Answer:
xy=5
Step-by-step explanation:
from the question, y varies directly with x and y
Then y ∝ xy
If we introduce proportionality sign we have
y=r xy
Where r= proportionality constant
Then if we substitute the given values
y = 25 when r = 5.
We have
y=r xy
25=5xy
Divide both sides by 5
xy=25/5
xy=5
Hence, equation that models the statement is xy=5
A persons weekly pay directly proportional to the number of hours worked on Spee is $123.00 for 20 hours of work. Find amount of pay for 31 hours of work.
Answer:
$190.65
Step-by-step explanation:
123.00/20=6.15 per hour
6.15x31hours worked = $190.65
Help me ASAP I’ll mark brainliest
Answer:
4
Step-by-step explanation:
26x+6 - 12x +2 = 14x +4
60-4 = 56
56/14=4
Please help me with this homework
please help me please will give brainliest
Answer:
b.
Step-by-step explanation:
In Yellowstone National Park there are 300 species of birds that migrate. This accounts for 2/7 of all the species of birds sighted in the park.
WILL MARK BRAINLIEST! Write an equation to find the number of species of birds that have been sighted in Yellowstone National Park.
7/2 x = 300
300x 7/2 =
300x 2/7=
2/7x = 300
Suppose that 16 inches of wire costs 64 cents. At the same rate, how many inches of wire can be bought for 44 cents?
Answer:
11 inches of wire
Step-by-step explanation:
Suppose that 16 inches of wire costs 64 cents. At the same rate, how many inches of wire can be bought for 44 cents?
From the above question:
64 cents = 16 inches of wire
44 cents = x
Cross Multiply
64 cents × x = 16 Inches × 44 cents
x = 16 inches × 44 cents/64 cents
x = 704/ 64
x = 11 inches
Therefore, 11 inches of wire can be bought for 44 cents
Two friends shop for fresh fruit. Elena buys a watermelon for $6.35 and 4 pounds of cherries. Taniy buys a pineapple for $4.55 and 3 pounds of cherries. Use the variable p to represent the price, in dollars, per pound of cherries. Write and simplify an expression to represent how much more Elena spent. PLEASE HELP
Answer:
$6.35 + 4 x p
$4.55 + 3 x p
Step-by-step explanation:
can someone help me ill mark you brainliest
Answer:
Equation: x+x+6=20
x=7
Andy completed 16 problems
Step-by-step explanation:
Use your calculator to work out
162 – 17
V2.3 + 5.87
Write down your full calculator display.
9514 1404 393
Answer:
answer: 83.6155157107
Step-by-step explanation:
See attached.
__
Most calculators will require that you enclose the numerator in parentheses. You may or may not need to do that for the square root function and denominator as well.
_____
My calculator uses RPN, so the sequence of keys would be ...
16 . . . x^2
17 . . . - (minus) . . . displaying 239
2.3 . . . enter
5.87 . . . + . . . displaying 8.17
√ . . . . displaying 2.85832118559
÷ . . . . displaying 83.6155157107
This kind of calculator gives me complete control over the way the calculation is done, so no parentheses are needed. (The number 239 simply waits for the ÷ operation.)
Some "algebraic" calculators do not conform to the Order of Operations, and some do not have enough memory for pending operations. The manual doesn't always point out the limitations.
I like the G.oogle calculator because it is guaranteed to conform to the Order of Operations. That requires you to know where to use parentheses. Its final display always uses parentheses to show exactly how it did the computation.
How many solutions does the following system of equations have?
not enough information
1
infinitely many
0
Answer:
Since the lines are parallel and do not cross, there is no solution. The answer was 0.
Step-by-step explanation:
The bicycle repair shop charged Devontae $34
plus a 25% labor fee. How much did Devontae
have to pay?
Answer: $42.4 dollars
Step-by-step explanation: PLZ PLZ PLZ MARK BRAINLIEST
DOES ANYONE KNOW THIS!!? ILL GIVE BRAINLIST :)
Answer:
4x+2
Step-by-step explanation:
I'm not sure what they mean by defining a variable but this question could be modeled through the following equation
4x+2 where x (the variable) is a book
Simplify negative nine over six divided by three over negative two
Answer:
1/4
Step-by-step explanation:
I used a calculator
You need to decide whether to hire three landscapers or hire just two but buy a faster mower; both options will deliver the same revenue. If landscapers cost you $18 an hour and work 2000 hours a year, and the new mower will cost $8,000, which option will be cheaper for you over the next three years?
Answer:
I think buying a new mower will be a much more financial sound decision because it can last 3 years, however, if you hire landscapers it will cost significantly much more money than buying a new mower.
Step-by-step explanation:
Reason for this is that:
$18×2000 hours= $36,000 each year
For three years: $36,000×3=$108,000
which is more than $8,000
Hence, buying a new mower would be the better solution.
Analyze the table representing five experiments with an increasing number of trials. The table shows the frequency of a coin landing heads up or tails up. A 4-column table with 5 rows. Column 1 is labeled Experiment with entries 1, 2, 3, 4, 5. Column 2 is labeled Trials with entries 20, 40, 60, 80, 100. Column 3 is labeled Heads with entries 12, 25, 20, 35, 48. Column 4 is labeled Tails with entries 8, 15, 40, 45, 52. What can you predict regarding the probability of the coin landing heads up? The frequency does not change with more trials. The experimental probability increases with more trials. With more trials, the frequency of heads up will equal the frequency of tails up. The frequency of heads up decreases with more trials. (85 Points)
column four 8, 15, 40, 45, 52.
Answer:
It's C. With more trials, the frequency of heads up will equal the frequency of tails up.
Step-by-step explanation:
edge
MARKING BRAINLIEST PLEASE HELP
Answer:
it is B the pictur explains how its right
Also it could not be c or d because it is heading in the positive direcation
If the cable company offered cable for $110 a month but gives a 10% discount for new customers. Find the cost for the new customers. Show all work
Answer:
$99
Step-by-step explanation:
Step one:
Given data
If the cable company offered cable for $110 a month
but gives a 10% discount for new customers
Let us find the worth of 10% discount
=10/100*110
=0.1*110
=$11
Hence the new customers will have to pay
=110-11
=$99
12x15 NEED THE ANSWER
Answer:
180
Step-by-step explanation:
calculator :P
Answer:
180
Step-by-step explanation:
hope this helps <3
Asap pls!!!
Two angles of a quadrilateral measure 245 degrees and 80 degrees. The other two angles are in a ratio of 2:5 what are the measures of those two angles?
Answer:
10° and 25°
Step-by-step explanation:
The ratio of the 2 angles = 2 : 5 = 2x : 5x ( x is a multiplier )
The sum of the 4 interior angles of a quadrilateral = 360°
sum the 4 angles and equate to 360
245 + 80 + 2x + 5x = 360
325 + 7x = 360 ( subtract 325 from both sides )
7x = 35 ( divide both sides by 7 )
x = 5
Thus
2x = 2 × 5 = 10
5x = 5 × 5 = 25
Then the 2 angles measure 10° and 25°
The points ( 2,4) and (5,y) lie on the same line. If the slope of the line is -IA, what is the value of y
Answer:
y = 1Step-by-step explanation:
Correct question
The points ( 2,4) and (5,y) lie on the same line. If the slope of the line is --1, what is the value of y
The formula for calculating slope of a line is expressed as;
m = y2-y1/x2-x1
Substitute the given point
y - 4/5-2 = -1
y-4/3 = -1
y-4 = -3
y = -3+4
y = 1
Hence the value of y is 1
The table shows the measured height, in feet, of an
airplane at certain times, in minutes, after takeoff.
Complete the statements interpreting the regression
model of the data.
In the
model, which best represents the
data, there is
Answer:
Logistic, a limiting value of 29,864
Step-by-step explanation:
Did the assignment
Help pls ASAP
-2x(-3x - 4y - 8)
Answer:
6
2
+
8
+
1
6
Step-by-step explanation:
Distribute
−
2
(
−
3
−
4
−
8
)
6
2
+
8
+
1
6
define the powers and how it is different to use a negative and positive power
Answer:
Hi here is answer hope it helps
Step-by-step explanation:
A positive exponent tells us how many times to multiply a base number, and a negative exponent tells us how many times to divide a base number.
Which day is the warmest day?
0 -8
0 -2
0 -7
n this assignment, you will explore how to find the number of different species of fish in a pond by looking at a random sample of the fish.
Which phrase best describes the total number of brook trout in the pond?
the population of brook trout
the proportion of brook trout
the sample of brook trout
the population of fish
Answer:the population of brook trout
Step-by-step explanation: Because population is half of a whole
I need help solving 3x+4y=-6,7x+4y=-14 by elimination
Study the graph equation in the coordinate grid below which statement correctly describes the equation
Answer: the first answer choice
Step-by-step explanation: it’s nonlinear because it has a changing slope, and the graph crosses the y axis at -3
Pls help I'll mark brainliest
A bag contains 5 red marbles, 3 green marbles, 2 purple marbles, 2 orange marbles, and 1 blue marble.
5 red marbles, 3 green marbles, 2 purple marbles, 2 orange marbles, and 1 blue marble.
Which color marble is less likely to be picked than purple?
A. blue
B. orange
C. green
D. red
Answer:
blue
Step-by-step explanation:
Is pi*0 irrational?
Answer:
π is an irrational number which has value 3.142…and is a never-ending and non-repeating number.
I am going to say no simply bc pi itself can't be multiplied by 0 whatever times 0 going to be 0 and so 0 is rational
what is the gcf of 4y-28
Answer:
4(y-7)
Step-by-step explanation:
factor the polynomial 4y-28 hi it's GCF: 4
