Answer:
1) s > 6
2) d < 84
3) w >= 9
4) z <= 64
5) b < -18
What should be done to these equations in order to solve a system of equations by elimination?
-3x+2y=16
2x+5y=21
A. Nothing needs to be done, since they both equal have 2’s and 3’s for coefficients.
B. Multiply the first equation by 3 and the second equations by 2.
C. Multiply the first equation by 2 and the second equation by 3.
D. Multiply the first equation by 3.
Answer:
The answer is C.
Step-by-step explanation:
I did the test and got it right. :)
The correct is C = Multiply the first equation by 2 and the second equation by 3.
What is system of equations by elimination?The elimination method exists utilized to solve a system of linear equations. It is the most widely used and simple method as it concerns fewer calculations and steps. In this manner, we eliminate one of the two variables and test to solve equations with one variable.
if we'll multiply the first equation by 2 and second by 3 we will be able to solve the equation by elimination.
(-3x+2y=16) X 2 = -6x + 4y = 32
(2x+5y=21) X 3 = 6x + 15y = 63
the coeffients of x gets cancelled out on adding the new equations
4y+ 15y = 32+ 63
19y = 95
y= 95/19
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A jacket at a clothing store is being discounted by 10%. If the jacket was
originally priced at x dollars, which of the following expressions does NOT
represent the final price of the jacket before sales tax is added?
Answer: x( 1 - 0.10x)
Step-by-step explanation:
Find the measure of angle DFC
12+36÷ (6^2÷ 3^2)
??????
Given:
The expression is
[tex]12+36\div(6^2\div 3^2)[/tex]
To find:
The value of the expression.
Solution:
BODMAS: Brackets, orders, division, multiplication, addition and subtraction.
We have,
[tex]12+36\div(6^2\div 3^2)[/tex]
Using BODMAS, first solve the brackets.
[tex]=12+36\div(36\div 9)[/tex]
[tex]=12+36\div(4)[/tex]
Now, divide.
[tex]=12+9[/tex]
Now, add.
[tex]=21[/tex]
Therefore, the value of given expression is 21.
3•n = 6 will mark brainlist if answered correctly
Answer:
2
Step-by-step explanation:
3 * n = 6
/3 /3
n = 2
Solve the simultaneous equations
5y−4x=8
y+x=7
x= ?
y= ?
Answer:
x=3 y=4
Step-by-step explanation:
5(4)=20
4(3)= 12
20-12=8
4+3=7
Find the distance between (-5,4) (6,-3) work shown?
Answer:
[tex]\sqrt{170}[/tex]
Step-by-step explanation:
(x2 - x1)^2 + (y2-y1)^2 = c^2
(6 - - 5)^2 + (-3 - 4)^2 = c^2
121 + 49 = c^2
170 = c^2
[tex]\sqrt{170}[/tex] which is about 13.04
-25p – 2 = 48 for p.
A. -2
B. 1
C. 3
D. 8
Answer:
i would be -2
Step-by-step explanation:
-25p-2=48
+2 +2
-25p=50
p=-2
Answer:
-2
Step-by-step explanation:
Add 2 to both sides
-25p = 50
Divide both sides by -25
p = -2
−3x−6+(−1) equivalent
Answer:
-3x-7
Step-by-step explanation:
Combine Like Terms:
=−3x+−6+−1
=(−3x)+(−6+−1)
=−3x+−7
De un deposito de agua lleno se sacaron 5/8 de su contenido.
despues saco la 6ta parte de lo que quedo. Calcula que parte le queda al deposito si su capacidad era de 80 litros cuantos litros de agua le sacaron?
1. Candace has $15 more than Amar. Their combined money totals $85. Which system of equations represents this situation? F. c + a = 85 G. c + a = 85 H. c – a = 85 I. c – a = 85 c – a = 15 a + c = 15 c – a = 15 c + a = 15 Also please show explanation
The system of equations that represents Candace's and Amar's combined money is c + a = 85.
What is a linear equation?
A linear equation is an algebraic equation of degree one. In general, the variable or the variables(in the case of a linear equation in two variables) the variables are x and y.
Given, Candace has $15 more than Amar.
Assuming Amar has $a.
∴ Candace(c) has $(x + 15).
Their combined money totals $85.
So, the equation that represents their combined money is
x + (x + 15) = 85 or a + c = 85.
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Help me please I need it
Answer:
D. 11
Step-by-step explanation:
Add all the numbers and divide by 4
if y=10 and x=2 what is the constant of variation (k)?
Answer:
5
Step-by-step explanation:
hope this helps
Help!!
This assignment is due soon
Step-by-step explanation:
1) option d) (x+y)√3
2)option c) 0
MARK ME AS BRAINLIEST✅✅
Can someone please please help me I really need help it’s one question
Answer:
28, 29, 31, 32
Step-by-step explanation:
the number of workers he normally has + the number of extra workers he hires for harvesting = total number of employees
so 26+b=c
help please! bdqksdc
Answer:
yes
Step-by-step explanation:
2 is 2/3 of 3
60 is 2/3 of 90
so on...
