Answer:
10-9v
Step-by-step explanation:
2(5-8v)-5v
10-16v-5v
10-9v
Answer:
2(5-8v)-5v=10-21v
Step-by-step explanation:
2(5-8v)-5v
=10-16v-5v
=10-21v
2(5-8v)-5v=10-21v
A box of chocolates contains five milk chocolates, three dark chocolates, and fourwhite chocolates. You randomly select a chocolate. It is a milk chocolate or a dark chocolate.
Answer:
you randomly select and eat three chocolates
Answer:
there is a 5/12 chance its a milk chocolate and a 1/4 chance it's dark chocolate it's more likely chance it's a milk chocolate
Step-by-step explanation:
Determine the intercepts of the line.
y = -9. – 14
x-intercept:
y-intercept:
20+20 helpppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp
Answer:
40
Step-by-step explanation:
20+20=40 C:
Plz solve ill give brainliest to the first correct answer
Answer:
-3
Step-by-step explanation:
......................
$6,000 dollars is invested in two different accounts earning 3% and 5% interest. At the end of one year, the two accounts earned $220 in interest. Set up a systems of linear equations to model the amount of money invested and the interest earned.
Answer:
x + y = 6000
0.03x + 0.05y = 220
Step-by-step explanation:
Given that :
Total principal amount = $6000
Account A:
Let principal = x
Rate = 3% = 0.03
Account B:
Let principal = y
Rate = 5% = 0.05
Interest earned at after one year = $220
Amount invested :
x + y = 6000
Simple interest = principal x rate x time
Interest earned
(x * 0.03 * 1 ) + (y * 0.05 * 1) = $220
0.03x + 0.05y = 220
Guys please this has been stressing me out lately and my cousins want me to go to the park but I can’t
Answer:
1. 42.90
10. 23
11. 36.75
12. 55
14. 16.25
Step-by-step explanation:
I'm sorry I don't know the rest.
Blake's pool can hold 2.539 gal of water when full. If it takes 9 hours to fill the empty pool. How much water will be in the pool after 1 hour?
Answer:
0.2821 gal
Step-by-step explanation:
Since this is a direct and proportional relationship, we know that the ratio for 2.539 gal of water to 9 hours is the same as the ratio from the water in the pool after 1 hour to 1 hour. Therefore, we can simplify 2.539:9 into 0.2821111... I’m not sure what value you must round to, so I’ll assume it is to the nearest thousandth. Hence, our answer is 0.2821 gal.
I hope this helps! :)
Q2. 81 = 3k
PLEASE HELP !!
Answer:
27
Step-by-step explanation:
Which one? (The first answer gets Brainly) (HAS TO BE CORRECT)
Answer:
Cytoplasm
Step-by-step explanation:
Answer:
Cytoplasm
Step-by-step explanation:
25 POINTS!! ples help I will only give brainliest to people who explain cuz there is a lot who just put whatever
I DON'T WANT THE ANSWER ONLY EXPLAIN!!
==================================================
Explanation:
Let's say that p is the leading coefficient and q is the last term.
To list out the possible rational roots, we need to find the factors of p and q. Dividing said factors over one another will lead to all the possible rational roots.
In this case, the leading coefficient is -5. The factors here are:
-1, 1, -5, 5
List the negative values as well as the positive values.
The factors of -2 are:
-1, 1, -2, 2
Now divide each factor of q = -2 over each factor of p = -5. It's very easy to get lost here because there are going to be 4*4 = 16 divisions going on. I recommend using a table to keep everything organized. See the chart below.
Anything in a gray box is a possible rational root. If we list the unique items only, we get this list = { -1, 1, -1/5, 1/5, -2/5, 2/5 } which are all the possible rational roots.
Compare those items with your possible answer choices. The only match here is 2/5
So 2/5 is the only possible answer in this case.
Substitute 7 for xand evaluate the expression below.
9x-2x
Answer here
Answer:
The answer to this equation is 49
Step-by-step explanation:
9x-2x
9×7=63
2×7=14
63-14=49
Please help! I’ll give brainliest to whoever gets it right!
