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storchak [24]
3 years ago
13

Simplify 7(x - 2) - 4x + 9. O A. 3x+7 O B. 3x - 5 O C. -11X- 11 D. -21 x + 49

Mathematics
1 answer:
Makovka662 [10]3 years ago
4 0

Answer:

b. 3x-5

7(x-2)-4x+9

7x-14-4x+9

(7x-4x)(-14+9)

3x-5

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A ship is carrying gold bars and silver bars in the ratio 13:17. The ship's load
andreyandreev [35.5K]

Using proportions, considering the weight of each bar and the ratio, it is found that the ship is carrying 52 gold bars.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

Each bar weighs 5 kg, and the total weight is of 600 kg, hence the number of bars is given by:

n = 600/5 = 120.

The proportion of gold bars is given by:

p = 13/(13 + 17) = 13/30

Hence, out of 120 bars, the number of gold bars is given by:

nG = 120 x 13/30 = 4 x 13 = 52.

More can be learned about proportions at brainly.com/question/24372153

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4 0
2 years ago
Question 7 not answered which set of numbers with a difference of 2 is a factor pair of 48? answer choices 2 and 4 4 and 6 6 and
ehidna [41]

Answer:

  6 and 8

Step-by-step explanation:

All you have to do is find the difference between the numbers in each factor pair and make sure the factors combine to give 48.

2 and 4 . . . . . have a difference of 2, but 2·4 ≠ 48

4 and 6 . . . . . have a difference of 2, but 4·6 ≠ 48

6 and 8 . . . . . have a difference of 2, and 6·8 = 48

24 and 2 . . . . do not have a difference of 2

6 0
3 years ago
The equation 7×+1=4×+10 ?
HACTEHA [7]
7x-4x=10-1
3x=9
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5 0
4 years ago
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Who is taking in more calories if the small bag of snickers are the exact same size: A person in a group where 5 people are shar
MrRa [10]

Answer:

A person in a group where 5 people are sharing 3 small bags of snickers

Step-by-step explanation:

Let the number of calories in one bag of snickers =x

Number of calories in 3 small bags of snickers =3x

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Number of calories in 2 small bags of snickers =2x

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We then compare the two.

Let x=1

\dfrac{3}{5}=0.6$ calories per person\\\dfrac{2}{7}=0.29$ calories per person

Therefore, a person in a group where 5 people are sharing 3 small bags of snickers gets more calories.

3 0
3 years ago
Common factors of 60 and 126
KonstantinChe [14]
Common factors of 60 and 126 are:

1, 2, 3, 6

Hope this helps
3 0
3 years ago
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