Answer: -2
Step-by-step explanation:
ratios that are equivalent to 40:28
Answer:
10:7
Step-by-step explanation:
r + 8 - 5r = 2(4 - 2r) solve for r please
-4r + 8 = 8 - 4r
0 = 0 so it's like {}
Answer:
r = 0
Step-by-step explanation:
This is actually the first time I've actually had a equation with the variable equaling 0.
so first things first you have the equation:
r + 8 - 5r = 2(4 - 2r)
so you are going to add or multiply all the variable numbers together and the none variable numbers together like so:
r + (-5r) and (2*4) and (2* (-2r)) to get the equation looking like so:
8+ (-4r)= 8 -4r
you then add -4r to both sides to get this equation:
8+ ( -4r)= 8 -4r
+ 4r +4r
8 = 8 + r
you then subtract 8 from both sides to get r:
8 = 8 + r
-8 -8
0 = r
to check substitute the 0 into r in the equation:
r + 8 - 5r = 2(4 - 2r)
0 + 8 - (5*0) = 2(4- (2*0))
8 = 8
Tada!!!
Which of the following is true given that -4> -9? ОА. -4 is at the same place as -9 on a horizontal number line OB. -4 is the opposite of -9 on a horizontal number line OC. -4 is to the right of -9 on a horizontal number line OD. -4 is to the left of -9 on a horizontal number line Reset Sub
Answer:
ask someone i know a good app its called brainly
Step-by-step explanation:
yup
What is 3 groups of 1/8
Answer:
3/8
Step-by-step explanation:
The 3 groups of 1/8 will be 3/8.
What is Algebra?The analysis of mathematical representations is algebra, and the handling of those symbols is logic.
It is also known as the product. If the object n is given to m times then we just simply multiply them.
Given that: 3 groups of 1/8
Then the number 3 and 1/8 is multiplied. Then the expression will be
⇒ 3 × 1/8
⇒ 3 / 8
Then the 3 groups of 1/8 will be 3/8.
More about the Algebra link is given below.
https://brainly.com/question/953809
#SPJ2
NO JOKING AROUND OR I WILL REPORT WHO EVER DOES
A student has $78 in his checking account. If the student spends $12 on lunch, which number could be combined with the amount left in the account to make zero?
–90
–78
–66
–12
Answer:
Its 66 i just did a 50 question quiz and got it right
Step-by-step explanation:
Find an equation for the line below.
Help me please :(
Answer:
y=3/2x+5/2
Step-by-step explanation:
I used the Y2-Y1/X2-X1
In this equation you can see that there are 2 points (-5,-5) and (1,4)
If you substitute, you will get
4+5/1+5
9/6 and if you simplify this, you will get 3/2
Now that we have the slope, we just have to use y=mx+b
(I'm using the point (1,4)) 4=3/2(1)+b
4=3/2+b
5/2=b
Sorry this is the last one! Help for brainliest answer
Answer:
5, 6, 9, 15
Also:
Plz mark me brainliest :)
Answer:
3:5, 6:10, and 9:15
Step-by-step explanation:
Cami goes scuba diving. She descends 18 feet in 3 minutes. Which expressions represent the average rate at which Cami’s position changes in feet per minute?
Answer:
6 ft/min
Step-by-step explanation:
Theres a neat trick to note; whenever you say per think of it as a fancy word for divide, because the label is always gonna be a/b (a per b)
Therefore,
the rate of feet per minute will be the feet divided by the minutes;
18 feet in 3 minutes = 18/3 ft/min
Therefore the rate is 6 feet per minute.
IF you need an explanation on what average rate implies:
Note; the word average is not prudent to answer as its extraneous, however if there was more data like "Cami descends 18 ft in 3 min and Nami descends 9 ft in 3 minutes; whats the average rate at which they descend" then you'd have to add the two rates up and divide by two.
Hope this helps :)
PLEASE HELP ME FAST... WILL MARK AS BRAINLIEST IF GIVEN GOOD ANSWER
Answer:
22.1
Step-by-step explanation:
divide 16.9 by 13= 1.3
17x1.3=22.1
Please no fakes this is the last of my points please try really hard to figure out this problem. if you don't get it go to another person question then answer it please just dont say idk. im beggin you!!! :(
Answer:
A.
- Line 1 - Dead Sea
- Line 2 - Lake Assal
- Line 3 - Laguna del Carbon
- Line 4 - Death Valley
B.
Lake because it is closer to zero on a number line than Death Valley
C.
-8 < -282 < 0
Hope This Helps! And so sorry it tool me so long to answer!
Out of the 25 students in Mrs. Green's class 19 have a pet What percent of the students in Mrs. Green's class have a pet?
The percent of students in Mrs. Green's class that have a pet is _____%
Answer:
76%
Step-by-step explanation:
The Gwinnett fair is in town!! You and your friends decided to meet at the fair this weekend. You have earned $50 from math tutoring available to spend. Each ride costs $3 and each game costs $2. However, you don’t want to spend ALL your money on games and rides!
