The sum of two numbers is 25 one number is twice the second number plus seven What are the two numbers
Answers
Answer:
The two numbers are 6 and 19
Step-by-step explanation:
Assume that the two numbers are x and y
We are given that:
The sum of the two numbers is 25
This means that:
x + y = 25 ..........................> equation 1
We are also given that:
One number is twice the other plus 7
This means that:
x = 2y + 7 ..........................> equation 2
Substitute with equation 2 in equation 1 and solve for y:
2y + 7 + y = 25
3y + 7 = 25
3y = 18
y = 6
Now, substitute with the value of y in equation 2 to get x as follows:
x = 2y + 7
x = 2(6) + 7
x = 12 + 7
x = 19
Based on the above, we can conclude that the two numbers are:
6 and 19
Hope this helps :)
x+y=25 => x=-y+25
x= 2y+7
x=-y+25
x=2y+7
subtract the first equation from the 2nd
0=3y-18
y=6
x=19
please mark me as brainlist
Related Questions
What is (are) the solution(s) to the equation 23x−3=−13x−6?
Answers
23x-3 = 13x-6
Or, 23x-13x = -6+3
Or, 10x = -3
Or, x = -3/10
Therefore x = -3/10 ans
Hope this helps !
Please mark it as the brainliest
how do you graph y = 2/3x ?
Answers
Answer:
(3,4)
Step-by-step explanation:
Start at the point (1,1) then Rise 2, and go to the right 3 which will give you the point (3, 4)
Find the volume of the cone-
Answers
Step-by-step explanation:
1/3 *πr²h
1/3 × 8×8×9×π
8×8×3×π
64×3×π
192×π
192×22/7
4224/7
Which expression is equivalent to −36y−13?
−12(3y−1)+1
−12(3y+1)+1
−12(3y+1)−1
−12(3y−1)−1
Answers
Answer:
[tex]-12(3y+1)-1[/tex]
Step-by-step explanation:
0540-0058= ???
In military time
Answers
Answer:
0442 (4:42 normal time)
btw plz give brainliest
Help me with this plzzzzz I need to finish it rn so PLZZ help asp
Answers
Answer:
1. 16π
2. 112π
3. 351.68
Step-by-step explanation:
Area of a circle = πr^2
Substitute...
=4^2π
=16π
To find the how much fluid it can hold, just basically find its volume. To do that, you mutiply the area of the base by the height. So...
16π*7=122π
You then just subsitute π by 3.14 so...
122(3.14)=351.68
15,19,23,__,31 find the number sequence
Answers
Answer:
27
Step-by-step explanation:
yes.
are you trying to find the missing number bc if so then its 27
15,19,23,27,31
HOW DO I DO THUS PLS HELP PLSSSS
Answers
Answer:
Just call your teacher
Step-by-step explanation:
AWNSER THIS FOR 20 POINTS!
Simplify each polynomial by adding or subtracting. There should be no like terms in your final expression.
a. (8x² + 2x - 5) + (-5x² + x + 3) = ?
b. (2x² - 3x + 1) - (x³ + 2x² - 4) = ?
Answers
Answer:
a) (8x² + 2x - 5) + (-5x² + x + 3)= 3x²+3x-2
b) (2x² - 3x + 1) - (x³ + 2x² - 4)= -x³-3x+5
Step-by-step explanation:
Brenda’s Boards manufactures skateboards. Each skateboard sells for $45 and includes the following expenses: $3 for the wheels and mounts, $1 for the plastic board, $1 for the paint, and $10 for the labor. What is the total profit the company earns after selling 100 boards?
Answers
Answer:
The total profit the company earns after selling 100 boards is $3,000 hope this helps! :)
$3000 is the ANSWER EDG 2022
Step-by-step explanation:
using absolute value operation what is: -6 and -3
Answers
Answer:
Well if you talking about absolute value. Those Values should automatically turn to positive 6 and positive 3
Absolute value is where no matter what number is or integer it is it always turns into a positive number.
Steve bought used and new video games from a website. The new games cost $54 each and the used games cost $9 each. He spent no more than $243 on the video games and he bought no more than 7 video games. Let x represent the number of new video games, and let y represent the number of used video games. Identify an ordered pair that is a solution to the system of inequalities. Interpret the meaning of the ordered pair within the context of the problem by selecting the appropriate explanation.
