Answer:
-0.4
Step-by-step explanation:
Answer:
-0.4
Step-by-step explanation:
you just need to devide 2 and 5 or you can multiply the whole thing by 2x so it's 4/10 and than devide if you find it easier
b) Find the value of
4(a – 3b) when a = -8 and b = 1/3
Answer:
-36
Step-by-step explanation:
4(-8-3*(1/3)) = 4(-8-1) = -36
2. What is the equation of a line that is passing through the point (8,11) and is perpendicular to y=2x+1.
Answer:
u need to substitute (8,11) in the equation because the line passses through that point
i am about to SCREAM!!! i need help
For the following inequality, find a solution for the variable. Show all of your work and use complete sentences to explain the solving process that you used to find a solution for the inequality. Be sure to include at least two terms from the word bank.
Word Bank
sum difference product quotient
equal variable solution inverse
add subtract multiply divide
more than less than greater than inequality
greater than or equal to less than or equal to equation negative
x + 4 < 1
Answer:
x<5
Step-by-step explanation:
x+4<1
x<+1-4(in this situation +1-4 is kinda like saying -4+1 so you add them)
{x<5}
(thanks and sorry and welcome)
Answer:
For the inequality statement, x ≤ -3, multiply each side of the inequality by the reciprocal of . The solution is x ≤ -12.
Step-by-step explanation:
[tex]\frac{4}{1}[/tex] · [tex]\frac{1}{4}[/tex]x ≤ -3 · [tex]\frac{4}{1}[/tex]
fuihiudfgsguyfguygdfuys
send help
Answer:
a.2,3,4
Step-by-step explanation:
1) y = 6x − 11 −2x − 3y = −7 4) −3x − 3y = 3 y = −5x − 17 7)−4x + y = 6 −5x − y = 21 8) −7x − 2y = −13 x − 2y = 11 18) −2x + 6y = 6 −7x + 8y = −5 My teacher started a new unit and i wasn't hear to get the teaching so i chose some random problems and hopefully one of them is easy enough for you to teach me how to do it
Answer:
See Explanation
Step-by-step explanation:
1.
Given
[tex]y = 6x - 11[/tex]
[tex]-2x - 3y = -7[/tex]
Solve for x and y
In the first equation, we have: [tex]y = 6x - 11[/tex]
Substitute [tex]6x - 11[/tex] for [tex]y[/tex] in the second
[tex]-2x - 3y = -7[/tex]
[tex]-2x - 3(6x - 11) = -7[/tex]
[tex]-2x - 18x + 33 = -7[/tex]
[tex]-20x+ 33 = -7[/tex]
[tex]-20x= -7-33[/tex]
[tex]-20x= -40[/tex]
Divide through by -1
[tex]20x = 40[/tex]
[tex]x = 40/20[/tex]
[tex]x = 2[/tex]
Recall that:
[tex]y = 6x - 11[/tex]
[tex]y = 6 * 2 - 11[/tex]
[tex]y = 1[/tex]
2,
Given
[tex]-3x - 3y = 3[/tex]
[tex]y = -5x - 17[/tex]
In the second equation, we have: [tex]y = -5x - 17[/tex]
Substitute [tex]-5x - 17[/tex] for [tex]y[/tex] in the first equation
[tex]-3x - 3y = 3[/tex]
[tex]-3x - 3(-5x - 17) = 3[/tex]
[tex]-3x + 15x + 51 = 3[/tex]
[tex]12x + 51 = 3[/tex]
[tex]12x=3 - 51[/tex]
[tex]12x=-48[/tex]
[tex]x = -48/12[/tex]
[tex]x = -4[/tex]
Recall that: [tex]y = -5x - 17[/tex]
[tex]y = -5 * -4 - 17[/tex]
[tex]y = -3[/tex]
3. Given
[tex]-4x + y = 6[/tex]
[tex]-5x - y = 21[/tex]
Add both equations to eliminate y
[tex]-4x - 5x + y - y = 6 + 21[/tex]
[tex]-9x= 27[/tex]
Solve for x
[tex]x = 27/-9[/tex]
[tex]x = -3[/tex]
Substitute -3 for x in the first equation: [tex]-4x + y = 6[/tex]
[tex]-4 * -3 + y = 6[/tex]
[tex]12 + y = 6[/tex]
[tex]y = 6 - 12[/tex]
[tex]y = -6[/tex]
4. Given
[tex]-7x - 2y = -13[/tex]
[tex]x - 2y = 11[/tex]
Make x the subject in the second equation
[tex]x - 2y = 11[/tex]
[tex]x = 11 + 2y[/tex]
Substitute 11 + 2y for x in the first equation
[tex]-7x - 2y = -13[/tex]
[tex]-7 (11 + 2y) - 2y = -13[/tex]
[tex]-77 -14y - 2y = -13[/tex]
[tex]-77 -16y = -13[/tex]
[tex]-16y = -13 + 77[/tex]
[tex]-16y = 64[/tex]
[tex]y = 64/-16[/tex]
[tex]y = -4[/tex]
Substitute -4 for y in [tex]x = 11 + 2y[/tex]
[tex]x = 11 + 2 * -4[/tex]
[tex]x = 11 -8[/tex]
[tex]x = 3[/tex]
5. Given
[tex]-2x + 6y = 6[/tex]
[tex]-7x + 8y = -5[/tex]
Multiply the first equation by 7 and the second by - 2 to eliminate x
The first
[tex]7(-2x + 6y = 6)[/tex]
[tex]-14x + 42y =42[/tex]
The second
[tex]-2(-7x + 8y = -5)[/tex]
[tex]14x - 16y = 10[/tex]
