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arlik [135]
3 years ago
8

Thirty-five more than .8 times a number is the same as 43 less than the product of -7 and the number

Mathematics
1 answer:
nydimaria [60]3 years ago
4 0

Answer:

0.8x + 35 = -7x - 43

The number is -10.

Step-by-step explanation:

Let x = the number.

0.8x + 35 = -7x - 43

7.8x = -78

x = -10

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20 points!! Pls help
Studentka2010 [4]

Answer:

<h3>(-4, 1)</h3>

Step-by-step explanation:

-x-3=y, therefore x = -y-3

-3x - 8y = 4

Find the value of y

Substitute the x in -3x - 8y = 4 with -y-3

We get

-3·(-y-3) - 8y = 4

3y + 9 - 8y = 4

-5y = 4-9

-5y = -5

<h3>y = 1</h3>

_______________

Find the value of x

x = -y-3

x = -1-3

<h3>x = -4</h3>

_______________

Answer (x, y) =

<h3>(-4, 1)</h3>

_____________________

#IndonesianPride - kexcvi

5 0
3 years ago
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A bacteria colony is quickly growing in a petri dish. The number of bacteria, y , is modeled by the function y=2(10)^2 where x i
koban [17]

Answer:

C = 159600

Step-by-step explanation:

Because its Y=2 (10) square so times by its self.

7 0
4 years ago
Use each of the given numbers only once and with any mathematical symbolto amount to a total to 439.
inessss [21]
50 x 9 = 450
450 - 4 = 446
446 - 7 = 439
8 0
3 years ago
What are two terms that add together to make -7 and that also multiply to make 6
neonofarm [45]

Answer:

-6 and -1

Step-by-step explanation:

When you add

-6+(-1)

-6-1

-7.

When you multiply

-6x-1

6.

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4 0
3 years ago
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Please! please! Anyone could help me with 8th Grade Math?!?
Fantom [35]

Answer:

How do you find the sum of factors of a quadratic equation?

Let r and s be the factors for the quadratic equation such that x^2+Bx+C=(x−r)(x−s) where sum of factors (r+s)=−B and the product of factors rs = C r = -2 - u s = -2 + u Two numbers r and s sum up to -4 exactly when the average of the two numbers is \frac{1}{2}*-4 = -2.

How do you solve a quadratic equation?

Quadratic equations such as this one can be solved by completing the square. In order to complete the square, the equation must first be in the form x^{2}+bx=c.

Step-by-step explanation:

3 0
3 years ago
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