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
To learn more about elimination refer to:
https://brainly.com/question/294577
#SPJ2
graph of a function is alone that passes through the points (0,1) and (3,10) write an equation in the form y=Mx+b. For this function
Answer:
y = 3x + 1
Step-by-step explanation:
(0,1) so that is the b
the rate of change is 9/3 so the m is 3
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:
What is the probability of the spinner landing on a solid
section?
explanation please
Answer:
1/6 chance
Step-by-step explanation:
It's a 1/6 chance because there are 6 sections and if the lander just happens to land on a solid section which is only 1/6 of the whole circle it would have a 1/6 chance of landing on the solid color.
Please help I will mark brainliest
Answer:
22
Step-by-step explanation:
22
2(8)+6=22
Since f(x) which is x =8
(Please mark me brainliest)
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
which is more 1756 yards or 1 mile?
Answer:
1765
Step-by-step explanation:
hope this helps
Help me please I need it
Answer:
D. 11
Step-by-step explanation:
Add all the numbers and divide by 4
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:
A blueprint of a house shows a wall that is 5 inches long. If the blue pretty strong to a scale of 1:60, what is the actual width of the wall in the house
Given:
A blueprint of a house shows a wall that is 5 inches long.
The blue pretty strong to a scale of 1:60.
To find:
The actual width of the wall in the house.
Solution:
The blue pretty strong to a scale of 1:60.
It means, the dimensions of blueprint to the actual house is 1:60.
Width of a wall in blue print = 5
Let the actual width of the wall in the house be x.
[tex]\dfrac{5}{x}=\dfrac{1}{60}[/tex]
[tex]5\times 60=1\times x[/tex]
[tex]300=x[/tex]
Therefore, the width of the wall in the house is 300 inches.
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
Ariana is going to invest in an account paying an interest rate of 3.7% compounded monthly. How much would Ariana need to invest, to the nearest dollar, for the value of the account to reach $25,000 in 14 years?
Answer:
14905
Step-by-step explanation:
Use Calculator. Round to the nearest dollar
The amount of money that Ariana needs to invest today in order to reach $25,000 in 14 years is $14,913.
How much should Ariana invest today?In order to determine the amount of money that Ariana should invest today, the present value of $25,000 has to be determined.
The formula that can be used to determine the present value is:
P = FV / (1 + r)^nm
Where:
FV = Future value P = Present value R = interest rate = 3.7% / 12 = 0.308%m = number of compounding = 12N = number of yearsP = 25,000 / (1.00308)^(12 X 14) = $14,913
To learn more about present value, please check: https://brainly.com/question/18760477
#SPJ2
(GIVING BRAINLIEST!!!!!!)
How many fish can be kept in a 10-liter aquarium if each fish requires one third of a liter of water?
A) 30 fish
B) 1/30 fish
C) 13 fish
D) 1/13 fish
Answer:
A) 30 fish
Step-by-step explanation:
1/3 can be put into 1 three times
3 x 10 liters = 30 fish
Answer:
30
Step-by-step explanation:
10 liters of water divided by 1/3 is the equation
first you imply keep ,change ,flip
keep the 10/1 change the division sign to multiplication and flip 1/3 to 3/1
everything changed should be 10/1 times 3/1 and that equals 30
3•n = 6 will mark brainlist if answered correctly
Answer:
2
Step-by-step explanation:
3 * n = 6
/3 /3
n = 2
Of the 40 randomly chosen students surveyed, 27 are involved in extracurricular activities at school. There are 680 students at the school. Predict the number of students in the school who are involved in after-school activities. (Please answer the right answer and how you got the answer)
Answer:
It's around 459. So 460 if need to round
Step-by-step explanation:
So, 40 randomly chosen people do not represent the whole school, but using the ratio 27:40 you are given in the equation, you can divide the number of students (680) by the surveyed students (40) to get 17. What this means is there is 17 groups of 40 in the school, so to distribute the amount of people who are in a after-school activity, you must multiply 17 x 27 to get the assumption of about 459 kids. Hopefully you understand =)
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.
−3x−6+(−1) equivalent
Answer:
-3x-7
Step-by-step explanation:
Combine Like Terms:
=−3x+−6+−1
=(−3x)+(−6+−1)
=−3x+−7
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
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
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)
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
Plz help due tomorrow
Answer:
-2.3d+2.5h-16
hope its right
help please! bdqksdc
Answer:
yes
Step-by-step explanation:
2 is 2/3 of 3
60 is 2/3 of 90
so on...
At Mr. Hynd's ranch, there are 35 chickens and 20 cows. What is the ratio of the number of cows to the
number of chickens at Mr. Hynd's ranch?
A 4/7
B 11/4
C 4/11
D 7/4
1.Given the lines shown here, what are two possible equations for this system of equations
2.How many solutions does this system have?
Answer:
Two possible equations:
[tex]y = x + 1\\y = x - 5\\[/tex]
The system has 0 solution as parallel lines never cross each other.
Step-by-step explanation:
Considering the two lines are parallel, they both have the same slope.
let m be the slope of the two lines:
[tex]y = mx + y_{0}\\y=mx+y_{1}[/tex]
[tex]y_{0}, y_{1}[/tex] are the value on y axis where the two lines cross the axis.
Because the lines are parallel, there exists no point that lies on both lines, therefore the system has 0 solution.
Round 19 and 17 to the nearest tenth
Answer:
They both would be 20
I NEED THIS ANSWER RIGHT NOW OR IMA FAIL MY MATH CLASS PLZ HELP
Jermaine buys T-shirts for $6 each and marks up the price by 45%.
How much profit does Jermaine make for each T-shirt sold?
Answer: $8.70 i think
Step-by-step explanation:
Answer:
$2.7
Step-by-step explanation:
By estimating the line of best fit which value is the best estimate for how many cars will be sold tomorrow
Answer: 30
Step-by-step explanation: when you look at the x value of 9, the y value on the best fit line would be 30
Answer:35 cars
Step-by-step explanation:
9 divided by 35 cars each person will sell at least 3 cars
-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
