In a school, the number of boys is 9 more than thrice the
number of girls. If the total roll of class is 60. What is the
total roll of girls.​

Answers

Answer 1

[tex]\huge\underline{\overline{\mid{\bold{\red{ANSWER}}\mid}}}[/tex]

Let the number of girls = [tex] x [/tex]

Then, According to the question,

number of the boys = [tex] 9 + 3x [/tex]

Total students in class = 60, so

[tex]9 + 3x + x = 60 \\ = > 9 + 4x = 60 \\ = > 4x = 60 - 9 \\ = > 4x = 51 \\ = > x = 51 \div 4 \\ = > x = 12.75[/tex]

On rounding off

Then, number of girls = 13

Answer 2

Let the number of girls = x

Then, According to the question,

number of the boys = 9 + 3x9+3x

Total students in class = 60, so

\begin{gathered}9 + 3x + x = 60 \\ = > 9 + 4x = 60 \\ = > 4x = 60 - 9 \\ = > 4x = 51 \\ = > x = 51 \div 4 \\ = > x = 12.75\end{gathered}9+3x+x=60=>9+4x=60=>4x=60−9=>4x=51=>x=51÷4=>x=12.75

On rounding off

Then, number of girls = 13


Related Questions

Divide. Round your answer to the nearest whole number.
8,297.741 divided by 0.529=?

Answers

Answer:

8,297.741÷0.529=16876.63

to the nearest whole number it is 16877

Step-by-step explanation:

since 5-9 are rounded up

1x 4/7x2/5 helllllllllllllllllllllllllllllllllllllllp meeeeeeeeeeeeeeeeeeeeee

Answers

Answer: It’ll be 8/35

hi can anyone please answer this?

Answers

Answer:

7 hours

Step-by-step explanation:

As you can see it costs 22.75 dollars for 3 and a half hours, which means that 45.50 dollars will allow you to park for 7 hours.

7. Divide 45.50 (total spent) by 3.25 (per half hr) to get 14. This 14 is 14 half hours, so you need to divide by 2 in order to get 7 total hrs.

if you can, please help

Answers

Just plug in x in the equation and get y
I’ll help with the first one
When x= -1, y = 4
When x= 0, y = 6
When x= 1, y = 8
When x= 2, y = 10
When x = 3, y = 12

5- 1/2x = 5/8x+2
Pls I need this for classwork due at 11:59

Answers

Answer:x=2.667

math

it's the right answer mark me smart.

PLS HELP Write three equivalent ratios for the ratio 4:5.

Answers

Answer:

12:15

16:20

40:50

Answer:

Choose a number and multiply that number by 4 and 5, then choose another number and multiply by the 4 and 5, and do it one last time

Step-by-step explanation:

finish the number sequence
47, 40, 45, 38, 43, 36,41​

Answers

Answer:

46 please read the explanation it helps a lot and it's and easy one. Hope this helps! :)

Step-by-step explanation:

So at the beginning 47 is subtracted by 7 and then added by 5 and for the rest of the questions it's doing the same thing. So after 41 it's 46 because it adding 5

47, 40, 45, 38, 43, 36, 41, 34, 39, 32, 37, 30, 35, 28, 33, 26, 31, 24, 29, 22, 27, 20, 25, 18, 23, 16, 21, 14, 19, 12, 17, 10, 15, 8, 13, 6, 11, 4, 9, 2, 7, 0

you substract 7 and then add 5 and repeat !

20 POINTS N BRAINLIEST!!16.Alun has a part-time job working as a bus boy at a
local restaurant. He earns $34 a night plus 5% of
the tips.
a) Write an equation for Alun's total earnings,
E dollars, when the tips are t dollars.
b) What will Alun earn when the tips are $400?
Explain your strategy.
c) What were the nightly tips when Alun earned
$64? Explain your strategy.

Answers

Answer:

a)E=.05t +34

b)$54

c)$600

Step-by-step explanation:

a) he gets 5% of tips out of all tips people gave to the restaurant , 5% --> .05 (as a decimal) --> this is "t"

he earns an extra $34 a night of work. --> this is the constant

E= --> the total earned that night

E=.05t +34

b) simply plug in the total tip into the equation

E=.05(400) + 34

E=$54

--> he earned $54 that night

c) since we are given the total earned that night, we now plug in for y. in this case we plug "$64" for y

we find t, which is tip the restaurant was given

--> 64 = .05t +34

-34. -34

30= .05t ---> divide by .05 each side

t= $600

the restaurant was tiped 600 dollars and Alun was paid 64 dollars that night of work

hoped this helped:)

i don’t understand what i can do

Answers

Answer:

14.037

Step-by-step explanation:

[tex]3^{-3} +5+9\\[/tex]

0.037+5+9

14.037

pls answer seriouslyyy thank u

Answers

Answer:

See Explanation

Step-by-step explanation:

3.

XY is tangent at P and CP is radius

[tex] \therefore CP\perp XP\\(\because tangent\: is \: perpendicular \: to\: radius) \\\\

\therefore m\angle CPX = 90\degree \\[/tex]

4.

Radius of the circle = diameter /2 = 13/2 = 6.5.cm

5.

For BD to be be tangent to the circle with center C, BD should make right angle with radius CB.

[tex] AD^2 [/tex] should be equal to the sum of the squares BD and AB.

Let us work it out:

[tex] AD^2 = 7^2 = 49....(1)\\

AB^2 + BD^2 = 5^2 +5^2 \\

AB^2 + BD^2 = 25 + 25 \\

AB^2 + BD^2 = 50....(2) \\[/tex]

From equations (1) & (2), it is obvious that:

[tex] AD^2 \neq AB^2 + BD^2[/tex]

So, BD is not tangent to the[tex] \odot\: C. [/tex]

6.

Tangents drawn from an external point to a circle are congruent.

In circle with center C, BA and BD are tangents drawn from external point B.

Therefore,

BA = BD

x = 4

7.

In circle with center C, BA and BD are tangents drawn from external point B.

Therefore,

BD = BA (tangents drawn from external point to a circle)

x = 2

8.

In circle with center C, BA and BD are tangents drawn from external point B.

Therefore,

BA = BD (tangents drawn from external point to a circle)

2x = 10

x = 10/2

x = 5

hcf and lcm of 120 and 180, shown your work

Answers

The HCM and LCM of 120 and 180 are 360.

What is HCF and LCM?

The Highest Common Factor (HCF) of two or more given numbers is the largest number that divides each of the given numbers without leaving any remainder. The Least Common Multiple (LCM) of two or more numbers is the smallest of the common multiples of those numbers.

Given are two numbers as -

120 and 180

We can write 120 and 180 as -

120 = 2 x 2 x 2 x 3 x 5

180 = 2 x 2 x 3 x 3 x 5

HCF of 120 and 180 will be equal to = 2 x 2 x 3 x 5 = 60

Now, we can find LCM using the formula -

LCM(a, b) = (a x b)/HCF(a, b)

LCM(a, b) = (120 x 180)/60

LCM(a, b) = 2 x 180 = 360

Therefore, the HCM and LCM of 120 and 180 are 360.

To solve more questions on HCF and LCM, visit the link below-

https://brainly.com/question/20739723

#SPJ2

whats the unit rate of 5.76

Answers

Answer:

there is no unit rate but hers an example of an unit rate using 5.76 NOT THE ANSWER

Step-by-step explanation:

Example: 64 ounces of water in a bottle that costs $5.76. To find the unit rate per ounce, divide the amount it costs ($5.76) by the number of ounces (64). $5.76 ÷ 64 ounces = $0.09 per ounce

What is the slope of the line that passes through the points
(-10,-8) and (-8, -16)? Write your answer in simplest
form.

Answers

-4 because the formula is y2-y1/x2-x1 n u jus plug in the values for x n y.

In the diagram, .

Triangles P M N and Q S R are shown. The lengths of sides P N and R Q are congruent, the lengths of sides Q S and P M are congruent, and the lengths of sides M N and R S are congruent.

If QR = 20 in., RS = 7 in., and SQ = 24 in., what is PN?

3 in.
7 in.
20 in.
24 in.

Answers

Answer: PN= 20 in.

Step-by-step explanation:

Given: In triangles PMN and QSR :

Length of P N ≅ Length of RQ  (1)    [ '≅' → Sign of congruence]

Length of QS ≅ Length of PM

Length of MN ≅ Length of RS

By SSS congruence rule

ΔPMN ≅ ΔQSR

Since Length of QR =20 in. [Given]

From (1)

Length of PN= 20 in.  [Congruent means exactly equal]

Answer:

Its C brudda

Step-by-step explanation:

Ronaldo>Messi

Does anyone know how to solve this question? ​

Answers

Answer:

b

Step-by-step explanation:

To evaluate g(h(- 2)), evaluate h(- 2), then use the value obtained to evaluate g(x), that is

h(- 2) = x + 4 = - 2 + 4 = 2, then

g(2) = 5x = 5(2) = 10 → b

Please help!
Find the slope of the line on the graph.
Write your answer as a fraction or a whole
number, not a mixed number or decimal.
Enter the correct answer.

Answers

Answer:

3/4

Step-by-step explanation:

Find where the line intercepts perfectly and you will see you it goes up 3 and to the left 4 so the slope is 3/4

Write the equation in slope-intercept form 2x−8y=24

Answers

Answer:

y=1/4x - 3

Step-by-step explanation:

Answer:

[tex]y=\frac{1}{4}x-3[/tex]

Step-by-step explanation:

Pls help ill give the brainliest anwser a brainliest

Answers

Answer:

D

Step-by-step explanation:

9.5 times the sum means you'd have to the addition first but the equation should but the same as the words. Order of operations states to do the parenthesis first. Therefore, the answer is D (10+5/4)x9.5

Answer:

A.

Step-by-step explanation:

If it's 9.5 times the sum of 10 and 5/4, the answer is A.

Its not b because its called 10 plus 9.5 times 5/4.

Its not c because it is called 9.5 PLUS the sum of 10 and 5/4.

Its not d because its called 10 plus 9.5 times 5/4.

Therefore, the word version fits with answer a.

A figure has been shrunk from center O with a scale factor r = 0.25. What scale factor would enlarge the figure back to the original size?

r =

Answers

Answer:

.75

Step-by-step explanation:

The area of a rectangle is equal to its perimeter. The base of the rectangle is 10 cm. The height of the rectangle is x cm. What is the value of x in this situation?
x=

Answers

Answer:

10x

Step-by-step explanation:

a=p

base=10

height=x

area=10 times x

perimeter=10+10+x+x

to work out area you times the base (10) by the height however since the height is x in this instant the answer is 10 times x which simplifies to 10x

9x + 4y = 9
x - intercept = ?​

Answers

Answer:

The x intercept is at (1,0)

The x intercept is 1

9x = 9

9x/9

9/9 = 1

The volume of a fish tank is 40 cubic feet. If the density is 0.4, how many fish are in the tank?

Answers

Answer:

16 fish

Step-by-step explanation:

What is the y intercept for y=−3x+7

Answers

Answer:(0, 7)

Step-by-step explanation:Use the slope-intercept form to find the slope and y-intercept.

-3\10d= -4\5 this is just so i can get answer ggggggggggggggggggg

Answers

Answer:

d = 8/3

Step-by-step explanation:

Miguel earns $70 washing 7 cars. At this rate, how many cars did Miguel wash to earn $110?​

Answers

Answer:

11 cars

Step-by-step explanation:

If he earned 70 cars 7 that means he earned 10 dollars per car. So in order to make 110 dollars he must wash 11 cars.

Answer:

11 cars

Step-by-step explanation:

$70total/7 cars= $10 per car

$110 total/$10 per car= 11 cars

Ashley simplified the following expression with the given steps 2(x+4)-(2x-8) 2x+4-2x-8 2x-2x+4-8 0-4 -4 Explain to her what her error was and how to correct it

Answers

First step, her distributive property was wrong. 2(x + 4) should be 2x + 8.
Since she made a mistake on the first step, all her equation messed up.
2x + 8 - 2x - 8
The correct answer would be 0

What is the unit rate? 400 m travelled in 50 seconds

Answers

Answer:

8 meters per second or 8/1

Step-by-step explanation:

Divide 400 meters by 50

8

So it is 8 meters per second

Hope this helps :)

Please consider Brainliest :)

Answer:

8 meters per 1 second

Step-by-step explanation:

first, do 400m/50sec

then, do 400m/1 divided by 50sec/1

next, do keep change flip so, 400/1 * 1/50=400/50

last simplify so, 400 divided by 50 and 50 divided by 50 equals 8/1

hope this helps  

if triangle ABC and DEF are congruent, what is the measure of angle E?

Answers

Answer: 83

Step-by-step explanation: Because the triangles are congruent, angle A is congruent to angle D, angle C is congruent to angle F, and angle E is congruent to angle B (CPCTC). Now because angle A and D are congruent they are both equal to 50. Using sum of angles in a triangle, you can find that measure of angle E is equal to 180- (47+50). That is 180-97=83.

Answer:

∠ E = 83°

Step-by-step explanation:

Since the triangles are congruent then corresponding angles are congruent.

Thus ∠ C = ∠ F = 47° and

∠ B = 180° - (50 + 47)° ← angle sum of Δ

∠ B = 180° - 97° = 83°

∠ B and ∠ E are corresponding angles, thus

∠ E = ∠ B = 83°

Graph f(x) = 3x and g(x) = 3x - 5.
Which describes the transformation from
the graph of f(x) to the graph of g(x)?

Answers

Answer:A translation down 5 units

Step-by-step explanation:

find in liters the volume of storage tank whose length breadth and depth are 6m 4.3m and 3.5m​

Answers

Answer: Area of tank = lbh

                                    = 6 x 4.3 x 3.5

                                    = 90.3 m^3

1 liter = 1000cm^3

90.3m^3 = 90300 cm^3

90.3l

Hope it helped u,

pls mark this as brainliest

and put thanks

^_^

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