Answer:
125 coins
Step-by-step explanation
realized that 25 coins would be 20% of the amount of coins in the jar. Multiply 5 on both and you see that 125 coins is 100% the amount that is in the jar.
hope this helps :)
reply If you need a more proper explanation.
The number of coins in the jar are 125 coins.
What is the percentage?Percentage is a way to express a number as a fraction of 100. It is often used to represent ratios and proportions in a more convenient and understandable form, especially in financial and statistical contexts. It is denoted using the symbol "%".
We know that 16% of the coins in the jar are pennies. Let's represent the total number of coins in the jar as "x".
Then, we can set up the following equation:
0.16x = 20
Solving for "x", we can divide both sides by 0.16:
x = 20/0.16
x = 125
Therefore, there are 125 coins in the jar.
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FINAL QUESTION WILL GIVE BRAINLIEST TO CORRECT ANSWER!!! PLEASE SHOW WORK!!
Answer:
(-1,-6)
Step-by-step explanation:
A rectangular cake pan is 13 inches by 9 inches by 2 inches. A round cake pan has a diameter of 8 inches and a height of 2 inches. Which will hold more batter, one rectangular pan or two round pans?
A farmer had 640 bag of maize each having a mass of 120kg .After drying the maize, the mass decreased in the ratio 15:16.calculate the total mass lost after the maize was dried?
Answer:
72,000kg
Step-by-step explanation:
So, we know that there are 640 bags.
Each bag has a mass of 120kg.
The mass shrinks at a ration of 15:16
So, we can think of the total mass as 120x640:
120*640
=
76,800kg
Next, we can think of the dried mass as 15/16 of the 76,800kg. This is because the dried ration was 15, and the orgninal ration was 16:
76,800/16
=
4,800kg
This isnt our end answer, next we have to multiply this by 15, to find the dried ration:
4,800*15
=
72,000kg
Hope this helps!
Emily invested $2,000 in an account at a 3.5% interest rate. She kept the money in her account for four years. Determine, to the nearest dollar, the balance in the account after four years.
Answer:
$280
Step-by-step explanation:
$2000 * 3.5% * 4 = $8000 * 0.035 = $280
James molded a fraction by shadding the parts of the circle as shown
Select all the fractions that are equivalent to the fraction James molded
the fraction James molded is 1/4
( PLEASE HELPPP)
the answer that is equal to 1/4 is 2/8 3/12 and 4/16
which two angles named below are supplementary in the figure? ill give brainliest
Answer:
D. Angles 4 and 7
Step-by-step explanation:
Answer 1 and 4 are supplementary angles.
Step-by-step explanation:
Supplementary angles are angles adding up to 180, the only angles listed that are supplementary angles is 1 and 4.
Have a good day!
plzz help asap, I'll mark you the brainliest if you tell me how to solve this with step by step explanation ❤❤
if x+y+z=1 and 1/x+1/y+1/z=0
what is x²+y²+z²=?
A) 0
B) 1
C) 2
D) 3
Answer:
B
Step-by-step explanation:
Given
[tex]\frac{1}{x}[/tex] + [tex]\frac{1}{y}[/tex] + [tex]\frac{1}{z}[/tex] = 0 , then
[tex]\frac{yz+zx+xy}{xyz}[/tex] = 0 , so
yz + zx + xy = 0
Now
(x + y + z)² = x² + y² + z² + 2(xy + yz + zx) , that is
1² = x² + y² + z² + 2(0) , thus
x² + y² + z² = 1
a diagram shows a cube cut in half along one of its diagonal planes
each edge of the original cube has a length xcm
the diagonal y has a length 20cm
The length is 11.5 cm.
What is Pythagoras theorem?The sum of the squares on the legs of a right triangle is equal to the square on the hypotenuse
Given: diagonal = 20 cm
In ABC,
AC² = BC² + AB²
AC²= x² + x²
AC²= 2x²
AC= √2 x
IN ACF,
AF² = AC² +CF²
20²= 2x² + x²
400= 3x²
400/3= x²
x= 11.5
hence, length is 11.5 cm.
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Mhanifa please help! This is due soon
Answer:
1) x²=256-64
x=8√3
2). x²=200+81
x=√281
3). x²=169+36
x=√205
3).
