Answer:
10boys, 17 girls
Step-by-step explanation:
10+17=27,
17-10=7
Answer: there are 17 girls in the class
Step-by-step explanation:
let the number of boys be x
and the number of girls be re[presented as 7+x
Since there are a class of 27 containing the sum of the boys and girls, we have our equation as
boys +girls =27
x+ 7+x=27
7+2x =27
2x=27-7
2x=20
x=20/2=10
Boys =x=10
girls= 7+x=7+10=17
See similar question here: https://brainly.com/question/21953702
need help in math!!!
Answer:
(3,15)
Step-by-step explanation:
Rule 1
5x = y
Rule 2
x+12 = y
Set them equal
5x = x+12
Subtract x from each side
5x-x = x+12-x
4x= 12
Divide by 4
4x/4 = 12/4
x=3
5x=y
5*3 = y
15 = y
The solution is (3,15)
Given rules
y=5xy=x+12Equate and solve
5x=x+124x=12x=3Opt ion B is correct as no other contains 3 as x
Given:
f(n) = 7n – 5
Evaluate
n = -3
Answer:
f(-3)= -26
Step-by-step explanation:
PLEASE Help!!!!
Jeanne makes jewelry and has an idea for a new pair of earrings. She wants to make a sketch of her design, but only has a marker, a pencil, two pieces of paper, and a coffee mug. Use these items to construct the shape of the earring Jeanne is envisioning.
Step 1: Jeanne traced her coffee mug on her piece of paper. How might she use paper-folding to find the center of the circle? (2 points)
Step 2: Show how a second circle should be drawn in order to continue the construction. What can you say about the radii? Explain your work. (4 points)
Step 3: Describe the final steps in constructing the shape of the earring. Include a drawing.(2 points)
To complete her design Jeane will need to draw a smaller circle within the circle, and by using this circle and previous lines she can create the diamond design.
What should Jeane do after tracing the first circle?The second step is to fold the paper vertically and horizontally to determine the lines that divide it by half.
What is the third step?The third step is to draw a smaller circle within the first circle and make sure the circles are aligned in the center. This circle will have a smaller radius than the first one.
What is the final step?By using the previous lines Jeane should draw the desired design as shown in the image.
Learn more about circles in: https://brainly.com/question/11833983
Which number is divisible by 6? a.2244 b.1209 c.2630 d.2991
Answer:
a)2244 is divisible by 6
Step-by-step explanation:
2244/6=374
1209/6=201.5
2630/6=438.333
2991/6=498.5
Consider the function f(t) =
√2-9.
(a) Find the domain of f(t). Express your answer as an interval or union of intervals.
??
(b) Solve f(t) = 4. Enter your answer
a comma separated list.
t =??
what is four fifteenths times two thirds?
Answer:
Try 0.17? I hope it's right
Answer:
2 10/15 or 2 2/3 (simplified)
Step-by-step explanation:
To Multiply we need to get the same denominator for each fraction:
2 x 5 =10
3 x 5 =15
10/15
4/15 x 10/15 (or) 4 x 10 = 40/15
40/15 (also) = 2 10/15
2 2/3 (simplified version of 2 10/15)
Hope This Helps! :)
You go to the grocery store to buy milk and some eggs. Milk costs $3.67 and eggs cost $2.40. You want to make sure you have enough money. Estimate the cost of these two items to the nearest ones place.
Answer:
Step-by-step explanation:
Let's start by round 3.67. We look at the key digit which is 6 in this case. Since 6 is greater than 5, 3.67 will round up to 4.
The key digit in 2.40 is 4. 4 is not greater than 5, so we round down to 2.
2+4=6
Therefore, an estimate of these two items to the nearest ones place is $6.
Answer:
$2 for the eggs and $4 for the milk
Step-by-step explanation:
Since the eggs cost $2.40 and after the 2 you can see that there is a 4, " 5 or more we add one more, 4 or less just ignore", so it stays $2. However the milk costs $3.67, and here you can see that after the 3 there is a 4, so since it's more than 5 we change the estimated amount to $4.
I hope you understood, and I hope the answer is right :)
Here are 2 points in the plane.
Using only a straightedge,can you find points in the plane that are the same distance from points A and B. Explain your reasoning
9514 1404 393
Answer:
no
Step-by-step explanation:
Using only a straightedge, you cannot measure distance, so cannot ensure that any two distances are the same.
__
The points of interest are on the perpendicular bisector of AB, which can be constructed using a compass and straightedge. The straightedge alone is insufficient.
Select the correct answer. Each statement describes a transformation of the graph of f(x) = x. Which statement correctly describes the graph of g(x) if g(x) = f(x) - 3? A.It is the graph of f(x) translated 3 units down. B.It is the graph of f(x) translated 3 units to the left. C.It is the graph of f(x) where the slope is decreased by 3. D. It is the graph of f(x) translated 3 units up.
Answer: Choice A) translated 3 units down
Explanation:
x is the input while y = f(x) is the output. If we say f(x) - 3, then it's the same as saying y - 3. This means g(x) = f(x) - 3 subtracts 3 from each y coordinate of the points on f(x). This visually moves the entire f(x) curve down 3 units
What do these have in common??
Answer:
They can all be simplified to 2/3
Which of the following is not a polynomial?
O A. 3x4
O B. x8+2x3 +7
O C. 5x10 - 4x8 + 2
O D. 5- x2 + 7x0
Answer:
C
Step-by-step explanation:
is not a polynomial because it has a negative exponent.
Which of the following tables represent functions? If the relation is not a function, indicate why it is not.
Step-by-step explanation:
1. the table on the left is a function, with the formula : y = x²
2. the table on the right is also a function, indicated by the values of the input are different each others
-3x - 4 = 11 is which property of equality?
Answer:
x= _5 is the correct answer
please help me solve that question
Step-by-step explanation:
[tex]\sin(\theta + \phi) = 2\cos(\theta - \phi)[/tex]
Using the addition identity formulas, we can write
[tex]\sin{\theta}\cos{\phi} + \cos{\theta}\sin{\phi} = 2\cos{\theta}\cos{\phi} + 2\sin{\theta}\sin{\phi}[/tex]
Dividing both sides by [tex]\cos{\phi}[/tex], we get
[tex]\sin{\theta} + \cos{\theta}\tan{\phi} = 2\cos{\theta} + 2\sin{\theta}\tan{\phi}[/tex]
Dividing both sides by [tex]\sin{\theta}[/tex], we get
[tex]\tan{\theta} + \tan{\phi} = 2 + 2\tan{\theta}\tan{\phi}[/tex]
or
[tex]\tan{\theta}(1 - 2\tan{\phi}) = 2 - \tan{\phi}[/tex]
Rearranging the terms,
[tex]\tan{\theta} = \dfrac{2 - \tan{\phi}}{1 - 2\tan{\phi}}[/tex]
Se hizo un estudio entre los estudiantes de Licenciatura en ingeniería de software y sistemas computacionales, a 40 de estos estudiantes se les pidió que estimen el número de horas que habrían dedicado a estudiar la semana pasada (tanto en clase como fuera de ella), obteniéndose los siguientes resultados:
Sean burns 8.5 calories per minute when he runs. How many calories does he burn if he
runs for 45 minutes?
Answer:382.5
Step-by-step explanation: 45 x 8.5 = 382.5
Which expression is another way to write 10,000?
10 × 10 × 10
10 × 10 × 10 × 10
10 × 10 × 10 × 10 × 10
10 × 10 × 10 × 10 × 10 × 10
Answer:
it's the second one
Step-by-step explanation:
the number of zeros behind the first number is the amount of tens! hope it helps!
2
1,0,0.2, 73, 7.9, 136
3
9.736
a. List all the natural numbers from the given set.
What numbers are natural today
Answer:
1,2,73,and 136
Step-by-step explanation:
hope this helps
mark me as brainliest plz
Help plz ASAp 12345678910112
Answer:
1st box 2nd box 4th box and 7th box
Step-by-step explanation:
Use the converse of the Pythagorean Theorem to check whether a triangle whose sides are of lengths 11, 60, and 61 is a right triangle.
First square the lengths of the sides.
11^2 =
60^2 =
61^2 =
Answer:
yes a right triangle
Step-by-step explanation:
Using the converse of Pythagoras' theorem.
If the square on the longest side is equal to the sum of the squares on the other 2 sides then the triangle is right.
longest side = 61 and 61² = 3721 , then
60² + 11² = 3600 + 121 = 3721
Since 61² = 60² + 11² then the triangle is right.
List all the digit even numbers that can be created by rearranging these number tiles
1
6
5
8
If your teacher is referring to four digit numbers with those tiles, where the tiles cant repeat, then we have 2 choices for the last slot (the units digit). Those two choices are: 6,8.
Recall that a number is only even if and only if the units digit is even (0,2,4,6,8).
Once a choice has been made for the units digit, we have...
3 choices for the thousands digit (whatever we didn't pick for the units digit)2 choices for the hundreds digit1 choice for the tens digitOverall, we have 2*3*2*1 = 12 different four digit numbers possible.
Those 12 numbers are:
value = 1658value = 1568value = 5168value = 5618value = 6158value = 6518value = 1856value = 1586value = 5186value = 5816value = 8156value = 8516what is the ratio 0.6:2.4 written in simplest form
Answer:
1:4
Step-by-step explanation:
multiply both sides by 10 to get whole numbers which will be 6:24. then divide by the GCF which is 6 and you get 1:4
What is the product 1.3(-3.1)(4.2)
The value of product will be;
⇒ 16.926
What is Multiplication?To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
Given that;
The expression is,
⇒ 1.3 (- 3.1) (4.2)
Now,
Since, The expression is,
⇒ 1.3 (- 3.1) (4.2)
After product, we get;
⇒ 1.3 × (- 3.1) × (4.2)
⇒ 4.03 × 4.2
⇒ 16.926
Thus, The value is = 16.926
Learn more about the multiplication visit:
brainly.com/question/10873737
#SPJ2
Find the area and the circumference of a circle with radius 7 ft.
Answer:
Area is 307.72 ft^2
Circumference is 43.96 ft
Step-by-step explanation:
Area is 2pir^2
Circumference is 2rpi
pi is about 3.14
A=2pi(7)^2
A= 98pi which is about 307.72 ft^2
C= 2(7)pi
C= 14pi which is about 43.96 ft
(I'm not sure whether they want the answer left in terms of pi or not)
3 over 2
List all of the number sets that contain the number
А. rational numbers only
В.
rational numbers and integers
C rational numbers and natural numbers
D rational number, integers, and natural numbers
Adnan earns $48,000 per year. His employer offers him a 4 % raise if he stays with the company What would his new salary be ?
A. 49,929
B. 1,920
C.46,080
D. 192,000
Answer:
A. 49,920
Step-by-step explanation:
Multiply the beginning value by 1 plus the percentage in decimal form.
Select the correct answer.
Which statement best describes the zeros of the function () = (x-6)(X + 8x + 16)?
ОА.
The function has two distinct real zeros.
ОВ.
The function has three distinct real zeros.
OC. The function has one real zero and two complex zeros.
OD
The function has three complex zeros.
Answer:
So for the sequence to work, the 5,3=18 would have to be changed to 5,3=23 in which it now fits and works to solve for x which is 4. There was a pattern of the numbers 4 and 5 that surfaced as the difference between each pairings sum total. The difference between each sum was alternating between the numbers 4 and 5, which equal 9 when added together. Which also helped me to form a chart of sorts that makes sense. My answer is typed above, that is the most stable conclusion that I could come to to make sense of the pairings that were listed.
Answer: A (if i have well corrected)
Step-by-step explanation:
[tex]f(x)=(x-6)(x^2+8x+16)\ i\ suppose)\\\\f(x)=(x-6)(x+4)^2\\Sol=\{6;-4\}\\Answer \ A[/tex]
Integer rules:
When adding Integers with the same sign you
Add,subtract,multiply
them and keep the sign.
When adding integers with different signs you
Add,subtract,multiply
them and keep the sign of the bigger number.
To make subtracting integers easler, you can change all subtraction problems to
Word,multiplication,addition
problems.
Betty Learned how to play a total of 14 songs over the course of 7 weeks of piano lessons.In all, how many weeks of piano lessons will Betty need before she be able to play a total of 36 songs? Solve using unit rates.
Answer:
18 weeks
Step-by-step explanation:
14 songs / 7 weeks
2 songs per week
36 songs * 1 week/ 2 songs
36 /2 weeks
18 weeks
Write the following number in
scientific notation.
0.05796
[? ][ ]
Answer:
[tex]0.05796 = 5.796 \times {10}^{ - 2} [/tex]
I hope I helped you^_^
Answer:
Step-by-step explanation:
Scientific notation is always written as a number between 1 and 9.999999. The number after the decimal is shown by a power of 10.
so 0.05796 = 5.796 * 10^-2
which means that the decimal was moved to represent a number less than one. That's the point of the minus sign. The two comes from the number of places you have to shift the decimal to get a number between 1 and 10.