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Bond [772]
3 years ago
7

Which expressions are equivalent to 7 (negative three-fourths x minus 3)? Select two options.

Mathematics
2 answers:
polet [3.4K]3 years ago
7 0

<em><u>The equivalent expressions are:</u></em>

7(-\frac{3}{4}x - 3) = (7 \times \frac{-3}{4}x) + (7 \times -3)\\\\7(-\frac{3}{4}x - 3) = \frac{-21x}{4} - 21

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

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

7(-\frac{3}{4}x - 3)

We have to find the equivalent expressions

By distributive property,

a(b + c) = ab + ac

Therefore,

7(-\frac{3}{4}x - 3) = (7 \times \frac{-3}{4}x) + (7 \times -3)\\\\7(-\frac{3}{4}x - 3) = \frac{-21x}{4} - 21

Thus equivalent expressions are found

Elan Coil [88]3 years ago
7 0

Answer:

Im pretty sure its a and e

Step-by-step explanation:

lmk if im wrong or right

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A box of pancake mix has `6` cups of mix.
kenny6666 [7]

The fraction of the box of pancake that eliza used is; 1/8.

<h3>What are fractions?</h3>

We are told that the box of pancake mix has 6 cups.

Now, Eliza uses 3/4 of a cup for a recipe.

Since there are 6 cups in the box, it means the fraction of the box of pancake that Eliza used is;

(3/4)/6 = 3/24 = 1/8

In conclusion, the fraction of the box of pancake that eliza used is 1/8.

Read more about fractions at; brainly.com/question/122227

6 0
2 years ago
The radioactive element​ carbon-14 has a​ half-life of 5750 years. A scientist determined that the bones from a mastodon had los
Gnesinka [82]

The bones at the time they were​ discovered when the radioactive element​ carbon-14 has a​ half-life of total 5750 years are 10062.5-year-old.

<h3>What is half-lives?</h3>

Half lives is the time interval which is need to decay the atomic nuclei of a radioactive sample.

There is a scientist who determined that the bones from a mastodon had lost 70.3​% of their​ carbon-14.  Thus, the fraction remaining is,

f=1-(70.3/100)=1-0.703

f=1-(70.3/100)=0.297

Now the fraction remaining can be given as,

f=(1/2)ⁿ

Here, n is the half life elapsed. Put the value of fraction remaining.

0.297=(1/2)ⁿ

n=1.75

The radioactive element​ carbon-14 has a​ half-life of total 5750 years. Thus,

Years=1.75*5750

Years=10062.5

Thus, the bones at the time they were​ discovered when the radioactive element​ carbon-14 has a​ half-life of total 5750 years are 10062.5-year-old.

Learn more about the half lives here;

brainly.com/question/2320811

#SPJ1

6 0
2 years ago
Jerry has 14 lemons that are packed in bags of 6 lemons . How many bags of lemons does jerry have ? Write a mixed number
DIA [1.3K]

Answer:

2 2/6 simplified 2 1/3

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
By convention, the independent variable is arrayed along the ____ in a scattergram. regression line calibration line vertical ax
babunello [35]

Answer:

Horizontal axis

Step-by-step explanation:

By convention, the independent variables is arrayed along the Horizontal axis (abscissa) in a scattergram.

The stcattergram has two dimensions

  • The X (independent) variable is arrayed along the horizontal axis.
  • The Y(dependent) variable is arrayed along the vertical axis.
  • Each dot scattergram is case in data set.
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7 0
3 years ago
Simplify this, include instructions
Cerrena [4.2K]
<span><span><span>3n</span>+1</span>−<span>2n</span></span>+<span>8

</span><span>Combine Like Terms:
</span>
<span><span><span>3n</span>+1</span>+<span>−<span>2n</span></span></span>+<span>8
</span>(3n+−2n)+(1+8)
=<span>n+<span>9
</span></span>
Answer is n+9


Hope I helped

5 0
3 years ago
Read 2 more answers
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