 which is 10 times so the answer is 10
Hope I helped
Select the three fractions that are equal to 8/14
A) 4/7
B) 48/84
C)16/28
D) 2/3
E) 24/48
Answer:
A) 4/7 and C) 16/28 and B) 48/84
Evaluate 3x^2 – 2xy - 4y^2
when x = 2 and y = - 3.
A. 12
B. -36
C. -12
D. 36
Evaluate for x=2,y=−3
3(22)−(2)(2)(−3)−4(−3)2
3(22)−(2)(2)(−3)−4(−3)2
= C. −12
Middle School had 480 students. At the end of the
year, it had 504 students. What is the percent of
change in the enrollment?
explain.
Answer:
there is a 5% increase
Step-by-step explanation:
say 480=100%
4.8=1%
divide 504 by 4.8 you get 105,
so 504=105%
this is 5 more than 100 therefore 5%
On a number line, locate and label 20℃ below zero and 20℃ above zero. What does zero represent in this situation?
Number line \/
Answer:
Real-World Positive and Negative Numbers and Zero. 20. This work is derived ... when describing and representing situations involving integers; for example, ... feedback by labeling and relabeling the number line based on different responses. ... I would locate (place) zero as far to the left as possible and use a scale of 10.
Step-by-step explanation:
I need help solving for X
The answer choices are
-9
10
-11
9
Answer:
x = -11
Step-by-step explanation:
Equations
The image shows a right triangle with angles 70°, 90°, and x+31.
The sum of the internal angles of a triangle is 180°, thus:
70 + 90 + x + 31 = 180
Simplifying:
191 + x = 180
Subtracting 191:
x = 180 - 191
x = -11