which is the simplified form of the expression 3(7/5x+4) - 2(3/2 - 5/4x)?
A. -39/5x - 11/2
B. 67/10x + 9
C. 3/10x + 5/2
D. 15 + 76/10x
Answers
Answer:
B. [tex]\frac{67}{10} x + 9[/tex]
Step-by-step explanation:
Simplify the expression. Remember to go by the order of operations, or PEMDAS.
1) First, distribute the numbers outside of the set of parentheses to the terms inside the set of parentheses next to them. Then, simplify the fractions.
[tex]3(\frac{7}{5} x + 4) -2 (\frac{3}{2} -\frac{5}{4} x)[/tex]
[tex]\frac{21}{5}x + 12 - \frac{6}{2} + \frac{10}{4} x[/tex]
[tex]\frac{21}{5} x + 12 - 3 + \frac{10}{4} x[/tex]
2) Finally, combine like terms. (This means to add or subtract constants and to add or subtract terms with the same variables.) You may need to convert terms to the same denominator in order to do so easier. Then, reduce the fraction.
[tex]\frac{21}{5} x + 9 + \frac{10}{4}x \\\frac{84}{20}x + \frac{50}{20}x + 9 \\\frac{134}{20}x + 9 \\\frac{67}{10}x + 9[/tex]
Thus, the answer is [tex]\frac{67}{10} x + 9[/tex].
Answer:
B. 67/10x + 9
Step-by-step explanation:
Related Questions
f(-4); f(x) = x2 + x - 4
Answers
Answer: 8
Step-by-step explanation: In this problem,
we're asked to find f(-4) or the value of the function when x = -4.
To find the value of the function when x = -4,we simply plug in a -4 for
the x in our function and we have (-4)² + (-4) - 4 or 16 + -4 - 4 which is 8.
So f(-4) = 8.
6.37x10^-2
Thanks to anyone who answers this.
Answers
Answer:
6.37 x 10^-2 =0.0637
ILL GIVE U BRAINLYIST
Answers
Answer:
B rectangle
Step-by-step explanation:
HELP!!!!
Given that x=6 and y=-4, evaluate each of the following expressions:
A. 5x/3y+x
B. 2x (square) - y (cube)
Answers
Answer:
A. 5x/3y+x=5×6/(3×-4)=30/-12=-10/4=-5/2
B. 2x (square) - y (cube)=2×6²-(-4)³=72--64=72+64=136
B: 2(6)^2-(-4)^3 = 136
Substitute the value given as x and y into your expression. For A. , order of operation matters. I assumed the “+x” is part of the denominator.
Please help!!
You roll a die as your friend records the outcomes. You rolled the die 20 times and 11 rolls were 3. Is this normal? Why or why not
Answers
This is a binomial distribution. Use BINS to determine if this is binomial.
B - binary?
I - independent?
N - number of trials
S - probability of success
B - yes, 3 or not a 3
I - yes, past rolls do not impact future rolls
N - 20 trials
S - prob success 1/6
Use binompdf on your calculator to find out the probability. To access, 2nd —> vars —> binompdf
Binompdf(20 (trials), 1/6 (p), 11 (x)) = 8.97x10^-5
The probability to roll a 3 11 times is .0000897. The chances are very low, making this not normal.
solve: |2x-1| ≥ 4x+3
Answers
Step-by-step explanation:
consider the sign as equals then
move 2x right side 3 on left
solve it
answer is 2
Question is: 2x - 1 >= 4x + 3
First, join the like terms together.
-> So 2x moves into 4x, meaning it becomes negative -2x on the other side.
-> The number 3 moves into the other side which also becomes negative.
Now the equation will look like this:
- 3 - 1 >= 4x - 2x
- 4 >= 2x
Put 2 on the other side with - 4, and it will divide (not plus or minus as 2 was combined with an unlike term).
It looks like this now:
- 4/2 >= x
- 2 >= x
This is the answer.
