Answer:
-3x
General Formulas and Concepts:
Combining like termsStep-by-step explanation:
Step 1: Write expression
2x - 5x
Step 2: Combine like terms (x)
-3x
since there are 5,280 feet in one mile and 3.3 feet in one meter how many meters per second are equivalent to 50 miles per hour
Given:
1 mile = 5280 feet
1 meter = 3.3 feet
convert 60 miles per hour to meters per second
60 miles to meters
60 miles x 5280ft x 1meter = (60*5280m)/3.3 = 316800m/3.3
1 mile 3.3ft
= 96,000 meters
1 hour to seconds
1 hour x 60 minutes x 60 seconds = 1 * 60 * 60sec = 3600 seconds
1 hour 1 minute
unit rate: meters per second
96000 meters ÷ 3600 seconds = 26 2400/3600
simplify 26 2400/3600 ⇒ 26 2/3 meters per second
2400 ÷ 1200 = 2
3600 ÷ 1200 = 3
Whats the surface area of A cube with the length of 5cm
Answer:
30 cm sq
Step-by-step explanation:
A video rental company offers a plan that includes a membership fee of $11 and charges $4 for every DVD borrowed. They also offer a second plan, that costs $47 per month for unlimited DVD rentals. If a customer borrows enough DVDs in a month, the two plans cost the same amount. How many DVDs is that? What is the total cost of either plan?
Answer:
9
Step-by-step explanation:
47-11=36
36/4=9
The measure of the supplement of ∠BAC is (18x+22) degrees. The measure of the complement of ∠BAC is (9x-5) degrees. Determine m∠BAC.
Answer:
∠ABC = 32°
Step-by-step explanation:
We know that the two angles are termed as supplementary when their angle measures add up to 180 degrees.Given that the measure of the supplement of ∠BAC is (18x+22) degrees.
so
∠ABC + (18x + 22)° =180°
∠ABC + 18x =180°-22°
∠ABC + 18x =158°
∠ABC = 158° - 18x ----[Equation A]
We know that the two angles are termed as complementary when their angle measures add up to 90 degrees.Given that the measure of the complement of ∠BAC is (9x-5) degrees.
so
∠ABC + (9x-5)° =90°
∠ABC + 9x =90°+5°
∠ABC + 9x =95°
∠ABC = 95° - 9x ----[Equation B]
Equating [Equation A] and [Equation B]
158° - 18x = 95° - 9x
-18x+9x = 95° - 158°
-9x = -63
divide both sides by -9
x = 7
Now, substituting the value x=7 in the [Equation A]
∠ABC = 158° - 18(7)
= 158° - 126°
= 32°
Thus,
∠ABC = 32°
Cheryl wants to find the number of hours seventh-graders do homework each week. There are 297 boys and girls in seventh grade. If Cheryl randomly surveyed 50 girls in the entire school to find the number of hours seventh-graders do homework each week, describe why she would get a biased sample
Please help ASAP
Note that Cheryl wants to find the number of hours seventh grade boys and girls spend on homework each week.
There are multiple causes of a biased sample. Two of the most obvious ones I find are:
1. She's surveying girls, but she is trying to get data on the number of hours all seventh graders (boys and girls) spend.
2. She's surveying 50 girls from the entire school, although she is trying to get data on seventh graders only.
Aldo went to the store and purchased 8 notebooks for school. He gave the cashier a $20.00 bill and received$4.08. Each notebook cost the same amount. Describe the process you would use to find the cost of each notebook
Answer:
1.99 per notebook
Step-by-step explanation:
I did have an explanation here but someone *cough* *cough* laurenercsp6fpli deleted all my answers for no reason. But I did the math and I assure you that the answer is correct.
Jose wants to walk to the store from his house but he is not sure how far away it is. Find the distance between his house (-2, 3) and the store (4, 3). Each unit represents one mile.
Answer:
The answer is 0/6
I dunno if im correct
pls mark me as brainliest if im correct
Which inequality best represents that ice cream at −3°C is cooler than ice cream at 1°C? (4 points)
a
−3°C > 1°C
b
−3°C 3°C
d
1°C < −3°C
Answer:
-3° C < 1°C is the correct option.
Step-by-step explanation:
As we know that:
The inequality symbol '<' means 'less than'.The inequality symbol '>' means 'more than'.If someone says that something is cooler than the other thing, it indicates that it is lesser than the other based on its temperature.
As the ice cream at −3°C is cooler than ice cream at 1°C, it indicates that temperature -3° C < temperature 1°C.
Therefore, -3° C < 1°C is the correct option.
40% of what number = 18
Answer:
The answer is 45
Step-by-step explanation:
Follow the steps:
set it up:
18/? = 40%/100%
18 x 100= 1800
1800 divided by 40 equals 45
Hope this helps! :)
Helpppp Pleaseee....
Answer:
[tex] \frac{4 \sqrt{10} }{5} [/tex]
Step-by-step explanation:
[tex] \frac{8}{ \sqrt{10} } \times \frac{ \sqrt{10} }{ \sqrt{10} }[/tex]
[tex] \frac{8 \sqrt{10} }{ {\sqrt{10}}^{2} } [/tex]
[tex] \frac{8 \sqrt{10} }{10} [/tex]
[tex] \frac{4 \sqrt{10} }{5} [/tex]
Answer:
4√10/5
Step-by-step explanation:
8/√10
=8/√10 ×√10/√10
=8√10/√10√10
=8√10/10
=4√10/5 (ans)
=2.53 (approximately)
Which statement best describes the areas and perimeters of the figures below?
Figures 1 and 2 both have the same perimeter, but have different numbers of units inside of the shape.
They have the same area and same perimeter.
They have the same area but different perimeters.
They have different areas but the same perimeter.