Answers
Answer:
y = 3 used games
x = 4 new games
Step-by-step explanation:
54x + 9y = 243
x + y = 7 then x = 7 - y
substitute for x:
54(7 - y) + 9y = 243
378 - 54y + 9y = 243
reduce:
378 - 45y = 243
subtract 243 from each side:
135 - 45y = 0
add 45y to each side:
45y = 135
divide both sides by 45:
y = 3
x = 7 - 3 = 4
check:
3+4 = 7
7 = 7
54(4) + 9(3) = 243
243 = 243
hi can someone please help me with one step inequalities? specifically this question: −4+x ≤ 9 it just makes no sense.
Answers
Answer:
Step-by-step explanation:
When solving for a variable you need to math operations to isolate the vaiable by itself on one side of the equation.
[tex]-4+x\le 9\text{ adding 4 to both sides isolates x by itself}\\ \\ x-4+4\le 9+4\\ \\ x\le 13[/tex]
If u can help please do
Answers
Answer:
the first one is 240
the second one is 280
the third one is 200
The answers that would be discarded would be 220, 360 and 500
Step-by-step explanation:
Hey There!
So for this problem all we have to do is plug in the hours worked and drones sold into the expression 10h+40d
For the first one we just plug in 8 for hours (because he worked 8 hours) and 4 for drones ( because he sold 4 drones )
so we would have 10(8) + 40(4)
10x8=80
40x4=160
160+80=240 So 240 would go with the first one
For the second one we plug in 4 for hours ( because he worked 4 hours) and 6 for drones ( because he sold 6 drones)
so we would have 10(4)+40(6)
10x4=40
40x6=240
240+40=280
So 280 would go with the second one
For the third one we plug in 12 for hours ( because he worked 12 hours) and 2 for drones ( because he sold 2 drones)
so we would have
12(10)+2(40)
12x10=120
2x40=80
120+80=200
so 200 would go with the third one
hope this helps :)
+-√-49=+-
please help
Answers
Answer: 0 if I am not mistaken
the sum of two rational numbers is 2/5. of one of the rational number is -3/7 then find the other rational number
Answers
Answer:
-29/35
Step-by-step explanation:
A piece on a game board moves forward 8 spaces on its first turn and moves backward 3 spaces on its second turn. If the pattern continues, how many turns will it take for the piece to move at least 30 spaces? Please help me!!!
Answers
Answer:
It will take 8 turns
Step-by-step explanation:
Answer:
11 turns
Step-by-step explanation:
A piece on a game board moves forward 8 spaces on its first turn and moves backward 3 spaces on its second turn. How many space it moves for each 2 turns?
Space it moves for each 2 turns = 8-3 = 5
The question is asking for how many turns will it take to move 30 spaces, since we know that the piece will move for 5 space each 2 turns(let's call this a cycle).
Cycle required for 30 spaces = 30/5 = 6
At this point, many will think that the no. of turns required is 6x2 = 12, but that's not the answer! Do you still remember how the cycle works? 1st up 5, 2nd down 3! On the 11th turn, the piece actually moved for 5x5 + 8 space = 33 spaces, which is greater than 30!
∴The answer is 11 turns
Lauren has $90 in a savings account. The interest rate is 5%, compounded annually. To
the nearest cent, how much will she have in 2 years?
Answers
Answer:
sorry
Step-by-step explanation:
Answer: the answer is 99.23
Step-by-step explanation: not needed
Can someone please help me on this question ASAP!! thank you. ' what are the coordinates of A & B? '
Answers
Answer:
First photo:
A: (2, 6)B: (8, 4)Second photo:
A: (0, 4)B: (5, 0)Third photo:
A: (8.5, 4)B: (2.5, 1.5)Fourth photo:
A: (4, 2)B: (-2, 3)Fifth photo:
A: (3, -5)B: (-4, -1)I hope this helps!
need help on number 3. plzzzz!
Answers
Answer:
Step-by-step explanation:
x y = -5 y (x, y)
-1 -5 (-1, -5)
0 -5 (0, -5)
1 -5 (1, -5)
Slope between two points [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] is given by,
Slope = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
Slope between points (-1, -5) and (0, -5) will be,
Slope = [tex]\frac{-5-(-5)}{-1-0}[/tex]
= 0
Slope of the line passing through the given points will be 0.
find the value of given expression ?
