Write an equation for each situation.
8. Art buys 14 packages of batteries. After using a $ 20 coupon, the batteries cost $ 80. What was the original price, x, in dollars, of each package of batteries?
9. Grace worked for 14 hours tutoring students. She uses $20 dollars to pay for gas on the way home. If she has $80 left after paying for the gas, how much money, x, in dollars, was Grace paid per hour?
10. Karl bought 14 calculators at a store and paid $80. Each calculator was on sale for $20 off. What was the original price, x, in dollars, of each calculator?
11. Shane originally has $20. After working as a waiter in a restaurant for $14 dollars an hour, he now has $80. How many hours, x , did Shane work at the restaurant?
Answer:
8. The original price for one pack of batteries was $7.15
Step-by-step explanation:
Choose the student who wrote and solved the equation correctly.
The cost of 4 bananas is $2.36. What is the cost of each banana?
Mario's Work. StartFraction b Over 4 EndFraction = 2.36. A number line going from 9.41 to 9.49. A point is at 9.44.
Juan's Work. 4 b = 2.36. A number line going from 0.51 to 0.59. A point is at 0.59.
Daviana's Work. B minus 4 = 2.36. A number line going from 6.31 to 6.39. A point is at 6.36.
Answer:
B i think
Step-by-step explanation:
Juans work is correct because the equation to find cost of each banana is 4b=$2.36
What is Number system?A number system is defined as a system of writing to express numbers.
Given that the cost of 4 bananas is $2.36
We have to find the cost of each banana.
To find this we have to divide the cost by number of bananas
Divide two point three six by four
Banana is denoted by b
4b=$2.36 is the required equation
Cost of each banana =$2.36/4
=$0.59
Hence, Juans work is correct because the equation to find cost of each banana is 4b=$2.36
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The expression x^3/2 ∙ √x can be expressed in the form of, where the value of a is:
Answer:
what you crazy opssss wrong send ✌️
24 is 40% of what number? Use the percent equation.
Divide 24 by 40%
24 / 0.40 = 60
The answer is 60
Using the percentage equation, 24 ( twenty four ) is 40% ( forty percent ) of 60 ( sixty ).
What is Percentage?Percentage is simply number or ratio expressed as a fraction of 100.
The perecent equation is expressed as;
Percentage = ( Part / Whole ) × 100%
Given the data in the question;
Percentage = 40%Part = 24Whole = ?We determine the number, we substitute our given values into the expression above.
Percentage = ( Part / Whole ) × 100%
40% = ( 24 / Whole ) × 100%
40/100 = ( 24 / Whole ) × 100/100
40/100 = 24 / Whole
We cross multiply
40 × Whole = 24 × 100
40 × Whole = 2400
Whole = 2400 / 40
Whole = 60
Therefore, using the percentage equation, 24 ( twenty four ) is 40% ( forty percent ) of 60 ( sixty ).
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Please help! Math 8- Thanks!!!!!
O The function shown on the graph has a greater rate of change and
a higher starting point
O The function shown on the graph has a greater rate of change but
a lower starting point
O The function shown on the graph has a smaller rate of charge, but
a higher starting point
O The function shown on the graph has a smaller rate of change and
a lower starting point
What are the slope and the y-intercept of the linear function that is represented by the graph?
a. the slope is 2/3 and the y intercept is 2
b. the slope is 2/3 and the y intercept is 3
c. the slope is 3/2 and the y intercept is -2
d. the slope is 3/2 and the y intercept is 3
Answer:
uhh the slope is 2/3 but the y-intercepy is -2
Step-by-step explanation:
Answer:
c.the slope is 3/2 and .....
The circle 2x^2 = -2y^2 + 12x - 4y + 20 is inscribed inside a square which has a pair of sides parallel to the x-axis. What is the area of the square
5/ 2 x ≤ -14
A. -10.3
B. -6
C. -5.6
D. -5
Which of these does not make the inequality true?
Answer:
-5
Step-by-step explanation:
5/2(-5)≤-14 false
-12.5≤ -14 so false
The others are true
CAN SOMEONE HELP ME WITH THIS REAL QUICK Ahhhhh!!!
Andre drank 1.5 liters of water he brought. If he drank 80% of his entire hike, how much did he drink?
Answer:
about 1.25
Step-by-step explanation:
Andre drank 1.2 liters out of 1.5 liters of water.
What is a expression? What is a mathematical equation?A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.A mathematical equation is used to equate two expressions.Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.We have Andre who drank 1.5 liters of water he brought. He drank 80% of his entire hike.
Assume that he drank [x] liters of water. Then -
x = 80% of 1.5 liters
x = (80/100) x 1.5
x = 8/10 x 1.5
x = 1.2 liters
Therefore, Andre drank 1.2 liters out of 1.5 liters of water.
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:PHOTO: I NEED HELP ASAP
6:1.5
12:3
18:4.5
24:6
96.8:4,820
48.4:2,420
24.2:1,210
12.1:605
To celebrate getting a new car, Johnny went out to eat with 3 friends. Their meal, including tax, was $75. If they left a 15% tip, what is the cost of their total bill with the tip included?
