You collect $20.92 for selling 4 video games and 2 cellphones on a website. Your friend collects $23.44 for selling 4 video games and 3 cellphones on the website. How much do you collect for each video game?
Answers
Answer: D
Step-by-step explanation:
x = video games
y = cellphone
Equation: (1) 4x + 2y = 20.92
(2) 4x + 3y = 23.44
_________________
y = 2.52
4x + 2y = 20.92
4x + 2(2.52) = 20.92
4x = 20.92 - [ 2(2.52) ]
4x = 15.88
x = 3.97
Amount collected for each video game is option D. $3.97.
What are Linear Equations?Linear equations are equation involving one or more expressions including variables and constants and the variables are having no exponents or the exponent of the variable is 1.
Let x be the amount got for selling one video game and y be the amount got for selling cellphones.
You collect $20.92 for selling 4 video games and 2 cellphones on a website.
4x + 2y = 20.92
4x = 20.92 - 2y
Your friend collects $23.44 for selling 4 video games and 3 cellphones on the website.
4x + 3y = 23.44
4x = 23.44 - 3y
Equating both the equations,
20.92 - 2y = 23.44 - 3y
Simplifying,
y = 2.52
Substituting y = 2.52 in 4x + 2y = 20.92,
4x = 15.88
x = 3.97
Hence the amount for selling one video game is $3.97.
Learn more about Solving Linear Equations here :
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Answer:
Step-by-step explanation:
then you find the lcm of 7, multiple by 6^999 and divide by 4. Take your remainder and multiply by 3/4, then take your product and take it to the 6th power.
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The elevation of a small submarine changes by -3/8 mile after each exploration. After how many explorations will the submarines elevation have changed by -1 1/2 miles?
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Which graph represents the linear equation y equals one fourth x plus 1 on the coordinate plane?
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Answer: It is the last graph you listed. y=1/4x+1 this means the slope is 1/4 and the y intercept is. The last graph matches this exact description.
Step-by-step explanation:
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answer is square root of 116
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Step-by-step explanation:
√(4^2 + 10^2) = 10.770
√116 = 10.770
proportional or not proportional?
Answers
Answer:
Proportional
Step-by-step explanation:
The relationship is proportional because starting at (0,0) there's a constant rate between the number of plants and the number of roses. We can represent this proportional relationship as y=5x where k=5, the constant of proportionality.
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Answers
Answer: Y = 3/8
Step-by-step explanation:
You can either use the rise/run method or subtract 2 points from the line to get the slope. You can do the rise/run method by starting at a point that is on the corner of the square and keep counting how many spaces you have to go until you get to the next even point. This number will be on the bottom, then count up until you get to that even point,this amount of spaces this takes will be on top. Since there are only 2 visible points on this graph,I will use the other method. You can use either the y1-y2/x1-x2 formula or do this
8,3
0,0
8,3
Remember,the y goes on top! Our slope is 3/8,also since the y intercept is the orgin/0,0 we don't need to add it at the end. I hope this helps and wasn't too complicated!
y = 3/8(x) is the equation that represents the proportional relationship in this graph, for y in terms of x.
What is proportional?In mathematics, two sequences of numbers, frequently experimental data, are proportional or directly proportional if their corresponding elements have a constant ratio, known as the coefficient of proportionality or proportionality constant.
If corresponding elements in two sequences have a constant product—also known as the coefficient of proportionality—then the two sequences are inversely proportional.
This definition is frequently broadened to include associated varying amounts, also known as variables.
We can see that when y = 1.5, then x = 4
And when y = 3, x = 8
Putting the value in slope form
y - y1 = m(x - x1)
3 - 1.5 = m(8 - 4)
1.5 = m(4)
m = 1.5/4
m = 3/8
Now simply we put the value in y-intercept form
y - 3 = 3/8(x - 8)
y = 3/8(x) - 3 + 3
y = 3/8(x)
Learn more about proportional
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A 3ft baby elephant standing next to a man casts a 7ft shadow, if the man casts a 14 foot shadow, how tall is he?
Answers
Answer:
6ft
Step-by-step explanation:
First you figure out 7/3 which is 2.3333333...
then do 14/2.33333333...