[tex] \sqrt{35 + 25 + 21} [/tex]
Answers
Step-by-step explanation:
The answer will be 9 I hope this help you
1. Miriam is starting a lawn mowing business. She bought a mower for $450 and will spend
about $1.20 per hour on gasoline. How many hours will it take for the average cost per hour
for Miriam to do business to be less than $50. If x represents the number of hours she
mows, which inequality shows the average cost per hour for Miriam to do business and what
is the solution? (A.REI.2, A.CED.1)
a. 450 + 1.20x < 50; she can never have an average less than $50
b. 450 + 1.20x < 50; 14 hours
c. 450 + 1.20x < 50; 10 hours
d. 450 – 1.20x < 50; 9 hours
Answers
Answer:
she can never have an average less than $50 b. ... If demand of gasoline is inelastic, more of the burden of tax can be ...
Step-by-step explanation:
A ball is dropped from a height of 192 inches onto a level floor. After the third bounce it is still 3 inches off the ground. Presuming that the height the ball bounces is always the same fraction of the height reached on the previous bounce, what is that fraction?
Answers
Answer: The required fraction = [tex]\dfrac18[/tex]
Step-by-step explanation:
Let the required fraction = [tex]\dfrac{p}{q}[/tex]
Given: Initial height = 192 inches
Height of ball after second bounce = [tex]\dfrac{p}{q}\times192[/tex]
Height of ball after third bounce = [tex]\dfrac{p}{q}\times\dfrac{p}{q}\times192=192\dfrac{p^2}{q^2}[/tex]
After the third bounce it is 3 inches off the ground.
So,
[tex](\dfrac{p}{q})^2192=3\\\\\\(\dfrac{p}{q})^2=\dfrac{3}{192}\\\\(\dfrac{p}{q})^2=\dfrac{1}{64}\\\\(\dfrac{p}{q})^2=(\dfrac{1}{8})^2\\\\ \dfrac{p}{q}=\dfrac{1}{8}[/tex]
Hence, The required fraction = [tex]\dfrac18[/tex]
ASAP
Which equation best represents the table below?
Answers
-10x=bm-3
solve for m
Answers
Answer:
M=-10x/b+3/b
Step-by-step explanation:
Jenny recorded the weight of 5 dogs. Each dog weighed a different amount. She recorded the results
Which conclusion can be made about the interquartile range of Jenny's box plot?
a box plot.
A)
All the dogs weighed 15 pounds or less.
B)All the dogs weighed between 5 and 15 pounds.
C)The middle 50% of the dogs weighed between 5 and 15 pounds.
D)
The interquartile range was higher than it should be because of the dog
that weighed 20 pounds.
Answers
Answer:
C
Step-by-step explanation:
the middle 50% wold be the numerical values in the actual box part of the box plot.
Help help me in this please
Answers
Answer:
ok dont panic all you have to do is if your looking for speed you will divide d distance over time and if your looking for distance speed over time and for time total distance over speed
Step-by-step explanation:
so all you have to do is find out what your looking for.
The length of a guy wire supporting a cell tower is 120 meters. The guy wire is
anchored to the ground at a distance of 80 meters from the base of the tower. To
the nearest hundredth of a meter, how tall is the tower?
120 m
cell tower
80 m
Answers
Answer: 140
Step-by-step explanation:
n calculate
What is the volume of this object?
Answers
Answer:
91 feet^2
Step-by-step explanation:
Answer:
91 by 2
Step-by-step explanation:
7*5=35
7*2=14
3*5=15
35+14+15=64
64+27=91
91 by 2
If q is the centroid of JKL, LN=72,JP=93, and MK=78, find each missing measure
Answers
*diagram is in the attachment below
Answer:
Step-by-step explanation:
Given:
LN = 72
JP = 93
MK = 78
Required:
LQ, QN, QP, JQ MQ, and KQ.
Solution:
Apply the centroid theorem to find each missing measure.
✔️LQ = ⅔(LN)
LQ = ⅔(72)
LQ = 48
✔️QN = ⅓(LN)
QN = ⅓(72)
QN = 24
✔️QP = ⅓(JP)
QP = ⅓(93)
QP = 31
✔️JQ = ⅔(JP)
JQ = ⅔(93)
JQ = 62
✔️MQ = ⅓(MK)
MQ = ⅓(78)
MQ = 26
✔️KQ = ⅔(MK)
KQ = ⅔(78)
KQ = 52