Answer:
3.5
Step-by-step explanation:
The expression 2 - 2 + 5x is equivalent to the expression 5x
True or False
Answer:
True!
Step-by-step explanation:
Put all the whole numbers together so 2+ (-2) cancels out
2-2+5x
positive 5x would be the only thing left so there you go!!!
A rectangular doubles tennis court is (8x - 2) ft long and (4x - 4) ft wide. Which expression represents the perimeter of the tennis court?
A (12x - 6) ft
B. (12x + 6) ft
C (24x - 12) ft
D. (24x + 12) ft
If you can please show the steps
Answer:
C
Step-by-step explanation:
Remark
The easiest way to do this is to add the two givens together and then multiply by two. Why 2? Because the formula is P = 2(L + W)
Givens
L = 8x - 2
W = 4x - 4
Solution
P = 2*(8x - 2 + 4x - 4)
P = 2*(12x - 6)
P = 24x - 12
C
write in its simplest form : 30 : 1 ¼ hour
Answer:
6
Step-by-step explanation:
The slope of a given line is shown below. Find the slope of a line parallel to the given line and the slope of a line perpendicular to the given line.
M=5
The slope of a line parallel to the given line is m=___.
Answer:
The slope of a line parallel to the given line = 5
The slope of a line perpendicular to the given line = - 1/5
Step-by-step explanation:
A dog shelter has 22 poodles. The number of poodles is doubling every year. How long before the shelter has 22,528 poodles?
Please help
Answer:
I think 1024 days? Which is around 2 years...
2 Last year the girls' basketball team had 8 fifth-grade students and 7 sixth-grade students. What was the ratio of sixth- grade students to fifth-grade students on the team? A. 8:15 B. 8:7 C. 7:8 D. 15:8 HELPP
Answer:
7:8
Step-by-step explanation:
There are 7 sixth graders and 8 fifth graders. You don't put the whole of all of them in the ratio.
Two trains on opposite tracks leave the same station at the same time. One train travels at an average speed of 80 kilometres per hour and the other travels at an average speed of 70 kilometres per hour. How long after they leave the station will they be 50 km apart?
Answer:
1/3 hr or 20 min.
Step-by-step explanation:
Call the trains A and B
Remember d = rt
Distance train A travels is 80t
Distance train B travels is 70t
Now, 80t + 70t = 50
150t = 50
t = 50/150 = 1/3 hr or 20 min.
Identify the points which of the following coordinate pairs make the equation x - 9y = 12 true?
Show your reasoning.
1. ( 12, 0 )
2. ( 0, 12 )
3. ( 3, -1 )
4. ( 0, - 4/3 )
Answer:
Step-by-step explanation:
Because in equation x-9y=12
If we put x=12 and y=0 then it satisfy equation. (12)-9(0)=12
So, (12,0) make equation
(3,-1) also make equation
(3)-9(-1)=12
(0,-4/3) also make equation
Because
0-9(-4/3)=12
Only (0,12) is not making
Beacuse
(0)-9(12) is not equal to 12
A line that passes through the points (-3,5) and (6,10)
Answer:
y = 5/9x + 19/3
Step-by-step explanation:
slope: 10 - 5 / 6 - (-3) = 5/9
point-slope form:
y - 5 = 5/9(x + 3)
y -5 = 5/9x + 4/3
y = 5/9x + 6 1/3
The school orchestra is creating a CD of their last concert. The total cost to make the CD is $300 plus $2.50 per CD. They are selling the CDs for $10 each. How many CDs will they need to sell to make a profit?
Answer:
They need to sell more than 40 CDs to make a profit.
Explanation:
They will make a profit when the sales are higher than the cost and with the information provided, you can write the following inequality:
10x>300+2.5x, where x is the number of CDs sold
Now, you can solve for x:
10x-2.5x>300
7.5x>300
x>300/7.5
x>40
According to this, the answer is that they need to sell more than 40 CDs to make a profit.
Greg bought 28 pounds of sugar for $11.
How many dollars did he pay per pound of sugar?
Answer:
$2.54
Step-by-step explanation:
You divide 28 by 11 and you get 2.54545454545, which you can just sum down to 2.54 (I think thats right)
Please help quickly I will mark brainliest!! At least the equation of the graph please
Answer:
a. The domain of the function is -3 < x ≤ 5
b. The range of the function is -3 ≤ y < 3
c. The y-intercept is the point (0, 0)
d. The values of 'x' at which f(x) ≥ 0 are;
x = -3, x = 1, x = 5
e. The intervals over which f(x) is decreasing are;
-3 < x ≤ - 1, and 1 ≤ x ≤ 3,
f. The local minimums are;
(-1, -1), and (3, -3)
Step-by-step explanation:
a. The domain of a function is the set of the possible independent variable values
Therefore, the domain of the function is -3 < x ≤ 5
b. The range of a function is the set of the possible values of the dependent variable
Therefore, the range of the function is -3 ≤ y < 3
c. The y-intercept is the point (0, 0)
d. The values of 'x' for which f(x) ≥ 0 are;
x = -3, x = 1, x = 5
The range of values of 'x' where f(x) ≥ 0 are;
-3 < x ≤ - 1.5, 0 ≤ x ≤ 1.5, 4.5 ≤ x ≤ 5
e. f(x) is decreasing over the following intervals;
-3 < x ≤ - 1, and 1 ≤ x ≤ 3,
f. The local minimums are the points that are lowest compared to other nearby points
The local minimums are;
(-1, -1), and (3, -3).
