Solve for z.
2
39z+ 17z = 0

Answer:

A=LxW

Step-by-step explanation:

Answer:

El perímetro de un triángulo es igual a la suma de sus tres lados.

b   x h

 2

Answer:

280 students

111 non students

Step-by-step explanation:

number of students (S)

number of non students (N)

S+N=391     S=391-N

4S+6N=1786

substitute S

4(391-N)+6N=1786

1564-4N+6N=1786

subtract 1564 from each side

2N=222

N=111

S=391-111=280

[tex]52 \times 0.15 = 7.8[/tex]

[tex]52 - 7.8 = 44.20[/tex]

The sale price of the shoes is $44.20

Answer:

52*15/100=7.8$ so u will take away 7.8$ from 52$=44.2$ he has to pay.

Answer:

y = -15x - 2

Step-by-step explanation:

Please let me know if you want me to write an explanation for my answer :)

Answer:

[tex](-2x-4)[/tex]

Step-by-step explanation:]

Given data

we are given that the expression is

the first expression is[tex](3x + 7)[/tex]

the second expression is[tex](2x +4)[/tex]

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

When we open bracket the second expression becomes

[tex](-2x-4)[/tex]

Answer:

kmjuhygtfcv nm,kljihuygbv njmihuygb

Step-by-step explanation:

The height of the office building is 65 meter.

If the corresponding elements of two sequences of numbers, frequently experimental data, have a constant ratio, known as the coefficient of proportionality or proportionality constant, then the two sequences of numbers are proportional or directly proportional.

If equivalent elements in two sequences have a constant product, also known as the coefficient of proportionality, then the two sequences are inversely proportional.

The shadow  of a 25 m tall flagpole casts is = 10 m.

Let  the height of the office  building = x m.

The  shadow  of a x m tall office  building is = 26 m.

From theory of directly  proportionality:

25 : 10 = x : 26

25/10 = x/26

x = (25/10)×26 = 65

Hence,  the height of the office building is 65 meter.

Learn more about proportionality  here:

https://brainly.com/question/29126727

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Step-by-step explanation:

y = .10d + .25q

y is the total amount, if you have d dimes and q quarters

It seems to me, that if you were to add the price of all three items together, then multiply by 7.5%, you'd have the answer.  Remember that 7.5% = .075 ... in other words, that is the number you would multiply the sum of the items by.  Does that help?

Answer:

first of all learn how to spell liters

1725

Step-by-step explanation:

15 liters of pain will cost Rs.225

Multiplication is a process of adding a number repetitively. Mathematically, we can write -

m = a x b

Given is that the 5 liters of paint costs Rs. 75.

5 liters of paint costs Rs. 75.

1 liter of paint will cost Rs. (75/5)

15 liters of pain will cost Rs. (75/5 x 15) = 75 x 3 = Rs. 225

Therefore, 15 liters of pain will cost Rs.225

To solve more questions on cost estimation, visit the link below

https://brainly.com/question/30521727

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Answer:

[tex] PQ=4\sqrt{2} \:cm=5.66 \: cm[/tex]

Area of square PQRS[tex] = 32\: cm^2 [/tex]

Step-by-step explanation:

ABCD is a square. Points P, Q, R and S are the midpoints of sides AB, BC, CD and DA of square ABCD respectively.

Therefore,

BP = 1/2 * AB = 1/2 *8 = 4 cm

BQ = 1/2 * BC = 1/2 *8 = 4 cm

In [tex] \triangle PBQ, \: m\angle PBQ =90\degree [/tex]

Therefore, by Pythagoras theorem:

[tex] PQ=\sqrt{4^2 +4^2} [/tex]

[tex] PQ=\sqrt{2*4^2} [/tex]

[tex] PQ=4\sqrt{2} \:cm=5.66 \: cm[/tex]

Area of square PQRS[tex] =PQ^2 [/tex]

Area of square PQRS[tex] =(4\sqrt{2}) ^2 [/tex]

Area of square PQRS[tex] = 32\: cm^2 [/tex]

Answer:

1/5x^12 * y^8.

Step-by-step explanation:

((5x^8*y^7/25)x^4)(y)

=1/5x^12 * y^8.

Answer: true

Step-by-step explanation:

Answer:

∠ UVX = 126.8°

Step-by-step explanation:

∠ WVS and ∠ UVX are vertical angles and congruent, then

∠ UVX = 126.8°

Answer:

x=2.192785

Step-by-step explanation:

52x−1=12x

log(52x−1)=log(12x)

(2x−1)*(log(5))=x*(log(12))

2x−1=(

log(12)

log(5)

)*(x)

2x−1=1.543959*x

2x−1=1.543959x

2x−1−1.543959x=1.543959x−1.543959x 1.543959x

0.456041x−1=0

0.456041x−1+1=0+1

0.456041x=1

0.456041x

0.456041

=

1

0.456041

0.456041)

x=2.192785

Answer:

x = 2.19

Step-by-step explanation:

Given that,

An equation, [tex]5^{2x-1} =12^{x}[/tex]

To find,

The value of x.

