Answer:
x = -4
Step-by-step explanation:
2(3x + 7) = -49 + 39
6x + 14 = -10
6x = -10 - 14
6x = -24
x = -4
#3 find value of x
Answer only math
Answer:
x=130º
Step-by-step explanation:
90+40+50=180
180-50=130
212.65 x 10? = 21,265.0
10^2
10^3
10^4
Answer:
10^2
Step-by-step explanation:
When multiple decimals moves from left to right... in this case 2 places.
4. A line passes through the points (-7, 2) and (-3, -1). It also passes through the point (a, -7). What is the value of a?
Answer:
a=5
Step-by-step explanation:
-54/50 - 40/100 + 1.65=
Answer:
0.17
Step-by-step explanation:
1) Simplify 54/50 to 27/25
-27/25-40/100+1.65
2) Simplify 40/100 to 2/5
-27/25-2.5+1.65
3) Simplify
4.25/25
4) Simplify
0.17
plz help will mark you as brainliest(plz answer 42 and 43
Answer:
41. D, 42. B, 43. AStep-by-step explanation:
Sides are 120 m, 170 m, 250 m
41.S is the semi-perimeter and is equal to:
s = (a + b + c)/2 = (120 + 170 + 250)/2 = 270 mCorrect choice is D
42.The area is easy to calculate using the Heron's formula, since we have all three side lengths known.
Correct choice is B
43.Perimeter is:
P = a + b + c = 120 + 170 + 250 = 540 mCorrect choice is A
Writing What is 20% of 70? Use pencil and paper. Write a percent problem that asks you to solve for the whole. Write a problem that asks you to solve for the percent
is 20% of 70
(Type a whole number.)
Answer:
= 14
Step-by-step explanation:
So my way of doing it is to simply put 20% in decimal so
20= 0.20
Then multiply that by 70
0.20× 70 = 14%
There are probably other ways to do it but I find this way easier
what percent of 180 is 45
Answer:
81
Step-by-step explanation:
:)
Answer: 25%
Step-by-step explanation: I got it correct.
geometry, proving vertical angels are congruent
Amy cut 32 feet of chain into pieces that were each 1/4 ft long. How many of these pieces did Amy have after cutting the chain?
Answer:
She will have 8 pieces.Step-by-step explanation:
I divide 32 by 1/4Hope this helps :)
Pls make brainliest :3
And have an amazing day <3
Answer:
128 pieces can be made after cutting the chain
Solution:
Given that, Amy cut 32 ft of chain into pieces that were each 1/4 ft long
To find: Number of pieces after cutting the chain
From given,
total length of chain = 32 feet
length of 1 piece = 1/4 feet
Thus the number of pieces after cutting the chain can be found by dividing the total length of chain by length of 1 piece
number of pieces = total length of chain/length of 1 piece
Substituting the values, we get
number of pieces = [tex]\frac{32}{1/4}[/tex]
number of pieces = 32 x 4 =128
Thus 128 pieces can be made after cutting the chain
Multiple Transformations
What is the value of n?
n/3−5=12
Enter your answer in the box.
n = ?
Answer:
n = 51
Step-by-step explanation:
Given: x - 2 < 2. Choose the graph of the solution set.
Step-by-step explanation:
hope this helps.......
should be the first one on odssey
an outdoor and camping store pays a wholesale price of $25.85 for a fishing rod and sells it for $31.02 what is the precent markup
Write your answer
Answer:
30%
Step-by-step explanation:
I really need help please
Answer:
p<-12/5
Step-by-step explanation:
Answer:
Multiply each term in [tex]-\frac{5}{6}p > 2[/tex] by [tex]-\frac{6}{5}[/tex] to eliminate the fractions.
Inequality form:
[tex]p < \frac{-12}{5}[/tex]
Interval Notation:
(-∞, [tex]-\frac{12}{5}[/tex] )
Match each diagram with a description and an equation
Answer:
match each is in moon description and diagram
Answer: Uhh I dont see a diagram but maybe its my end.
Step-by-step explanation: PS. it might be my chromebook
Please help lots of points image explains everything thank you
Answer:
1050 miles (I think)
Step-by-step explanation:
hope the picture helps
how to find the domain and range of y=|x| ?
