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Harman [31]
3 years ago
15

Math help rightnow plzzzzzzzzzzzzzzzzzzzzzz 1 attachment answer all

Mathematics
1 answer:
raketka [301]3 years ago
6 0

#1

x-7>10

x>10 + 7 

x>17

#2

3x <= 21

x <= 21/3

x<= 7

#3

5a - 2<18

5a < 18 + 2

5a <20

a <20/5

a<4

#4

2t + 8 >= -4(t +1)

2t +8>= -4t -4

2t + 4t >= -4 - 8

6t >= -12

t>= -12/6

t>= -2

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What would the answer be
Mrac [35]

Answer:

(x,y)  (2,-1)

Step-by-step explanation:

3 0
3 years ago
the sum of two numbers is 70. the larger number is five less than twice the smaller number . what are the two numbers
earnstyle [38]
X+y=70
x=2y-5
x=larger number
y=smaller number
now plug in the value of x to only have one variable in the equation...
Way to solve for y:
(2y-5)+y=70
3y-5=70
add 5 on both sides...
3y=75
divide by 3 on both sides
y=25
1st way to solve for x:
now plug in y in the original equation...
x+25=70
subtract 25 on both sides...
x=45
2nd way to solve for x:
plug in y for the second equation...
x=25(2)-5
x=50-5
x=45
answer: the two numbers are 45 and 25.

3 0
3 years ago
Jeffery and carrie deposit 800.00 into an savings account which earns 4%interest compounded quarterly they want to use the money
tekilochka [14]

Answer:

  • 866.29

Step-by-step explanation:

  • Deposit = 800
  • Interest rate = 4% compounded quarterly
  • Time = 2 years

<u>Number of compounds:</u>

  • 2 / 1/4 = 8

<u>Saving amount at the end of 2 years:</u>

  • 800*(1 + 0.04/4)^8 = 866.29
3 0
3 years ago
The cost and revenue functions for producing and selling x units of a product are given. Cost and revenue are expressed in dolla
Flauer [41]

Answer:

(A) the number of units produced and sold at break-even point is the value of X and that is 1.126 units.

(B) the dollar amount coming in and going out at this point/level is the price of X and that is 0.37 dollars

(C) the profit function for X units produced and sold is: π(x) = R(x) - C(x)

where pie (the symbol "π") represents PROFIT.

Step-by-step explanation:

(A) C(x) = 75x + 84 ...(equation 1)

660R(x) = 245x

R(x) = 245x ÷ 660 = 0.3712x

So R(x) = 0.3712x ...(equation 2)

To find X, equate the cost function to the revenue function

75x + 84 = 0.3712x

X = -1.126units

Since quantity cannot be negative in real life situation, we use the modulus of X in place of the above value.

|X| = 1.126 hence X = 1.126 now

Since we equated cost to revenue in order to get this quantity X, X is the quantity produced and sold at break even point.

Break-even point is the point where cost = revenue

This is also the point where profit is zero because profit = revenue - cost

(B) Revenue = Price × Quantity

R = P×Q

Our revenue here is 0.3712x

Which is equal to 0.418 dollars

So P = R÷Q

Price = 0.418÷1.126 = 0.37 dollars

(C) This is the profit function from producing and selling X units of the product: π(x) = R(x) - C(x)

4 0
3 years ago
Find the equation of lines
bearhunter [10]

Answer:

y = x + 6.

Step-by-step explanation:

y = mx + c  where m = the slope of the line and c is the y-intercept.

So here m = 4/4 = 1 and c = 6, so it's:

y = 1x + 6.

3 0
3 years ago
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