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Bond [772]
2 years ago
12

Andre wrote the expression -2 + 4x = 3 to represent the relationship

Mathematics
1 answer:
ankoles [38]2 years ago
7 0

Answer:

4x -2 = 3    and 4x + -2 = 3

Step-by-step explanation:

-2 + 4x = 3 ---- 4x -2 = 3   ------------ 4x + -2 = 3

                            +2  +2                        - 2  +2

                     ------------------              ----------------        

                          4x = 5                         4x = 5

                          ----   ----                      -----  -----

                           4      4                         4      4

                  x = 1.25 or 1  1/4               x = 1.25 or 1  1/4

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What is the solution set to the inequality 7z+5>47
Vsevolod [243]

Answer:

z>6

<h2>Step-by-step explanation:</h2>

7z+5>47

Remove the 5:

7z+5-5>47-5\\7z>42

Divide by 7 to get z by itself:

\frac{7z}{7} >\frac{42}{7} \\z>6

5 0
3 years ago
What is 0.7 (The 7 is repeating) expressed as a fraction in simplest form?
timofeeve [1]

the answer was c

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5 0
3 years ago
Read 2 more answers
Two numbers A and B are such that the sum of 5% of A and 4% of B is two-third of the sum of 6% of A and 8% of B. Find the ratio
adoni [48]

Answer:

a : b = 4 : 3

Step-by-step explanation:

(mark as brainlist answer)

According to the given condition is the question :

Two numbers a and b are such that the sum of 5% of a and 4% of b is two-third of the sum of 6% of a and 8% of b

⇒ (5% of a) + (4% of b) = (2/3) × [(6% of a) + (8% of b)

⇒ 0.05a + 0.04b = 2/3 × (0.06a + 0.08b)

⇒ 0.15a + 0.12b = 0.12a + 0.16b

⇒ 0.03a = 0.04b

⇒ a/b = 4/3

⇒ a : b = 4 : 3

8 0
3 years ago
1 and 2 is all I need and you guys would help me from not getting beat
Sonja [21]

Answer:

1. -10

2. -11

Step-by-step explanation:

6 0
3 years ago
A Normal model states that if we draw repeated random samples of the same​ size, n, from some population and measure sample​ pro
notka56 [123]

Answer:

1) Randomization condition: We assume that we are selecting random samples so this condition is satisfied

2) 10% condition: We assume that the random sample selected is less than 10% of the population size

3) Success/ Failure condition:

For this case we need to satisfy this:

np \geq 10, n(1-p)\geq 10

So since the condition 1 and 2 are satisfied the correct option for this case would be:

a)np and nq must be respectively at least equal to 10

Step-by-step explanation:

Assuming the following options:

a)np and nq must be respectively at least equal to 10

b) as n increases, the distribution of sample proportions becomes less Normal

c) np and nq must be respectively less than 10

d) np plus nq must be at least 10.

For this case we need 3 basic conditions:

1) Randomization condition: We assume that we are selecting random samples so this condition is satisfied

2) 10% condition: We assume that the random sample selected is less than 10% of the population size

3) Success/ Failure condition:

For this case we need to satisfy this:

np \geq 10, n(1-p)\geq 10

So since the condition 1 and 2 are satisfied the correct option for this case would be:

a)np and nq must be respectively at least equal to 10

8 0
3 years ago
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