A box of pencils costs 7 dollars and a box of pens costs RM12. Ali paid 1 1 1 dollars to buy 3x boxes of pencils and y boxes of pens while Haris paid 11 dollars to buy x boxes of pencils and 2y boxes of pens. Find the values of x and y.
If answer right and explanation can let me understand I will give you brainliest and thanks
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Answer:

{5 + [-5(2 - 4) : 2]}.4 = 40/ 1  = 40

Step-by-step explanation:

Subtract: 2 - 4 = -2

Multiple: -5 * the result of step No. 1 = -5 * (-2) = 10

Divide: the result of step No. 2 : 2 = 10 : 2 = 5

Add: 5 + the result of step No. 3 = 5 + 5 = 10

Multiple: the result of step No. 4 * 4 = 10 * 4 = 40

i hope this helps :)

Answer:

thirty-one. nine hundred three tenths

Step-by-step explanation:

no sé ni hablar English pero espero te ayude

Answer:

D. 13 x 9

Step-by-step explanation:

12 11/16 is closer to 13 than 12.

8 3/4 is closer to 9 than 8.

Hopefully this helps!

Brainliest please?

9514 1404 393

Answer:

  (x, y, z) = (-9, -1, 8)

Step-by-step explanation:

My calculator tells me the reduced row-echelon form of ...

  [tex]\left[\begin{array}{ccc|c}-3&-2&-3&5\\1&2&-1&-19\\-2&1&-2&1\end{array}\right][/tex]

is ...

  [tex]\left[\begin{array}{ccc|c}1&0&0&-9\\0&1&0&-1\\0&0&1&8\end{array}\right][/tex]

This means the solution is (x, y, z) = (-9, -1, 8).

_____

Additional comment

In case you haven't learned how to use your graphing calculator to solve matrix equations, you can solve this system easily as follows:

Subtract 2 times the first equation from 3 times the third equation. This eliminates the x and z terms and gives you the value of y. (y=-1)

Substitute that value into the first and second equations. This gives you two equations in the sum and difference of x and z. (You may need to divide the coefficients by the common factor.) Add these sum and difference equations to find one of the variables, then substitute to find the other.

9514 1404 393

Answer:

  D: 21

Step-by-step explanation:

The first term is (a1). The third term is (a1)r². The product of these terms is ...

  (a1)(a1)r² = ((a1)r)², the square of the second term.

The missing term is √(7·63) = √441 = 21.

_____

Additional comment

In consideration of the above, you can also see that the common ratio can be found from ...

  a3/a1 = ((a1)r²)/(a1) = r² = 63/7 = 9

Then the common ratio is r = √9 = 3, and the second term is 7·3 = 21.

Answer:

Step-by-step explanation:

You can find the perfect squares that are closest to this by listing the perfect squares and seeing which two this square would be between, which is the square root of 36 and the square root of 49:

[tex]\sqrt{36} < \sqrt{40} < \sqrt{49}[/tex]

Answer:

52.5 Km

Step-by-step explanation:

90:60*35=

1.5 * 35=

52.5 Km

Answer:

52.5 km/h

Step-by-step explanation:

convert in m/s

90km×1000m=90000m

1hr=3600sec

9000m÷3600sec÷35m/s

35m/s×60÷2100

35m/s×2100÷52500

52500m÷1000m=52.5km

Answer:

[tex] \frac{9 - 15}{2 - 0} = \frac{3 - 9}{4 - 2} = - \frac{6}{2} = - 3[/tex]

Answer:

27

Step-by-step explanation:

15+40+10+40+30=135.

135÷5 I.e the total average of the number.

135÷5=27

Answer:

27

Step-by-step explanation:

15+40+10+40+30=135

135/5

Because 5 is the number of numbers

=27

Answer:

Step-by-step explanation:

We actually don't need to know all of the restrictions.

We know that a vertical stretch factor of 4 means multiplying a square root function by [tex]4[/tex]. So, the answer will be in the form [tex]y=4\sqrt{x+c}+k[/tex], where c and k are real numbers.

Aha! Only one of these conditions satisfy the restrictions, so we have that [tex]\boxed{y=4\sqrt{x+3}+7}[/tex] has to be the answer.

Answer:

9.45 (Jill)

Step-by-step explanation:

2.7 x 3.5 = 9.45

Lisa put the decimal in the wrong spot.

Answer:

= -25x-19/10

Step-by-step explanation:

Answer:

100

Step-by-step explanation:

Answer:

Hey mate.....can't see the attached picture....please check again

Answer:

what table??

Step-by-step explanation:

Answer: C

Step-by-step explanation:

No matter how big the number you are dividing by you cannot go below 0.

(positive division)

so that rules out A & B.

(D) 10 - 100 = -90.

(C) 1 - 100 = -99.

C has the least value.

