### Answered by answersmine:

.30x +x = 143

1.30x =143

divide each side by 1.30

x = 110

check

(30% x 110) + 110 = 143

33 + 110 = 143

143 = 143

hope this helps.

## Related questions in Mathematics

### Find two consecutive even integers such that their sum is equal to the difference of three times the larger and two times the smaller.

x+(x+2)=3(x+2)-2x

2x+2=3x+6-2x

2-6=x

x=4

x+2=6

the numbers are: 4 and 6

### Im thinking of a number .the 1000s digit is lower than 4.the100s digit is 4 . the 10s digit is even .the 1s digit is 6.find eight possible number

### What value of M makes the expression equal a number more than 3? 3M Options: A. 9/16 B. 6/5 C.7/16 D.2/3

3.2/3=2

### What is the multiple of two numbers and one of the number is a multiple of another give an example

### Write to explain two ways you can find the sum of 3+4+5.

way 2: draw 3 tally marks then 4 more then 5 more then count them all together to get the sum 12

hope this helped:)

### A winter resort took a poll of its 400 visitors to see which winter activities people enjoyed. The results were as follows: 188 liked to ski, 144 liked to snowbiard, 67 liked to ice skate, 39 liked to ski and snowboard, 35 liked to ski and ice skate, 10 liked to snowboard and ice skate, 5 liked all three activities. Use a Venn diagram to determine how many of those surveyed enjoyed exactly one of these activities. none of these activities. at least two of these activities . snowboarding and ice skating, but not skiing, snowboarding or ice skating, but not skiing. only skiing

**246**

None of the activities :

**1**

At least one activity:

**74**

Snowboarding and Ice skating but not skiing:

**5**

Snowboarding or ice skating but not skiing:

**132**.

Only skiing :

**119**.

The diagram is in the attachment.

### The moon is about 240,000 miles from Earth .What is the distance written as a whole number multiplied by a power of ten?

### A complex number, (a + bi), multiplied by (2 + 3i) and added to -i gives the product of (-11 + 5i) and (1 – i).a = and b =

**Answer:**

Hence, we have:

** a= 3 and b= 4**

**Step-by-step explanation:**

It is given that:

A complex number, (a + bi), multiplied by (2 + 3i) and added to -i gives the product of (-11 + 5i) and (1 – i).

i.e.

Since, we know that :

Hence, we have:

i.e. we have:

and

On multiplying equation (1) by 2 and equation (2) by 3 we get:

on putting the value of a into equation (1) we get:

### 15 dollars every lawn he mows. Is the amount of money proportional to the number of lawns mowed

### EXERCISE A one-year membership to a gym costs $725. The registration fee is $125, and the remaining amount is paid monthly. Define a variable. Then write and solve an equation to find how much new members pay each month.

### Find a number between 364 and 384 which is multiple of 3 and7

### Right each number in standard form 8 + 0.0 + 0.05 + 0.009

= 8.000 + 0.050 + 0.009

= 8.000 + 0.059

=

**8.059**

Hope this helps you! =)

### A square field is to be ploughed ramu gets it ploughed in rupees 34560 at the rate of 15 perm sq find the side of square field.

### What number should be added to the sum of 83524 and 4365 to get 900.

83524+4365=87889

87889-900=86989

so........

83524+4365+(-86989)=900

### F(x)=√(10-3x) find the formula

y=sqrt(10-3x)

you want to make x the subject

square both sides

y²=10-3x

3x=10-y²

x=(10-y²)/3

now replace y with x

f^-1(x)=(10-x²)/3

### Choose the correct solution in roster form. S is the set of prime numbers that are less than 15. A- { 2, 3, 5, 7, 11, 13 } B- { 2, 3, 5, 7, 9, 11, 13 } C- { 1, 3, 5, 7, 9, 11, 13 } D- { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 } ---------------------------------------------------------------------------------- Write the solution to the inquality in set-builder notation. 9t - 4 >32 A- { t | t > 4 } B- { t | t > 6 } C- { t | t > 28 } D- { t | t > 36 }

Mathematically speaking, roster form of a set is a list of elements that are in the set.