Answer:
3.62
Step-by-step explanation:
I am big brain and very smort
Answer:
362/ 100 or 3 62/100
Step-by-step explanation:
Natalie walked 3/5 mile in 1/2 hour . how fast did she walk in miles per hour
Answer:
(6/5) mph
Step-by-step explanation:
8=8v-4(v+8)
Solve this equation
Answer:
v = 10
Step-by-step explanation:
8 = 8v - 4(v+8)
Solve parenthesis
8 = 8v - 4v - 32
Subtract 4v from 8v
8 = 4v - 32
Add 32 on both sides
40 = 4v
Divide by 4 on both sides
10 = v
Can someone help I’ll give you the brainlyst
Answer:
Step-by-step explanation:
the rate per window is the slope or the uniform amount that the y values increase by
we can see that company A increases 25$ per window
we can see company B increases 40$ per window
and company C increases 35$ per window
so company B charges more per window because it has the greatest slope
When 20 is subtracted from five times a number, the result is the same as when 18 is added to three times the number. What is the number?
Answer:
Number is 19
Step-by-step explanation:
denote the number by x.
the line says:
5x - 20 = 18 + 3 x
Subtracting 3x form both sides
2x - 20 = 18
adding 20 to both sides
2x = 38
dividing both sides by 2
x = 19
Answer:
19
Step-by-step explanation:
let n = the number
5n - 20 = 18 + 3n
combine like terms in one of four different ways
2n = 38
n = 19
Can some one please help me with these problems
Answer:
yes
Step-by-step explanation:
ok
what is y=1/2x-10 Help me
Which is the inverse of the function a(d)=5d-3? And use the definition of inverse functions to prove a(d) and a-1(d) are inverse functions
Answer:
[tex]a'(d) = \frac{d}{5} + \frac{3}{5}[/tex]
[tex]a(a'(d)) = a'(a(d)) = d[/tex]
Step-by-step explanation:
Given
[tex]a(d) = 5d - 3[/tex]
Solving (a): Write as inverse function
[tex]a(d) = 5d - 3[/tex]
Represent a(d) as y
[tex]y = 5d - 3[/tex]
Swap positions of d and y
[tex]d = 5y - 3[/tex]
Make y the subject
[tex]5y = d + 3[/tex]
[tex]y = \frac{d}{5} + \frac{3}{5}[/tex]
Replace y with a'(d)
[tex]a'(d) = \frac{d}{5} + \frac{3}{5}[/tex]
Prove that a(d) and a'(d) are inverse functions
[tex]a'(d) = \frac{d}{5} + \frac{3}{5}[/tex] and [tex]a(d) = 5d - 3[/tex]
To do this, we prove that:
[tex]a(a'(d)) = a'(a(d)) = d[/tex]
Solving for [tex]a(a'(d))[/tex]
[tex]a(a'(d)) = a(\frac{d}{5} + \frac{3}{5})[/tex]
Substitute [tex]\frac{d}{5} + \frac{3}{5}[/tex] for d in [tex]a(d) = 5d - 3[/tex]
[tex]a(a'(d)) = 5(\frac{d}{5} + \frac{3}{5}) - 3[/tex]
[tex]a(a'(d)) = \frac{5d}{5} + \frac{15}{5} - 3[/tex]
[tex]a(a'(d)) = d + 3 - 3[/tex]
[tex]a(a'(d)) = d[/tex]
Solving for: [tex]a'(a(d))[/tex]
[tex]a'(a(d)) = a'(5d - 3)[/tex]
Substitute 5d - 3 for d in [tex]a'(d) = \frac{d}{5} + \frac{3}{5}[/tex]
[tex]a'(a(d)) = \frac{5d - 3}{5} + \frac{3}{5}[/tex]
Add fractions
[tex]a'(a(d)) = \frac{5d - 3+3}{5}[/tex]
[tex]a'(a(d)) = \frac{5d}{5}[/tex]
[tex]a'(a(d)) = d[/tex]
Hence:
[tex]a(a'(d)) = a'(a(d)) = d[/tex]
14) A circular clock has a circumference of 80.5 meters. What the measurement of the radius, in meters, of the clock? Round to the neares tenth. SHOW YOUR WORK A) 3.2 B) 6.4 C) 12.8 D) 51.3. PLEASE ANSWER QUICK
Answer: 12.8
Step-by-step explanation:
Divide 80.5 by pi then divide by 2
Which values could be the values of x and y?
