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kondor19780726 [428]
1 year ago
9

Evaluate 5x-7 when x=2

Mathematics
1 answer:
Reptile [31]1 year ago
4 0

Answer:

the answer is 3since x is 2 so it becomes 5times 2 minus 7 equals to 3

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There are 200 end of the year school dance tickets available. Students who have perfect attendance are able to purchase them in
ivanzaharov [21]

Answer:

9% of tickets were sold in advance for the dance

Step-by-step explanation:

In order to find the percent of the tickets purchased in advance, you have to divide the number of tickets already purchased by the total number of tickets.

18 / 200 = 0.09

Now, you will multiply this number by 100 to get the percentage.

0.09 * 100 = 9

9% of the tickets that were purchased in advance are able to purchase.

6 0
3 years ago
Make x the subject, fully simplify please<br>will mark brainliest <br><br>7y⁴= 7y²(z-3ax)​
tekilochka [14]

Answer:

x = \dfrac{z - y^2}{3a}

Step-by-step explanation:

7y⁴ = 7y²(z - 3ax)​

Divide both sides by 7y².

y² = z - 3ax​

Add 3ax to both sides. Subtract y² from both sides.

3ax = z - y²​

Divide both sides by 3a.

x = \dfrac{z - y^2}{3a}

5 0
3 years ago
PLEASE HELP I WILL GIVE BRAINLEIST
marta [7]

Answer:

124%

Step-by-step explanation:

We can find the percent of the goal that she achieved while dividing the amount of time she exercised by the time she set as a goal. So, we have to figure out the value of 93/75. This is equivalent to 1.24. We can find 1.24 as a percentage by moving the decimal point over 2 (124) and then adding a percentage sign (124%). And that's the answer.

Hopefully that's helpful and all makes sense! :)

5 0
3 years ago
Read 2 more answers
Pls answer i will give brightest
antoniya [11.8K]

Answer:

choice 1

Step-by-step explanation:

A= 250 m²

Each triangle gets:

250/4= 62.5 m²

l=12 m, h= 10.4 m ⇒ A= 1/2*12*10.4 m²= 62.4 m² is the correct option, the rest give greater area

6 0
3 years ago
What is the solution to the system of linear equations? x - 2y = -3
Diano4ka-milaya [45]
X= -7 and y= -2
Hope this helps
i know this is the correct answer
8 0
3 years ago
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