3. Factor each of the following polynomials using GCF and/or 2 binomials. Show your work. 4 points
A.5x^2 – 2x =
B.x^2 – 12x – 45 =
C.2x^2-x-15
D.9x^2-16
Answer:
See belowStep-by-step explanation:
A
5x² – 2x = x(5x - 2)B
x² – 12x – 45 = x² + 3x - 15x - 45 = x(x + 3) - 15(x + 3) = (x + 3)(x - 15)C
2x² - x - 15 = 2x² + 5x - 6x - 15 = x(2x + 5) - 3(2x + 5) = (2x + 5)(x - 3)D
9x² - 16 = (3x)² - 4² = (3x + 4)(3x - 4)Given :-
A.5x^2 – 2x = B.x^2 – 12x – 45 = C.2x^2-x-15 D.9x^2-16To Find :-
Factorised form into two binomials .Answer :-
A) 5x² - 2x
= x ( 5x -2 )
B) x² - 12x -45
= x² -15x + 3x -45
= x(x -15) +3( x -15)
= (x-15) ( x +3)
C) 2x² - x -15
= 2x² +5x - 6x -15
= x(2x +5) -3(2x +5)
= (x-3)(2x+5)
D) 9x² -16
=(3x)² -4²
= (3x+4)(3x-4) [using a²-b² = (a+b)(a-b) ]
Can someone helpp???
[tex](-1{2}{3} )x^{3}[/tex]
After talking with you here are two different options I think you are trying to ask:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
If you are talking about: [tex](\frac{-12}{3}) ^{3}[/tex]
Answer: -62
Explanation:
PEMDAS tells us we need to do the exponent first:
-12³ = (-12)³ = -1728
The parentheses are important so you cube the negative sign as well!
3³ = 27
-1728 / 27 = -62
[tex](\frac{-12}{3}) ^{3}[/tex] simplified is -62
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
If you are talking about (-1[tex]\frac{2}{3}[/tex])³
Answer: -[tex]\frac{125}{27}[/tex]
Explanation:
First, let us turn -1 and two thirds into a mixed number:
Ignoring the negative for now, we can 1 times 3 is 3. 3 plus 2 is 5. 5/3 is 5/3. Adding in the negative we get [tex]-\frac{5}{3}[/tex]
To cube it we must do:
([tex]-\frac{5}{3}[/tex])([tex]-\frac{5}{3}[/tex])([tex]-\frac{5}{3}[/tex])
3 times 3 (9) times 3 is 27
5 times 5 (25) times 5 is 125
So we have 125/27
For the negative, we have three - - -
Two cancel each other out, and we are left with one (-) so our answer is negative
(-1[tex]\frac{2}{3}[/tex])³ simplifed is -[tex]\frac{125}{27}[/tex]
(216/64) ^2/3 in its simplified form is equal to
(A) 3/2, (B) 9/4, (C) 2/3, (D) 1/2
PLS ANSWER WITH EXPLANATION
This answer should help.
Help pls very hard I can’t do it
Answer:
2+4f
Step-by-step explanation:
Distribute:
2(1+2f)= 2+4f
Hope this helps! :)
£20 is divided between Colin, Dan & David so that Colin gets twice as much as Dan, and Dan gets three times as much as David. How much does Colin get?
Answer:
£12Step-by-step explanation:
Let Colin - x, Dan - y, David - z.
We have:
x + y + z = 20x = 2yy = 3zSubstitute and solve for z:
2y + y + z = 203y + z = 203(3z) + z = 2010z = 20z = 2Now find x and y:
y = 3*2 = 6x = 2*6 = 12Answer:
£12
Step-by-step explanation:
Let the David's money be x
If David gets = x
Dan will get = 3x
Colin gets = 3x x 2
= 6x
So, the total money can be write as
[tex]x + 3x + 6x = 10x[/tex]
So, now let's find the amount of money which David have
[tex]10x = 20 \\ \frac{10x}{10} = \frac{20}{10} \\ x = 2[/tex]
So, David will get £2
And now let's find the amount of money which Colin will get
[tex]6x = 6 \times 2 \\ = 12[/tex]
He will get £12
Hope this helps you.
Let me know if you have any other questions :-):-)
are they parallel perpendicular or neither.