PLEASE HELPPPPPPPPPPPPPPPPPPPPPPPpp
Answers
Answer:
12-2=10
Step-by-step explanation:
Your welcome! :D
32x76x4x-9÷42=?
1=3
2=3
4=4
5=4
6=?
Answers
Answer:
32x76x4x-9÷42= 9727
6= 5
I'm not sure...
Answer:
-2084 4/7
Step-by-step explanation:
32×76=2432×4=9728×-9=-87552÷42=2084 4/7
Simplify the following:
a) 3^2x3^2
b) 7x7^4
c) 10^9/10^7
d) 5^8/5
Answers
Answer:
see attached
Step-by-step explanation:
pleass see attached
HELP PLZZ I would really really appreciate it
Answers
Answer:
31
Method:
X + 21 = 52 is the same as 52 - 21 = x. 52 - 21 = 31 so x = 31
In algebraic equations, you always want to isolate the variable (x) so To do that you would subtract 21 from both sides, and then you would do 52 - 21 = 32
x + 21 = 52
-21 = -21
x = 31
Please help me with thisss
Answers
Answer:
(x, y) = (-2, -3)
WORK:
2x + 4y = -16 =
-2x + 2y = -2 =
(^ the two’s cancel out) =
6y = -18 =
(^ you need to divide 6 on both sides to get just y) =
6y/6 = -18/6 =
(^ the six’s cancel out) =
y = -3 =
(^ now you have to plug this in to get x) =
2x + 4(-3) = -16 =
2x - 12 = -16 =
(^ you need to add 12 on both sides to get rid of it on the left side to add it to -16 on the right side) =
2x = -4 =
2x/2 = -4/2 =
(^ now you divide 2 on both sides again to get just y, and they will cancel out) =
x = -2 =
THEREFORE YOU GET (-2, -3)
Washington Middle School is painting a circle on their playground with a radius of 12 feet. What will be the total area of the circle, in square feet?
Answers
Answer: circle
A=452.39ft2
R radius 12
A=πr 2=π. 12 ‘2=452.38934ft’2
(x+8)^2 is subtracted from 3x+4?
Answers
Answer:
Step-by-step explanation:
If you mean:
3x+4-(x+8)^2, then
3x+4-(x^2+16x+64)
3x+4-x^2-16x-64
-x^2-13x-60
Answer:
-x^2-30x-60
Step-by-step explanation:
What type of angle is this?
A. Straight angle
B. Supplementary
C. Complementary
Answers
Answer:
Step-by-step explanation:
If sum of two angles are 90, then they are complementary angles
x = 90 - 51 = 39
Haille used a birthday check her mother gave her to start her savings account.Sheplans to save $25per month at well. After 9 months,Hailsham $300.
Answers
Answer:
yet
Step-by-step explanation:
ya im sorry i don't know
21x just a random number
Marcus and Mary have £30 between them. The amount of money Marcus has compared to Mary is in the ratio 1:5. How much money would Mary have?
Answers
Answer:
25
Step-by-step explanation:
30÷6=5
5×5= 25
.........
can someone explain how i find the missing angle on this thing
Answers
Answer:
70°
Step-by-step explanation:
a + 90 + 20 = 180 {Angles in straight line}
a + 110 = 180
a = 180 - 110
a = 70
Write an expression equivalent to 46x + 12), and state the property you used to write it.
Answers
Answer:
2(23x+6) is correct answer
75%of 124 is what number
Answers
Answer:
75% of 124 is 93
Step-by-step explanation:
124 * 75%
= 124 * [tex]\frac{3}{4}[/tex]
= 31 * 3
= 93
Answer:
93
Step-by-step explanation:
75 / 100 x 124 = X
9300/ 100 = x
x = 93
f(5) = ? It is not 5 as I tried at, and not f5
Answers
Answer:
ALT + F5
Step-by-step explanation:
Answer:
where is the equation?
( iready math ) Macy's aunt makes raspberry jam using 6 tablespoons of sugar and 8 tablespoons of raspberries. What is the ratio of tablespoons of raspberries to tablespoons of sugar?