Step-by-step explanation:
here's your solution
==> in figure 1,
= perpendicular^2 = hypotenuse^2 - base^2
= x^2 = 16^2 - 8^2
= x^2 = 256 - 64
= x^2 = 192
= x = √192
= x = 13.85
==> in figure 2,
= hypotenuse^2 = Perpendicular^2 + base^2
= x^2 = 40^2 + 9^2
= x^2 = 1600 + 81
= x^2 = 1681
= x = √1681
= x = 41
==> in figure 3,
= hypotenuse^2 = Perpendicular^2 + base^2
= x^2 = 13^2 + 6^2
= x^2 = 169 + 36
= x^2 = 205
= x = √205
= x = 14.31
[tex]hope \: it \: helps.....[/tex]
Homework please help
Answer:
A
Step-by-step explanation:
[tex]y = \frac{9}{4}x - 8 \\\\y = \frac{9}{4}x +\frac{9}{4} \\\\\frac{9}{4}x - 8 = \frac{9}{4}x +\frac{9}{4}\\\\-8 = \frac{9}{4}\\[/tex]
This equation is incorrect, therefore there are no solutions.
Which number will have the same result, when rounded to the nearest hundred or thousand? (3-5) A 1,049 B 1,118 and 5 C 1,179 D 2,149
Answer:
The answer is "Option A".
Step-by-step explanation:
In this question except for choice "A", all the value is not nearest about the hundred or thousand, that why the correct answer is "1,049".
Are 0.34 and 3/4 equivalent? Explain your answer in complete sentences.
Answer:
No because 3/4 is equal to 0.75 and 0.75 is not equal to 0.34
Step-by-step explanation:
Answer:
No. 3/4 is equavilent to 0.75 not 0.34.
Complete the square to write each equation in vertex form. Then, state whether the vertex is a minimum or a maximum and give its coordinates.
Answer:
vertex form: y = (x + 3)² + 1 the vertex is minimum coordinates of the vertex: (-3, 1)Step-by-step explanation:
[tex]y=x^2+6x+10\\\\y=x^2+6x+9-9+10\\\\\bold{y=(x+3)^2+1}[/tex]
a = 1 > 0 ← it means the parabla opens up, so, the vertex is minimum
The vertex form is y = a(x - h)² + k, where (h, k) is the vertex
So, from y = (x + 3)² + 1 the vertex is: (-3, 1)
Please Help?
The amount of rain 90 minutes after it started raining was the same as the amount 120 minutes after it started raining.
Answer:
ok, the correct answer should be R(1.5)=R(2)!
Step-by-step explanation:
I did this my class before!
In the diagram below, AB = 15, DB = 6, BC = 8, and
mZB = 90°. What is the perimeter of triangle ADC?
Answer:
B 36
Step-by-step explanation:
DC^2=6^2+8^2. AD=9cm DB=6cm
DC^2=36+64
DC^2=100
DC=√100
DC=10cm
AC^2=15^2+8^2
AC^2=225+64
AC^2=289
AC=√289
AC=17
P OF TRIANGLE ADC=10+9+17
=36cm
I neep help asap deadline 4:00pm
Answer:
x = -2 to x = 1
Step-by-step explanation:
A function is constant when the y value does not change (i.e. the graph is a horizontal line). This is true between x = -2 and x = 1.
Answer:The Funcation is Constact from x=-5 to x=8
Step-by-step explanation:
tina worked out the median of the number of points scored to be 5
a) explain why it's not possible for the median to be 5?
number of points - frequency
0 1
1 3
2 5
3 4
4 3
Answer:
Could you explain this more nicley, this is quite hard to read
Step-by-step explanation:
You are building an entertainment center for a television. You need to
know the width, height, and diagonal of the
television. The width of the television is 36 inches. The length of the
diagonal of the television is 45 inches. Determine the
height of the television.
CAN SOMEONE HELP ME PLEASE!!! I WILL GIVE THE BRAINIEST AND 100 POINTS!!!
Step-by-step explanation:
the length of hypotenuse =
√(21²+28²) = √(441+784)
= √1225
= 35 yd
the perimeter of triangle =
21+28+35 = 84 yd
the area of triangle =
½×21×28 = 294 yd²
Answer: 35 yd
Step-by-step explanation:
28^2+21^2=1225
√1225
=35
Rose is fishing from a small boat. A fish swimming at the same depth as the hook at the end of her fishing line is 8 meters away from the hook.
The question is incomplete, as the depth of the hook isn't given in the question. However, using a proposed depth for the hook, we could give a stepwise solution to the exercise.
Answer:
Kindly check explanation
Step-by-step explanation:
If given a hook depth of 6 meters, and a distance of 8 m(fishing line from hook) at the the Same depth, then the distance between rose and the fish, x can be calculated, using the relation.
