Answer:
70 problems are correct
Step-by-step explanation:
Pablo can wash 6 cars in 40 minutes at this rate how many cars can Pablo wash in 4 hours
Answer:
16
Step-by-step explanation:
convert 40 minutes to hours
[tex] \frac{40 \: minutes}{1} \times \frac{1 \: hour}{60 \: minutes} = \frac{40}{60} = \frac{2}{3} hour[/tex]
multiply to find the number of cars per hour
[tex] \frac{2}{3} \times \frac{6}{1} = \frac{12}{3} = 4 \: cars \: per \: hour[/tex]
multiply again
[tex]4 \times 4 = 16[/tex]
These spam comments are getting out of hand. They’re everywhere and it’s really annoying having to post another question because of those spam comments. Like who’s behind all of this? And for what reason are they doing this?
Answer:
I agree it's annoying!!!
Step-by-step explanation:
I think the people who just spam questions are just lazy and they have nothing else to do with their lives. So they try to make themselves feel better by annoying other people. I hope you are having a good day other than people spamming questions!
Evaluate V.
V=LWH
L=3. W = 2. H= 1
Answer:
Answer is 6cm³
Step-by-step explanation:
V = 3 × 2 × 1
= 6cm³
please solve this problem
please give me the correct answer
I hope this solution works
I need to understand the process, any help is much appreciated. :)
Answer:
15 x -5y -6 -2y
-75y -6 -2y
-77-6
help
Which lines are perpendicular to the line y –1=1/3(x+2)?
check all that apply
y + 2 = –3(x – 4)
y − 5 = 3(x + 11)
y = -3x – Five-thirds
y = One-thirdx – 2
3x + y = 7
Three more than twice a number is less than negative fifteen.
Answer:
3+2x < -15
x<-9
I hope this helps : )
Answer:
Step-by-step explanation:
What is the solution to this equation?
7- 3√2-x=12
The value of x is -(5 + 3√2).
what is equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side. It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given:
7- 3√2-x=12
Now solving
7- 3√2-x=12
Subtract 7 from both side
7- 3√2-x - 7 =12 - 7
- 3√2-x = 5
Now, add 3√2 both side
-3√2 -x + 3√2 = 5 + 3√2
-x= 5 + 3√2
x= -(5 + 3√2)
Hence, the value x is -(5 + 3√2).
Learn more about equation here:
https://brainly.com/question/10413253
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Please help me fast I am confused!!!
Answer:
The second choice.
Step-by-step explanation:
A linear functions graph is a straight line.
3. (04.03 LC)
Identify the domain of the exponential function shown in the following graph: (2 points)
Answer:
x is greater than or equal to 0.
Step-by-step explanation:
The domain is just your X value. In contrast, the range is your Y value. Since we start at and include 0 on the X axis, we continue forever from there. Therefore, X is greater than or equal to 0.
what is the justification for step 3 in the solution process
Answer:
the multiplication property of equality
A rectangular schoolyard is to be fenced in using the wall of the school for one side and 500 meters of fencing for the other three sides. The area in square meters of the schoolyard is a function of the length in meters of each of the sides perpendicular to the school wall.
A. Write an expression for A(x) using NO SPACES.
B. What is the area of the schoolyard when x = 100 ?
C. What is a reasonable domain for x in this context?
Answer:
StPart 1) The expression is
Part 2) The area of the schoolyard when x=40 m is A=2,800 m^2
Part 3) The domain is all real numbers greater than zero and less than 75 meters
Step-by-step explanation:
Part 1) Write an expression for A(x)
Let
x -----> the length of the rectangular schoolyard
y ---> the width of the rectangular schoolyard
we know that
The perimeter of the fencing (using the wall of the school for one side) is
so
-----> equation A
The area of the rectangular schoolyard is
---> equation B
substitute equation A in equation B
Convert to function notation
Part 2) What is the area of the schoolyard when x=40?
For x=40 m
substitute in the expression of Part 1) and solve for A
Part 3) What is a reasonable domain for A(x) in this context
we know that
A represent the area of the rectangular schoolyard
x represent the length of of the rectangular schoolyard
we have
This is a vertical parabola open downward
The vertex is a maximum
The x-coordinate of the vertex represent the length for the maximum area
The y-coordinate of the vertex represent the maximum area
The vertex is the point (37.5, 2812.5)
using a graphing tool, see the attached figure
therefore
The maximum area is 2,812.5 m^2
The x-intercepts are x=0 m and x=75 m
The domain for A is the interval -----> (0, 75)
All real numbers greater than zero and less than 75 meters
ep-by-step explanation:
Abdul drove 250 miles using 9 gallons of gas. At this rate, how many gallons of gas would he need to drive 275 miles?
4. 18 is 80% of what?