8 to 14
8 to 6
6 to 14
6 to 8
Answers
Answer:
8 to 6
Step-by-step explanation:
The question is asking what is the ratio of "tablespoons of raspberries" TO ratio of "tablespoons of sugars".
= 8 tablespoons of raspberries TO 6 tablespoons of sugar
= 8 (tablespoons of raspberries) TO 6 (tablespoons of sugar)
= 8 TO 6
The ratio of tablespoons of raspberries to tablespoons of sugar should be considered as the 8 to 6.
Calculation of the ratio:Since Macy's aunt makes raspberry jam using 6 tablespoons of sugar and 8 tablespoons of raspberries.
So here the ration be like
= 8 raspberries tablespoons to 6 tablespoons of sugar
= 8 to 6
hence, the second option is correct.
Learn more about ratio here: https://brainly.com/question/17642715
hellooo anyone wanna help??
Answers
Answer:
The answer is B
Step-by-step explanation:
[tex]\frac{x}{3}[/tex]+7>28
[tex]\frac{x}{3}[/tex]>28-7
[tex]\frac{x}{3}[/tex]>21
x>21*3
x>63
Which choices are equivalent to the expression below?
Answers
Answer:
b d and e
Step-by-step explanation:
just simplify or modify each answer and you'll see which equate to 4 root 6. takes 2 mins.
A triangle has two side of length 3 and 7. The third side of this triangle must not be shorter than (blank) or longer than (blank)
Answers
Answer:
The sum of two side lengths of a triangle must be greater than the length of the third.
So, if two side lengths are 3 and 7, the length of the third side must be less than 10 units.
However, it cannot be shorter than 4 units, as 3 + 4 = 7.
So your answer is: The third side of this triangle must not be shorter than 4 or longer than 10
Let me know if this helps!
PLEASE HELP ILL GIVE BRAINLESS IM GOING TO FAIL
Answers
AD= 23
DC= 23
AC= 46
The median means both sides of the line AC are equal.
Therefore: x+ 3 = 2x-17
and we can solve this for x
Subtract x from both sides
x-x = 2x-x -17
3 = x -17
Add 17 to both sides
3 +17 = x -17+17
20 = x
The length of AD is x + 3, replace x with 20:
20 + 3 = 23
The length of DC is the same as AD (because they’re separated by the median) so DC= 46
AC is the length of AD + DC,
23+23= 46.
AC= 46
Solve for x. Round to the nearest tenth.
Answers
Answer:
Step-by-step explanation:
Youre given the adjacent and hypotenuse, so you can use cosine. SOHCAHTOA
cos(37) = 48/x
x = 60.1
what is the profits?,plz help
Answers
Banana: 8.34
Chocolate: 6.90
C Chips: 5.46
Oatmeal: 5.75
Pecan: 11.50
Pumpkin: 13.80
Snick: 4.89
Vanilla: 5.18
Equation used- ($ * 0.15)+$
Do the ratios 7/3 and 6/2 form a proportion.
Yes or no
Answers
Answer:
no it not really the same
Step-by-step explanation:
Answer:
No they are not proportional
Step-by-step explanation:
You first cross multiply
since the products do not match they are not proportional
If you have any more quesitons feel free to ask - Mark
sian thinks of a number.
it's value is increased by 25%.
express the original number as a percentage of the increased number
will give brainliest
Answers
Answer:
80%
Step-by-step explanation:
original: 1
Increase 25%: 1.25 if this number becomes 1
1 : 1.25 = x : 1
x = 1 / 1.25 = 0.8 (80%)
check: 0.8 x 1.25 = 1
i need help with 9th grade work
Answers
Answer: h(-1) is -3.
Step-by-step explanation: Given that the input of the function is -1, we can subsitute that for x.
2(-1) - 1
= -2 - 1
= -3.
Answer:
h (-1)
-3
Step-by-step explanation:
h (-1) = 2 (-1) - 1
simplify 2.. (-1) - 1
answer= -3