Answers
Answer:
It's C
Step-by-step explanation:
Related Questions
usebthe elimination method to solve the following system of equations
4x+y=13
5x-y=5
Answers
Answer:
x = -2, y = 21
Step-by-step explanation:
Let 4x + y = 13 to be equation1 {eqn1}
and let 5x - y = 5 to be equation2 {eqn2}
Using elimination method, you would try to make sure a particular unknown has the same value in both equation 1 and 2. This would make it easy for you to subtract one equation from the other.
Notice how the value of y is the same in both equations. That's a good sign.
But the signs aren't the same. Meaning y in eqn1 has a value of +1, and y in eqn2 has a value of -1. We need to make them similar.
So, we multiply the value of y in eqn1 by all the terms in eqn2. And, do pretty much the same thing by multiplying the value of y in eqn2 by all the terms in eqn1.
You would have:
-1 * (4x + y = 13)
+1 * (5x - y = 5)
This would result in;
-4x - y = -13 (eqn3)
5x - y = 5 (eqn4)
So, just subtract eqn3 from 4
You would have;
(5x - -4x) + (-y -- y) = (-13 - 5)
9x + 0 = -18
x = -18/9 = -2
and to find y;
just substitute the value of x into any of the 4 equations. let's try equation 1
Therefore;
4(-2) + y = 13
-8 + y = 13
y = 13 + 8 = 21
What is the slope of the line?
Answers
3.5" 12-11 9-10'8" Dt I Dt 7 LENGTH OF PIPE Det MATERIAL PI 8''PIPE STEEL SCH.40 FI 8''L.R.950 ELL B.W. F2 8 S.R.L - 13 A5 TEE А. В B С C D il 8 E RUN: 123/4" F G G Det a
Answers
3.5" 12-11 9-10'8" Dt I Dt 7 LENGTH OF PIPE Det MATERIAL PI 8''PIPE STEEL SCH.40 FI 8''L.R.950 ELL B.W. F2 8 S.R.L - 13 A5 TEE А. В B С C D il 8 E RUN: 123/4" F G G Det a
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Hannah has 10 puzzle magazines what percentage of Hannas magazines are word search magazines?
Answers
Step-by-step explanation:
Can you tell us how many word search magazines there are? Thank you,
sorry forgot to add a photo to the ones who answered my other one
Answers
Answer:
Step-by-step explanation:
8.5x16=136
Tina multiplies 46 times 23 2/3. Which statement is true about the product? Drag steps and expressions into place to explain and show how to evaluate a • b for a = 5 and b = 8.
Answers
Answer:
See solutions below
Step-by-step explanation:
The product of 46 and 23 2/3 is expressed as;
= 46×23 2/3
= 46 × 71/3
= (46×71)/3
= 3266/3
= 1088.67
Given a•b
If a = 5
b = 8
a•b =5•8
a•b = 40
Please help!!!!! will give you brainliest! im tyna pass math class
Jackson plans to go to the school fair. The price to get into the fair is $7.50, and each ride costs an additional 99 cents. If he can spend at most $35.00 at the fair, write an inequality that can be used to solve for r, the number of rides Jackson can go on, and what is the maximum number of rides he can go on?
Answers
Answer: $7.50 + .99 8.50
Step-by-step explanation: 8.50 x 4 = 34 and it is close to 35.
Find the 5th term in the sequence described by 3n - 2. (1 point)
O 13
O 17
07
0-13
Answers
Answer:
It's 13
Step-by-step explanation:
the fifth term is n. do 3*5=15 and then subtract 2 to get 13!
The equation 3x + 2 = 29 is modeled below.
Which is the first step in solving the equation for x?
Answers
Answer:
Subtract 2 from both sides.
Step-by-step explanation:
Remember to do the opposite of PEMDAS. PEMDAS is the order of operation, and stands for:
Parenthesis
Exponents (& Roots)
Multiplication
Division
Addition
Subtraction
> Also, note the equal sign, what you do to one side, you do to the other side of the equation.
First step is to subtract 2 from both sides of the equation:
3x + 2 (-2) = 29 (-2)
3x = 29 - 2
3x = 27
The second step is to divide 3 from both sides of the equation:
(3x)/3 = (27)/3
x = 27/3
x = 9
~
Answer:
The first step is subtracting the two on both sides.
Step-by-step explanation:
You arent exactly following PEMDAS in this equation, but you are still in a way. Before going on to x you need to go on to the numbers first. 3x would be equal to 27.
Is the answer true?
Answers
Answer:
but I'm not sure
yes I think it is true
HELP NOW !! The gravitational force that an object of mass m, has with another object of mass , can be found using the formula
F=G
F = the magnitude of the gravitational force between the two objects
G= the gravitational constant
m = the mass of the first object
me the mass of the second object
-= the distance between the two objects
Draga term to each box to show the gravitational force equation when solving for me.
Gm
Fm
ma
G
Answers
Answer:
M₁=Fr²/GM₂
Step-by-step explanation:
The original formula is
F = GM₁M₂/r²
Rearrange it so M₁ is isolated:
Fr²=GM₁M₂
M₁=Fr²/GM₂
The sum of all the solutions of the equation (6x+k)(3x-11)=0 is 1. Find K
BRANLIEST PLUS 20 POINTS
Answers
Answer:
16
Step-by-step explanation:
6x+k = 0
x = -k/6
3x-11 = 0
x = 11/3
-k/6 + 11/3 = 1
k - 22 = -6
k = 16
The value of k is "8".