Melissa can ride her skateboard 2 miles in 10 minutes. How many miles can she ride her skateboard in 1.5 hours?
Answer:
18 miles
Step-by-step explanation:
1.5 hours is 90 minutes
10 goes into 90 nine times,
2x9=18
The ratio of adults to kids in a school is 3 : 7. If there is a total of 200 people, how many of them are adults?
1 point
HURRY I NEED TO YK QUICK
Answer:
60 adults
Step-by-step explanation:
if you incress it all using cool math you get
3:7
6:14
whitch leads to 45:105
60:140
add 60 and 140 and you get 200
Find the slope of the line that passes theough the points (1,-4) and (3,-1
Answer:
2/3
Step-by-step explanation:
So find the change in x first....1 + 2 = 3....so, change in x is +2
Next find the change in y....-4 + 3 = -1....so, change in y is +3
Slope equals change in y/ change in x
So, the slope is 2/3
Hope this helps :D
Which shows how to find 7 x 210 mentally by using the Distributive Property?
(Image)
Answer:
G. 7(200)+7(10)
Step-by-step explanation:
First, you would multiply 200 by 7
Once you do that you should get 1400
After that you mulitply 7 by 10
You should get 70
Add 1400 by 70 and there you go your answer 1,470
Answer:
7(200)+7(10)
Step-by-step explanation: it is quite simple.first you look at the number out side of the () and that is the first number of your answer.then you look at the other number and split it into the 100 place and the tenth place.finally you know it is G because you have to have the () in the answer so it is G.
i hope this helped
A company has two manufacturing plants with daily production levels of 7x+19 items and 5x−2 items, respectively. The first plant produces how many more items daily than the second plant?
Answer:
The first plant manufactures 2x + 21 more items daily.
Step-by-step explanation:
Given that:
Production level of plant one = 7x + 19
Production level of plant two = 5x -2
To find the number of items first plant manufactures more than second plant, we will find the difference between production levels.
Difference = (7x + 19) - (5x - 2)
Difference = 7x + 19 - 5x + 2
Difference = 2x + 21
Hence,
The first plant manufactures 2x + 21 more items daily.
Plz help due tomorrow
Answer:
-2.3d+2.5h-16
hope its right
the marked price is 180. the rate of discount is 30% percent what is the discount and sale price?
Answer:
150
Step-by-step explanation:
i think if its wrong im
Quick please! Which best describes the triangle? 1.Acute and isosceles 2.Acute and scalene 3. Right isosceles 4.Obtuse and isosceles? :(((
Answer:
hey there!!!
Step-by-step explanation:
i think the best option is acute and isosceles from my view
hope it helps you...
What is the next term in the arithmetic sequence below?
15, 8, 1, -6, ...
0 -15
0 -13
0 -12
0 1
HELP PLEASE
Answer:
-13
Step-by-step explanation:
please help me please will give brainliest
Answer:
maybe the answer is B.(,1,1) and(1,3)help due in 20 minuites i will mark brainliestt
Answer:
A.
Step-by-step explanation:
take 17 *3/4 and get 12.75 which is 12 3/4 as a fraction
Find the following, giving your answers to 1 decimal place?
Answer:
I. Volume = 301.6 cm³ (to 1d.p)
II. CSA = 188.5 cm² (to 1d.p)
Step-by-step explanation:
Given the following data;
Height, h = 8cm
Radius, r = 6cm
Curved length = 10cm
a. To find the volume of the cone
[tex] V = \frac{1}{3} \pi r^{2}h[/tex]
Where;
V is the volume of the cone.r is the radius of the base of the cone.h is the height of the cone.Substituting into the equation, we have;
[tex] Volume = \frac{1}{3} * 3.142*6^{2}*8 [/tex]
[tex] Volume = \frac{1}{3} * 3.142*36*8 [/tex]
[tex] Volume = 3.142*12*8 [/tex]
Volume = 301.6 cm³ (to 1d.p)
b. The curved surface area of the cone
[tex] CSA = \pi rl[/tex]
Where;
CSA is the curved surface area of the cone.r is the radius of the base of the cone.l is the curved length of the cone.Substituting into the equation, we have;
[tex] CSA = 3.142*6*10 [/tex]
CSA = 188.5 cm² (to 1d.p)
What is the measure of AX
Answer:
B.) 9 in.
Step-by-step explanation:
a^2 + b^2 = c^2
a^2 + 12^2 = 15^2
a^2 + 144 = 225
a^2 = 225 - 144
a^2 = 81
√a^2 = √81
a = 9
What travels in a pack but people say its alone
Answer:
A wolf?
Step-by-step explanation:
y'know like "lone wolf"
Answer:
A stamp, or a Dog.
Step-by-step explanation:
A stamp usually doesn't move, but goes to places.
A wolf is pity and people call them alone.
YES, I have no idea this is just a lucky guess lol