Answers
Answer:
y = 4 and x = 11
Step-by-step explanation:
x = y + 7 Substitute the first equation into the second equation and
solve for y
x + 1 = 3y
y + 7 + 1 = 3y
8 = 2y
4 = y x = y + 7
x = 4 + 7
x = 11
Related Questions
If x=5 and y=3 find the value of x+2y
Answers
Answer:
x=5
y=3
then ,
x+2y= 5+2 *3
= 5+6
= 10
Calculate the exact value of 0.428 ×2.75
Answers
- BRAINLIEST ANSWERER
Aubree is making different shades of pink paint to use for an art project. A batch of dark pink uses 2.5 cups of red paint and 1.5 cups of white paint. A batch of light pink uses 0.75 cup of red paint with 1.25 cups of white paint. She begins with a gallon of red and a gallon of white paint. How much of each color paint will she have left if she makes a batch of dark pink and light pink every day for a week?
Answers
Answer:
Cups of red paint for a batch of dark pink - 2.5
Number of gallons of red paint that she starts with - 1
Cups of red paint for a batch of light pink - i did not get that one
Step-by-step explanation:
The mean age of 8 women in an office is 19 years old.
The mean age of 5 men in an office is 18 years old.
What is the mean age (nearest year) of all the people in the office?
Answers
Answer:
19
Step-by-step explanation:
(8*19+5*18)/(8+5)=242/13=18 8/13
round
19
(25)2
(
2
5
)
2
× 100 ÷ 23
2
3
+ [24 ÷ (13 – 5)] = 14
8 divided by 2/3+2 = 14
Answers
Answer:
4 better explanation inbox
Step-by-step explanation:
I need helpppp with 1-9
Answers
1. x=1 y=3
2. x=2 y=1
3. x=2 y=2
4. x=5 y=5
5. x=2 y=0
6. x=2 y=1
7. x=3 y=-1
8. x=1 y=-3
9. x=1 y=0
Tell me if you want a step by step on any of them!! I can add that if you want.
Hope this helped. :)
If the height of a cone is 7.5 cm and the radius is 2 cm, find the approximate volume of the cone.
Answers
Volume: (7.5) • pi (2)^2
Volume: 94.247796
Just round to your teacher’s liking
Answer:
The volume of the cone is approximately 31.43 cm³Step-by-step explanation:
We know that:
Volume of cone: πr²h/3h = 7.5r = 2Work:
πr²h/3=> π x r² x h/3=> 22/7 x 2² x 7.5/3=> 22/7 x 4 x 2.5=> 22/7 x 10=> 220/7=> 31.43 (Rounded to nearest hundredth.)Hence, the volume of the cone is approximately 31.43 cm³
Hoped this helped.
[tex]BrainaicUser1357[/tex]
. A man bought a car for $60 800. After one year, it was worth $51 680. What is its depreciation as a percentage of the selling price?
Answers
Answer:
c 3
Step-by-step explanation:
= -50880/800 = -318/5 x 20/20
= -6360/100
= -6360%
Camelle manages her soccer team. she needs to order 4 practice jerseys for each player. There are y players how many total practice jerseys does she need to order?
write and expression
Answers
Answer:
T= total # of jerseys to order
y= # of players
T= 4*y
Total equals 4 times # of players
T= 4y
One evening, 2/3 of Mrs. Thorne’s students watched a reality television show. Of Mrs. Lombardo’s students, 4/5 watched the same reality show: Which teacher has more students watch the reality show?
Answers
Answer:
They both had the same amount of students watch the reality show.
Step-by-step explanation:
To find the number of students who watched the reality show in each teacher's class, just multiply the fraction by the total number of students per teacher.
For Mrs. Thorne's:
36 * (2/3) = 24 students
For Mrs. Lombardo's:
30 * (4/5) = 24 students
24 = 24 so they had an equal amount of students from each class watch the reality show.
10. What percent of 25 is 10? (1 point)
O10=r. 25: 40%
O 10=r. 25: 250%
025=x: 10; 40
025=r. 10; 250%
Answers
Answer:
40%
Step-by-step explanation:
To change a fraction into a percentage, multiply by 100% , then
[tex]\frac{10}{25}[/tex]
= [tex]\frac{10}{25}[/tex] × 100%
= 0.4 × 100%
= 40%
Sam made $189 for 9 hours of work. At the same rate, how many hours would he have to work to make S147?
Answers
Answer: 7 hours
Step-by-step explanation:
$189/9 hr = $21/hr
$21/hr(x) = $147
x = 147/21
x = 7 hours
Answer:
7 hours
Step-by-step explanation:
We know 9 hours of work paid $189
to find how much Sam makes in one hour we divide the amount made by the time it took to make it
189 / 9 = 21 dollars per hour
then we know she would like to make $147 more at a rate of $21/hr so
147 / 21 = 7 hours
The area of a square is 36 cm² what is the length of each side of the square
Answers
Answer:
6 cm
Step-by-step explanation:
take the sqaure root of 36 and get 6
Answer:
6 cm
Step-by-step explanation:
Formula for Area of A Square Is: [tex]A = s^2[/tex]
s - given side
We would need to take the square root of 36 to get the side length.
