Answer:
с)y^2=32x
Step-by-step explanation:
Which of the following equations represents a proportional relationship?
A: y = 3x
B: y = 1/2x + 1
C: y = x/3 + 4
D: y = 2/5 - 5
Answer:
a
Step-by-step explanation:
y=3x
thus, a proportional relationship equation is y=kx .Where k is constant
There were 16 eagles in an area. Now there's 28 eagles in the area. What is the percent increase?
Answer:
175%
Step-by-step explanation:
175% in a decimal is 1.75 multiply this by 16 and you have 28 there's the percent increase
3^2 is an example of
Answer:
Exponents or powers.
Answer:
an exponent
Step-by-step explanation:
[tex]3 {}^{2} [/tex]
is an exponent
Vicente has a prism- like water tank whose base area is 1.2 square meters. He bought 6 goldfish at the store and the store owner told him to make sure their density in the tank isn’t more than 4 fish per cubic meter. What is the lowest possible height so the fish aren’t too crowded
Answer: 1.25 m
Step-by-step explanation:
Area of base = 1.2 m²
Number of gold fish = 6
Density of the tank should be = 4 fish/m³
Height of the tank= ?
4 fish = 1 m³
6 fish = 6/4 = 1.5 m³
Volume required for 6 fish is 1.5 m³
V = area of base x height (h)
1.5 = 1.2 x h
h = 1.25 m
Hence, height of the tank is equal to 1.25 m.
AWARDING THE MOST POINTS FOR BEST ANSWER! HELP ME ANSWER THIS FAST!!!!!!!!!!!!
The Johnson family buys furniture and appliances for a new house for $10,000.00 with a credit card that has a 15% APR.
The Johnsons make a $325.00 monthly payment. How many months will it take to pay off the balance? Enter your answer as a whole number, such as: 20.
Answer:
40 months:) hope that helps
Answer:
40
Step-by-step explanation:
i just did it and got it right
20. Joshua scored a 70, 80, 85, and 90 on his first four math quizzes. What 1 point
score will Joshua need to earn on his fifth quiz to have an average of 80? *
Answer:
75
Step-by-step explanation:
Let x represent the 5th score. Then:
70 + 80 + 85 + 90 + x
---------------------------------- = 80
5
Then:
150 + 175 + x 325 + x
-------------------- = 80 => ------------- = 80
5 5
so that: 325 + x = 400
Thus, x = 75.
If Josh earns a 75 on his 5th quiz, his 5-quiz average will be 80.
Answer:
75
Step-by-step explanation:
so we will do the equation
[tex]\frac{70+80+85+90+x}{5} =80[/tex]
[tex]\frac{325+x}{5} = 80[/tex]
Multiply both sides by 5
[tex]5*\frac{325}{5} = 80* 5[/tex]
325 + x = 400
Subtract both sides by 325
x =75
He needs to get a 75 on his fifth quiz to have an average of 80
Please brainliest
This recipe makes 5 portions of porridge. Complete the amount of each ingredient that is needed to make just 4 portions. Recipe: Serves 5 250 g oats 1.2 l milk 90 g sugar
Answer:
200g oats
0.96l milk
72g sugar
Step-by-step explanation:
250/5 * 4 = 50 *4 = 200g oats
1.2/5 * 4 = 0.96l milk
90/5 * 4= 18*4 = 72g sugar
The _ of adding 3+5 is the same as the sum .
Answer:
4*2=8
Step-by-step explanation:
3+5=8
4*2=8
Step-by-step explanation:
the result of adding 3 + 5 in the same as the sum
) Sarah donated one-tenth of her salary to an orphanage, one-third of her salary is spent on food, one-fourth of salary on rent and electricity and one-twentieth of her salary on the telephone. She donated some amount to the Prime Minister's relief fund for the pandemic affected victims. She was left with ₹ 3000. If her monthly salary is ₹ 30,000: Find the amount she donated to the Prime Minister's Relief Fund
Answer:
₹ 4000
Step-by-step explanation:
Sarah's salary =₹ 30000
one-tenth of her salary to an orphanage= 1/10*₹ 30000= ₹ 3000one-third of her salary is spent on food= 1/3*₹ 30000= ₹ 10000one-fourth of salary on rent and electricity =1/4*₹ 30000= ₹ 7500one-twentieth of her salary on the telephone= 1/12*₹ 30000= ₹ 2500donated some amount to the Prime Minister's relief fund = xShe was left with ₹ 3000.x= ₹ 30000- (₹ 3000+₹ 10000+₹ 7500+₹ 2500+₹ 3000)= ₹ 4000
Mr. Hawkins is covering a room in carpet. The room measures 14 feet by 12 feet in a rectangular shape. Each square foot of carpet costs $2.10. What is the cost of carpeting the room?
Answer:
Cost of carpeting the room will be $ 352.8
Step-by-step explanation:
Given,
The geometrical shape of the room is rectangular.
Length of the room = 14 feet
Breadth of the room = 12 feet
Area of the rectangular room = length of the room × breadth of the room
⇒ 14 feet × 12 feet
⇒ 168 square feet
Cost of carpeting one square foot = $ 2.10
∴ Cost of carpeting the room = Cost of carpeting one square foot × Area of the room
⇒ $ 2.10 × 168 square feet
⇒ $ 352.8
Mrs. Jacobson asked her students to write a word problem that describes the graph below. A graph has days on the x-axis and money on the y-axis. A line goes through points (0, 8) and (4, 0). Which word problem accurately describes the graph? Jamie has $8, and she pays $2 per day to ride the bus. Melinda has $4 and earns $2 allowance per day doing chores. Carrina has $8, and she earns $2 per day babysitting. Louise has $4, and she pays $2 per day for school lunch.
Answer:
a
Step-by-step explanation:
Answer:
a
Step-by-step explanation:
5 plus the difference of 9 and 4
The graph shows the number of hours that Tammy spends typing for work, x, and the amount of pay that she earns, y. On a graph titled Tammy's Pay, number of hours is on the x-axis and pay in dollars is on the y-axis. A line goes through points (2, 18) and (8, 42). What is the slope of the line? One-fourth StartFraction 8 Over 17 EndFraction 4 6
Answer:
6
Step-by-step explanation:
i did the problem and got it right
Answer:
6
Step-by-step explanation:
I need help urgently
Can someone help me please only do it if you know geometry
Answer: i am not sure with the answer but need point pls help
Step-by-step explanation:
Please Help need an answer
A shopkeeper offers his customers 10% discount and still makes a profit of 26%. What is the actual cost to him of an article marked £280.
Answer:
200
Step-by-step explanation:
100% ----------- 280
90% ------------280/100 x 90 = 252
126% ------------ 252
100%-------------252/126 x 100 = 200
Lionel calculator the first quartile median and the interquartile range of a set of data if the first quartile is 5.25 the median is 14.5 and the interquartile range is 27.75 what is the third quartile
Answer:
I am not so sure about this one.
Step-by-step explanation:
The lcm and gcf of two numbers are200 and 10. if one of the number is 50.find the second number
Answer:
40
Step-by-step explanation:
lcm = 200
gcf = 10.
one of the numbers = 50
--------------
LCM(a,b)*GCF(a,b)=a*b
200*10= 50*xx= 2000/50x=40Answer:
40
Step-by-step explanation:
Please help, need fast; 30 points
What is the value of x in this figure?
A.) 103√3
B.) 5√3
C.) 5
D.) 5√2
I think its 5 or 5√3, but don't know
Answer:
B
Step-by-step explanation:
You need to find x, so you'll have to use cos in this case, because x is adjacent to the only angle you have.
So, you'll get:
cos 30 = x/10 (adjacent/hypotenuse)
Rearrange the equation for x:
x = cos 30 x 10
*Since the options you have are in exact values, you can't use a calculator just to find x.
Cos 30 in exact values is √3/2
*you can either memorise these values or learn the trig triangles. either way, just know the exact values for sin, cos and tan for 30, 60 and 90 degrees
So to find x:
x = √3/2 x 10
x = 5√3
Hope that helped : )
Express 43/8
as a decimal correct to
3 significant figures
(A)
(B)
(C)
(D)
4.30
4.37
4.38
4.40
Abcissa is the name of
Answer:
Se conoce como abscisa (vocablo derivado del latín abscissa, “cortada”) a una coordenada de dirección horizontal que aparece en un plano cartesiano rectangular y que se expresa como la distancia que existe entre un punto y el eje vertical. El denominado eje de abscisas representa al eje de coordenadas horizontal
Step-by-step explanation:
porque si
5% of a number is 23 1% of the same number is 4.6 work out 16% of that same number
Answer:
see below
Step-by-step explanation:
If 1% of the number is 4.6 the number will be 4.6 * 100 = 460. 16% of that is 0.16 * 460 = 73.6.
What is the product of the fractions below?
3/4x 7/5
Answer: 12
Step-by-step explanation:
Answer 21/20
Step-by-step explanation:
if you were to solve the following system by substitution, what would be the best variable to solve for and from what equation? 2x+8y=12 3x-8y=11
Answer:
see below
Step-by-step explanation:
2x+8y=12 3x-8y=11
If we have to solve by substitution, Take the first equation and divide by 2
2x/2 + 8y/2 =12/2
x+4y = 6
Then subtract 4y from each side
x = 6 -4y
Then substitute this into the second equation
This is best solved by elimination
2x+8y=12
3x-8y=11
----------------
5x = 36
x = 36/5
If the world population in 2010 is 6.7 million and the rate of growth is by 1.19 percent per year, what will the estimated world population be by 2050?
Answer:
I believe the world population should be 6,700,000,000
Ending Population = Beginning Population * (1 + rate)^years
Ending Population = 6,700,000,000 * (1.19)^40
Ending Population = 7,046,172,293,951
or rounded about 7,046,000,000
(About 7.046 billion)
Step-by-step explanation:
c) Uranus has three moons less than Saturn. Together, they have thirty-three moons. How many
moons does each planet have?
Answer:
Uranus : 15
Saturn : 18
Step-by-step explanation:
Uranus = U
Saturn = S
1) U= S - 3
2) U+ S = 33
1)* U - S = -3
2)* U + S = 33
1)* + 2)* 2U = 30, so U = 15
Then Saturn will have 18 (because they add up to 33)
I need help ASAP I’ll give brainliest to that person :)
Answer:
r = 5 miles
Step-by-step explanation:
[tex]Radius (r) = ?\\Volume = 392.5\\Height (h) = 15\\ V = \frac{1}{3}*pi*r^{2} *h\\392.5= \frac{1}{3} * 3.14 *r^{2} *15\\392.5 * 3 = 1* 3.14 * r^{2} *15\\1,177.5 = 47.1r^{2} \\Divide - both - sides - of -the - equation by 47.1\\r^{2} = 25\\Square -root-both-side-to-eliminate-the-square\\\sqrt{r}^{2} =\sqrt{25} \\r = 5\\r =5 miles[/tex]
Is the graph proportional?
Answer:
Yes, the graph represents a proportional relationship. No, the graph does not represent a proportional relationship. It is a straight line, but it does not intersect the point (0, 0).
Can someone please explain the math on this one to me? Thanks!
Assume that is takes an average of 3 man-hours to stack 1 ton of a particular item. In order to stack 36 tons in 6 hours, the number of people required is _____
Answer:
18 men = 36 tons in 6 hours
Step-by-step explanation:
3 men = 1 ton in 1 hour
6 men = 2 ton in 1 hour
9 men = 3 tons in 1 hour
with this you find a pattern
3 men = 2 tons in 2 hours
3 men = 3 tons in 3 hours
3 men = 6 tons in 6 hours
6 men = 12 tons in 6 hours
9 men = 18 tons in 6 hours
12 men = 24 tons in 6 hours
15 men = 30 tons in 6 hours
18 men = 36 tons in 6 hours
(This is how i worked it out)
Answer:
18 people
Step-by-step explanation:
Method A:
3 man-hours to stack 1 ton
36 tons is 36 times 1 ton, so it takes 36 times as long to stack.
36 * 3 man-hours to stack 36 * 1 ton, or
108 man-hours to stack 36 tons
To do the job in 6 hours instead of 108, you need to do 108/6 = 18 times as much work per hour, so you need 18 times as many people.
18 * 1 person = 18 people
Answer: 18 people
Method B:
1 person works 3 hours and stacks 1 ton. That same person works another 3 hours and stacks another ton. In a total of 6 hours, 1 person stacked 2 tons. Since you need 36 tons stacked in the same 6 hours, and 36 = 18 * 2, you need 18 times the number of people, so you need 18 people.
How much is (2.5-3 minutes)
Answer:
150 - 180 seconds
Step-by-step explanation:
Let change minutes to seconds
1 minute = 60 seconds
2.5 minutes * 60 =150 seconds
3 minutes * 60 = 180 seconds
150 - 180 seconds