Mathematics High School

2. In Ella's math class, there are 12 girls and 15 boys. Which of the following is the ratio of boys to girls in Ella's math class?
A 12/27
B 12/15
C15/12
D27/12​

Answers

Answer 1

Answer:

C. 15/12

Step-by-step explanation:

15 boys and 12 girls

Answer 2

Answer:

b

Step-by-step explanation:

12/15

Related Questions

solve the inequality 10p- 8≥ 12

Answers

10p -8 ≥12
10p ≥12+8
10p ≥20
p ≥20/10
p ≥2

+
Scale of drawing
1 in: 6 ft
Answer the following.
(a) The wingspan of the real airplane is 60 feet.What is the
wingspan of the airplane in the scale drawing?
360 inches
$
(b) In the scale drawing, the length of the airplane is 8 inches.
What is the length of the real airplane?
48 feet

Answers

Answer:

tell ur teacher am not sure about the question

50 points! Mhanifa please help! I keep asking and you dont answer lots of them. I will mark brainliest! Random answers will be reported

Answers

Answer:

Angle addition postulate

Q1m∠FDE + m∠CDE = m∠FDC2x + 5° + 10x - 3° = 62°12x = 60°x = 5°m∠FDE = 2*5° + 5° = 15°m∠CDE = 10*5° - 3° = 47°

Correct choice is D

Q2m∠BOC + m∠COD = m∠BOD26° + m∠COD = 46°m∠COD = 46° - 26°m∠COD = 20°Q3

Midpoint is equidistant from the endpoints

Given points:

M(-2, 7), A(5, 3), B(x, y)

Use midpoint formula:

(x + 5)/2 = -2 ⇒ x + 5 = -4 ⇒ x = -9(y + 3)/2 = 7 ⇒ y + 3 = 14 ⇒ y = 11

Point B is (-9, 11)

On Tuesday, the mailman delivers three checks for $5 and two bills for $2 each. If you had a starting balance of $25, what is the ending balance? If you find out the answer please explain

Answers

Answer:

6

Step-by-step explanation:

because 3 checks for 5 bucks 3x5=15  two bill for 2 dollars each 15+4=19

25-19=6

It would be 44 because 3 checks for $5 would be 15 and 2 bills for $2 would be 4 and 19+25=44 :)

help i dont get it pelase

Answers

Step-by-step explanation:

(-1,3)

just move the point over 5 lines and then up 4 lines. or

4-5 = -1

-1 +4=3

25 points pls help

which of the following rational functions is graphed below?

Answers

Step-by-step explanation:

The answer is C I gotchu .....

Answer:

C.

Step-by-step explanation:

(✿◡‿◡) <-- she wants Brainliest

Tell ur mom she did a good job makin such a cute girl ✪ ω ✪ バイバイ～。!

Mhanifa please help fast! This is due in 40 minutes! I will mark brainliest random answers will be reported

Answers

Answer:

Q1

Skew lines are two lines that do not intersect and are not parallel.

AB and HG are parallel, BC is intersecting lineBG is skew line with CD

Correct option is C. BG

Q2

Corresponding parts are congruent in congruent figures

∠H ≅ ∠F4x + 5 = 1054x = 100x = 25Q3

Parallel line have same slopes

Given line:

y = -3x + 7

The only line with same slope of -3 is the last one:

3x + y = 10 ⇒ y = -3x + 10

Correct option is D

The storage box for a flag is in the shape of a triangular prism. What is the surface area of the box?

Answers

*see attachment for the diagram of the triangular prism box

Answer:

528.8 in.²

Step-by-step explanation:

Surface area of triangular prism = 2(BA) + P*H

Area of triangular base (BA) = ½*b*h

b = 24.5 in.

h = 12 in.

BA = ½*24.5*12 = 147 in.²

Perimeter of triangular base = 24.5 + 17.1 + 17.1 = 58.7 in.

Height of prism = 4 in.

Plug in the values into the surface area formula:

Surface area of prism = 2(147) + 58.7*4

= 294 + 234.8

= 528.8 in.²

The class was given a test that had a total of 125 points possible. A student then earned an 84% on the test. What are the total points that this student earned, out of the possible 125 points?
Help me please!!

Answers

Answer:

Step-by-step explanation:

84/100 = x/125

x = 105 points

A designer jacket was purchased for $140. Since it was purchased, the price has decreased by 18%. What is the price now?

Answers

Answer:

114.8

Step-by-step explanation:

The answer is 114.8 because 18% of 140 is 25.2, then if you subtract that by 140 then you will end up with 114.8.


Find the exact value of x.

Answers

Answer:

The exact value of x will be [tex]\sqrt{52}[/tex] or 7.2111

Step-by-step explanation:

Hope this Helped

It would probably be 7.2111

It would be very nice if you could evaluate the expression for ya homie


-63/(-7)+6

Answers

Answer: =15

Step-by-step explanation: Hope this help :)

-63/-7+6

=63/7+6/1

=9/1+6/1

=9+6/1

=15

What is £1.30 increased by 20%

Answers

£1.56 because 20 % of £1.30 = 26 p so 26 + 130 = £1.56

Step-by-step explanation:

20 % of 1.30 is 1.30×20 / 100 = 0.26

1.30 increased by 20% is 1.30+0.26= 1.56

On a​ map, 1 inch equals 5 miles. Two cities are 6 inches apart on the map. What is the actual distance between the​ cities?

Answers

Answer:

30

Step-by-step explanation:

(5*6)/1

2y =x
Pls help, im taking a test, pls answer quick! Thx!

Answers

1/2
is the answer because Graph the line using the slope and y-intercept, or two points.

1
2
y-intercept:
(
0
,
0
)

Sharon travels a total of 80 miles to get to school each week. araushi travels 40%of the miles Sharon travels to get to school each week. how many miles does araushi travel to school each week ​

Answers

The answer is 32 miles

Which triangle is a translation of triangle X?
triangle A
triangle B
triangle C
triangle D

Answers

Answer:

triangle b

Step-by-step explanation:

triangle b has the same dimensions and corresponding angles. which means it is a rigid transformation which is what a translation is

Answer:

Triangle b

Step-by-step explanation:

Which object would most likely have a
mass of 2 kilograms?
A a car
B a strawberry
C an ant
D a watermelon

Answers

Answer:

I think it's a strawberry but I'm not sure. Because 2 kilograms are about 4 pounds and unless you get a small watermelon or a big bag of strawberries it depends. I'm sorry I wasn't much help

Angle B measures 60°. What is the measure of the angle that is complementary to angle B? 30° 60° 120° 180°

Answers

Answer:

30

Step-by-step explanation:

Complementary angle to B = 90 - 60 = 30

Answer:

A on edge

Step-by-step explanation:

Milo wants to roll epoxy on his garage floor. In order to do this he needs to know the area of his rectangular-shaped garage. The measurements are 20+ (radical) 3 feet by 20+ (radical) 3 feet.
What is the area of his garage floor?
(Remember, the formula for the area of a rectangle is A = lw.)
Please help. I've been stuck on this problem. :)

Answers

Answer:

its the first one

Step-by-step explanation:

Answer: it is A. just got it right

Step-by-step explanation:

SOS MSENVJBQJBVKJQBH I NEED HELP- math is way to hard i think im gonna drop out lols ​4(5 + 2x) – 5 = 3(3x + 7)

Answers

Answer: x= -6 I'm not sure about this though.

Step-by-step explanation:

Answer:

[tex]4(5 + 2x) - 5 = 3(3x + 7)[/tex]

[tex]20 + 8x - 5 = 9x + 21[/tex]

[tex]15 + 8x = 9x + 21[/tex]

[tex]9x + 21 = 15 + 8x[/tex]

[tex]9x - 8x = 15 - 21[/tex]

[tex]x = - 6[/tex]

what is the solution to the system of equations? please help im struggling really bad ):

Answers

Answer:

[tex] - 11 \frac{1}{2} [/tex]

Step-by-step explanation:

8x + 5y = 7

4x - 5y = 11

If you all it all up we have

8x + 4x +5y - 5y = 18

12x=18

x=18/12=1.5=3/2 = 1 whole number 1 over 2(1 1/2)

subtituting the value of x into equation 1(8x + 5y = 7)

8(1.5) + 5y = 7

5y=7-12

5y = -5

y=-5/5

y= -1

2. What is the product of -2x^3+c-5 and x^3-3x-4 Show your work

Answers

Answer:

Multiply across the parenthesis and combine like terms

Explanation:

(

x

−

2

)

×

(

3

x

−

4

)

=

x

×

(

3

x

−

4

)

−

2

(

3

x

−

4

)

x

×

(

3

x

−

4

)

−

2

(

3

x

−

4

)

=

3

x

2

−

4

x

−

6

x

+

8

3

x

2

−

4

x

−

6

x

+

8

=

3

x

2

−

10

x

+

8

Step-by-step explanation:

hope this helps

Write an expression to represent:
Nine more than the quotient of two and a number x

Answers

Answer:

9+(2/x)

Step-by-step explanation:

Which relation below is not a function?
A {(2,8)3,-10)(-1,190,-1)}
B {(-3,8}(4,-63-2,63-9,81)
C {(1,9)(5,-8)(-1,3/-2,4)}
D {(1,6)(8,-3)(-1,-6)(8,21}

Answers

I think the answer is c

Answer

D is not a function

Step-by-step explanation:

In the x-values, there is a repeating 8.

A 1,300 kg car moving at 20 m/s and a 900 kg car moving at 15 m/a in precisely opposite directions crash head on. If we consider this event to be a perfectly inelastic collision, what is the speed of the cars after the impact?

Answers

Answer:

17.96m/s

Step-by-step explanation:

Based on law of conservation of momentum;

m1u1 +m2u2 =(m1+m2)v

v is the velocities of the car after impact

Substitute the given values

1300(20)+900(15) = (1300+900)v

26000 + 13500 = 2200v

39500 = 2200v

v = 39500/2200

v = 17.96m/s

Hence the speed of the cars after impact is 17.96m/s

can somebody please help :)

Answers

Answer:

8+21x one

6+18x one

and the 4x-6 one have on solutions


please help

Graph the following inequalities

Answers

Answer:

1 is closed circle with arrow to the left on 4, 2 is open circle with arrow to the left on 4, I believe

Is 1.09 greater than 1.11 Or, Is 1.11 greater than 1.09?

Answers

Step-by-step explanation:

1.11 greater than 1.09

Hope it helps ☺️

Answer:

1.11 is greater than 1.09

hope it help.

mark me as brainlists pls

Mhanifa please help i will mark brainliest i need this done ASAP!

Answers

First one is the first answer with (x+2,y-8)
Second is <8 : 65

Answer:

(x, y) → (x - 2, y + 8)m∠8 = 65°

Step-by-step explanation:

Q1

The translation is the difference between two corresponding points:

-2 - 0 = 26 - (-2) = 8

Correct option is C

(x, y) → (x - 2, y + 8)Q2

∠8 and 115° are supplementary and sum to 180°

m∠8 = 180° - 115° = 65°

Other Questions
What is the transfer ofheat from one object toanother through directcontact? Hank's mother got tired of everyone's cell phones ringing during dinner, so she wrapped allof the cell phones in aluminum foil at dinnertime. Which of the following best explains howHank's mother solved her problem?Cell phone signals are electromagnetic waves, which are absorbed by the aluminum foilCell phone signals are electromagnetic waves, which are reflected by the aluminum foilCell phone signals are mechanical waves, which are absorbed by the aluminum foilO Cell phone signals are mechanical waves, which are reflected by the aluminum foil In February Liliana spent 35 hours watching Netflix. In march she only spent 18 hours watching. What was the percent decrease in the amount of time she spent watching? State if the two triangles are congruent. If they are, state how you know. (look at the picture) A trial balance consists of:Multiple ChoiceA two-column financial statement intended for distribution to interested parties outside the business.A two-column schedule showing the totals of all debits and of all credits made in journal entries.A two-column schedule listing names and balances of all ledger accounts.A two-column schedule of all debit and credit entries posted to ledger accounts. What is the largest sea in the world. The largest threat created by hurricanes usually comes from __________..A.storm surgesB.debrisC.windD.snow A body starts from rest andaccelerates uniform at 5 ms2.calculate the time takenby the body to cover adistance of1km 3. What is the value of -44.4-7?64A.B.164C.164D.-64 Arrange the events in their correct order to show the sequence of the extermination camps.The correct order:1. Chelmno opens in the part of Poland annexed to Germany2. Belzec, Sobibor, and Treblinka II open to exterminate all Jews in the General Government area3. Belzec ceases operations4. Sobibor and Treblinka II are shut down5. Soviets liberate Majdanek6. American forces liberate Dachau Examination practiceExam-style questions1 The quadratic equation x2 - 5x 3 = 0 has solutions a and b. Find the value of:i a - bii a + bLeave your answers in exact form. How many thirds are in 12? The diagram below shows a high-pressure and low-pressure system over islands in the Atlantic Ocean.Which of the following best predicts what the weather will be over Location X? A.cooler temperaturesB.increased humidityC.strong windsD.less clouds Find surface area of the prism.5 m18 m4 m Reggie is making a double layer cake the recipe for the first layer calls for 2 1/4 cups sugar. the recipe for the second layer calls for 1 1/4 cups of sugar. Reggie has 5 cups of sugar. How much will he have left after making both recipes? HELPP MEEE!7th gradeeeFind the circumference of the circle. Use 3.14 or 22/7 for TT. Round to the nearest tenth if necessary.Ill mark you brainliest! What will happen to the red blood cell in this environment?Group of answer choicesThe red blood cell will swell from absorbing salt molecules.The size of the red blood cell will remain constant.The red blood cell will swell at first and then shrink.The red blood cell will shrink from losing water molecules. What materials changed due to the light from the light bulb?(Multiple Choice)A. Plant B. Solar Panels C. GlassD. MelaninE. Foil F. Genetic Material Find the sum of the first six terms of the Geometric Progression (G.P.):21, 2, 4, .... In guinea pigs, the allele for short hair (S) is dominant over long hair (s). If two heterozygous short-haired guinea pigs mate, what percentage of their offspring will have long hair?