The table shows the statistics for the starting players after the first 15 games. PART A Use the table. Find the percent of free throws made by each player. Round to the nearest whole percent. [ table ]
Player
free throw attempted
Wilson 36
bartholdi 42
Johnson 22
garcia 29
o' malley 14
free throw made
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BARTHOLDI 37
jOHNSON 15
GARCIA 16
O' MALLEY 12
percent
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garcia 55%
o' malley 86%
Answers
Answer:
Step-by-step explanation:
Wilson-70%, artholdi-90%, jonhson-70%, Garcia-60%, o'malley-90%
round each of them to the nearest whole percentage (nearest whole number).
Enter the correct sum in each box. Use the number line to help you.
(A) 4.6 + (–5.9)
_________
|_________|
(B) –4.4 + 6.2
_________
|_________|
(C) 2.1 + 0.5
_________
|_________|
(D) –3.8 + (–1.3)
_________
|_________|
Answers
Answer:
(A) 4.6 + (–5.9)
-1.3
(B) –4.4 + 6.2
1.8
(C) 2.1 + 0.5
2.6
(D) –3.8 + (–1.3)
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Answers
Explanation
When you have a graph, you can find the slope or coefficient next to x, by finding rise over run on the graph or using slope formula.
On the graph, from 0, 0, we go up or rise +6 and go right or run +1. Slope is 6/1 or 6.
Or, you have (0, 0) and (1, 6) as two definite points. Using slope formula
y2 - y1 over x2 - x1
6 - 0 over 1 - 0 = 6/1 or slope of 6.
Look at the graph of a function below.
Which set builder notation represents the domain of the function in the graph?
A. {y|−1≤ y ≤ 3}
B. {y|1 ≤ y ≤ 9 }
C. {x|−1 ≤ x ≤ 3}
D. {x|1 ≤ x ≤ 9}
Answers
Answer:
A. {y|−1≤ y ≤ 3}
Step-by-step explanation:
because
A right triangle has one leg with a length of 5 units. The hypotenuse is 30 units long. What is the length of the other leg?
A. 5 Units
B. 25 Units
C. V 875
D. V 375
Answers
Answer: C. [tex]\sqrt{875[/tex]
Step-by-step explanation:
use Pythagorean theorem [tex]a^{2}+b^{2}=c^{2}[/tex]
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Select all ratios equivalent to 16:12 A. 12:9 B. 4:24 C. 48:36
Answers
Answer:
A, B, and D
Step-by-step explanation:
there all equal to 1¯3
Answer:
A - 12:9 and C - 48:36 are your answers
Step-by-step explanation:
16:12 can be simplified to 4:3 (by diving both numbers by 4)
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Answers
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MARK ME AS BRAINLIEST
Answer:
x= 13
Step-by-step explanation:
4x+2+2x+10=90
collect like terms
4x+2x+10+2=90
6x+12=90
collect like terms again
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1.) Last week, the price of grapes at the farmer's market was $1.50 per pound.
This week, the price has decreased by 15%. What is the price of grapes this week?
Answers
.85 x 1.5 = 1.275
OR
.15 x 1.5 = 0.225 // 1.5 - 0.225 = 1.275 or 1.28
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How can you use mental math and the inverse property of addition to find the sum [5.5+(-2.3)] +(-5.5 + 2.3)?
Answers
Answer:
To use mental math and the inverse property of addition to find the sum [5.5+(-2.3)] +(-5.5 + 2.3), you can use the following steps:
Rewrite the expression as [5.5+(-2.3)] +(-5.5) + 2.3.
Use the inverse property of addition to rewrite (-5.5) as 5.5, so the expression becomes [5.5+(-2.3)] +(5.5) + 2.3.
Use the inverse property of addition again to rewrite (-2.3) as 2.3, so the expression becomes [5.5+2.3] +(5.5) + 2.3.
Use the associative property of addition to rearrange the terms in the expression, so it becomes 5.5 + 2.3 + 5.5 + 2.3.
Use mental math to add the terms, which gives you a result of 15.8.
Therefore, the sum of [5.5+(-2.3)] +(-5.5 + 2.3) is 15.8.
Step-by-step explanation:
15.8
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Answers
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Step-by-step explanation 8 x 6
because both integers meet at 8 horizontally, ND 6 VERTICALLY. THEREFORE THE ANSWER IS 8 X 6
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Which statement best describes Garth's income from selling these caps?
A. He gets $5.00 per cap.
B. He gets $25.00 per cap.
C. He gets $34.00 per cap.
D. He gets $12.00 per cap.
Answers
100/8 = 12.50
Hallie and Mattie donated blue jeans to the clothing drive. Hallie donated 4 pairs of blue jeans. Mattie donated 6 pairs of blue jeans. Write a ratio to represent the relationship between Hallie's donation of jeans and Mattie's donation of jeans.
Answers
Answer:
2:3
Step-by-step explanation:
Hallie's Donation : Mattie's Donation = 4:6
simplified, it is 2:3
If you do 4/6 you’ll simplify to get 2/3.
PLEASE HELP! I WILL GIVE BRAINLY!! (if u troll ill report!)
A sports medicine major wanted to conduct an experiment to determine if there is a correlation between the members of the soccer team's leg strength and the time it takes for them to sprint 40 yards. He sets up the following test and records the data:
Answers
Answer:
Using linear interpolation on the interval [15,23] that would be
9.5 + (22-15)/(23-15) * (11.9-9.5) = 11.6
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I took the test, this is my third time answering this question.
I explained everything but all got erased, anyways the answer is 11.9
Elle has just opened a boutique clothing shop. Because of the startup costs, for the next month her net earnings for an outfit is −$6.75. On Saturday during that month, she sold 7 outfits. What are Elle’s net earnings for Saturday?
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Answers
Answer:
$47.25
Step-by-step explanation:
Add $6.75 7 times
Explanation:
Snow fell in Newton twice in one day. The town received inch of snow in the morning and another inch of snow in the afternoon. How many total inches of snow fell in Newton on that day?
Answers
Answer : 1+1=2
Step-by-step explanation
1inch snow in am plus 1in snow in pm equals a total of 2in snow for that day.
If you have 10 friends and make two equal teams, what fraction do you use?
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Answers
Answer:
Step-by-step explanation:
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Answers
Answer:No matter what, the wind doesn't go to the volcanic areas.
Step-by-step explanation: notice that no matter what time, the wind never goes near the volcanoes. thats because the heat is pushing it away.
Select all ratios equivalent to 20:4 A. 8:1 B. 10:2 C. 15:3
Answers
Answer:
b 10:2 ,, c 15:3
Step-by-step explanation:
20:4 by dividing 4 from both sides you get the ratio
5 :1
so simplify the other ratios and find one that equals this one
A is already in simplest form 8:1
so it's refused
B 10:2 by dividing 2 from both sides you get the ratio 5 :1
C 15:3 by dividing 3 from both sides you get the ratio 5 :1
so both B and C are correct answers
Hope this helped! :)
Joe must choose a number between 49 and 95 that is a multiple of 3 , 9, and 12 . Write all the numbers that he could choose. If there is more than one number, separate them with commas.
Answers
The first number 49 or larger that is divisible by 3 is 51 (17 * 3 = 51) so begin at 51 and count by 3's until you get to 95:51, 54, 57, 60, 63, 66, 69, 72, 75, 78, 81, 84, 87, 90, 93The first number 49 or larger that is divisible by 6 is 54 (6 * 9 - 54) so begin at 54 and count by 6's until you get to 95:54, 60, 66, 72, 78, 84, 90The first number 49 or larger that is divisible by 9 is 54 (9 * 6 - 54) so begin at 54 and count by 9's until you get to 95:54, 63, 72, 81, 90Now look for the numbers that are in all three lists
The school that Ashley goes to is selling tickets to the annual dance competition. On the first day
of ticket sales, the school sold 5 adult tickets and 7 child tickets for a total of $152. The school
took in $86 on the second day by selling 5 adult tickets and 1 child ticket. Find the price of an
adult ticket and the price of a child ticket.
Answers
Answer:
children: $4.34
adult: $ 17.02
(this is very wrong)
Select all ratios equivalent to 30:14 A. 6:4 B. 21:7 C. 60:28
Answers
Answer:
c
Step-by-step explanation:
30:14 The division isn’t proportional. 30/5 is 6 but 14/5 is not 4.
6.4
—————
30:14 Same here as above just now the 14 is proportional just not the 21.
21:7
—————
30:14 Finally! The 2nd ratio is twice the first!
60:28
Answer: hope this helps ♡
C. 60:28
Step-by-step explanation:
30:14
A. 6:4 → 30 ÷ 6 = 5 & 14 ÷ 4 = 3.5 (the answers aren't equal) 30:14 ≠ 6:4
B. 21:7 → 30 ÷ 21 = 1.4 & 14 ÷ 7 = 2 (the answers aren't equal) 30:14 ≠ 6:4
C. 60:28 → 30÷60 =0.5 & 14÷28 = 0.5 (the answers are equal) 30:14 = 60:28