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gayaneshka [121]
4 years ago
10

I’m Stukk I believe it’s 28 or 7 but I’m not sure helppp

Mathematics
2 answers:
qwelly [4]4 years ago
7 0

Answer:

the answer would be 28.

Step-by-step explanation:

you're multiplying the top and bottom by 7. 3 *7=21 for the bottom

4*7 = 28 for the top

Hope this helps

-Kayla


Degger [83]4 years ago
6 0

Answer:

The answer is A. 28

Step-by-step explanation:

When you divide 21 into 3 you get 7.

So you have to multiply 7 to get 21. Whatever you do to the bottom or top you have to do to the opposite so you have to  multiply 7 by 4 and you get 28.


Hope this helps


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If a road has a 4% grade and rises 200 feet, what is the run?<br><br> 5<br> 8<br> 5000<br> 8000
Soloha48 [4]

Answer:

5000

Step-by-step explanation:

According to Wikipedia, the percent measureof a road grade is 100 times rise over run. in your case you know everything but run, so let's set up an equation

4=100 * 200/ run

Now just use algebra

4 = 20000/ run

run* 4= 20000

run= 20000/4

run= 5000

let me know if you didn't understand anything.

7 0
4 years ago
Please can someone help me solve this!! :))
Talja [164]

Answer:

A"(-1, -3), B"(-2, -6), C"(1,-7)

Step-by-step explanation:

y= -4 is a horizontal line that cuts y-axis at (0, -4)

A'(-4, -5), B'(-5,-2), C'(-2,-1) are given on thhe graph

first we reflect over the line m, y= -4

A"(-4, -3), B"(-5, -6), C"(-2,-7) because the line m is the bisector of what conects the image and preimage points

second we translate T(3,0) so you add a 3 to the x coordinate of each point

A"(-4+3, -3), B"(-5+3, -6), C"(-2+3,-7)

A"(-1, -3), B"(-2, -6), C"(1,-7)

5 0
3 years ago
Determine the values of k for which the equation has no solution:
Bingel [31]

Let's rewrite the equation as


|3x+k| = 1-4 = -3


This should be enough to convince you that the equation has no solutions, no matter which value for k you choose. In fact, the left hand side of the equation is an absolute value, which by definition is always positive, or zero in the worst case.


The equality asks for this quantity to equal -3, a negative number.


A non-negative quantity can never equal a stricktly negative quantity, so the equation has no solutions.

4 0
3 years ago
Can you help me, I'm stuck
katrin [286]

Answer:

x=9

Step-by-step explanation:

7 0
4 years ago
Read 2 more answers
PLEASE HELP!
den301095 [7]

Answer:

7 percent

Step-by-step explanation:

We have the following information from the question:

The probability that a student chooses art as an elective is 15 percent: P(A)=15\%

The probability that a student chooses art or drama is 20 percent: P(A\cup D)=20\%

The probability that a student chooses both art and drama is 2 percent:

P(A\cap D)=2\%

Recall that:

P(A\cup D)=P(A)+P(D)-P(A\cap D)

We plug in the various probabilities to get:

20\%=15\%+P(D)-2\%

20\%-15\%+2\%=P(D)

7\%=P(D)

\therefore P(D)=7\%

Hence the probability that a student chooses drama as an elective is 7 percent

6 0
3 years ago
Read 2 more answers
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