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rjkz [21]
3 years ago
5

At 4:00 am, the outside temperature was -14 degrees Fahrenheit. By 4 pm, the temperature had risen 38 degrees Fahrenheit. What w

as the temperature at 4pm?
Mathematics
1 answer:
sineoko [7]3 years ago
7 0
Salutations!

<span>At 4:00 am, the outside temperature was -14 degrees Fahrenheit. By 4 pm, the temperature had risen 38 degrees Fahrenheit. What was the temperature at 4 pm?

We are dealing with negative numbers, so, we need to be very careful while dealing with the opposite operation signs.

Lets form this into statements ---

Temperature at 4:00 AM = -14 degrees Fahrenheit.

Temperature risen at 4 PM = 38 degrees Fahrenheit

Temperature at 4 PM = -14 + 38 = 24 degrees Fahrenheit.

The temperature at 4 PM was 24 degrees Fahrenheit.

Hope I helped (:

Have a great day!</span>
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Eli buys 8 gigabytes of memory for his computer he spends 392. whatbis the cost of 1 gigabyte memory
kotykmax [81]
If Eli spends $392 for 8 gigabytes of memory, then 8g=392, where g is a gigabyte of memory. All you have to do is to reduce the equation. In this case, divide both sides by 8 to get g=49. So the cost of 1 gigabyte of memory is $49.
6 0
3 years ago
consider the graph of the following qudratic equation. y= -x^2 -10x + 24.What is the y-value of the vertex?
3241004551 [841]

Given that the quadratic equation is y=-x^{2}-10 x+24

We need to determine the y - value of the vertex.

<u>The x - value of the vertex:</u>

The x - value of the vertex can be determined using the formula,

x=-\frac{b}{2 a}

where a=-1, b=-10, c=24

Substituting these values, we get;

x=-\frac{(-10)}{2(-1)}

Simplifying the terms, we get;

x=-\frac{-10}{-2}

x=-5

Thus, the x - value of the vertex is -5.

<u>The y - value of the vertex:</u>

The y - value of the vertex can be determined by substituting the x - value of the vertex ( x = -5) in the equation y=-x^{2}-10 x+24

Thus, we get;

y=-(-5)^{2}-10(-5)+24

Simplifying the values, we have;

y=-25+50+24

y=49

Thus, the y - value of the vertex is 49.

8 0
2 years ago
Frieda and Joanne are laying a 17 meter track for model trains. They completed one stretch that is 7.44 meters long and another
Dvinal [7]
D is the correct answer. Hopes that helps.
3 0
3 years ago
Plz help me 75 points for the 2 questions!!!
liraira [26]

Answer:

<h3>#1</h3>

<u>The system of equations:</u>

  • 2x + 7y = -11
  • 3x + 5y = -22

Solve by elimination.

<u>Triple the first equation, double the second one, subtract the second from the first and solve for y:</u>

  • 3(2x + 7y) - 2(3x + 5y) = 3(-11) - 2(-22)
  • 6x + 21y - 6x - 10y = -33 + 44
  • 11y = 11
  • y = 1

<u>Find x:</u>

  • 2x + 7*1 = -11
  • 2x = -11 - 7
  • 2x = -18
  • x = -9

<u>The solution is:</u>

  • x = -9, y = 1
<h3>#2</h3>

<u>Simplifying in steps:</u>

  • 8u - 29 > -3(3 - 4u)
  • 8u - 29 > - 9 + 12u
  • 12u - 8u < -29 + 9
  • 4u < -20
  • u < -5
3 0
3 years ago
(15pts) factor each completly
Natali [406]
Your answers:

10) (m+7)(m+8) 11) (b-10)(b+2)

12) (k-4)(k+10) 13) (n-9)(n-8)

14) (7r+3)(r-2) 15) (5a+6)(a+2)

Hope it helps
5 0
3 years ago
Read 2 more answers
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