Basically, to represent a set in roster form, we simply list the elements of the set, separated by commas, within braces.

as per the question, consider the set, S, described verbally:

S = {all prime numbers less than 15}

To write this in roster form, we would first identify all the elements in the set. Let's see. . . the integers that are strictly greater than 0 and less than or equal to 4 would be the integers that are between 0 and 4, not including 0, but including 4, so 1, 2, 3, and 4.

Now we just write these integers, separated by commas, within braces.

** S = {2, 3, 5, 7, 11, 13}. So answer is option A**

Set notation is a representation of a set of the form {element | properties of that element}.

To represent the inequality in set builder notation, we will first have to solve for the inequality as follows:

9t - 4 >32

**Step 1: Add 4 on LHS(Left hand side) and RHS(right hand side) of the inequality.**

9t > 36

**Step 2: Divide LHS and RHS by 9**

**t > 4**

This means that the inequality holds for all values of t greater than 4 i.e.

**{ t | t > 4 }. so answer is option A**

### Doreen schmidt is a chemist. She needs to prepare 36 ounces of a 10% shydrochloric acid solution. Find the amount of 18% solution and the amount of 9% solution she should mix to get this solution

Amount of 18% solution = x

Amount of 9% solution = 36 - x

Using the fact that (amount of solution) * (percent HCl) = amount HCl we can set up an expression for the amount HCl in a mixture of 18% and 9% solutions with a total volume of 36oz.

Amount of HCl = x*0.18 + (36 - x)*0.09

If we divide this by the amount of solution we get percent HCl, and we have a target of 10% HCl. Now we have an equation to solve,

[x*0.18 + (36 - x)*0.09]/36 = 0.1

x*0.09 + 3.24 = 3.6

.09x = 0.36

x = 4

Therefore,

4 ounces of 18% HCl solution and 32 ounces of 9% HCl solution

Check:

[(4*.18) + (.09*32)]/36 = 0.1?

0.1 = 0.1 Yes.

### The area of rectangle is 1936m sq. if the length is 4 times its breadth. find the dimension of the rectangle.

So, length = 4x m.

Area of the rectangle = 1936m sq.

So,

4x × x = 1936

4x^2 = 1936

x^2 = 1936/4

x^2 = 484

x = √484

x = √22×22

x = 22

Hence, breadth = 22m.

Length = (4×22)m = 88m.

### Find the volume of cubical box . if the cost of painting of outer surface is rs 1440 at the rate rs 15 per mcube

1)We have to calculate the surface of this cubical box.

Rate=cost of painting / surface ⇒surface=cost of painting/rate

Data:

Rate=$15/m²

cost of painting=$1440

Surface=$1440/($15/m²)=96 m²

2)We find out the length of the side:

Surface of a cubical box=6(side²)

Data:

Surface of a cubical box=96 m2

Therefore:

96m²=6 (side²)

side²=96 m²/6

side²=16 m²

side=√(16 m²)=4 m

3) We find the volume of a cubical box.

volume=(side³)

volume=(4 m)³

volume=64 m³

**Answer: the volume of this cubical box would be 64 m³.**

### Given: F(x) = 2x - 1; G(x) = 3x + 2; H(x) = x 2 Find F{G[H(2)]}

### How to find the positive value of x cubed, (equals 8)?

### Which results in a higher prices: a 10% markup followed by a 10% discount or a 10% discount followed by a 10%mark up?

Example A:

10% markup is $20.

meaning that the item now costs $220.

10% discount on a $220 item is $22.

Now the item costs $198.

Example B:

10% discount is $20.

the item now costs $180.

10% markup is $18.

Now the item costs $198.

They cost the same.

### A petting zoo has 5 lambs 11 rabbits 4 goats and 4 piglets. find the ratio of goats to the total number of animals. write the ratio in the simplest form then explain its meaning

5+11+4+4=24

Then, find the number of goats and put that into a ratio with 24

4:24

1:6

This ratio means that for every 6 animals there is 1 goat

Hope this helps :D