Mathematics College

2. What is the perimeter of a rectangle
which is 12 metres long and 9
metres wide?
(a) 21m
(b) 42m
(c) 54m
(d) 84m
(e) 108m
​

Answers

Answer 1

Answer:

(b) 42m

Step-by-step explanation:

Perimeter of a rectangle ⇒ P=2(l+w)

Which means P=2·(12+9)

Which equals 42

Related Questions

The graph shows a proportional relationship between a​ family's distance from home and the time they spent driving. What is the constant of​ proportionality? What does the point​ (1,49) represent?

Answers

Answer:

Step-by-step explanation:

Graph shows the proportional relationship between a family's distance from home and the time spent by them in driving.

Distance from home ∝ time

Distance from home = k(time)

Here 'k' = proportionality constant

For a point (1, 49) on the graph,

49 = k(1)

k = 49 miles per hour

And point (1, 49) will represent 49 miles in 1 hour.

Option (3) is the answer.

Suppose that you borrow $3000.00 from a friend and promise to pay back $4935.00 in 3 years. What simple interest rate will you pay? The simple interest rate is % (Round to the nearest tenth as needed.)​

Answers

Answer:

the simple interest rate is 18.00%

Step-by-step explanation:

The computation of the simple interest rate is shown below:

Amount = Principal × (1 + rate)^years

$4,935 = $3,000 × (1 + rate)^3

After solving it, the rate of percentage is 18.00%

Hence, the simple interest rate is 18.00%

If you buy a 64 ounce carton of juice for 3.69, how much is the unit price to the nearest 10th of a cent

Answers

Answer:

£ 0.058

Step-by-step explanation:

Hope it is helpful....

Help me with this pls

Answers

Answer:

x = 34

Step-by-step explanation:

4x + 10 + x = 180

5x + 10 = 180

      -10     -10

5x = 170

divide by 5

x = 34

_____________________

4(34) + 10

136 + 10

=146 and 34

9. Density measures
A. how much liquid is in an object.
C. how tightly packed an object's particles are.
B. the amount of space an object takes up.
D. the amount of matter contained in an
object.

Answers

Answer:

How tightly packed an object's particles are.

HELPPPPPPPPP PLEASEEEEEE
I WILLL MARK YOU BRILL

Answers

The third answer is the answer
it’s the third answer
s-10
taking 10 away from s is really just subtracting 10 from s.
:)

Only have to do 8 and 9. 10 if you can tho please!!!!!!!

Answers

Answer:

8. a2=b2+c2 i think

9.A4 measures 210 × 297 millimeters or 8.27 × 11.69 inches I THINK

10. im not sure

Step-by-step explanation:

Brad and Terrence are working on some math problems. Today, Terrence completed 15 math problems. This is 3 more than twice the number of problems that Brad completed. A)Write an equation that can used to find , b, the number of math problems that Brad completed.​

Answers

Answer:

2b + 3 = 15

b = 6

Step-by-step explanation:

If 3n + 7 = 25, then find the value of the expression 8n - 3]

In ∆ DEF and ∆ XYZ, DE = XY, angle E = angle Y and EF = YZ. Name the
test of congruency by which both the triangles are congruent.

Answers

Answer:

n=6,

SAS,

63

Step-by-step explanation:

3n+7=25

3n=25-7

3n=18

n=18/3

n=6

_______________________________

ΔDEF is congruent to ΔXYZ

DE=XY(side)

<E=<Y (angle)

EF=YZ (side)

by SAS congruence criteria ΔDEF=ΔXYZ

_________________________

(Linear pair)

180°-117°

=63

Answer=63

What is the slope of the line through (-10, 1) and (0, –4)?

Answers

Answer:

-0.5

Step-by-step explanation:

slope = (y2-y1)/(x2-x1)

         = (-4 - 1)/(0-(-10))

         = (-5)/10

         = -0.5

Answer:

It’s -1/2

Step-by-step explanation:

Did this on Khan Academy, here ya go :]

Answer ASAP ASAP needed now

Answers

Answer:

C

Step-by-step explanation:

tanθ =  opposite/adjacent       --->     θ = arctan(opposite/adjacent)

opposite = 51

adjacent = 68

θ = arctan(51/68)

What value of x makes the equation below true? 6x − 7 = 26
A.5
B.5.5
C.6
D.6.5

Answers

Answer:

B

Step-by-step explanation:

6x-7=26

6x=33

x=5.5

Answer:

B

Step-by-step explanation:

I need more letters ssssjsjsks

we are working on solving system of equations by substitution. can you please explain how to get the answer for
5x+y=2
x+y=10​

Answers

Answer:

try symbolab calculator it will give you a step by step explanation

Answer:

x= -2

y= 12

Step-by-step explanation:

5x + y = 2..................eqn 1

x + y = 10 ..................eqn 2

from eqn 1

5x + y = 2, u substitute by making 'y' the subject

y = 2 - 5x .................eqn 3

put eqn 3 into eqn 2

x + y = 10

x + 2 - 5x = 10

x - 5x = 10 - 2

-4x = 8

x = 8 / -4

x = -2

put x = -2 into eqn 1

5x + y = 2

5(-2) + y = 2

-10 + y = 2

y = 2 + 10

y = 12

I make $1,850 every two weeks after the government taxes me. Before taxes it’s $2,500. Tell me what percentage that is please.

