Answer:
3 - 30+15
Step-by-step explanation:
take the outside number and multiply it by each individual number in the parenthesis one at a time
A certain radioactive isotope has a half-life of 50 years. A scientist determines that there are 200 grams of the radioactive material present today. How
Much of the isotope was present 200 years ago?
im guessing 800 50X4 = 200 and 200X4 = 800
i never learned this but i hope its correct.
What is the true answer?
Answer:
What is that stuff
Step-by-step explanation:
It is C i think?
Answer:
first and last one
Step-by-step explanation:
Which equation represents the line passing through the points (4, −1) and (1, 0)?
Select one:
A. x + 3y = 1
B. 3x + y = 1
C. x − 3y = −1
D. −x + 3y = 1
Which of the following is equivalent to 75/100? A 2/3 B 10/15 C 25/50 D 15/20
Answer:
D. 15/20
Step-by-step explanation: Because if it is 100 divide by 5 then it equals 20 and since 75% is 3/4 then 15/20 is your answer.
Answer:
D 15/20
Step-by-step explanation:
Solve for r.
12-1/5r=2r+1
Answer:
r = 5
Step-by-step explanation:
I hope this helps djndjdnnznz
Asafa runs 0.75 kilometers in 6 minutes. Jemaine runs 3,000 meters in half an hour. Who ran at a faster rate?
Answer:
Asafa ran at a faster rateStep-by-step explanation:
Asafa's speed:
0.75 km/ 6 min = 750 m/ 6 min = 125 m/minJemaine's speed:
3000 m / 30 min = 100 m/minAsafa ran at faster rate as 125 m/min > 100 m/min
In a class of 12 boys and 8 girls, two students need to be chosen for classroom jobs.
What is the probability that Mary gets selected?
Answer:
55 percent chance or 11/20 or 0.55
Step-by-step explanation
Solve for x in the diagram shown.
A) 2.67
B) 4.5
C)5.625
D) 34.375
Answer: C
Step-by-step explanation:
A light tower is going to be installed on the left edge of the Skywalk as indicated in the diagram above. The light will shine down to the opposite edge of the Skywalk indicated with the star in the diagram above. How tall does the light tower need to be if the angle of depression is 51°?
The diagram indicating the light tower is below.
Answer: Tower has to be 86.45 ft high.
Step-by-step explanation: The second attachment shows the right triangle formed by the tower, the floor and the point the light will shine.
Using trigonometric relations among the angle and the sides of the triangle we will have:
[tex]tan(51)=\frac{h}{70}[/tex]
h = 70*tan(51)
h = 86.45
The tower has to be 86.45 ft tall for the angle of depression to be 51°
Pic below
....................
Answer:
b=2
Step-by-step explanation:
my uh head
but like u add 9/3 to -1 and get 2 so ya
hope this helps a bit <33
How do you write 7/10 as a percentage?
Answer:
70%
Step-by-step explanation:
Answer:
70%
Step-by-step explanation:
Answer all of these
18% of 34
27% of 81
85% of 74
54% of 90
33% of 360
TOPIC
62% of 75
4% of 56
6% of 140
© 12% of 625
5% of 134
Finding a Percent of a
90% of 44
9% of 17
48% of 20
70% of 69
2% of 800
Some doctors recommend that no more than 30% of a
person's daily calones come from fats. Following this
recommendation. If you eat 2,400 calones in a day, what
is the maximum number that should come from fats?
When training for a fight Rocky tries to maintain a heart
rate that is 80% of his maximum heart rate, Rocky has a
resting heart rate of 60 and a maximum heart rate of
175 beats per minute. What is his training heart rate?
mbe
Answer:
18% of 34 = 6.1227% of 81 = 21.8785% of 74 = 62.954% of 90 = 48.633% of 360 = 118.862% of 75 = 46.54% of 56 = 2.246% of 140 = 8.412% of 625 = 755% of 134 = 6.790% of 44 = 39.69% of 17 = 1.5348% of 20 = 9.670% of 69 = 48.32% of 800 = 16-------------------------------------
30% of 2400 = 720 calories--------------------------------------
80% of 175 = 140 beats per minutewhat is the slope of the line that is represented by the values in the table above?