Answer:
parallel
Step-by-step explanation:
At the speeds shown in the table, how much farther could a black-tailed jackrabbit
run than a desert cottontail in 7 seconds?
Running Speeds
Animal
Speed
(feet per second)
Black-tailed
Jackrabbit
51
Desert
Cottontail
28
feet farther than a desert cottontail in 7
A black-tailed jackrabbit could run
seconds.
Answer:
animal
gkofb
jgfui
jffn
[tex]Solve : 3x = \frac{x}{2} - 5 \\ [/tex]
Correct answer will be mark as brainliest.
Answer:
-2
Step-by-step explanation:
As per the provided information in the given question, we have a linear equation. We have to find the value of x.
Here, we'll use transposition method to solve this linear equation.Basically, transposition method is used to solve a linear equation in one variable containing constants and variables. We just transpose the values from RHS to LHS by changing its arithmetic operators. In this way, we solve for the unknown value. During transposing the values, ( + ) changes to ( – ) and vice-versa ; ( × ) changes to ( ÷ ) and vice-versa.
Now, coming back to the question. We have,
[tex]\longmapsto \rm { 3x = \dfrac{x}{2}- 5} \\ [/tex]
Taking the LCM in RHS and performing subtraction.
[tex]\longmapsto \rm { 3x = \dfrac{x - 10}{2}} \\ [/tex]
Transposing 2 from RHS to LHS. Its arithmetic operator will get changed.
[tex]\longmapsto \rm { 3x \times 2 = x - 10} \\ [/tex]
Performing multiplication in LHS.
[tex]\longmapsto \rm { 6x = x - 10} \\ [/tex]
Transposing x from RHS to LHS. Its arithmetic operator will get changed.
[tex]\longmapsto \rm { 6x - x = - 10} \\ [/tex]
Performing subtraction of the terms in LHS.
[tex]\longmapsto \rm { 5x = - 10} \\ [/tex]
Transposing 5 from LHS to RHS. Its arithmetic operator will get changed.
[tex]\longmapsto \rm { x = \cancel{\dfrac{- 10}{5}}} \\ [/tex]
Dividing –10 by 5.
[tex]\longmapsto \underline{\boxed{\bf { x = - 2}}} \; \bigstar \\ [/tex]
Therefore, the value of x is –2.
Please explain how to solve this!
9/11 Divided by 3/2
[tex] \frac{9}{11} \div \frac{3}{2} [/tex]
Solution[tex]= \frac{9}{11} \times \frac{2}{3} \: \: \: \: \: \: \fbox{ gets \: reciprocal} \\ \\ = \frac{ \cancel9}{11} \times \frac{2}{ \cancel3} \\ \\ = \frac{3}{11} \times \frac{2}{1} \\ \\ = \frac{6}{11} [/tex]
[tex] \fbox \red{Hope This Helps}[/tex]
Please help! Geometry
Lines cut by transversal
Answer:
m<4=40º
Step-by-step explanation:
11x+8=12x-4
-x=-12
x=12
(11•12)+8+x=180
140+x=140
x=40
Write the given equation in standard form.
−7x−5y=3
Answer:
7x+5y=-3
Step-by-step explanation:
10. A gardener wants to pour a sidewalk around the outside of his 20- by 30-meter garden. The sidewalk will be
1 meter wide. How many square meters of sidewalk will he have?
30 m
20 m
(Hint: Subtract the area of the garden from the total area covered by
both the garden and the sidewalk. A = A, - A)
1m2!
w1m
Answer:
https://learning-ph.com/math/question7489744
pls check this site
Step-by-step explanation:
Answer:
104 m²
Step-by-step explanation:
There is a 1 m sidewalk around the garden
Then length = 30 + 1 + 1 = 32 m
and width = 20 + 1 + 1 = 22 m
Area = 32 × 22 = 704 m²
Area of garden = 30 × 20 = 600 m²
Area of sidewalk = 704 - 600 = 104 m²
WILL MARK BRAINLIEST!!!
Which statements about triangle JKL are true? Select two options.
A. M is the midpoint of line segment KJ.
B. N is the midpoint of line segment JL.
C. MN = 1/2 KJ
D. MN = 4.4m
E. MN = ML
It's B and C just did the test and got a 100
Answer:
b and c
Step-by-step explanation:
B AND C