[tex]36 = s^2\\\\\sqrt{36} = \sqrt{s^2}\\\\\boxed{6 = s}[/tex]
Each side length should be 6 cm.
i need help with evaluating functions g(n)=3n - 4 ; find g(9)
Answers
So
3n - 4 = (3*9) - 4 = 23
steve has 18 more dollors than joe. what the algebraic expression that represents the amount of dollors steve has
Answers
Answer: s = j + 18
Step-by-step explanation:
Let's say Steve's money can be represented as s, and Joe's money as j. Because Steve has 18 more dollars than Joe, simply add 18 to Joe's money to solve for s.
Hope it helps :) and let me know if you want me to elaborate.
Opps, forget to add picture. 6 minutes left. Pls help, thank you!
Answers
Answer:
I don't know sorry please forgive me
Answer:
D
Step-by-step explanation:
mean is 11.25 and midian is 10.50
√(7+√(24))÷2+√(7−√(24))÷2
Answers
Answer:
The exact form is √(7+√(24))÷2+√(7−√(24)) over 2. The decimal form is 2.44948974....
Step-by-step explanation: Hope this will help you! :D
y varies jointly as x and z. If y = 12 when x = 4 and z = 3, find y when x = 9 and z = 8.
Answers
Answer:
y = 72
Step-by-step explanation:
Given y varies jointly as x and z then the equation relating them is
y = kxz ← k is the constant of variation
To find k use the condition y = 12 when x = 4 and z = 3
12 = k × 4 × 3 = 12k ( divide both sides by 12 )
1 = k
y = xz ← equation of variation
When x = 9 and z = 8 , then
y = 9 × 8 = 72
What’s the answer to -4/4+160%+1/5=
Answers
Answer:
I think it is 1 4/159
Step-by-step explanation:
Please help!
(at the start it says "Albert's mom bought" but it was accidentally cropped out...sorry)
Answers
Answer:
Option D
Step-by-step explanation:
We convert 5 2/3 into an improper one:
17/3
There are 5 people in his family
17/3 * 1/5 = 17/15
So option D
Which triangles are congruent in the figure?
Answers
Answer:
ΔJLK≅ ΔMLN
Step-by-step explanation:
SSS
Hwlp with work its 3am and im stuck help
Answers
Answer:
[tex]\huge\boxed{a) 28 \\ }\huge\boxed{b) 31}[/tex]
Step-by-step explanation:
A fibonacci-type sequence is simply a sequence that consists of the n-1th term + the n-2th term. This simply means that the sum of the two numbers before a term, are the term.
Hope it helps :) and let me knwo if you want me to elaborate.
Answer:
a is 28 and b is 31
Step-by-step explanation:
i hoped this helped
Help help fast please first answer gets brainiest also needs to be clearly stated
Answers
Answer:
(1,5) and (4,7)
Step-by-step explanation:
The slope of linear equations can be determined by m = rise / run. Rise means the difference between the y coordinates of the two points, and run is that of the y coordinates. In this case rise / run = (7-5) / (4-1) = 2 / 3.
how do you solve this inequality
[tex]2x - y \leqslant 3[/tex]
Answers
Step-by-step explanation:
I said in your comments, you can solve it for each variables
you have 2 answers
1) 2x<y+3
[tex]x \leqslant \frac{y + 3}{2} [/tex]
2)
[tex]y \geqslant 2x - 3[/tex]
50 points and brainliest Identify the pair of points that can represent an increasing function that has a greater rate of change than that of the function .
Answers
There are total three pairs
(-6,-3)->(3,7)(-5,-5)->(5,9)(-3,-3)->(6,7)Look at the co-ordinates
The x co-ordinates increase with respect to y co-ordinates
Answer:
(-6,-3)->(3,7)
(-5,-5)->(5,9)
(-3,-3)->(6,7)
Step-by-step explanation:
a car is traveling at a steady speed. it travels 1 1/2 miles in 2 1/4 minutes. how far will it travel in 40 minutes?
Answers
Answer:
In 1 hour
Step-by-step explanation:
A Dog’s grew 2 1/2 inches in 12 1/2 weeks.How long will the hair grow in 1 week
Answers
Using the principle of proportional relationship, the length of hair grown by the dog in 1 week would be 0.2 inches
Setting up the relationship thus :
12.5 weeks = 2.5 inches
1 week = p inches
Cross multiply
12.5p = 2.5
Divide both sides by 12.5
p = 2.5 / 12.5
p = 0.2 inches
Hence, the length grown in 1 week is 0.2 inches
Learn more : https://brainly.com/question/25625086
f(x)=3x+5 and g(x)=2x+1
value of x
Answers
You can treat x and 2x+1 just as though they are real numbers.
So f(2x+1) = 3(2x+1) - 5 = 6x + 3 - 5 = 6x - 2
In the above, I made use of something called the distributive law which says that if a,b and c are real numbers, then a(b+c) = ab + ac.
What is the y-intercept of the graph below?
Answers
Answer:
the y intercept is 2
Step-by-step explanation:
we can see this because the line crossed the 2 on the y axis line
what is the rate of change of the function ?
Answers
Answer:
Rate Of Change Formula At its simplest, the rate of change of a function over an interval is just the quotient of the change in the output of a function (y) over the difference in the input of the function (x) (change in y/change in x)
Step-by-step explanation: