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3 years ago

38% of what number is 57

1 answer:

7 0

You can get the answer by dividing the number 57 by the decimal of the percent thirty-eight (.38), you see you multiply a decimal by a number or a number by a decimal to get a smaller number, whereas dividing like you do here gets and bigger number. ( In this case the answer to your question) So in conclusion 57 divided by .38 = 150, your answer.

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-18,-13,-8,-3,....<br><br> Find the above sequential formula

zhuklara [117]

The first term (a) is - 18

You add 5 to get to the next term. Or you can solve it by taking any 2 consecutive terms and find their difference.

Formula

d = t4- t3

Givens

t4 = - 3

t3 = - 8

Solution 1

d = t4 - t3 Substitute

d = -3 - ( - 8) Remove the brackets

d = -3 + 8 Combine

d = 5 Difference

Remark

Find the general formula

tn = - a + (n - 1)d Substitute

So term 20 = Example

t20 = -18 + (20 - 1)*5 Combine the inside of the brackets. Remove the brackets

t20 = - 18 + 19*5 Combine 19 and 5

t20 = -18 + 95 "Subtract"

t20 = 77 Answer

5 0

3 years ago

Solve this equation for x. round your answer to the nearest 0 = ln (x+6)

MissTica

Answer: $x=-5$

Step-by-step explanation:

To solve this exercise you need to remember the following:

$e^{lnx}=e^{lny}$ → $x=y$

Therefore, keeping the above on mind, you can solve for x as following:

$e^0=e^{ln(x+6)}$

$e^0=x+6$

Remember that, by definition: $a^0=1$ , then you have:

$1=x+6$

Subtract 6 from both sides of the equation.

Then the value of x is:

$1-6=x+6-6\\x=-5$

4 0

3 years ago

What multiplies to be 42 and adds to be 23?

Furkat [3]

A) x * y = 42 (or x = 42/y)
B) x + y = 23

B) 42/y + y = 23
42 + y^2 = 23y
y^2 -23y + 42 = 0

The numbers are 21 and 2

7 0

3 years ago

What is m2 <br> What is m1

Dimas [21]

Answer:

m1=105⁰, m2=75⁰

Step-by-step explanation:

m2=75⁰

m1+m2=180⁰

m1=180-75=105⁰

4 0

3 years ago

Read 2 more answers

May I know the values of x and y of the following equation?<br>(5-3i)(x-yi) = 3(x+2yi)+1-2i

gogolik [260]

Answer:

(x, y) = (17/31, 1/31)

Step-by-step explanation:

Simplify the given equation, then equate real parts and equate imaginary parts. This will give you two equations in the two unknowns.

<h3>simplify</h3>

(5 -3i)(x -yi) = 3(x +2yi) +1 -2i

5x -5yi -3xi +3yi² = 3x +6yi +1 -2i

(5x -3y) +i(-5y -3x) = (3x +1) +i(6y -2)

<h3>equate real, imaginary parts</h3>

This resolves to the two equations ...

5x -3y = 3x +1
-5y -3x = 6y -2

<h3>solve the system</h3>

Putting these equations into general form gives ...

2x -3y -1 = 0

3x +11y -2 = 0

Using the "cross multiplication method" to solve these equations, we get ...

x = ((-3)(-2) -(11)(-1))/(2(11) -3(-3)) = 17/31

y = ((-1)(3) -(-2)(2))/31 = 1/31

The values of x and y that satisfy this equation are ...

(x, y) = (17/31, 1/31)

_____

You can read more about the cross multiplication method here.

brainly.com/question/26397343

3 0

2 years ago