Add the resulting equations
[tex]-14x + 42y =42[/tex]
[tex]14x - 16y = 10[/tex]
------------------------------
[tex]-14x + 14x + 42y - 16y = 42 + 10[/tex]
[tex]42y - 16y = 42 + 10[/tex]
[tex]26y = 52[/tex]
Solve for y
[tex]y = 52/26[/tex]
[tex]y = 2[/tex]
Substitute 2 for y in [tex]-2x + 6y = 6[/tex]
[tex]-2x + 6 * 2 = 6[/tex]
[tex]-2x + 12 = 6[/tex]
[tex]-2x = 6 -12[/tex]
[tex]-2x = -6[/tex]
Solve for x
[tex]x = -6/-2[/tex]
[tex]x = 3[/tex]
How is solving literal equations like solving equations in one variable
Answer:
When given a literal equation, you will often be asked to solve the equation for a
given variable. The goal is to isolate that given variable. The process is the same
process that you use to solve linear equations; the only difference is that you will
be working with a lot more letters, and you may not be able to simplify as much as
you can with linear equations. This packet will hopefully show you the process in a
simple manner so that you will be able to solve literal equations yourself. See
examples before for the method to solving literal equations for a given variable:
Answer:
Step-by-step explanation:
To solve a literal equation means to rewrite the equation so a different variable stands alone on one side of the equals sign. We have to be told for which variable we want to solve.
Linear equations in one variable may take the form a x + b = 0 \displaystyle ax+b=0 ax+b=0 and are solved using basic algebraic operations. We begin by classifying linear equations in one variable as one of three types: identity, conditional, or inconsistent. An identity equation is true for all values of the variable.
I hope this helps. Sorry if I could not answer your question!
I need help with this
Answer:
w=8
Step-by-step explanation:
1(8)+12=2(8)+4
8+12=16+4
20=20
graph the following rule y<_ 2/3x - 1
Look at the graph I added here
Solve for u in terms of s, t, v, and w.
vt= -swu
u=
The value of the expression given in terms of u is -vt / sw
What is an expression?Expressions in math are mathematical statements that have a minimum of two terms containing numbers or variables, or both, connected by an operator in between.
Given that, an expression, vt = -swu, we are asked to find the expression in terms of u,
vt = -swu
u = -vt / sw
Hence, the value of the expression given in terms of u is -vt / sw
Learn more about expression, click;
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PLS HELP ME
A. 90°
B. 180°
C. 80°
D. 100
Answer:
c 80
Step-by-step explanation:
by the process of elimination you can already tell that it's not 90° futhetmore 180° and 100° are way too much, you can guess these answers based on the size of it though to confirm it you should use the proper math equations, Don't forget that the angles should add up to 180 degrees meaning since there is 100° in the opposite side the answer is 80.
Answer:
I believe the answer is C.
Step-by-step explanation:
Same side interior angles tend to add up to 180 degrees, so I think you subtract 100 from 180. You get 80 degrees.
Enter the fraction as a decimal.
1
8
The fraction as a decimal is
Answer: 0.125
Step-by-step explanation:
Answer:
0.125
1/8
= 0.125
= 12.5%
I need help with this math problem plz help
Answer:
A
Step-by-step explanation:
When you solve the equation it gives you the solution and it matches with the graph
can someone please help me with this question
Answer: 140 ft^2
Step-by-step explanation:
Triangle:
A = 1/2bh
A = 1/2(6 • 4)
A = 1/2(24)
A = 12
Square:
A = bh
A = 16 • 8
A = 128
Add them
128 + 12 = 140 ft^2
Answer:
7.21 ft
Step-by-step explanation:I don't know if i did it right but this is what I got.
. You have 17 birthday gifts! 9 came from your
family, the rest came from your friends. How many
gifts did your friends give you?
Jamie's car gets 33.5 miles per gallon. How many miles can he travel on 16 gallons?
Answer:
536 Gallons
Step-by-step explanation:
If you multiply 33.5 times 16 you will get your answer
Please put brainliest.