Solution,

We have,

[tex]5^{2x-1} =12^{x}[/tex]

Taking log both sides,

[tex]\text{log}(5^{2x-1})=\text{log}(12^x)[/tex]

We know that,

[tex]\text{log}\ a^n=n\ \text{log}a[/tex]

So,

[tex](2x-1)\text{log}5=x\ \text{log}12[/tex]

So,

[tex](2x-1)0.6989=1.0791x\\\\1.3978x-0.6989=1.0791x\\\\1.3978x-1.0791x=0.6989\\\\0.3187x=0.6989\\\\x=\dfrac{0.6989}{0.3187}\\\\x=2.19[/tex]

So, the value of x is equal to [tex]2.19[/tex].

Reference,

https://brainly.com/question/14968632

Answer:

yes

Step-by-step explanation:

If x = 5,

4x=4*5=20

15+x=15+5=20

They're both the same.

Yes

Step-by-step explanation:

x = 5

4(5) = 15 + (5)

20 = 20

Answer:

$0.9 per pound

Step-by-step explanation:

$2.25 divided by 2.5

Answer:

$0.9 per pound

Step-by-step explanation:

$2.25 divided by 2.5

divide the cost of the item by its weight in pounds

Answer:

16

Step-by-step explanation:

160 * 10% = 16

160 * 0.1 = 16

Answer:

It should be 136

Step-by-step explanation: I split it up into multiple pieces

Rectangle 1= 20*2=40

Rectangle 2= 14*4=56

Rectangle 3= 20*2=40

40+40+56=136

Answer:

i think that it's A.

Step-by-step explanation:

Metric units are the standard units of measurement while customary units are derived from the metric units. To convert between both units, you need a mix between multiplication and division.

Take distance as an instance.

The metric unit of distance is meters.

The customary units are: feet, inches, yards, miles, etc.

To convert from meters to feet, we multiply by 3.281

For instance:

[tex]2\ meters = 2 \times 3.281\ feet[/tex]

[tex]2\ meters = 6.562\ feet[/tex]

To convert from feet to meter, we divide by 3.281.

For instance:

[tex]6.562\ feet = \frac{6.562}{3.281}\ meters[/tex]

[tex]6.562\ feet = 2\ meters[/tex]

Hence, option (d) is true

Read more about metric and customary units at:

https://brainly.com/question/346695

Answer:

300π

Step-by-step explanation:

The only difference in the formulas to find volume of each is that the volume of a cone is 1/3πr² and the volume of a cylinder is just πr²

Answer:

So we have this equation:

10/27 =  a/135

What we can do is multiply  both sides by 27 and 135:

10*135 = a * 27

1350 = 27a

a = 1350/27. = 50.

Answer:

The answer is A and C

Step-by-step explanation:

The answer is A because 12.3 multiplied by 10 is 123, and 0.4 multiplied by 10 is 4.

12.3 * 10 = 123

0.4 * 10 = 4

So, this shows that this equation is the same as 12.3 divided by 0.4

The answer is C because 12.3 multiplied by 100 is equal to 1230, this is the same for 0.4

12.3 * 100 = 1230

0.4 * 100 = 40

So, the answer is both A and C.

Hope this helps! :)

Answer:

12.3 divided by 0.4 is 30.75

Step-by-step explanation:

You then go to letter A and 123/4 is also 30.75

but you go through the rest of the choices just in case.

B is 3.075 so that is incorrect

C is 307.5 so that is also incorrect

D is 3075 and that is incorrect and not 30.75.

Therefore your answer is A.

30.75 = 30.75.

Hope this helps :)

Answer:

Distance travelled by Monarch butterfly = 2000 miles

Distance travelled by desert locust  = 2800

Distance travelled by pink-spotted hawk moth= 7800 miles

Step-by-step explanation:

Let the distance travelled by Monarch butterfly  be "X" miles

Distance travelled by desert locust is equal to X + 800 miles

Distance travelled by pink-spotted hawk moth is equal to 4X -200 miles

The total distance travelled by the three is equal to 12600 miles

[tex]X + X + 800 + 4X -200 = 12600\\6X = 12600 -600\\6X = 12000\\X = 2000[/tex]

Distance travelled by Monarch butterfly = 2000 miles

Distance travelled by desert locust  = 2000 + 800 = 2800

Distance travelled by pink-spotted hawk moth = 4 * 2000 -200 = 7800 miles

Answer:

The answer is 1 and 4

Step-by-step explanation:

.25 x 4y = Y

36 divided by 4 = 9