Find K:[tex](6x+k)(3x-11)=0\ \ is \ \ 1 \\\\K=?[/tex]
[tex]\to (6x+k)(3x-11)=0 \ \ is \ \ 1 \\\\\to (6x+k)=0\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ and \ \ \ \ \ \ \ \ \ \ \ \ \ \ (3x-11)=0\\\\\to 6x=-k\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ and \ \ \ \ \ \ \ \ \ \ \ \ \ \ 3x=11\\\\\to x=-\frac{k}{6}\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ and \ \ \ \ \ \ \ \ \ \ \ \ \ \ x=\frac{11}{3}\\\\[/tex]
[tex]\to - \frac{k}{6}+ \frac{11}{3}=1\\\\\to \frac{-2k+ 22}{6}=1\\\\\to -2k+ 22=6\\\\\to -2k =6-22\\\\\to -2k =-16\\\\\to k=\frac{16}{2}\\\\\to k=8[/tex]
Therefore, the final value of k is "8".
Learn more about the find k here:
brainly.com/question/20041760
Can someone help me?
Answers
Answer:
with what
Step-by-step explanation:
dont see nothinfg
Answer:BD equals CE? Are lines parallel
Step-by-step explanation:
Substitute in a = 5 and b=-4 into the formula C = 3a + 2b. What is the value of C?
Answers
Answer:
Step-by-step explanation:
c=(3x5)=(2x-4)
c=15+-8
c=7
PLS MARK AS BRAINLIEST!
Answer:
-1
Step-by-step explanation:
3 times a which a is 5 it becomes 15 and
2 times b which b is -4 it becomes -16
so 3*5 + 2*(-4)=
15+(-16) and cause plus and minus gives you minus so
15-16= -1
The area of a rectangular wall of a barn is 132 square feet. Its length is 10 feet longer than twice its width. Find the length and width of the wall of the barn.
Answers
Length: 24 feet
Simplify.
3.4 × 42 + 6 ÷ 3 - (5.7 + 2.1)
A.
53.4
B.
58.6
C.
48.6
D.
60.2
Answers
Answer:
need help ....................
Answer:
I got 137 so I don't know what the answer is
Step-by-step explanation:
the product of 9 and the diffrence of 6 and 4 into a numerical expression
Answers
Answer:
9(6 - 4)
Step-by-step explanation:
9(6 - 4)
9 x 2 = 18
18 is your answer to the expression
hope this helps
hope this is right
Find the value. 0.54 x 102 =?
Answers
Answer:
its 55.08
Step-by-step explanation:
Ur just multiplying the same thing when u multiply other numbers buts it's just different bcs of the decimal.
HELP ME PLEASE!! PLEASE ANSWER AND EXPLAIN THANK U
Answers
In an arithmetic sequence, u1 = 1.3 , u2 = 1.4 and uk = 31.2.
7a. Find the exact value of Sk
Answers
Which expression is the same as (2 x 7) x 3 ?
Answers
Answer:
[tex]42x^{2}[/tex]
Simplify 1/8 - 1/9 x+3/4-2/3x
Answers
Answer:
7/8 - 7x/9
Step-by-step explanation:
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HHEEEEEEEELLLLPPPPPPPP 11 POINTS
Answers
y=mx+b
What does mx stand for in the equation y=mx+b
Answers
a+1.6=2.1
Can someone help me with this and can you also do the work to it that would be nice (:
Answers
Answer:
its 0.5
Step-by-step explanation:
just subtract 2.1 and 1.6
You have to bring the +16 over to the other side of 2.1 and turn the positive sign (+) into a negative (-)ex: 2.1 - 1.6
Now you have to subtract 1.6 from 2.1
So write:
2.1 - 1.6
a = 0.5
Select all the expressions that have a value of 180 when b = 4. o 876 – 179 + 957 - 87 O 336 12 62 + 120 0 516 - 24 ( 115 + 187 – 2,756 - 13
Answers
Answer: miata
Step-by-step explanation:
Suppose that you have 10 green cards and 5 yellow cards. The cards are well shuffled. You randomly draw
two cards without replacement.
G = the first card drawn is green
G2 = the second card drawn is green
a. P(G, and G2) -
b. P(At least 1 green)
C. P(G2G) -
d. Are G, and G2 independent?
They are independent events
They are dependent events
09
Answers
Answer:
Dependent
Step-by-step explanation:
because which ever coloured card you draw at first changes the probability of the second draw
Answer:
dependent
Step-by-step explanation:
the first card drawn
least common denominator of 2/5 and 3/10
Answers
ANSWER ASAP:
Shayla wants to buy some CDs that each cost $14 and a DVD that costs
$23. She has $65 that she is able to spend. Which equation can be used to
determine how many CDs Shayla could buy?
Answers
65 is the total money
23 is with the dvd
14 is how many she can buy
Write a slope-intercept form of the equation of the line passing through the points(-1,-5) and(-3,5).