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Bumek [7]
3 years ago
11

What are solutions to 40x^22-30x=135

Mathematics
1 answer:
Fiesta28 [93]3 years ago
3 0

Answer:

34

Step-by-step explanation:

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Simplify the expression to a + bi form:<br> (1 – 6i) + (12 + i)
Alenkasestr [34]

\\ \sf\longmapsto (1-6i)+(12+i)

\\ \sf\longmapsto 1-6i+12+i

\\ \sf\longmapsto 1+12-6i+i

\\ \sf\longmapsto 13-5i

4 0
3 years ago
Read 2 more answers
Round 100.9158 to the nearest whole number
Natalka [10]
The answer would be 101
6 0
3 years ago
If sales tax is 6% and you buy a shirt for $25 how much do you owe?
Leona [35]

Answer:

26.50

Step-by-step explanation:

First we need to calculate the sales tax

25 * 6%

Changing to decimal from

25 * .06

1.50

Then we add the tax to the cost of the shirt

25+1.50

26.50

We owe 26.50

7 0
2 years ago
Divide (13 + 6х2 +11х + 6) by (х + 2)
adoni [48]

Answer:

(13+6x²+11x+6)÷(x+2)

(6x²+11x+19)÷(x+2)

(6x²+11x+19)÷(x+2)

5 0
2 years ago
Suppose you have a five dollar off coupon at a fabric store you buy a fabric that cost $10 per yard
Lunna [17]
<h3>Answer:</h3>

1.) 10x-5=y

2.) $85

3.) 5.25 yards of fabric.

<h3>Step-by-step explanation:</h3>

1.) To write an equation for this problem, we need to figure out what every value means:

the variable x, represents the amount of yards of fabric you can buy

the variable y, represents the total amount of money after you found out (x) or the amount of yards of fabric.

1 yard of fabric equals $10, and we have a $5 coupon (-5)

Our equation is:

10x-5=y

This equation represents the relationship between the total cost of fabric, and the amount that you can buy.

2. In order to solve this problem we need to use our equation, one value is given which is 9.

9 represents x, the amount of yards of fabric.

Substitute 9 into x:

10(9)-5=y

<h3>Solve:</h3>

90-5=y

85=y

85 represents the cost of 9 yards of fabric, including the $5 coupon.

3.) This problem is similar to #2, although it's flipped.

The value given is $47.50, which represents (y), the total amount of money after (x) was found out.

But, we need to figure out (x).

Substitute $47.50 into (y):

10(x)-5=$47.50

Next, we need to figure out x by solving the opposite.

Adding the coupon to our answer can represent 10(x).

$47.50+5=52.50

10(x)=52.50

Lastly, divide both sides of the equation by 10.

10(x) / 10=52.50 /10

x=5.25

5.25 represents the amount of yards of fabric purchased if you paid $47.50.

7 0
2 years ago
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