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Bad White [126]
3 years ago
13

David has scores of 95​, 54​, 98​, 81 on his algebra tests. Use an inequality to find the minimum score he can make on the final

exam to pass the course with an average of 64 or​ higher, given that the final exam counts as 2 tests.
Mathematics
1 answer:
Sever21 [200]3 years ago
6 0

Answer:

The minimum score is 28.

Step-by-step explanation:

(95+54+98+81+2x)/6>64

(328+2x)/6>64

328+2x>384

2x>384-328

2x>56

x>28

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-3.1x+7-7.4x-1.5x-6(x-3/2
nalin [4]

Answer:

-2(9x-8)

Step-by-step explanation:

We are to simplify the expression -3.1x+7-7.4x-1.5x-6(x-3/2)

Open the parenthesis

-3.1x+7-7.4x-1.5x-6(x-3/2)

= -3.1x+7-7.4x-1.5x-6x+6(3/2)

= -3.1x+7-7.4x-1.5x-6x+9

Collect like terms

= -3.1x-7.4x-1.5x-6x+7+9

= -12x-6x+16

= -18x+16

= -2(9x-8)

Hence the simplified form of the expression is -2(9x-8)

6 0
3 years ago
Algebra 1 help the answers are on the bottom please help me
Sladkaya [172]

Answer:

Answer b is correct!

Inequality Form: x <1 /2 or x > 1

Interval Notation: (-infinity, 1/2) U (1, infinity)

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Hope this helps :)

4 0
3 years ago
Read 2 more answers
which of these is the algebraic expression for the verbal expression "ten times the difference of a number and twelve?" 10(x − 1
larisa [96]
10(x - 12) <== ur answer
7 0
3 years ago
What are the first 6 terms for this arithmetic equation?
Ipatiy [6.2K]

Answer:

3, - 2, - 7, - 12, - 17, - 22

Step-by-step explanation:

To find the first 6 terms substitute n = 1, 2, 3, 4, 5 into the formula, that is

t(1 + 1) = t(1) - 5 ⇒ t(2) = 3 - 5 = - 2

t(2 + 1) = t(2) - 5 ⇒ t(3) = - 2 - 5 = - 7

t(3 + 1) = t(3) - 5 ⇒ t(4)  = - 7 - 5 = - 12

t(4 + 1) = t(4) - 5 ⇒ t(5) = - 12 - 5 = - 17

t(5 + 1) = t(5) - 5 ⇒ t(6) = - 17 - 5 = - 22

3 0
3 years ago
A video game randomly chooses your car color and type. The probability of getting a red car is 0.20, and the probability of gett
pishuonlain [190]

Answer: Option 'D' is correct.

Step-by-step explanation:

Since we have given that

Event A: You get a red car

and

P(A)=0.20

Similarly,

Event B: You get a convertible

and

P(B)=0.40

So, if A and B are independent , then they must satisfy,

P(A).P(B)=P(A\cap B)

So,

P(A\cap B)=0.4\times 0.2=0.08

Hence, Option 'D' is correct, which states that the probability of getting a red convertible is 0.08.

7 0
3 years ago
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