Hypotenus² = opposite² + adjacent²
(refer to attached picture)
x² = 6² + 8²
x² = 36 +. 64
x² = 100
x = sqrt(100)
x = 10 meters
You can use the actual depth value to obtain the actual solution to your question.
A magazine rack contains 5 sports magazines, 7 news magazines, and 10 fashion magazines. After a magazine is chosen, it is not replaced. Find the probability of randomly choosing two fashion magazines.
how many 1/4 are in 6
Answer:
24
Step-by-step explanation:
To answer this you simply need to divide 6 by 1/4
or
6÷1/4
which is also equivalent to 6*4
this will get you 24
The half-life of radium is 1620 years. If a laboratory has 12 grams of radium, how long will it take before it has 8 grams of radium left?
a 947.6 years
b 804.3 years
c 797.5 years
d 849.5 years
Step-by-step explanation:
A = A02^(-t/hl) ---> ln(A/A0) = -(t/hl)ln2
solving for t,
t = -(hl)ln(A/A0)/ln2
= -(1620 yrs)×ln(8/12)/ln2
= 947.6 yrs
974.6 years It will take before it has 8 grams of radium left,
Given that,
The half-life of radium is 1620 years
Laboratory has 12 grams of radium,
We have to determine,
How long will it take before it has 8 grams of radium left.
According to the question,
Laboratory has radium = 12 grams
Left radium = 8 grams
Half life of radium [tex]_t_\frac{1}{2}[/tex] = 1620 years.
[tex]N = N_o [\frac{1}{2}]^{n} \\\\8 = 12 [\frac{1}{2}] ^{n}\\\\\frac{8}{12} } =[ \frac{1}{2} ]^{n}\\\\ log2 - log3 = n( log1 - log2)\\\\0.30-0.47 = n (0 - 0.30)\\\\-0.17 = -0.30 n\\\\n = 0.56[/tex]
It will take before it has 8 grams of radium left,
[tex]t = n \times t_\frac{1}{2} \\\\t = 0.56 \times 1620\\\\t = 974.6 \ years[/tex]
Hence, 974.6 years It will take before it has 8 grams of radium left,
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A lacrosse league has 20 teams in it's first year. The number of teams in the league increases by 20.% in it's 2nd year. In the 3rd year the number of teams increases by 25% from the 2nd year. How many are in the league in the 3rd year?
The required number of teams in 3rd year is given as 28 teams.
What is the percentage?The percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.
here,
According to the quesiton,
Numbers of team in 2nd year = 20% of 20 + 20
= 0.2 × 20 + 20
= 24 teams
Number of team in 3rd year = 25% of 24 + 24
= 0.25 × 24 + 22
= 28 teams
Thus, the required number of teams in 3rd year is given as 28 teams.
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Complete the square to write each equation in vertex form. Then, state whether the vertex is a minimum or a maximum and give its coordinates.
Answer:
vertex form: y = (x + 1)² - 3 the vertex is minimum coordinates of the vertex: (-1, -3)Step-by-step explanation:
[tex]y=x^2+2x-2\\\\y=x^2+2x+1-1-2\\\\\bold{y=(x+1)^2-3}[/tex]
a = 1 > 0 ← it means the parabla opens up, so, the vertex is minimum
The vertex form is y = a(x - h)² + k, where (h, k) is the vertex
So, from y = (x + 1)² - 3 the vertex is: (-1, -3)
Find the value of x...........
Answer:
x = 7°
Step-by-step explanation:
(8x + 6)° + 118° = 180°
8x = 56°
x = 7°
Write 63/90 and 30/42 as fraction In simplest form then determine whether the ratio form a proportion
Answer:
7/10 and 5/7 the ratio does not form a proportion
What is
-3/5
as a decimal?
Enter your answer in the box.
Answer:
-0.6
Step-by-step explanation:
minus 3 divided by 5 equals minus 0.6
Round off 5698 and 8236to the nearest tens.After rounding them off, add them. Then, Round off the sum to the nearest hundred. What do you get?
Answer:
13900
Step-by-step explanation:
Round off 5698 to it nearest tens
5700
Then Round off 8236 to its nearest tens
8240
Add up 5700 + 8240 = 13940
Round off 13940 to its nearest hundred
13900
find the y intercept of y=4x-2
Answer:
y intercept: -2
Step-by-step explanation:
hope this helps :)
Answer:
Slope=4 and the intercept on the y-axis is -2
Step-by-step explanation:
Use the formula y=mx+c
m=slope
c is the intercept on the y-axis
y=4x-2 can be like this
Y=4x+(-2)
That is why slope is 4 and intercept on y-axis is -2
:)