They have different areas and different perimeters.
Answer:
they have different areas and different perimeters
The statement that described the areas and perimeters of the figures should be that they have different areas and different perimeters.
What is the perimeter?The perimeter refer to the closed path where it is surrounded, outlines for the two-dimensional shape for the one-dimensional length.
So here the perimeter of a circle should be known as the circumference.
Therefore, they have different areas and different perimeters.
Learn more about an area here: https://brainly.com/question/11508323
please help i begggggggggggggggg
Math 50 pts
Anyone know why brainly keeps on saying there are no matches for search even with things you know are on here like 2+2?
50 pts btw
Answer:
2+2=4
Step-by-step explanation:
Add two cookies with two cookies and how much cookies do you have four right.
And the answer is
HJ=3.5
Answer:
i guess brainly only aproves actual work and not silly things like that :/
Step-by-step explanation:
PLEASEE HELP.!! ILL GIVE BRAINLIEST.!! *EXTRA POINTS* DONT SKIP:((
Answer:
5/8
Step-by-step explanation:
Answer:
it was 3/8 inches longer than the shorter bug.
Step-by-step explanation:
3/8 inches longer.
Solve the inequality:
2x - 7<-5 or 10x + 5 285
Answer:
Inequality form: x < 1
Step-by-step explanation:
what's the multiplicative inverse of -1/10?
Answer:
Step-by-step explanation:
inverse is opposite so the opposite of -1/10 would be -10
Hope this helps :D
whoever answers this first gets marked brainliest
Is 1+4(3x-10)-12x equivalent to -9?
Answer:
No it is equal to -39
Step-by-step explanation:
Answer:
No
Step-by-step explanation:
1+4(3x+10)-12x
1+12x+40-12x --> distribute
41+0x --> add like terms
1+4(3x+10)-12x = 41 not -9
Alex knows 18% of the students surveyed at his school are dropped off by car, while 22% walk or ride bikes, and the rest ride the bus.
Answer:
B
Step-by-step explanation:
Alright last question i need. Please if you can write out the steps on how to do this.
Answer:
y= x* 4
Step-by-step explanation:
x*n= y
0* 4= 0
1* 4= 4
2* 4= 8
3* 4= 12
4* 4= 16
x* 4= y
y= x* 4
what is 8% as a fratction
Answer:
8/100 or in simplest form 2/25
Step-by-step explanation:
See above.
ASAP I need to know how to do these
1. idk
2. x^2+3x-4>0write 3x as a difference
x^2+4x-x-4>0
then factor out x from the expression
X x (x+4)-x-4>0
factor the negative sign
X x (x+4)- (x+4)>0
( x+4)x (x-1)>0
aneswer: (-∞ , -4) ( 1, + ∞)
A nutritionist collects data from 25 popular breakfast cereals. For each cereal, the number of calories per serving is plotted on the x-axis against the number of milligrams of sodium on the y-axis. The value of r for the resulting scatterplot is 0.83. Which of the following is a correct interpretation of this value?
a.Each additional calorie is predicted to add approximately 0.83 mg of sodium.
b.There is a positive relationship between calories and sodium. The relationship is weak.
c.There is a positive relationship between calories and sodium. The relationship is strong.
d.As the number of calories increases, the amount of sodium decreases. The relationship is strong.
Answer:
answer C
There is a positive relationship between calories and sodium. The relationship is strong.
Step-by-step explanation:
The following is a correct interpretation of this value is option c. There is a positive relationship between calories and sodium. The relationship is strong.
The Correct interpretation of the value:Since
A nutritionist collects data from 25 popular breakfast cereals.
The value of r for the resulting scatterplot is 0.83.
So based on this, we can say that there should be the positive relationship between calories and sodium.
And, due to this, the relationship is considered to be strong.
Hence the option c is correct.
Learn more about number here: https://brainly.com/question/17333923
What is the composition of the translations T(4, -3) ° T(-2, -6) (x, y) as one translation?
Answer:
im 1000000000900
Step-by-step explanation:
Answer:
T (2, -9)
Step-by-step explanation:
Which system is most easily solved by graphing and why?
Which system is most easily solved by substitution and why?
Which system is most easily solved by elimination and why?
a. 3m - 4n = 1; 3m - 2n = -1
b. y = 4x - 2; y - 3x = 0
c. y = x; y = -x
Answer:
System A should be solved by elimination because you can easily cancel out the 3m to solve.
System B should be solved by substitution. Since the an equation for the y value is given, you can easily substitute it into the other equation.
System C should be solved by graphing. You don't have to worry about any slopes or intercepts to graph. You can graph it using only whole numbers.
The dimensions of a rectangular prism is 24 ft 20 feet and 15 feet what is the volume
Answer: 7200
Step-by-step explanation: the formulae is w times l times h. So you just multiply them all together. 24x15x20= 7200
From a boat on the lake, the angle of elevation to the top of a cliff is 27°57'. If the base of the cliff is 128 feet from the boat, how high is the cliff (to the nearest foot)?
Tell whether the rates form a proportion.
32 notes in 4 measures; 12 notes in 2 measures
yes
or
no
Answer: no
Step-by-step explanation: the answer is no
Factor and solve the equation
[tex]v {}^{2} + 11v - 26 = 0[/tex]
Answer:
v=2 or V=−13
Step-by-step explanation:
Let's solve your equation step-by-step.
v2+11v−26=0
Step 1: Factor left side of equation.
(v−2)(v+13)=0
Step 2: Set factors equal to 0.
v−2=0 or v+13=0v=2 or v=−13
I need help doing these questions asking for two column proofs.
Answer:
1. SSS
2. ASA
3. SAS
4. SSS
5. AAS
6. ASA
7. SSS
8. SAS
Step-by-step explanation: