The value of y varies directly with x, when y = 4, and x = 9. What is the equation for the relationship?
Answer:
y = [tex]\frac{4}{9}[/tex]x
Step-by-step explanation:
Given parameters:
y = 4
x = 9
y varies directly as x ;
Mathematically ;
y ∝ x
So;
y = kx
k is the constant of proportionality;
find k;
k = [tex]\frac{y}{x}[/tex]
k = [tex]\frac{4}{9}[/tex]
So,
Equation of the relationship is;
y = [tex]\frac{4}{9}[/tex]x
–42.3 ÷ 3.4 please explain step by step
What are the answers to these 2 questions? If you want, you can explain, but it’s not needed.
Answer:
hwefshd
Step-by-step explanation:
One printing machine printed 500 books in 40 hours this week. A second printing machine printed for 30 hours this week but printed books at twice the hourly rate of the first machine. How many books did the second machine print this week?
A.375
B.500
C.750
D.1,000
Can somebody help me plz
The number of books printed by the second machine this week is 750 books. Therefore, option C is the correct answer.
Given that, one printing machine printed 500 books in 40 hours this week. A second printing machine printed for 30 hours this week but printed books at twice the hourly rate of the first machine.
We need to find how many books did the second machine print this week.
What is the unitary method?The unitary method is a process by which we find the value of a single unit from the value of multiple units and the value of multiple units from the value of a single unit. It is a method that we use for most of the calculations in math.
The number of books printed by the second machine this week is 750 books.
Since the first printing machine printed 500 books in 40 hours this week, then the hourly rate will be:
= 500/40
= 12.5 books per hour.
Since the second machine printed at twice the hourly rate of the first one, this will be:
= 12.5 × 2 = 25 books per hour
Since the second machine printed for 30 hours, the total books will be:
= 30 × 25
= 750 books.
The number of books printed by the second machine this week is 750 books. Therefore, option C is the correct answer.
To learn more about the unitary method visit:
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You buy a brand new wax candle that stands 6 inches tall. Knowing that the rate at which the wax melts is approximately 1/100 of an inch per minute, write a linear equation that could model this situation.
Answer:
y=-1/100x+6 or y=-1x+600
Step-by-step explanation:
6 inches is the Y intercept (600,0) if measuring by 1/100 or (6,0)
Since the wax is melting, the slope is going to be negative
y=mx+6 or y=mx+600 either is fine and would yield the same results
y=-.01x+6, y=1/100x+6 or y=-1x+600
To explainn why 6 and 600 are both fine, 6 is measuring with full inches while the 600 is measuring with .01 inches. One graph will be full numbers while the other will be decimals.
Answer:
600 minutes total
Step-by-step explanation:
Inch = 100
1/100 every minute
100/100 = 1 inch and 100 minutes
600/100 = 6 inch and 600 minutes
Which of the following correctly uses absolute value to show the distance between -70 and 13?
1)
|-70 - 13| = |-83| = -83 units
2)
|-70 - 13| = |-83| = 83 units
3)
|-70 + 13| = |-57| = 57 units
4)
|-70 + 13| = |-57| = -57 units
Answer:
A
Step-by-step explanation:
I hope it helps I got it right
Smart multiplications
(a) 125 x 72
(b) 327 x 35 + 327 x 65
Answer:
1. 9,000
2. 32,700
Step-by-step explanation:
Answer:
a- 9000
b-243,263,475
Step-by-step explanation:
I wont ask why you need this at all.
Ansley is making a strawberry juice. The recipe calls for 1 part concentrate to 5 parts water. Ansley has an 8 ounce can of concentrate. How large of a pitcher does Ansley need?
Find (3)(5)(−3)(−2)(10)(−1).
find the product
The product of the term (3)(5)(-3)(-2)(10)(-1) is -900.
What are mathematical operations?Calculate the answer using a math operator is referred to as a mathematical operation.
Basic mathematical operations are addition, multiplication, subtraction and division.
The given term is,
(3)(5)(-3)(-2)(10)(-1).
To find product of whole term,
multiply a pair of terms,
15x6x(-10)
90x (-10)
-900
The product of the given term is -900.
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Can someone help me out? :P
Answer:
the fourth one 2 x radius x pi
Step-by-step explanation:
i hope this helps
There are 33 people at a meeting. Forty people had been asked to the meeting. What percent of the people asked to the meeting are at the meeting?
Answer:
82.5%
Step-by-step explanation:
40 x 2.5 = 100
33 x 2.5 = 82.5
so
82.5/100 = 82.5%
Answer: 82.5%
Step-by-step explanation:
The information below for two pay-as-you-go cell phone companies is given
On Call - 3.5 hours: $10
Talk Time - 1/2 hour:$1.25
a.) what is the unit rate in dollars for each company?
b.) Which company offers the best deal?
c.) Another company offers a rate of $0.05 per minute. How would you find the unit rate per hour?
Answer:
a) On Call: $2.86/hour
Talk Time: $2.50/hour
b) Talk Time offers the best deal.
c) $3/hour
Multiply 0.05 by 60 because there are 60 minutes in an hour.
Step-by-step explanation:
a) On Call: 10/3.5=2.86
Talk Time: 1.25/0.5=2.50
b) On Call>Talk Time
Talk Time offers the best deal.
c) 0.05x60=3
Multiply 0.05 by 60 because there are 60 minutes in an hour.
Answer:
Step-by-step explanation:
One company wants $10 per 3.5 hours, so they want 10 / 3.5 ≈ 2,86 dollars per hour (after rounding to the closest hundreths).
Second company wants $1.25 per half an hour, so they want 2 * 1,25 = 2,50 dollars per hour.
The unit rate is 2,86:2,50
Can some one explain it 2 me i will appreciate it!
Answer: y = 6x - 4
Step-by-step explanation: -4 is the y-intercept and y=6 is parallel so it doesn't change.
PLEASE HELP DUE TODAY‼️‼️
Answer:
1st one and 3x each
Step-by-step explanation:
im so bad a math can you help me
Answer:a
Step-by-step explanation:
Evelia paid $70 for 8 movie tickets. Each ticket costs the same amount. What is the cost of each movie ticket in dollars and cents?
Answer: $8.75
Step-by-step explanation:
Answer:
$8.75 per ticket
Step-by-step explanation:
70/8=8.75 dollars per ticket
Help .,) Explain fairly, I'll mark brainlest of best answer!
Jason needs 2 ½ pounds of potatoes to feed 15 people at his Friendsgiving dinner. But, his friends just called and told him they’re each bringing more friends. How many pounds of potatoes will need to feed 50 people? Explain your reasoning.
Answer:
8 1/3, eight and one over three.
Step-by-step explanation:
First lets find the rate by dividing 15 by 2.5 You will get 6 meaning that six people eat 1 pound each. Now lets divide 6 from 6 and 1. This means that 1 person will eat 1/6 of the pounds of the potatoe. Then we can do 50 times 1/6 and we will get 8.3333. This means that Jason needs 8 and 1/3 pounds of potatoes to feed 50 people.
helpppppppppppppppppppppppppppppppppppppp
Melissa purchased 17 gallons of gasoline for $37.23. What is the unit rate for the gasoline?
5a+3=25 suffering in maths OOF help
Answer:
Step-by-step explanation:
We move all terms containing a to the left, all other terms to the right
5a=22
a=22/5
a=4+2/5
Find the unknown value in the ratio.
__:14=9:8
3:__=2:1.25
Will mark first answer brainliest (only if its right)
pls answer if you show your work ill give brainliest
Answer: 6.23 light-years
Step-by-step explanation:
You need to convert your given ( 5.9 *10^13 kilometers ) to light years. You do this by multiplying 5.9 *10^13 kilometers * [tex]\frac{1 light- year}{9.46 *10^12 kilometers}[/tex] now you get rid of kilometers and are left with light-years. 5.9 *10^13 divided by 9.46 *10^12 gives 6.23 light-years.
Consider the equation: 5(3x 2 9) 5 2(6x 1 9).
answer this question, thx for the help
(the 4th one is this shape O )
Answer:
1st one
Step-by-step explanation:
A school gym has a width of 270 ft. Which of the following is equivalent to 270 ft?
90 yd
810 yd
9 yd
Not Here
Answer:
90 yards
Step-by-step explanation:
just use google instead
Look at the flag of Sweden below, then answer the question based on the appearance of the lines on the flag.
Which statement about the two yellow stripes in the Swedish flag is correct?
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
The two yellow stripes in the Swedish flag are parallel to each other.
(Choice B)
B
The two yellow stripes in the Swedish flag are perpendicular to each other.
(Choice C)
C
The two yellow stripes in the Swedish flag are neither parallel nor perpendicular to each other.
Report a problem
5 of 30
Answer:
I think its B but Im not 100%
Step-by-step explanation:
What does the equation X^m=
Answer:
It means X to the variable of m.
It would look like this:
[tex]X^m[/tex]
Write the first step in order to solve 7/8 / 3/4.
Answer:
find the gcf
Step-by-step explanation:
Please mark brainlest
Which solution would make the inequality below true? Read carefully!!!
2x - 4 > 14
9
0
5
12
Answer:
12
Step-by-step explanation:
2x - 4 > 14
Add 4 to both sides:
2x > 14 + 4
2x > 18
Divide both sides by 2:
x > 18 / 2
x > 9
(12 is the only option > 9)
Answer:
12
Step-by-step explanation:
HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
* + 24
Step-by-step explanation:
i took the test