PLS HELP!! RIGHT ANSWER GETS BRAINLIEST!! pls only answer if u know the answer 100% this is a test!
What is the solution to the system of equations?
(4, 0)
(−2, 3)
(0, 6)
(−4, 0)
Answer:
The answer is (-2,3)
Step-by-step explanation:
If you look at the coordinate plane, you'll notice that the x -values are negative and the y-values are positive. So, if you look at where the two lines meet, they meet at the point (-2,3).
Hope I helped!!!
Help in math pleas due in few minutes!!!!
Answer:
3 inches
Step-by-step explanation:
if she cut 3 inches off the length, that makes it 9 inches. the original rectangle was 2 inches longer. so subtract 2 from 9 and 7. she needs to have the width 7 inches.
for brainiest:):):):):)
Answer:
number one is 22 number two is 16 number three is 32
Step-by-step explanation:
Sheila is biking at a constant speed. She travels 54 meters in 9 seconds. Part A How many meters per second does Sheila travel?
Answer:
Step-by-step explanation:
6 meters/ seconds
Step 1: Find the unit rate
total distance/total time
54/9
6 meters / seconds
Awnser: 6 meters/ seconds
Answer:
Answer:
She Travles 6 MPH
Step-by-step explanation:
6x9=54
One side of a tabletop is 12x – 5 units long. Another side of the tabletop is 7x + 4 units long. If the tabletop is a square, what is the value of x?
Answer:
no c
Step-by-step explanation:
The expression 10a+6c gives the cost (in dollars) for a adults and c children to eat at a buffet restaurant.
a. The cost for 1 adult is $ ?
. The cost for 1 child is $ ?
b. The total cost for 1 adult and 3 children is $ ?
Question 2
c. Is $30 enough for a family of 2 adults and 2 children to eat at the buffet?..
Answer:
Answer: The total cost is assuming the cost for 1 adult is and the cost for 1 child is
Step-by-step explanation:
B.
How do I do this?
Answer:
61.928 is angle C
Step-by-step explanation:
hope this helps
Answer:
Use the law of cosines.
Example:
c^2 = a^2 + b^2 - 2ab cosc
Find the equation that matches the statement.
Four times a number reduced by seven equals 42
Question 7 options:
4x - 7 = 42
4x + 7 = 42
42 - 4x = 7
7x + 4 = 42
A tipi is set up with tip poles that are 36 feet long. The poles extend 3 feet above the top of the tipi. The diameter of the tipi is 14 feet. How tall is the tipi, rounded to the nearest tenth?
Answer:
i dont know
Step-by-step explanation:
What is 1% of 4,935 ?
O A. 0.04935
O B. 0.4935
O C. 4.935
D. 49.35
E. 493.5
Answer:
D. 49.35
Step-by-step explanation:
[tex]\frac{4935}{100 X 100}[/tex] X 100 = 49.35
what is value of x in the multi-step equation
22-9x=9x+10
Answer:
x= 2/3
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
22−9x=9x+10
22+−9x=9x+10
−9x+22=9x+10
Step 2: Subtract 9x from both sides.
−9x+22−9x=9x+10−9x
−18x+22=10
Step 3: Subtract 22 from both sides.
−18x+22−22=10−22
−18x=−12
Step 4: Divide both sides by -18.
x=2/3
What is the difference between 31 1/4 and 35
WILL GIVE BRAINLIEST TO WHOEVER ANSWERS FIRST
Answer:
3.75
Step-by-step explanation:
35 - 31 1/4 = 3.75
Which set of inequalities best describes the region R?
Answer:
C--- x+y<-1y>2
Step-by-step explanation:
hope this helps!
have a good day :)
SOMEONE PLEASE HELP ME WITH THIS ILL GIVE YOU BRAINLY IF YOU GET IT RIGHT!!!!!!
Answer:
400
Step-by-step explanation:
please mark me brainliest if i was right
In a certain Algebra 2 class of 24 students, 6 of them play basketball and 7 of them play baseball. There are 13 students who play neither sport. What is the probability that a student chosen randomly from the class plays basketball or baseball?
Answer:
13/24 or 54%
Step-by-step explanation:
There are 24 students in total. Total will also be the denominator. Add 6 + 7 to find the amount that play the sports. Insert the number (13) as the numerator. Divide 13 by 24 if you need to find the percent!
Answer: 11/24
Step-by-step explanation:
2+5+4 =11
Expect the 13 person/students didn't play
Total people 24
24-13=11
11/24
Find all the missing angles in the picture below. 1, 72, 57, 2, 3, 4,
Answer:
how cane we find the angels but there is no angels
Answer:
where are the angels babe
Step-by-step explanation:
o-0
In ΔHIJ, h = 3.7 cm, i = 5.4 cm and j=3.8 cm. Find the measure of ∠H to the nearest degree.
Answer:
43
Step-by-step explanation:
deltamath
Answer:43
Step-by-step explanation:
what is the sum of the interior angle measures of a polygon that has 20 sides
Answer:
3240°
Step-by-step explanation:
Formula is ( 2n-4)90° where n is the no of sides
(2×20-4)90°
(40-4)90°
36×90
3240°