Answer:
No. of boys = 15
Step-by-step explanation:
Given that,
The ratio of boys to student is 3:7.
Number of girls in the school = 20
We need to find the number of boys in the school.
Let there are 3x boys and 7x number of students.
No. of girls = Total students - no. of boys
= 7x-3x
= 4x
ATQ,
4x = 20
x = 5
No. of boys = 3x
= 3(5)
= 15
Hence, there are 15 boys in the school.
i need someone to solve for the variable and show how plzz
Answer:
Step-by-step explanation:
2(x + 15)⁰ + (3x + 20)⁰=180⁰
2x + 30⁰ + 3x + 20⁰=180⁰
2x + 3x + 30⁰ + 20⁰=180⁰
5x + 50⁰ - 50⁰=180⁰-50⁰
5x=130⁰
5x/5=130⁰/5
x=26⁰
Answer:
x should equal 26.
Step-by-step explanation:
since they are cointerior angles:
2 (x + 15) + (3x + 20) = 180
2 (x) + 2 (15) + (3x + 20) = 180
2x + 30 + (3x + 20) = 180
2x + 30 + 3x + 20 = 180
5x + 50 = 180
5x + 50 - 50 = 180 - 50
5x = 130
5 ÷ 5x = 130 ÷ 5
x = 26
Pls help question on the photo
Answer:first answer choice (subtract 11 from both side)
Step-by-step explanation:
The $299.99 television that Chad purchased was on sale for 10% off. How
much did Chad pay?
Answer:
269.991 which is pretty much 270
Step-by-step explanation:
To solve this simply multiply 299.99 by .9 (90%)
which gets you 269.991
Pls show workings
Due asap
Answer:
Use Pythagorean Theorem to find the distance between the two points
[tex]x^{2} +y^{2} =r^{2}[/tex] where r is the distance between the two points
Δx = 6-4 = 2
Δy = 3-(-1) = 4
2²+4²=r²
4+16=r²
20=r²
√20=r
r=4.47
r=4.5
4.5÷2=2.25 (halfway)
∴The distance between the cafeteria and the bathrooms is 2.25 units
Hopefully you understand how I got this answer.
Answer:
(5,1)
Step-by-step explanation:
So for this one we just find the length between the x values and the length between the y values and divide by 2 to find how far it will be ( if that makes sense.)
the distance between the two x values is 2 and the distance between the two y values is 4
2/2 = 1 and 4/2 = 2
then we subtract 1 from the x value and 2 from the y value ( using the coordinates of the cafeteria btw.)
6-1=5 and 3-2 =1 so the coordinates of the bathroom is (5,1)
Mr. Reed is drawing a blueprint of a rectangular patio. The width of the patio is 40 3/4 feet shorter than twice its length. The perimeter of the patio 86 1/2 feet what is the length of the patio?
Answer:
Length of rectangular patio = 28 feet
Step-by-step explanation:
Given that:
Length of rectangular patio = x
Width of rectangular patio = [tex]2x-40\frac{3}{4}[/tex]
Perimeter of rectangular patio = [tex]86\frac{1}{2}[/tex]
Perimeter of rectangular patio = 2 (length + width )
Putting values in the formula
[tex]86\frac{1}{2}=2(x+2x-40\frac{3}{4})\\\\\frac{173}{2}=2(3x-\frac{163}{4})\\\\\frac{173}{2}=2(\frac{12x-163}{4})\\\\\frac{173}{2}=\frac{12x-163}{2}\\\\173 = 12x-163\\12x = 173 + 163 \\12x = 336[/tex]
Dividing both sides by 12
[tex]\frac{12x}{12}=\frac{336}{12}\\x=28[/tex]
Hence,
Length of rectangular patio = 28 feet
A shooting star forms a right triangle with the Earth and the Sun, as shown below: A right triangle is shown with the vertices labeled Earth, Sun, and Shooting Star. The angle formed by the Sun is labeled x deg A scientist measures the angle x and the distance y between the Earth and the shooting star. Which trig function would the scientist use to calculate the distance between the Earth and the Sun. (5 points) sin cos tan sin-1 cos-1 tan-1
Answer:
The answer is below
Step-by-step explanation:
A triangle is a polygon with three sides and three angles. There are different types of triangles such as scalene triangle, obtuse triangle, equilateral triangle and right angled triangle.
Trigonometric functions are functions used to show the relationship between an angle of a right-angled triangle and the ratio of two side lengths. Below are some trigonometric function:
sinθ = opposite/hypotenuse, cosθ = adjacent/hypotenuse, tanθ = opposite/adjacent.
Given the right angled triangle with angle x. and the hypotenuse y. We need to find the distance between the Earth and the shooting star.
d = distance between the Earth and the shooting star = adjacent side.
Therefore, the relationship between angle x, d and y can be gotten using the cos trig function.
cosθ = adjacent / hypotenuse
cos(x) = d / y
d = y * cos(x)
Rita traveled 1,250 miles in the first 3 days of her trip. At this rate, how long will it take her to travel 1,875 miles?
Answer:
4.5 hours
Step-by-step explanation:
1250 / 4 = 416 2/3
1875 / 416 2/3 = 4.5
URgent PLEASE LOOK AT THE PHOTO
Answer:
y < -3x + 6
llllllllllllllllllll
GIVING BRAINLEIST PLS HURRY
What property was used in step 1 to arrive at step 2?
Step 1: 5(x-7) = 55
Step 2: 5x-35 = 55
Step 3: 5x = 90
Step 4:
X = 18
Answer:
A
Step-by-step explanation:
4(x - 2) + 3 = 2x - 9
The value of x from the given equation is -2.
What is an equation?In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
The given equation is 4(x - 2) + 3 = 2x - 9.
The solution of an equation is the set of all values that, when substituted for unknowns, make an equation true.
4x-8+3=2x-9
4x-5=2x-9
4x-2x=-9+5
2x=-4
x=-2
Therefore, the value of x from the given equation is -2.
To learn more about an equation visit:
https://brainly.com/question/14686792.
#SPJ2
a) Solve 3(x - 5) = 18
Can somebody plz help answer this question correctly (only if u know how to do it) thanks lol :)
WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST :DD
Answer:
Multiple answers in Step-by-step explanation
Step-by-step explanation:
x+y = 10
1 + 9 = 10
2 + 8 = 10
3 + 7 = 10
4 + 6 =10
5 + 5 = 10
x - y = 2
4 - 2 = 2
8 - 6 = 2
10 - 8 = 2
12 - 10 = 2
22 - 20 = 2
A robot can complete 7 tasks in 3/10 hour. Each task takes the same amount of time.
a. How long does it take the robot to complete one task?
b. How many tasks can the robot complete in one hour?
Answer:
Step-by-step explanation:
3 hrs covert to mins =180minutes
180/7=25/26 mins thts for one task
B=Completes 2 tasks in an hour
Daniel works at a nearby electronics store. He makes a commission of 15% on everything he sells. If he sells a laptop for $450, a wireless speaker for $82, and a set of wireless headphones for $120, how much money does Daniel make in commission?
Answer:
$97.80
Step-by-step explanation:
Answer:
$97.70
Step-by-step explanation:
So to find percent
450/100= 4.5 ,4.5x15= 67.5
82/100=0.82 0.82x15= 12.2
120/100=1.2 1.2x15=18
So do 67.5+12.2+18= $97.70
PLEASE HELP ME GET THIS .
Answer:
2
Step-by-step explanation:
because the 8 feet used on a ladder on level at the ground from the side of a house.
someone help me with this it’s due tonight !
3) What is the third term of the recursive sequence: a(1) = 3
a(n) = 2 · a(n-1)
(A) 6 [B] 10 [C] 12 [D] 53
Answer:a
Step-by-step explanation:I too, the test
I took the test already trust me
Describe and correct the error in using properties of parallelograms.
Using the punnett square below, choose the probability that the recessive trait will be present in the offspring.
Answer:
50%
Step-by-step explanation:
At school the maximum number of students that can be in a classroom is 25. If there are 17 students signed up for the geometry class how many more can join the class?
What is the distance between 10 and 12?
Answer:
The distance between 10 and 12 is 2.
But remember, don't forget to put the unit behind 2.
Hope this helps ;)
Costco buys a TV for $2000 and marks it up 125%. What is their selling price?
Which number is closest in value to the slope of line /?
Answer:
What's the picture?
If you provide the picture of the graph I can help
6. Ms. Quinones is flipping a penny. She flips the
coin 15 times and gets head 8 of those times. Based
on this information, if Ms. Quinones flips the penny
60 times, how many heads could she be expected to
get?
A. 4
B. 8
C. 32
D. 28
Answer:
32
Step-by-step explanation:
Answer:
C. 32
Step-by-step explanation:
15 × 4 = 60
8 × 4 = 32
The amount of heads she expected to get is 32
Which point is the best approximation of the relative maximum of the
polynomial function graphed below?
30
25
20
15
10
5
4
2
10
5
-10
15
-20
25
-30
-50-
Answer:
D
Step-by-step explanation:
your maximum "point" of the polynomial is the highest point that the curve makes which in this case is around x=-3.6 and y=17
The point of maxima for the given function is (-3.6, 17).
What is a function?A function y = f(x) is a one to one relationship between two sets X and Y where the set X is called the domain and Y the range of function f(x) ans x ∈ X and y ∈ Y.
As per the graph of the function following conclusion are as below,
It has a maxima in second quadrant.
After the point of maxima, its value starts to decrease.
Then, it reaches it lowest value in fourth quadrant after which it increases again.
By examining the given options, the correct point of maxima can be found as (-3.6, 17).
Hence, the point of relative maxima for the graph can be evaluated as (-3.6, 17).
To know more about function click on,
https://brainly.com/question/21145944
#SPJ2
X/4=-2.5
Solve the equation for the value of the variable show all work please and thanks:):):):)
Answer:
x = -10
Step-by-step explanation:
x/4=-2.5
multiply both sides by 4
x/4*4=-2.5*4
-2.5 times 4 is -10
x = -10
what spreads and becomes very annoying
Answer:
itchiness, rash,corona virus, rumors
Step-by-step explanation:
Answer:
[tex]coronavirus[/tex]
please help i don’t understand this problem at all :(. Will mark brainliest and give tons of points.
Ted's Taxi Service has cars that can seat 6 people and vans that can seat 18 people. The taxi
service can transport a maximum of 180 people in its 20 units. How many cars are in Ted's Taxi
Service?
Answer:
There are 15 cars in Teds Taxi Service as well as 5 vans.
Step-by-step explanation:
Well 180 split in 2 is 90 and 90 so 90/18=5, and 90/6=15.
I Really Really hope this can help you:)
What is the difference between 30and 87
Answer: 57
Step-by-step explanation:
