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Lera25 [3.4K]
3 years ago
7

Which expression is equivalent to 2x - 1/3(12x - 30)?

Mathematics
2 answers:
kramer3 years ago
8 0

Answer:

C

Step-by-step explanation:

Calculator

den301095 [7]3 years ago
7 0
C.because it would be the opposite of multiplying u r going to do it by the equation but I really can’t explain do it on paper
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Please answer soon.
Eva8 [605]

<u>Answer-</u>

Set of constraints to model the problem are,

12x+9y\geq 510\\y \leq 2x\\y \geq 25

<u>Solution-</u>

Let us assume,

x = the number of lawns weeded by Gwen,

y = the number of dogs walked by Fabio.

Gwen charges $12 each time she weeds a yard and Fabio charges $9 each time he walks a dog,

\text{Earnings of Gwen} = 12x\\\text{Earnings of Fabio} = 9y\\\text{Total earnings of Gwen and Fabio} = 12x+9y

They need at least $510 to purchase the new gaming station, means they need $510 or more than $510.

An equation for this situation will be,

12x+9y\geq 510

The number of dog walked by Fabio has scheduled is no more than twice the number of yards Gwen has scheduled to weed, means y must be less than or equal to 2x.

An equation for this situation will be,

y \leq 2x

Fabio will walk at least 25 dogs, means y must be greater than of equal to 25.

An equation for this situation will be,

y \geq 25


3 0
4 years ago
Find the slope of the line passing through the points A(-1, 1) and B(4,-5).
SpyIntel [72]

Answer:

is there supposed to be a picture?

Step-by-step explanation:

4 0
3 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
Arisa [49]

Therefore, the bones were 6612.5 years old at the time they were discovered.

<h3><u>Half life</u></h3>

Given that the radioactive element​ carbon-14 has a​ half-life of 5750 years, and a scientist determined that the bones from a mastodon had lost 57.5​% of their​ carbon-14, to determine how old were the bones at the time they were discovered, the following calculation must be made:

  • 50 = 5750
  • 100 = 11500
  • 57.5 = X
  • 57.5 x 11500 / 100 = X
  • 6612.5 = X

Therefore, the bones were 6612.5 years old at the time they were discovered.

Learn more about half life in brainly.com/question/24710827

#SPJ1

8 0
2 years ago
In the diagram, AE = 2AC and ∠BAC ≅ ∠DAE. What additional information is necessary to prove that ΔABC is similar to ΔADE, using
ss7ja [257]

Since you want to use the SAS theorem, you must find sides that are either side of angles BAC and DAE. You have already made use of sides AE and AC, so the other sides you need to choose are AB and AD. The appropriate relationship for similarity is ...

... AD = 2AB

since you want the sides of triangle ADE to be twice then length of those in triangle ABC.

7 0
3 years ago
Read 2 more answers
Giovanni bought 30 shares of Stock XYZ at the close price of $6.31. He
Diano4ka-milaya [45]

Answer:

Use the explantion to answer your question

Step-by-step explanation:

Amount he paid for first 20 shares

= $25 + (20 x $10.51)

= $25 + $210.20

= $235.20

Amount he paid for next 20 shares

= $25 + (20 x $8.93)

= $25 + $178.60

= $203.60

Thus, total amount paid

= $235.20 + $203.60

= $438.80

3 0
3 years ago
Read 2 more answers
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