Answer:
7
Step-by-step explanation:
The ratio of boys to girls in a gym class is 5:3. There are 27 girls in the class. How many boys are in the class?
Answer:
There are 45 boys in the gym class.
Step-by-step explanation:
Set up an equation:
Variable x = number of boys in the class
5/3 = x/27
Cross multiply:
5 × 27 = 3 × x
135 = 3x
Divide both sides by 3
45 = x
Check your work:
5/3 = 45/27
5 × 27 = 3 × 45
135 = 135
Correct!
what is f(-1) for the function given?
f(x)=x^2-3x+8
Answer: 12
Work is provided in the image I attached
Is the relationship linear,exponential, or neither ?
ANSWER:
B
Step-by-step explanation:
"Woohoo! The school carnival is here! You think about all the fun carnival games that you love to play every year. Then you remember that some of the probability concepts you learned about in math class could help you here. Time to play!"
Answer:
14
Step-by-step explanation:
So you go to the store one day with 50$ to spend. You wanna buy some apples and some pears. The apples are 5$ per pack (3 in each pack) and the pears are 3$ each pack (4 in each pack.) you end up buying 5 packs each fruit. How much money do you have left over?
Answer:
10$
Step-by-step explanation:
Answer:
$10
Step-by-step explanation:
Honestly, who eats that much fruit? but okay, we'll start with finding how much money she spent, and apples will go first:
So this is basically dealing with rates, so you just gotta multiply:
5 x 5 = 25
So you spent an unnecessary $25 on apples, now let's go to pears:
3 x 5 = 15
So you spent $15 on pears, now we combine those two:
25 + 15 = 40
So you spent $40 on fruit
So now we want to know how much money we have left, so we're gonna subtract:
50 - 40 = 10
So you have $10 left over
hope this helps:)
What is the diameter of the circle
Answer:
8.4 is the answer and the circumference is 26.4
Ill give brainliest - please help ASAP
WITH THE WORK THO PLEASE?
Answer:
Solution given:
5.
we have.
11x=½(16x+16+50)
22x=16x+66
22x-16x=66
6x=66
x=66/6
x=11
6.
118°=½(6x-11+181)
236=6x+170
6x=236-170
x=66/6
x=11°
Find the perimeter of the figure to the nearest hundredth.
Answer: 90.75 mm
Step-by-step explanation:
Given
The radius of the hemisphere is 16 mm
length of the inclined sides are 20 mm
The perimeter of the figure is the sum of the length of two inclined sides and a semi-circle circumference
[tex]\Rightarrow \text{Perimeter P=}\dfrac{2\pi r}{2}+2\times 20\\\\\Rightarrow P=\pi \times 16+40\\\Rightarrow P=50.75+40\\\Rightarrow P=90.75\ mm[/tex]
Ram is 20 years older than Sam. In 5 years, Ram will be twice old as Sam .Find their present ages.
Answer:
Sam is 15 years old and Ram is 35.
in five years Sam will be 20 and Ram will be 40, which is twice as old in age.
The volume of a rectangular prism is 48 cubic centimeters. The volume of a similar rectangular prism is 6 cubic centimeters.
What is the scale factor for the rectangle?
a. 8
c. 4
b. 6
d. 2
What is the measure, in degrees, of angle x?
Answer:
121°
Step-by-step explanation:
they're basically the same
Answer:
121°
Step-by-step explanation:
Theorem of vertical angles state that the opposite angles formed by two intersecting lines are congruent.
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
what is the volume of the cube shown?
Answer:
11 25/64
Step-by-step explanation:
you do 2 1/4 times itself 3 times.
What is the sum of all interior angles of a regular hexagon? A. 120° B. 360° C. 540° D. 720°
Helpppppppppppppppppp
Pppppo
Answer:
(2 * L)+(2 * W)
Step-by-step explanation:
GIVING BRAINLIEST -23 points-
URGENT HELP ME PLEASE!!!
Answer:
See a sides are equal so your answer is 8.2 in.
Find the area of a circle having a circumference of 34pi Round to the nearest tenth. Use 3.14 for pi.
Answer:
the answer is 76.5
Step-by-step explanation:
Area formula= A= π r^2
Circumference formula= 2 π r
Which equation describes the relationship shown in the table?
Items Sold
A- p=2i
B- i=2p
C- p=i+5
D- i=p+5
Answer:
A
Step-by-step explanation:
i = items sold
p = profit
Based on the table, the profit is twice the number of items sold. Therefore the answer is A. Correct me if I'm wrong. I hope it helps.
|Calculate the midpoint (-5,5), K(-3,-2)
Answer:
(-4,1.5)
Step-by-step explanation:
Given :-
Two points (-5,5) and (-3,-2)And we need to find out the midpoint of the two points. The midpoint of two points is given by the ,
[tex]:\implies[/tex] Midpoint =( x1+x2/2 , y1+y2/2)
[tex]:\implies[/tex] Midpoint =( -5-3/2 , 5-2/2)
[tex]:\implies[/tex] Midpoint =(-8/2,3/2)
[tex]:\implies[/tex] Midpoint = (-4 , 1.5)
Hence the midpoint of the two points is (-4,1.5) .Here we would be using the midpoint formula to find the co-ordinates of the line segment joining the two given points.
Given points,
(-5,5) and (-3,-2)
★ Midpoint of two points:-
[tex]\boxed{ \sf{M \: = \: \dfrac{x_1 \: + \: x_2 }{2} \: , \: \dfrac{y_1 \: + \: y_2 }{2}}} \: \pink\bigstar[/tex]
★ We have :
x1 = -5 y1 = 5 x2= -3 y2 = -2★ Putting the values :
Refer the attachment.Additional Information :★ Centroid of a triangle :-
[tex]\boxed{ \sf{Centroid \: = \: \dfrac{x_1 \: + \: x_2 \: + \: x_3}{3} }} \: \pink\bigstar[/tex]★ Distance Formula :-
[tex]\huge \large \boxed{\sf{{d \: = \: \sqrt{(x _{2} - x _{1}) {}^{2} \: + \: (y _{2} - y _{1}) {}^{2} }}}} \: \red\bigstar[/tex]who is correct
please answer ASAP!!! pls (:
Answer:Dwight is correct
Step-by-step explanation:
Preform the indecated operation 1/3x6/7
Answer:
0.257
Step-by-step explanation:
What is the diameter of a cone with height 8 m and volume 150 pi m3 ?
A. 7.5 m
B. 5V3 m
o C. 7.573 m
D. 15 m
Answer:
V = pi*r^2*h
V = 150 m^3
h = 8 m
150 = pi*r^2*8
Solve for r (the radius) then multiply by 2 to obtain the diameter.Only, this is a cone, not a cylinder.
V = 1/3 pi r^2 h
Diameter of the cone is 15 m. So, option D is correct.
What is meant by solid shape ?Solid shapes are defined as the three-dimensional objects that are described by the three dimensions length, breadth and height.
Here,
Volume of the cone is given by,
V = 150[tex]\pi[/tex] m³
Height of the cone, h = 8 m
We know, the equation for the volume of a cone is,
V = 1/3[tex]\pi[/tex]r²h
where r is the radius and h is the height of the cone.
So,
(1/3) [tex]\pi[/tex]r²h = 150[tex]\pi[/tex]
r²x 8 = 3 x 150 = 450
r² = 450/8
r² = 56.25
r = 7.5 m
Therefore, diameter of the cone,
d = 2r
d = 2 x 7.5
d = 15 m
Hence,
Diameter of the cone is 15 m.
To learn more about solid shapes, click:
https://brainly.com/question/22731242
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A holiday park is digging a swimming pool.
The volume of earth to be removed is 120m^3.
A mechanical digger can remove 0.15m^3 of earth with each scoop.
a) How many scoops will be needed to remove all the earth?
Please it’s urgent!
What is the value of the expression 6 3/4 ( - 11.5) ? Explain why your answer is positive or negative.
Answer:
-77.625
Step-by-step explanation:
Covert 6 3/4 Mix it with decimal Which is 6.75,
then calculate Times this 6.75 by (-11.5). and we will get
- 77.625 ( Answer)
What is the area of this triangle? I need help!! pleaseee
Answer:72
Step-by-step explanation: 9x8 =72
Solve for k.
8k = 24
k=
Answer:
K would equal 3
Step-by-step explanation:
8 x 3 = 24
Hope this helps :)
Answer:
k = 3
Step-by-step explanation:
Given:
8k = 24
Divide both sides by 8
8k / 8 = 24 / 8
k = 3
Check:
8k = 24
8(3) = 24
24 = 24
please help!!
GE = ___ degrees
Answer:
90°
Step-by-step explanation:
NE=90° and NG=180° (<'s on a str. line)
NG=NE+GE
180°=90°-GE
GE=180°-90°
GE=90°
Two trains start from Fort Worth traveling at the same speed. The trip for Train W takes 20 hours, while the trip for Train Z takes 25 hours. If the city Train Z is traveling to is 400 miles farther away than the city Train W is traveling to, how far will Train Z travel in total to reach its destination?
Answer:
= x/20=x+400/25
Distance traveled by Train W = 1600 miles
Distance traveled by Train Z = 2,000 miles
Step-by-step explanation:
Time taken for Train W to complete a trip = 20 hours
Time taken for Train Z to complete a trip = 25 hours
The city Train Z is traveling to is 400 miles farther away than the city Train W is traveling to.
both trains have same speeds and start from same location.
To find the distance in total each train travels.
Solution:
Let length of the trip of Train W be = xx miles
Speed of Train W can be given as :
⇒ \frac{Distance}{Time}
Time
Distance
⇒ \frac{x}{20}\ miles/h
20
x
miles/h
So, the length of the trip of Train Z will be = (x+400)(x+400) miles
Speed of Train Z can be given as :
⇒ \frac{Distance}{Time}
Time
Distance
⇒ \frac{x+400}{25}\ miles/h
25
x+400
miles/h
Since the speeds are same, so the equation to find xx can be given as:
⇒ \frac{x}{20}=\frac{x+400}{25}
20
x
=
25
x+400
Solving for xx
Multiplying both sides by 100 to remove fractions.
⇒ 100\times \frac{x}{20}=100\times \frac{x+400}{25}100×
20
x
=100×
25
x+400
⇒ 5x=4(x+400)5x=4(x+400)
Using distribution.
⇒ 5x=4x+16005x=4x+1600
Subtracting both sides by 4x4x
⇒ 5x-4x=4x-4x+16005x−4x=4x−4x+1600
⇒ x=1600x=1600
Thus, Distance traveled by Train W = 1600 miles
Distance traveled by Train Z = 1600+4001600+400 = 2,000 miles
A plate has a diameter of 4 inches . What is the area of the plate ?
Answer:
12.56 inches^2
Step-by-step explanation:
To solve this we use pi*r^2
Radius is diameter/2
so the equation is pi*2^2
pi*4
12.56 inches^2
Answer:
A≈12.57in²
Step-by-step explanation:
Using the formulas
A=πr2
d=2r
Solving forA
A=1/ 4πd^2=1/ 4·π·4^2≈12.56637in²
A≈12.57in²
imagine paying attention in class
El valor numérico de la expresión 〖P(y)=y〗^2-7y+10 para y=2 es: a. P(2)=9 b. P(2)=0 c. P(2)=-2 d. P(2)=-5
Answer:
Opción b, P(2) = 0
Step-by-step explanation:
Tenemos la expresión:
P(y) = y^2 - 7*y + 10
Para encontrar el valor P(2), simplemente debemos remplazar todas las "y" en la expresión de arriba por el valor 2, asi obtenemos:
P(2) = 2^2 - 7*2 + 10 = 4 - 14 + 10 = (4 - 14) + 10 = -10 + 10 = 0
P(2) = 0
La opción correcta es b.