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2 years ago

Can somebody help me please? ive been stuck for like 20 minutes

Mathematics

2 answers:

mote1985 [20]2 years ago

8 0

Answer:

Step-by-step explanation:

Ok so its saying that 14 is p therefor its saying 14/2 - 5 now if you turn that into a proper fraction you will get 7 now 7-5 is 2.

;)

Bess [88]2 years ago

7 0

Answer:

Step-by-step explanation:

Substitute the value of p for 14, then solve.

So p/2-5=14/2-5=7-5=2

Hope this helps

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What is the answer to ( 4n-1) + (3n-7)

ollegr [7]

You can only simplify the expression, because it doesn't equal anything. If you simplify it it would be:

4n-1 + 3n-7
4n+3n + -1-7
7n-8

3 0

2 years ago

Read 2 more answers

Using Cramer's rule to solve linear systems.

Rzqust [24]

Answer: Last Option

$x=2,\ y=-5$

Step-by-step explanation:

Cramer's rule says that given a system of equations of two variables x and y then:

$x =\frac{Det(A_X)}{Det(A)}$

$y =\frac{Det(A_Y)}{Det(A)}$

For this problem we know that:

$Det(A) = |A|=\left|\begin{array}{ccc}4&-6\\8&-2\\\end{array}\right|$

Solving we have:

$|A|= 4*(-2) -(-6)*8\\\\|A|=40$

$Det(A_X) = |A_X|=\left|\begin{array}{ccc}38&-6\\26&-2\\\end{array}\right|$

Solving we have:

$|A_X|=38*(-2) - (-6)*26\\\\|A_X|=80$

$Det(A_Y) = |A_Y|=\left|\begin{array}{ccc}4&38\\8&26\\\end{array}\right|$

Solving we have:

$|A_Y|=4*(26) - (38)*8\\\\|A_Y|=-200$

Finally

$x =\frac{|A_X|}{|A|} = \frac{80}{40}\\\\x=2$

$y =\frac{|A_Y|}{|A|} = \frac{-200}{40}\\\\y=-5$

4 0

2 years ago

Carlos will spend at most $29 on gifts. So far, he has spent $15. What are the possible additional amounts he will spend?

MariettaO [177]

Answer:

the possible amounts that he will spend is $29-$15=$14

4 0

2 years ago

Zach painted 92 square feet in the same amount of time that Blaise painted

Alika [10]

Answer:

The answer to your question is 252 in²

Step-by-step explanation:

Data

Zach = 92 ft²

Blaise = 13500 in²

Who painted more and how many more square inches? = ?

Process

1.- Convert the square feet to square inches

1 ft² ----------------- 144 in²

92 ft² ---------------- x

x = (92 x 144)/1

x = 13248 in²

2.- Subtract the lower value to the higher value

Area = 13500 in² - 13248 in²

Area = 252 in²

3.- Conclusion

Blaise painted 252 in² more than Zach.

4 0

2 years ago

Please help me with work

igomit [66]

1. the equation is y=mx+b. m= slope and b= y-intercept so your answer should be y=2/3x+2

2. point-slope form is y-y1/x-x1=m answer is y+4=-1(x-1)

3. i give up im sorry my brain is fried ;-;

4.uhh i graphed it and attached an image lol

dang i- cant do no more math today lol sorry good luck

7 0

2 years ago