Answer:
$86.25
Step-by-step explanation:
15% as a fraction and multiply that by 75 and then add that to 75.
help please !! thank u
Answer:
I think this is pythagorean theorem but I'm not sure what I got was 15 for the answer
-35=2y+5(y+7) what is y
[tex]\implies \sf{ - 35 = 2y + 5(y + 7)} \\ \\[/tex]
[tex]\implies\sf{ - 35 =2y + 5y + 35} \\ \\ [/tex]
[tex]\implies \sf- 35 - 35 = 2y + 5y \\ \\ [/tex]
[tex] \implies\sf- 70 = 7y \\ \\ [/tex]
[tex] \implies \sf y = \cancel{ \dfrac{ - 70}{7}} \\ \\ [/tex]
[tex] \implies \underline{\boxed{\bf {y = - 10}}}[/tex]
[tex]\huge {\therefore}[/tex] The value of y is -10.
How can you use the GCF of the numerator and the denominator to write a fraction in simplest form? Give an example.
Answer in paragraph form using complete sentences and include any calculations, graphs, and labeled diagrams as appropriate.
Giving brainliest!!!
Answer:
Step-by-step explanation:
When use the GCF of the numerator and denominator you are able to divide the fraction to its simplest form. ex. 45/30 GCF: 15 45/30 / 15/15 = 3/2
A bakery sells 4 muffins for $8.60. At that rate, how much would it cost to buy 5 muffins?
Answer:
5 muffins would be $10.75
Step-by-step explanation:
I you want me to explain just ask.
In the first round of a card game, Niki scored 20 points. Then, she lost 10 points on one turn and an additional 25 points on her final turn. What was her final score?
Answer: 35 points
Step-by-step explanation:
20 - 10 = 10
Then 10 + 25 = 35
What is the ratios of songs by the group from Michigan to the number of songs played?
15 to 3
18 to 3
3 to 15
3 to 18
Answer:
The answer is Option C- 3 to 15.
Step-by-step explanation:
I hope this helps you.
Answer:
Step-by-step explanation:
c
which one is it [photo is attached]
I need answer ASAP.
Abram was in a contest shooting baskets. He made 20% of his shots. He took a total of 240 shots in the competition. How many baskets did he miss?
Answer:
192 baskets
Step-by-step explanation:
what is the linear function? Find the output when the input is n. please help.
the numbers.
1=6
2=5
3=4
4=3
Answer:
y = -x + 6
Example:
-1 +6=5
ANSWER ASAP!!!
Find the length of BD in rectangle ABCD.
[tex]a {}^{2} + b {}^{2} = c {}^{2} [/tex]
A. 5
B. 23
C. 25
D. 31
And pls only answer if you KNOW the answer
:)
Find the x−and y−intercepts of −2x − 12y = 24.
Will give Brainliest!
Answer:
X= -12 -6y, Y= -2- x/6
Step-by-step explanation:
For x
-2x-12y=24
-2x/-2 -12y/-2. 24/-2. Divide all by -2
X+6y=-12 this is what you get after
-6y. -6y. Subtract from both sides
X=-12-6y this is what you get
Find y
-2x-12y=24
-2/-2. -12/-2. 24/-2
X -6y=-12
-x. -x
-6y=-12-x
-6y/-6. -12/-6. -x/-6
Y = -2 - x/6
Can someone help me round these two numbers? I completely forgot how
2.598
1.86875
Answer:
Step-by-step explanation:
If you are rounding to nearest tenth
2.6 1.9
Nearest hundredth
2.6 1.87
If the number to the right of the one you want to round is 5 or above, you go up a number. If it's below, you go down 1.
Hope this helps.
Express the missing divisor using a power of 10. Explain your reasoning using a place value model. 7,650 ÷ ___ = 7.65 *
Answer:
7,650 ÷ ___ = 7.65 It's 1,000
Step-by-step explanation:
Hope it's right :)
Answer:
b: 7,650 / 1000 = .7.65 this is because the decimal jumps 3 spots to the left
Bonnie withdrew $1,200 from her savings account. She spent of the money on travel arrangements. She spent of the remaining amount at the hardware store. Finally, she treated her friend to lunch with some of the remaining money. After lunch, Bonnie had $300.50 left. How much money did Bonnie spend on lunch?
Bonnie spent $
on lunch.
Answer:
899.5
Step-by-step explanation:
PLEASE PUT A REAL ANSWER
this is my 3rd time putting this Noah is NOT right
Answer:
5. Noah and Diego has the same amount of money which is $7.5
Step-by-step explanation:
Noah=75% of $10
75÷100×10=7.5
Noah has $7.5
Diego=25% of $30
25÷100×30=7.5
Diego=$7.5
Therefore Noah and Diego has the same amount of money
Answer:
Can I please have Brainliest I want to level up
Step-by-step explanation:
First right gets brainliest:)
Answer:
2401
Step-by-step explanation:
Trust me
CAN SOMEONE HELPPPP!!!!
Answer:
z=10
10-5z=-4z
10=-4z+5z
10=z
Answer: z = 8
Step-by-step explanation: z-6 take away 5 - 12 and you get 8
what is the equation
Answer:
y= -1/2x+4
Step-by-step explanation:
Answer: y= -1/2x+4
Step-by-step explanation:
I hope this helps