Answer:
Answer:
Step-by-step explanation:
To get the slope of the line of the given table of values, all we need is just 2 coordinate pairs from the table. We can pick any two.
Let's use, (-1, 0), and (0, 6).
slope (m) =6
Step-by-step explanation:
Answer:
whats the answer dang
Step-by-step explanation:
Lamar is considering two loans.
Loan A
Loan B
Principal
$4,500
$4,300
Interest rate
5%
6%
Time in years
3
3
Which loan will have the lowest total payback?
Step-by-step explanation:
know:
Loan A
Principal
$4500
Interest rate
5%
Time in years
3
If 100% => $4500
5% =>X
X = 5% × $4500 ÷ 100% = $225
Loan A = $4500 + $225 = $4725
Loan B
Principal
$4300
Interest
6%
Time in years
3
If 100% => $4300
6% =>X
X = 6% × $4300 ÷ 100% = $258
Loan B = $4300 + $258 = $4558
Loan B has the lowest total payback.
The Loan B has the lowest total payback than the Loan A.
How to calculate the Payback?WE can calculate the payback in both loan as;
Loan A;
Principal = $4500
Interest rate = 5%
Time in years = 3
If 100% => $4500
X = 5% × $4500 ÷ 100%
X = $225
Loan A = $4500 + $225 = $4725
Loan B;
Principal = $4300
Interest = 6%
Time in years = 3
If 100% => $4300
X = 6% × $4300 ÷ 100%
X= $258
Loan B = $4300 + $258 = $4558
Hence, the Loan B has the lowest total payback than the Loan A.
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In a school choir there is 1 boy for every 4 girls. There is a total of 11 boys. How many girls are in the choir.
Answer:
44 Girls
Step-by-step explanation:
Evaluate 15 squared show work
Answer:
225
Step-by-step explanation:
15x15=225
There is a cool trick you can do. Lets take 28 and square it.
First you round the number up. 28 rounded is 30. You rounded up by 2 (30-28=2) so you minus 2 from 28.
You are left with these two numbers, 26 and 30. Add a zero to the 26.
You now have 260 and 3 (you remove 0 on the 30 since you added it to the 26)
Then you multiply by 3.
260x3=780
Then you add the square of the number you rounded up too, which is 2.
You are left with this equation.
(2^2)+780= 784
28x28=784.
This works for numbers below 100 and integers
Which expression is equivalent to (2x − 3)(x + 4) ?
Answer:
Step-by-step explanation:
2x2 + 8x - 3x - 12
2x2 + 5x - 12 is equivalent to the given expression
Answer:
[tex]2x^{2} +5x-12[/tex]
Step-by-step explanation:
Need help on this one please and thank you
Answer:
64x64x64=262,144
Step-by-step explanation: mark as brainest plsssssssssssssss
Help with find the measure of angle A
Answer:
92 canım
Step-by-step explanation:
Anlamadıysan geri sorarsın ve yorumumu beğenirsin tmm mi what iş kaçıncı sınıf taşan bana söyle
Lizzie buys 3 clocks for a total cost of £50 at a car boot sale. She sells 2 clocks for £22 each and the other for clock for £20 Lizzie thinks she has made a 30% profit
Answer:
yes she made 30% profit it says she sell 2 clocks for 20 and 22 each for the other ones
Step-by-step explanation:
Ms manning arranges the desks in her classrooms in rows and columns. There are 4 rows. There are 6 desks in each row. How many desks are there in Manning classroom?
24 desks
Step-by-step explanation:
There are 24 desks because 4 rows multiplied by 6 desks in each row = 24 desks.
These points are linear. Find the slope.
please help me please
Answer:
y=1
10/5=2
Step-by-step explanation:
Need help plz don’t know what is the answer.
Answer:
A
Step-by-step explanation:
If you subtract 4 and add 16 you get 37
The square root of 36 is 6 and the square root of 49 is 7
so since 37 is closer to 36 it has to be than 7 and a little more than 6
Answer:
A. between 6.0 and 6.2
Step-by-step explanation:
solver using order of operations (PEMDAS)
[tex]\sqrt{25-4+16} \\\sqrt{21+16} \\\sqrt{37}\\6.08[/tex]
now that we have our answer we can see what numbers it fall between which are 6.0 and 6.2, giving us answer A
how to graph y+9= -3x and find x-intercept
what are 2 ratios equivalent to 2:12
Answer:
possible answers include 1:6 and 4:24
Step-by-step explanation:
think of ratios like fractions. you can simplify a fraction by dividing each number by the same factor. 2/12 = 1/6 because you divide the top and bottom by 2. now, you need ANOTHER response. if you can divide the top and bottom you can also multiply. 2/12 now multiply 2 and 12 by 2 and you get 4/24.
When two variables are in a proportional relationship, which of the
following is true about their values. *
their sums are a constant
their differences are a constant
their products are a constant
their quotients are a constant
Submit
Answer:
Their quotients are a constant
Step-by-step explanation:
Required
Quotient of two variable
Let the variables be x and y
The quotient of x and y in this case is their constant of variation.
Take for instance:
[tex](x_1,y_1) = (2,4)[/tex]
[tex](x_2,y_2) = (4,8)[/tex]
[tex](x_3,y_3) = (8,16)[/tex]
Their quotient is calculated as follows:
[tex]Quotient = \frac{y}{x}[/tex]
[tex](x_1,y_1) = (2,4)[/tex]
[tex]Quotient = \frac{4}{2} = 2[/tex]
[tex](x_2,y_2) = (4,8)[/tex]
[tex]Quotient = \frac{8}{4} = 2[/tex]
[tex](x_3,y_3) = (8,16)[/tex]
[tex]Quotient = \frac{16}{8} = 2[/tex]
Notice that the quotient has a constant value of 2.
However, the sum, difference or products will give a different set of values entirely.
Hence, option (d) is correct
How is the space between consecutive whole numbers divided on the number line?
O into halves
O into fifths
O into sixths
O into sevenths
C. INTO SIXTHS
I LITRALLY JUST TOOK THE TEST ON EDGE. SO YOU CAN TAKE MY WORD FOR IT
I HOPE I WASNT TOO LATE. IF I WAS, SORRY
The number of grids or intervals on the given number line between any two consecutive whole numbers is six thus option (C) is correct.
What is a number line?In mathematics, a number line is a straight line containing numbers arranged at equal segments or periods throughout its duration.
A horizontal number line is the most common representation and can be extended infinitely in any direction.
As per the given number line,
Since 1 is a whole number and 2 is also a whole number.
The number of intervals between 1 and 2 is 6.
Thus, between consecutive whole numbers divided on the number line is 6.
Hence "The number of grids or intervals on the given number line between any two consecutive whole numbers is six".
To learn more about the number line,
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Quick Help please !!! Don’t really know what to do :(
Answer:
do you have to find the perimeters? or areas?
Step-by-step explanation:
Read the excerpt from Silent Spring.
On the farms the hens brooded, but no chicks hatched. The farmers complained that they were unable to raise any pigs—the litters were small and the young survived only a few days. The apple trees were coming into bloom but no bees droned among the blossoms, so there was no pollination and there would be no fruit.
The repetition of the word “no” in this excerpt helps create a tone of
motivation.
doom.
acceptance.
violence.
Answer:
B.) Doom
Step-by-step explanation:
I just did that test on Edge.
The repetition of the word “no” in this excerpt helps create a tone of doom.
What is tone?Tone in literature is the general character as well as the attitude of the author on the piece of writing or the situation.
In the case of the text, doom was used which means the predicament or unpleasant situation that took place in the farms when the hens brooded, but no chicks hatched.
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