A. 20
B. 22.5
C. 14.4
D. 9
Answer:
22.5 (B)
Step-by-step explanation:
The resting heart rate of an adult is usually about 60 beats per minute. Complete the chart below and be sure to include comma for thousands.
Minutes Heartbeats
1 60
5 300
10 [blank]
50 [blank]
100 [blank]
500 [blank]
1,000 [blank]
5,000 [blank]
10,000 [blank]
( 25 point's !!!!!)
Answer:
heart rate for adults ranges from 60 to 100 beats per minute genuinely a lower heart rate is at rest implies more efficient heart functions and better cardiovascular fitness
Step-by-step explanation:
a well-trained athlete might have a normal resting heart rate closer to 60 beats per minute
(I really do hope this helps)
3[-2(8-13)] how to solve it
Answer:
3 times - 2,times 8-13
You solve the ones in the bracket first
(the rule of BODMAS)
So 8-13 first, then
-2times 8-13,then
Then you get your answer
Allison and Lindsey each measured their bedrooms for new carpeting. They found
that both rooms were square, with the length of Lindsey's room 3 feet longer than
Allison's. If Lindsey needed 225 square feet of carpeting, how many square feet of
carpeting did Allison need?
Answer:
Step-by-step explanation:
Let's assume that the length of a side of Allison's room as x
So, Lindsey's room = x + 3
If Lindsey's room needs 225 sq. feet of carpeting, then x + 3 = [tex]\sqrt{225}[/tex]
So, x + 3 = 15
Therefore, x = 15 - 3 = 12 ( So, Allison's room has a side of length 12)
Therefore, the carpeting needed = 12 × 12 = 12² = 144 sq. feet
There's your answer!
Rise over run please?????????
Answer:
1/3
Step-by-step explanation:
up 1 right 3
how do I solve this problem
2|x+7|-5=15
Answer: x=3 or x=-17
Step-by-step explanation: go to mathpapa.com and type the question. then click step by step it is really helpful.
This is a fun money give away answer what is 300 x j =900
hint:it is between 4 and 1 so let me see what y'all got
I will take it down in the next 5 minutes.
Multiply the binomials: (b+8)•(b-2)
Answer:
[tex]{ \rm{(b + 8)(b - 2)}} \\ \\ = { \rm{ {b}^{2} - 2b + 8b - 16}} \\ \\ = { \rm{ {b}^{2} + 6b - 16}}[/tex]
Each year a certain amount of money is deposited in an account which pays an annual interest rate of so that at the end of each year the balance in the account is multiplied by a growth factor of x = 1 + r. $300 is deposited at the start of the first year, an additional $500 is deposited at the start of the next year, and $400 at the start of the following year.
A) Write an expression for the value of the account at the end of three years in terms of the growth factor .
B) What is the amount (to the nearest cent) in the account at the end of three years if the interest rate is 2%?
Answer: 5%
Step-by-step explanation:
I'll mark BRAINLIEST to whoever answers first.
a * b > a
For this statement to be true, b must be;
greater than 1 or less than one
Select the correct answer.
Answer:
depends
Step-by-step explanation:
if the value of (a) is negative, then (b) being greater than 1 would make the answer smaller. if (a) is positive, then (b) would have to be greater
Answer:
greater than 1
Step-by-step explanation:
must be greater than 1.
WHY?:
a is possitive = +a
b can't be negative or zero
if b is equal to 0
then a * 0 = 0
0 is lesser than one
how do you decide which rational number operations to use to solve the problems?
Answer:
The process of "choosing the operation" involves deciding which mathematical operation (addition, subtraction, multiplication, or division) or combination of operations will be useful in solving a word problem.
Step-by-step explanation:
plz help me with this
Answer:
12
Step-by-step explanation:
If f(x) = 52, what is the value of f(-6), to the nearest hundredth (if necessary)?
Answer:
the correct answer is 52
could someone please help answer this thank you, please no spam, will give brainliest, (homework help)
Answer:
I think it's:
w>2
sorry if I'm wrong
erin wants to equally divide oatmeal bars among five friends if she has 12 bars how many will each friend receive
Answer:
Each friend gets 2.4 bars
Step-by-step explanation:
12/5 is 2.4
Answer:
2.4 oatmeal bars
Step-by-step explanation:
12/5=2.4
A unit to express volume is?
Answer:
Please mark Brian List The answer is Cubic units
Answer:
The unit used to express volume is cubic units
any unit but it should be cubic
like cm³ ml³
what is the GCF of 30 42
Answer:
The answer is 6 :)
Step-by-step explanation:
The GCF of two non-zero integers, x(30) and y(42), is the greatest positive integer m(6) that divides both x(30) and y(42) without any remainder.
Answer:GCF=2
Step-by-step explanation:
The lowest factor that fits is 2.
2x15=30
2x21=41