Answer:
1 3/4, 9 1/4
Step-by-step explanation:
continue the pattern
I got 24 miles for each kind of gas in my car which one of the following is a equivalent radio of miles to gallons.
A. 48 to 2
B. 2 to 48
C. 1 to 24
D. 3 to 240
I believe that the answer is B
On a coordinate plane, a vector has an origin (0, 0) and terminal point (8, 7).
Which description of the vector shown is correct?
The magnitude is 15, and the direction angle is approximately 49°.
The magnitude is 15, and the direction angle is approximately 41°.
The magnitude is StartRoot 113 EndRoot, and the direction angle is approximately 49°.
The magnitude is StartRoot 113 EndRoot, and the direction angle is approximately 41°.
Answer:
D. The magnitude is StartRoot 113 EndRoot, and the direction angle is approximately 41°.
Step-by-step explanation:
The correct description of the vector is that the magnitude is √(113) and therefore the direction angle is 41°.
What is the magnitude of the vector?The magnitude of the vector is the length of the vector which can be calculated from the coordinate of its endpoint.
Let (x1,y1) and (x2,y2) are the coordinate of the two endpoints of a vector V.
The magnitude of the vector= |V|= √(y2-y1)²+(x2-x1)²
We have,
Origin of vector = (0,0)
And,
Terminal point = (8, 7)
Here,
a = 8 and b = 7
Now,
To find the magnitude of the vector, we are going to use;
Formula, |v| = √(a² + b² )
|v| = √(8² + 7² )
|v| = √(64 + 49)
|v| = √113
So, the magnitude of the vector is √113.
Now,
Direction angle is find out using ;
Θ = tan ⁻¹ (b / a)
So, Here,
Θ = Angle Direction
Now,
Θ = tan ⁻¹ (7 / 8)
Θ = 41°
Therefore, the proper description of the vector is that the magnitude is √(113) and also the direction angle is 41°.
Learn more about the magnitude of the vector here:
https://brainly.com/question/27708309
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1. In a class there are 2 boys to every 3 girls. How many girls would be in the class if there are 12 boys? (set up a proportion and solve, think about what two things you have and put them one over the other)
2. A boat traveled 27 miles in 2 hours. At this rate how many miles would the boat travel in 0.5 hour? (set up a proportion and solve)
3. Joe uses 6 grams of coffee beans to make 24 ounces of coffee. How many grams of coffee beans would be used for 288 ounces of coffee? (this problem has ounces but it also gives you three numbers already)
4. A recipe says to use 3 cups of flour for 48 cookies. How many cups of flour would be used to make 72 cookies?
5. A man walks 4 miles in 1.5 hours. How many hours would it take the man to walk 10 miles?
6. It costs $22.50 for 5 pounds of salmon. How much would it cost for 8 pounds of salmon?
Answer:
1. 12 boys,
5. 15 hours
6. 36
Im not so sure on the others, Gl!
The fraction 2 5/8 is equivalent to which of the following decimal numbers? pls help ill mark you the brainlyest
A 2.58
B 2.625
C 2.63
D 2. 6
For brainliest :)
Oml i need more characters
There :)
Answer:
Imfaooooooo
Step-by-step explanation:
Hope this helps or brightens your day! Please consider marking brainliest! Always remember, your smart and you got this! -Alycia :)
Answer:
characters for what?
anyways....I need brainiest! :P
HELP IM CONFUSED I WASNT AT SCHOOL
Hellppppp I will mark brainliestttt
Answer:
1/4
Step-by-step explanation:
2(4 + 7) − 8 ÷ 2 whats the answer
Answer:
your answer is 18 look below for an explanation!
Step-by-step explanation:
please just trust me i know for a fact its right plz leave a thx and may i please have brainliest?
because 2(4+7)= 8+14= 22. 8/2= 4. 22-4=18.
I needddd helpppppppp
Answer:
its the second one
Step-by-step explanation: