Mathematics High School

of the pupils in Year 9 say their favourite colour is red. .
There are 80 pupils in Year 9.
How many students said red is their favourite colour?

Answers

Answer 1
Maybe 48 students said reds there favorite.

Related Questions

Which of the following illustrates quadratic inequalities? I. 4x2 − 3x + 1 ≤ 0 II. (x + 9)(x − 7) > 0 III. 2 + 9 = 0

Answers

Option II cuz x*x is x²

Help I will be marking brainliest!!!

A. 28.8
B. 36
C. 48
D. 38.4

Answers

Answer:

A

Step-by-step explanation:

TR=[tex]\sqrt{60^{2} -48^{2} }[/tex]

TR=36

36/60=AR/36

AR=21.6

TA=[tex]\sqrt{36^{2} -21.6^{2} }[/tex]

TA=28.8

Simplify: (p-q)^2 + 2pq

Answers

Answer:

(p-q)^2+2pq

= p^2-2pq+q^2+2pq

= p^2+q^2

Step-by-step explanation:

Please mark me the brainliest :-)

7n+15=34 i need help ASAP

Answers

Answer:

n= 19/7 I hope this helped!

Step-by-step explanation:

Answer:

2.714285714285714

Step-by-step explanation:

My number is the smallest 2 digit number that only has 2 factors

Answers

Answer:

11

Step-by-step explanation:

Consider 10's factors: 1, 2, 5, 10, this is more than 2.

11's factors: 1, 11 (!)

Answer:

I think11 js the smallest 2 digit number that only has 2 factors

The product of 0.031 and 1,000,000 is
-----------------
because the decimal point in 0.031 moves
-------------places to the right..

Answers

Answer:

31,000 and 6

Step-by-step explanation:

The product of 0.031 and 1,000,000 is 31,000, because the decimal point in 0.031 moves  6 places to the right.

Hope it helps :)

Please mark my answer as the brainliest

Answer:

0.00000003-6

Im doing a chalenge

Please like I need to win

If x > 0, which of the following is closest to the value of x that makes the equation below true? ( SHOW WORK )


2x^2 = 40


A. 3.2

B. 4.5

C.6.3

D.8.9

Answers

Answer:am working on this to study guide

Step-by-step explanation:

what is the answer for this

Answers

Answer:

∠B = 141

Step-by-step explanation:

n - > number of sides

n = 7

Sum of all interior angles = (n -2 ) * 180

                                         = 5 * 180 = 900

∠B + 148 + 90 + 142 +  130 + 129 + 120 = 900

∠B  + 759 = 900

∠B = 900 - 759 = 141

2 (X+3)
What is x ?

PLS HELP ASAP

Answers

Step-by-step explanation:

2(x＋3)

2x＋6

devide each in 2

2x/2 and 6/2

2 and 2 go out

X=3

Find the area of a circle with a diameter= 6.8cm

Answers

Answer: 36.32

Step-by-step explanation:

Area of circle is π(r^2)

r is d/2

= 3.14*((6.8/2)^2)

=36.32

Pippa owns a snack bar.
She uses
of a kilogram of spread each day.
Spread costs £3.20 for a 1 kilogram tub and £6.15 for a 2 kilogram tub.
Pippa buys enough spread to last for 14 days.
What is the lowest price Pippa can buy this spread for?

Answers

Answer:

£43.05 (I believe, refer to step-by-step explanation.)

Step-by-step explanation:

Let's compare both of these tubs if we were to buy either of them for 14 days.

Starting with the 1 kilogram tub we need to do the calculation:

£3.20 × 14 = £44.80

(Type 3.2×14 into your calculator or write on paper this way to calculate.)

Now let's do the 2 kilogram tub.

£6.15 × 7 = £43.05

(Type 6.15×7 into your calculator or write on paper this way to calculate.)

The reason why I have put 7 instead of 14 is because it is 2 kilograms. Since Pippa uses 1 kilogram per day, you only need to buy 7. 2 × 7 = 14

So comparing either of these prices, buying 7 2-kilogram tubs is much cheaper compared to the 14 1-kilogram tubs.

help with full calculations please and thank you

Answers

Answer:

x = 13

Step-by-step explanation:

1. We can tell if the radical is in its simplest form if the square root term is a number that cannot be broken down to give a perfect square factor

what we are saying in this case is that if the number that is under the square root sign is one in which cannot be broken down to give a perfect square or that a perfect square is not its factor. Then it is in the simplest form

2. 512 = 2^(x-4)

512 = 2^9

2^9 = 2^(x-4)

since base is equal, we equate the powers

9 = x - 4

x = 9 + 4

x = 13

One of the altitudes of the parallelogram shown is StartRoot 22.5 EndRoot units. What is the length of the other altitude?

5 units
6 units
30 units
StartRoot 40 EndRoot units

Answers

Answer:

the length of the other altitude of the given parallelogram will be 6 units and option B is the correct choice.

The length of the other altitude in the parallelogram will be B. 6 units.

How to calculate the altitude?

The equation to find the altitude in the parallelogram will be:

Altitude 1 × Vertical base = Altitude 2 × Horizontal base

✓22.5 × ✓40 = Altitude 2 × 5

30 = Altitude 2 × 5

Altitude 2 = 30/5

Altitude = 6

Learn more about parallelogram on:

https://brainly.com/question/970600

#SPJ2

Just need the answer

Answers

Answer:

x=3.9

Step-by-step explanation:

20x16 help I’m stuck

Answers

Answer:

320

Step-by-step explanation:

my work is on the picture pls give brainliest thanks

Find the measure of the indicated angle to the nearest degree?

Please hurry

Answers

Answer:

24 i think

Step-by-step explanation:

hope it helps (:

Plz Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

the x coordinate is 5

the y coordinate is 4

Step-by-step explanation:

the x coordinate would be wherever the dot is on the horizontal line

the y coordinate would be wherever the dot is on the vertical line

as shown on the graph, the point is located at numbers (5,4). We see here that on the x-axis, it is 5, making 5 the x coordinate. 4 will be the y-coordinate since it is on the y-axis. Here’s a tip.
the x-axis(line) goes horizontal and the y-axis goes vertical. Just look at what numbers the x and y axis give you on the point and you’ll find your answer.

4. Which of the following is a geometric sequence?

A. 19, 15, 21, 27,...

B. 4,9,16,25,...

C. 3,-9, 27,-81,...

D. 30,15,0, -15,...
I’ll give brainiest :)

Answers

Answer:

1, 3, 9, 27, 81, . . .

Step-by-step explanation:

Got it right on edg

please help me ! it’s due at 11:30

Answers

Answer:

what is the question

Step-by-step explanation:

A. Tomás collects sports cards. The number of baseball
cards he buys each week is proportional to the number
of football cards he buys.

B. Suppose Tomas buys a total of 30 seconds baseball and football cards in Week 5. How many of each would he have to buy to keep the same proportional relationship?

Week = 1 | 2 | 3 | 4
NOBC = 9 | 15 | ? | 6
NOFC = 6 | ? | 8 |

NOBC ( number of baseball cards)
NOFC ( Number Of football cards )

Answers

• 18 baseball cards
• 12 football cards
The only relationships shown in the table is in week 1, where the ratio of baseball to football cards is baseball : football = 9:6
:)

What is the slope of a line perpendicular to the line whose equation is x+2y=-16x+2y=−16. Fully reduce your answer.
​

Answers

Answer:

im learning the same thing right now :(

Step-by-step explanation:

Answer:

ycucyd?7tsr u spyf xxx it?ti 68f?

Step-by-step explanation:

itzdit d?iyyc7r 0 cuoc68f

find the area of circle
whose radius is rcm.​

Answers

Answer:

πr^2 Cm^2

Step-by-step explanation:

Using the formula we get our answer.

Find 62.7% of 177. Round to the nearest thousandth.

Answers

Answer:

110.979

Step-by-step explanation:

62.7% * 177 = 0.627 * 177 = 110.979

what is the slope intercept equation for the following line? 

(see image)

Answers

Answer:

y = x + 1

Step-by-step explanation:

You can immediately read off the y-intercept from the graph:  (0, 1).  The slope of this line is negative.  Choosing two different points on this line leads to finding the slope of the line:  (0, 1) and (2, -1)  Going from the first point to the other, we see that x (the run) increases by 2 and y(the rise) decreases by 2.  Thus, the slope is m = rise/run = 2/2 = 1.

The slope-intercept equation of this line is therefore y = x + 1.

Answer:

y=-1x+1

Step-by-step explanation:

To find the slope, we can use rise (vertical) over run (horizontal).

m=rise/run

We can see that from the first point to the second point,  x increased by 2 and y decreased by 2.

The rise is -2 and the run is 2.

m=2/-2=-1.

The slope is -1.

Now let's find the y-intercept (the point where x=0, or where the line crosses the y-axis.)

This point is at (0,1), so b=1.

The y-intercept is 1.

This is the format for slope-intercept form: y=mx+b.

The slope-intercept equation is y=-1x+1.

A salesperson earns a commission of $378 for selling $2100 in merchandise find the commission rate write your answer as a percentag

Answers

Answer:

18%

Step-by-step explanation:

Given data

commission = $378

sales =$2100

Hence the percentage is given as

= 378/2100*100

=0.18*100

= 18%

Hence the percentage commission is 18%

please help! easy math!
Select all of the equations that will produce exponential decay.


multiple answers can be chosen.

Answers

Answer:

y=(0.1)x and y=2(1/4)x represent exponential decay

the rest all are an equation used for exponential growth

A cable company uses the formula S = 20,000 (1 + 0.08)y to estimate the number

of subscribers, S, that use their service after y years. If there were 20,000 cable

television subscribers when the cable company began, what is the meaning of the

expression (1 + 0.08)Y?

A. Every year the number of subscribers is estimated to increase by 8 over the number

of subscribers the year before.

B. Every year the number of subscribers is estimated to increase by 8% of the original

20,000 subscribers

C. Every year the number of subscribers is estimated to increase by 8% over the

number of subscribers the year before.

D. Every year the number of subscribers is estimated to increase by 80% of the

original 20,000 subscribers.

I

Answers

Answer:

C. Every year the number of subscribers is estimated to increase by 8% over the

number of subscribers the year before.

Step-by-step explanation:

Using the formula :

S = 20,000 (1 + 0.08)^y to estimate ;

S = number of subscribers ; y = years

The expression : (1 + 0.08)^y

0.08 = 0.08 * 100% = 8%

(1 + 0.08)^y represents a continous growth or increase in the number of subcsribers by 8% over the number of subscribers the preceeding year

Find the LCD for the pair of fractions.
7 8
and
9 15

Answers

I dor. Know the answe i kdonr know the answe the answer is 15
For 7 and 8 the answer is 56
for 9 and 15 the answer is 45

Gawain sa Pagkatuto Bilang 1. Tukuyin ang sagoto quotient gamit
ang isip lamang. Gawin ito sa iyong sagutang papel.
Division Sentence
Paraang Ginamit (Method Used)
1.524
2.968
3.72 +3 -
4.85 +5=
5.63 - 7​

Answers

Answer:

jsjsjsjsjjsjsj

Step-by-step explanation:

gyygyhdvvvzhNshxyJcjdjx

Suppose () = 46%; ( and ) = 10%; and ( or ) = 62% Find (Not ). Can this really be a probability? If not, explain why not.

Answers

Answer:

[tex]P(E) = 26 \%[/tex]

Step-by-step explanation:

Given

[tex]P(F) = 46\%[/tex]

[tex]P(E\ and\ F) = 10\%[/tex]

[tex]P(E\ or\ F) = 62\%[/tex]

Required

Find P(E)

In probability:

[tex]P(E\ and\ F) = P(E) + P(F) - p(E\ or\ F)[/tex]

Substitute the right values

[tex]10\% = P(E) + 46\% - 62\%[/tex]

[tex]10\% = P(E) -16 \%[/tex]

Collect Like Terms

[tex]P(E) = 10\% +16 \%[/tex]

[tex]P(E) = 26 \%[/tex]

It is a probability because all probabilities are within the range 0 to 100%

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