Answer:

10:A 11:D

Step-by-step explanation:

10)

g([tex](\sqrt{x+1}^2+3)/(\sqrt{x+1} )[/tex]

rewrite [tex]\sqrt{x+1}^2[/tex] as x +1

g [tex](\sqrt{x+1}^2)[/tex] = [tex]\frac{x+1+3}{\sqrt{x+1} }[/tex]

add 1+3

g[tex](\sqrt{x+1}^2)[/tex]=[tex]\frac{x+4}{\sqrt{x+1} }[/tex]

combine and symplify

[tex]g{\sqrt{x+1} } *\frac{{x+4 (\sqrt{x+1}) } }{{x+1} }[/tex]

reorder factors of the second side

[tex]g{\sqrt{x+1} } *\frac{{\sqrt{x+1} (x+4) } }{{x+1} }[/tex]

take out the root x+1

and you are left with A

11.

f(g(x))

substitue g into f

f([tex]f{\sqrt{x+3} } =\((\sqrt{x+3})^2 +9}[/tex]

rewrite sqrroot x+3 as x+3

[tex]f{\sqrt{x+3} } =\(x+3 +9}[/tex]

Now add 3+9

[tex]f{\sqrt{x+3} } =\(x+12}[/tex]

we get x+12

Now for domain

[tex]f{\sqrt{x+3} } =\((\sqrt{x+3})^2 +9}[/tex]

set the radicand root sqr x+3 >= 0 to find the expression defined

[tex]x+3\geq 0[/tex]

subtract 3 from both sides

[tex]x\geq 3[/tex]

turn it into interval notation

[-3,+∞)

Answer:

0,40789

Step-by-step explanation:

To pick 1 red marble (from 5 red) from all 20 marbles is 5/20 = 0.25

To pick 1 green marble (from 3 green) from 19 because we already took red marble is 3/19 = 0.15789

The probability of randomly choosing a green marble after you have chosen red is 3/68.

Given

A jar has 20 marbles: 3 green, 12 blue, 5 red.

In probability theory, an event is a set of outcomes of an experiment or a subset of the sample space.

The total number of marbles = 20

The number of green marbles= 3

The number of blue marbles = 12

The number of red marbles = 5

The probability of choosing a red marble = Number of red marbles / Total number of marbles

= 5/20

The probability of choosing a green marble is =  Number of green marbles / New total number of marbles

= 3/19

Therefore,

The probability of randomly choosing a green marble after you have chosen red is;

[tex]\rm=\dfrac{5}{20}\times \dfrac{3}{19}\\\\=\dfrac{1}{4}}\times \dfrac{3}{19}\\\\ = \dfrac{3}{68}[/tex]

Hence, the probability of randomly choosing a green marble after you have chosen red is 3/68.

To know more about probability click the link given below.

https://brainly.com/question/743546

Answer:

The slope of (1,-11) should be 3 and the slope of (-2,-4) should be 0

Step-by-step explanation:

Actually im unsure please dont use this I thought I knew!

Answer:

17%

Step-by-step explanation:

2/12 or the eggs are cracked. That means 1/6 of the eggs are cracked.

1/6 approximately equals 0.167

So, it is approximately 16.7%, or if you round it up, 17%.

Answer:

16.67 %

Step-by-step explanation:

two of a dozen is 2/12 simplified is 1/6 and 1/6 in a percentage is 16.67%

Answer:

-3/y+3 +1/-2y

x-2>3

9(-10-10y)

Step-by-step explanation:

Given-

5.1 km/hr

Relation bween mph and km :-

[tex]1 \: mph = 1.609 \: km[/tex]

So,

[tex] \frac{5.1 \: km}{1 \: h} \times \frac{1 \: km}{1.609} = 3.17 \: mph[/tex]

Therefore, the answer is 3.17 mph.

Answer:

la app es la mejor gracias

Step-by-step explanation:

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[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

The Above statement is incorrect, because if the positive number is equal to the numerical value of negative number then their sum will be zero, and If the numerical value of positive number is greater than that of negative number then the sum will be a positive number, so the probability is of both three, the sum can be positive, negative as well as zero.

Answer:

The above statement is false.

Explanation:

If the positive number is greater than the negative, then it will stay positive.

Answer:

t and the tree is the relationship of

A brick of himalayan salt measures 20 x 10 x 4 and weighs 1 kg and 600 gs. then the density will be; 0.002 kg/cubic unit.

Density is like rate. It tells you how much of a thing is available for each unit other thing which contains the first thing. Suppose that a finite amount of substance is there having its properties as:

mass of substance = m kg

density of substance = d kg/m³

volume of that substance = v m³

Then, they are related as:

d = m/v

Given that a brick of himalayan salt measures 20 x 10 x 4 and weighs 1 kg and 600 gs.

Density = Mass / Volume

Density = 1.6 kg / 20 x 10 x 4

= 0.002 kg/cubic unit.

Learn more about mass, volume and density relation here:

https://brainly.com/question/952755

#SPJ2

Answer:

After depositing rs. 1500 ratan got rs. 7500 in his bank account. When he withdrew 1/3 of 7500, he withdrew rs. 2500 from his bank account.. so left amount in bank is 7500-2500= 5000 rupees

Step-by-step explanation:

brainliest

answer →a murder most heinous and a narrator who fights his insanity

Answer:

A:-18

B:-20

C:18

Step-by-step explanation:

Answer:

pls mark as brainliest and follow

Answer:

y = - 3x - 1

Step-by-step explanation:

Slope = 3/-1 = -3 (rise/run)

y-intercept= -1

y = -3x - 1