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CaHeK987 [17]
3 years ago
6

(Iv'e posted this question before, but I forgot the multiple choice answers)

Mathematics
1 answer:
Mama L [17]3 years ago
6 0
<h3>Option D</h3><h3>The simplified version of 7x − 4(x − 8) = 56 is 3x + 32 = 56</h3>

<em><u>Solution:</u></em>

<em><u>Given expression is:</u></em>

7x - 4(x - 8) = 56

Use distributive property to simplify the expression

By distributive property,

a(b + c) = ab + ac

Therefore,

7x - 4(x - 8) = 56\\\\7x - 4x + 32 = 56

Combine the like terms : 7x - 4x = 3x

Therefore,

3x + 32 = 56

Thus option D is correct

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6 0
3 years ago
How do you do this question?
oksian1 [2.3K]

Answer:

(-2, 0)

Step-by-step explanation:

ƒ(x) <0 in the intervals where the function is below the x-axis.

The only interval where ƒ(x) < 0 is (-2.0, 0.0).

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3 years ago
Sienna has $8 and is saving $3 per week. Jacob has $6 and is saving $4 per week. Which model represents the equation that can de
8090 [49]

Answer:

B

Step-by-step explanation:

From the given information:

Sienna has $8 denotes the unit blocks of x tiles. So, she saved $3 per week.

This implies that:

8x + 3(1) = 8x + 3

Also,

If Jacob as well had $6 which implies 6x unit block of tiles while he saved $4;

i.e.

6(x) + 4(1) = 6x + 4

So;

the model that can determine when Sienna will have the same amount as Jacob is:

8x + 3 = 6x + 4

7 0
3 years ago
Read 2 more answers
A 51 foot piece of wire is cut into 3 sections so that the first section is three times as long as the second section and the se
kirill [66]

Answer:

The length of the longest section x = 36 ft

Step-by-step explanation:

Total length of the wire = 51 ft

Let first section of wire = x

Second section of wire = y

Third section of wire = z

According to given data

x = 3 y & y = 4 z

Total length of the wire = x + y + z = 51

y + 3 y + \frac{y}{4} = 51

\frac{17}{4} y = 51

y = 12

x = 3 × 12 = 36

z = \frac{y}{4} = \frac{12}{4} = 3

Therefore the length of the longest section x = 36 ft

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3 years ago
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