6х + 17 = -7
justify each step
Answer:
x = -4
Step-by-step explanation:
Subtract 17 on both sides to get 6x = -24 then divide 6 to both sides to get your answer of x = -4
First, you need to get 6x by itself. So you would subtract 17 from both sides. After that you should have 6x= -24.Then you need to get x by itself. You divide 6 from both sides. The answer is x= -4.
Hope this helps!!
Lance is solving the equation 2(2x + 1) - (3x - 5) = 17. His steps are shown below: Step 1: 4x + 2 - (3x - 5) = 17 Step 2: 4x + 2 - 3x - 5 = 17 Step 3: x + 2 - 5 = 17 Step 4: x - 3 = 17 Did Lance make a mistake? If so, in which step did he make the mistake and what was his mistake?
Answer:
Lance made a mistake
His mistake was in step 2
Step-by-step explanation:
Yes, Lance made a mistake.
He made a mistake in step 2 of his solution.
The mistake he made was that he was supposed to open the bracket of -(3x-5) to give -3x + 5
The 5 is supposed to have a positive value and not a negative
Pls help i cant think rn
One angles of a linear pair is 10 more than two thirds the other angle. Find the measure of both angles.
20 points and brainliest who ever gets it right!
Answer:
just write it into a number problem instead of word problem, then I can solve it!! :)
Step-by-step explanation:
I can only solve it when there is a pic of it or if you write it in NUMBERS NOT WORDS. :)
What is 12 × 24??????????????????
Answer: 288
Step-by-step explanation:
um what
Answer:
12 × 24 = 288.
Step-by-step explanation:
hope this helps :)
Subtract −5x^2 −9x+8 from -6x^2+5
Answer:
-(x^2 - 9 x + 3)
Step-by-step explanation:
Simplify the following:
-(-5 x^2 - 9 x + 8) - 6 x^2 + 5
Factor -1 out of -5 x^2 - 9 x + 8:
--(5 x^2 + 9 x - 8) - 6 x^2 + 5
(-1)^2 = 1:
5 x^2 + 9 x - 8 - 6 x^2 + 5
Grouping like terms, 5 x^2 - 6 x^2 + 9 x - 8 + 5 = (-6 x^2 + 5 x^2) + 9 x + (5 - 8):
(-6 x^2 + 5 x^2) + 9 x + (5 - 8)
5 x^2 - 6 x^2 = -x^2:
-x^2 + 9 x + (5 - 8)
5 - 8 = -3:
-x^2 + 9 x + -3
Factor -1 out of -x^2 + 9 x - 3:
Answer: -(x^2 - 9 x + 3)
solve the equation. -3x^2=12x+12
a.) no real solution
b.) x= -2
c.) x= 2
d.) x= -2 and x=2
A refrigerator costs 525.50. What is the TOTAL COST of the refrigerator (including 6% tax)
Answer:
557.03
Step-by-step explanation:
525.50 + 525.50(.06)
525.50 + 31.53
557.03
Alternative method:
525.50(1.06)
557.03
The distance of planet Saturn from the Sun is 1.5 ⋅ 109 kilometers, and the distance of planet Venus from the Sun is 1.1 ⋅ 108 kilometers. About how many more kilometers is the distance of Saturn from the Sun than the distance of Venus from the Sun? A 0.4 • 10^8. B 0.4 •10^9. C 1.4 • 10^9. D 1.4 • 10^10
the distance is s mil lion
Answer:
million
Step-by-step explanation:
If you bring 2 pairs of shoes, 10 items of regular clothes, and 2 coats, how much will your bag weigh?
The weight of the bag =
Weight of 2 pairs of shoes + weight of 10 items of regular clothes + weight of 2 coats.
What is weight?A weight characteristic is a mathematical tool used when appearing a sum, critical, or average to provide some factors extra "weight" or impact on the result than different factors within the equal set.
What is the value of weight?
Weight Value is the basis of the overall progress calculation processes used to determine the weight of each phase in the project. It is measured based on the distribution of weight values and obtained by multiplying the weight value of each task in the project.
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who can answer this?????
Answer:
All is the answer
Step-by-step explanation:
Answer:
Its all.
Step-by-step explanation:
Natural numbers mean terminating numbers.
I hope this is helpful
Answer:
im confused
Step-by-step explanation:
Answer:
Do you need me to answer somthing PLEASE tell me if you do!!!!!
THANK YOU FOR THE POINTS!!!!!
please tell Step-by-step explanation:
A middle school took all of its 6th grade students on a field trip to see a symphony at a theater that has 1660 seats. The students filled 1577 of the seats in the theater. What percentage of the seats in the theater were filled by the 6th graders on the trip?
Answer:
95%
Step-by-step explanation:
Solve for x it’s my homework need help.
Answer: 5.176 units
Step-by-step explanation:
x/20 = sin(15)
x = 20*sin(15) = 5.176 units
Can you pls help me with this question pls
Answer:
This is it ranked from least to greatest. 3/10 being the least
3/10
5/9
45/90
Pleaseeeeeee helpppppppppb