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blondinia [14]
3 years ago
14

Which of the following are solutions to the equation below? Check all that apply. 15x2 - 44x + 32 = 0

Mathematics
1 answer:
krek1111 [17]3 years ago
6 0
If you want to find the solutions for this you have to factor it.  Since it's a second degree polynomial, you'll have 2 solutions.  Factoring this using the quadratic formula, you'll get factors of (5x-8)(3x-4).  Solving these for x you get x = 8/5 and x = 4/3.
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Which equation represents the relationship 3 more than a number is 7
klasskru [66]

Answer:

3+n=7

Step-by-step explanation:

I used as as number

Because there is 3 more than the number, we add 3

3+n is 7 and is means =, so 3+n=7

Hope this helps

6 0
3 years ago
Fill in the blanks. To multiply a number by 0.01 move the decimal point ____ places to the _______. *
Ghella [55]

Answer:

To multiply a number by 0.01 move the decimal point <u>2</u> places to the <u>left</u>.

Step-by-step explanation:

for example, lets multiply 5 by 0.01

5 x 0.01=0.05

originally, 5 in decimal form is 5.0

when it is multiplied by 0.01, the decimal point moves first from 5.0 to 0.5, then 0.5 to 0.05

8 0
3 years ago
Paulina works out with a 2.5 kilogram mass. What is the mass of the 2.5 kilogram mass in grams
seraphim [82]
Hey there, if 1 kilogram equals 1,000 grams, then 2 kilograms equals 2,000 grams. Now, we divide 1,000 by 2 and that would give us 500. Then, we add 2,000 by 500 and that would give us 2,500 grams. 2.5 kilograms equal 2,500 grams.
4 0
3 years ago
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Mice21 [21]
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5 0
3 years ago
Dave bowers collects u.s. gold coins. he has a collection of 50 50 coins. some are​ $10 coins, and the rest are​ $20 coins. if t
bixtya [17]

For this case, the first thing we must do is define variables.

We have then:

x: number of $ 10 coins

y: number of $ 20 coins

We now write the system of equations that models the problem:

x + y = 50

10x + 20y = 740

The graphical solution (see attached image) is given by the intersection of the equations.

We have then:

 x = 26

y = 24

Answer:

Dave has:

26 $ 10 coins

24 $ 20 coins

6 0
4 years ago
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