What are 5 possible combinations of rides and games that you could purchase without spending all of your money? Write your responses as ordered pairs (X,Y)
where (X = number of rides, Y = number of games)
For example: (2,3) means 2 rides and 3 games
Answer:
i tried but i dont understand sorry
Step-by-step explanation:
Which expression is equivalent to 8a + 20?
4(2a + 20)
4(2a + 5)
4(4a + 16)
4(4a + 5)
Answer:
4(2a+5)
Step-by-step explanation:
4 times 2a= 8a
4 times 5= 20
Write an equation for a line that passes through (3, -4) & has a slope of -3.
Answer:
The answer is
[tex] \huge y = - 3x + 5[/tex]
Step-by-step explanation:
To find an equation of a line when given the slope and a point we use the formula
[tex]y - y_1 = m(x - x_1)[/tex]
From the question we have
[tex]y + 4 = - 3(x - 3) \\ y + 4 = - 3x + 9 \\ y = - 3x + 9 - 4[/tex]
We have the final answer as
[tex]y = - 3x + 5[/tex]
Hope this helps you
Paola can run 300 meters in 15 seconds. If she runs at a constant rate,
how long does it take to run 400 meters?
A triangle can have sides of 12, 19, and 30.
True or false
Answer:
True
Step-by-step explanation:
According to the Triangle Inequality, the sum of any two sides of a triangle has to be greater than the third side. 12+19 = 31 which is more than 30 so a triangle can have sides of 12, 19 and 30.
Answer:
false
Step-by-step explanation:
Chen is bringing fruit and veggies to serve at an afternoon meeting. He spends a total of $28.70 on 5 pints of cut veggies and 7 pints of cut fruit. The food cost is modeled by the equation 5 v plus 7 f equals 28.70, where v represents the cost of one pint of cut veggies and f represents the cost of one pint of cut fruit. If the cost of each pint of fruit is $2.85, what is the approximate price of a pint of veggies? (Round to the nearest cent, as needed.)
PLEASE ANSWER ASAP!!!!
Answer:
Step-by-step explanation:
you suck
The sales tax in Texas is 8.25% and an item costs $400. How much is
the tax?
Answer:
Step-by-step explanation:
400*8.25%= $33 tax
Annie bought a gym membership that cost $50 when she signed up and
then she paid $10 each time she visited. If "V" represents the number of
times Annie went to the gym before she canceled her membership, which
of the following expressions best shows the total amount the gym
membership cost her?*
10V - 50
50v + 10
50 - 10v
V + 50 + 10
50 +10v
50 + 10/v
Answer:
50+10v should be the right answer.
Please answer correctly !!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!!
Answer:
5*35+5=180
Step-by-step explanation:
What is the value of the expression 2^2x2^-2x3^4x3^-4
Answer:
1
Step-by-step explanation:
the positive and negative exponents cancel out
I need help with this
Answer:
124 degrees
Step-by-step explanation:
x=24 so if you plug in the value and solve it is 124 degrees
No cheaters when I say steps I mean steps!!!! If you cheat you'll wish you didnt
I don't just want the answer I want the steps to get to the answer steps steps steps plss I'm dying right now I've been doing school all day and I'm freaking out please help and explain answer
Whats 10.53+14.5+6.9+6.3+6.8
Show all your work or else don't answer at all.
Helpppppp pleaseeeee
Answer:F(x)=3
Step-by-step explanation:
KK!
The sum of two numbers is twenty-five. One number is five less then the other number. Find the larger number
Answer:
15
Step-by-step explanation:
10 is 5 less than fifteen.
Sorry if its wrong
Find the value of x.
Answer:
x = 19
Step-by-step explanation:
The sum of both angles will be equal to a supplementary angle. A supplementary angle is when two angles add up to be 180°. Write an equation and solve for x.
3x + 5 + 7x - 15 = 180
~Combine like terms
10x - 10 = 180
~Add 10 to both sides
10x = 190
~Divide 10 to both sides
x = 19
Best of Luck!
Answer:
sorry i didn't find the value of x, but i did find the value of y. if that helps.
Step-by-step explanation:
y=a+5
What is the slope of the line . Khan academy. Need help . Explain if you can
Answer:
The slope is [tex]\frac{2}{5}[/tex], or 2 over 5.
Step-by-step explanation:
Slope = rise over run
Rise is 2
Run is 5
Slope is 2 over 5
Answer:
2/5
Step-by-step explanation:
Please Help Me ASAP!!!
if f(x)=6x^2-4 and g(x)=2x+2, find (f-g)(x).
Answer:
i need a picture or something
Step-by-step explanation:
Walmart is selling 3 lemons for $1.20.how many does 25 lemons cost
Answer:
10USD
Step-by-step explanation:
For each lemon: 1.20/3=0.4
for 25: 0.4*25=10USD
Help :/
Find the length of AB
A. 15
B. 20
C. 21
D. 24
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[tex] \frac{14}{12} = \frac{AB}{18} \\ [/tex]
[tex] \frac{7}{6} = \frac{AB}{18} \\ [/tex]
Multiply sides by 18
[tex]18 \times \frac{7}{6} =18 \times \frac{AB}{18} \\ [/tex]
[tex]3 \times 7 = AB[/tex]
[tex]AB = 21[/tex]
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Thus the correct answer is (( C )) .
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