Answers

Answer:

it would be dependent on wherre you live in the country give backround

Simplify.
(-216) ^-1/4

Answers

Answer:14 or 0.25

Step-by-step explanation:

It’s basically already written there but decimal form is 0.25

Helpppp and belive you can fly :D

Answers

Answer:

and I can believe that I can touch the sky : >

Step-by-step explanation:

i can belive that I can touch the sky

Is landing on an odd number on a 6 sided dice impossible,unlikely,equally likely,likely, or certain?

Answers

I would say equally likely because a 6 dice roll for odd numbers are 1,3,5 and for the even numbers they are 2,4,6 so that is like a 50 50 chance that you can get a odd or even number. So EQUALLY LIKELY is the best answer!

Maria has a recipe for pumpkin bread. She uses 3 ½ cups of flour to make 2 loaves of pumpkin bread. Alex will follow the same recipe. He will make b loaves of pumpkin bread using f cups of flour. Write an equation that represents the relationship between b and f.

Answers

Answer:

b + 1.75f

Step-by-step explanation:

1.75 cups are used for every loaf of pumpkin bread.

Answer:

f(4/7)=b

Step-by-step explanation:

3+1/2=7/2

(7/2)x=2

x=4/7

the constant of the equation is 4/7

so take f and b and put f in place for 7/2 cups and b for 2 loaves of bread.

f(4/7)=b

Hope that helps :)


Here is the picture

Answers

Answer: It's the first option

Step-by-step explanation: positive 2x because it is going up 2, 1 to the right (rise/run) and +5 because it touches the y-axis at 5. -2x because it's going down 2, 1 right (rise, in this case negative/run) and -2 because it touches the y-axis at -2.

y = 2x - 9
Determine the slope and the y-intercept (entered as an ordered pair) of the equation above. Reduce all fractions to lowest terms.
Slope:
y-intercept:

Answers

Oh gosh lol was so sad and he said oh okie so cute ☺️ oh okie so

What is the value of x?​

Answers

Answer:

Option A = 6

Step-by-step explanation:

3x- 5 = x+ 7           ( as diagonals r equal in a recangle)

3x-x = 7+ 5

2x = 12

x = 12/ 2 = 6

I hope im  Right !!

Which is the graph of a logarithmic function

Answers

Second graph is a logarithmic function:))

Please help me ASAP please

Answers

Answer:

297 cm²

Step-by-step explanation:

11x11=121

4x1/2x11x8=176

121+176=297

Estimate 62% of 196.

Answers

Answer : 62% of 196 is 121.52

Please help me with this

Answers

Answer:

SAS

Step-by-step explanation:

be carful, don't exactly know if sas is right

I am pretty sure that it is ASA. This is because they connect at an angle, then it shows a congruent side, then it shows a congruent right angle

Please help and don’t scam for points

Answers

Answer:

I'm guessing the equation would be 5x=30 and x would = 6

Step-by-step explanation:

5x = 30

5       5

x  =   6

a cuántos gramos equivale y 250 gramos​

Answers

Answer:

Me puedes dar más información?...Pliss

Answer: Para esto nesesitamos mas informasion asi no te la podemos responder cariño.

Step-by-step explanation:

117
x
x + 3
Find the value of x.

Answers

Answer:

114 I believe........

..

Answer:

what?

Step-by-step explanation:

You are dealt a card from a standard 52 card deck , what is the probability of getting an ace

Answers

Answer:

0.1538

Step-by-step explanation:

Probability of being dealt with an ace of a 8 =

= Number of ace + number of an 8 in the deck / Total number of cards in the deck

= (4+4) / 52 = 8/52 = 0.1538

Therefore 0.1538 is the required probability here.

Answer:

[see below]

Step-by-step explanation:

There are four aces in a standard deck of cards.

[tex]\frac{aces}{cards}=\frac{4}{52}= 0.076923076923...[/tex]

0.076923076923... ≈ 0.077

0.077 = 7.7%

There is an approximate 7.7 percent chance that you will get an ace.

Hope this helps.

7.4 as a mixed fraction

Answers

7.4 in fix fraction will look like this:

[tex]7 \frac{2}{5} [/tex]

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