Answer:
A.
Step-by-step explanation:
Answer:
a.12
Step-by-step explanation:
4.8x2.5=12
Hello!, All I wanted to ask was what is the answer to this question “Evaluate 9 + 7 x 5”
AND what does Evaluate mean?
Answer:
the answer is 44 and evaluate is just a fancy word for solve i believe
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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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]
What is a rational number and how do you know?
. You have 17 birthday gifts! 9 came from your
family, the rest came from your friends. How many
gifts did your friends give you?
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
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.
What is 12 × 24??????????????????
Answer: 288
Step-by-step explanation:
um what
Answer:
12 × 24 = 288.
Step-by-step explanation:
hope this helps :)
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
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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.
fuihiudfgsguyfguygdfuys
send help
Answer:
a.2,3,4
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
A long-distance runner can run 11 miles per hour. How many hours will it take
the runner to run 44 miles?
Answer:
4 Hours.
Step-by-step explanation:
If the run 11 miles in a hour, then do 11 times as many hours.
11 x 4 = 44.
graph the following rule y<_ 2/3x - 1
Look at the graph I added here
Solve v= f(c+K) for K
Answer:
K = v /f − c
Step-by-step explanation:
hey can anyone pls answer dis math question rq!
Answer:
9 inchesStep-by-step explanation:
Original size = 6 ftScale factor = 1/8Clone = original * scale factor
Clone size
6 ft*1/8 = 3/4 ftConverted to inches
1 ft = 12 in3/4 ft = 3/4 * 12 in = 9 inEnter 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%
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:
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.
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. :)
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
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]
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
Pleaseeeeeee helpppppppppb
For a recent season in college football, the total number of rushing yards for that season is recorded for each running back. The mean number of rushing yards for the running backs that season is 790 yards. One running back had 1,637 rushing yards for the season, which is 2.42 standard deviations above the mean number of rushing yards. What is the standard deviation of the number of rushing yards for the running backs that season?
(A) 250 yards
(B) 300 yards
(C) 350 yards
(D) 400 yards
(E) 450 yards
Answer:
(C) 350 yards
Step-by-step explanation:
From available information
Mean = 790
1 running back = 1637 yards
Standard deviation above mean = 2.42
Using formula
z =( x - mean)/sd
2.42 = (1637-790)/sd
2.42 = 847/sd
We cross multiply
2.42sd = 847
Divide through by 2.42
Sd = 847/2.42
Sd = standard deviation = 350
So our answer is 350 and therefore option c.
solve the equation. -3x^2=12x+12
a.) no real solution
b.) x= -2
c.) x= 2
d.) x= -2 and x=2
Translate the sentence into an inequality.
The sum of a number times 10 and 16 is at most 28.
Use the variable c for the unknown number.
Given:
The sum of a number times 10 and 16 is at most 28.
To find:
The inequality for the given statement.
Solution:
Let the unknown number be c.
A number times 10 = 10c
Sum of a number times 10 and 16 = 10c + 16
At most 28 = Number should less than or equal to 28.
The inequality for given sentence is
[tex]10c+16\leq 28[/tex]
Therefore, the required inequality is [tex]10c+16\leq 28[/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!
Which of the following gives an equation of a line that passes through the point (3.-) and is
parallel to the line that passes through the origin and point (-2, -12)?
Answer:
A goes through the points
Step-by-step explanation:
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