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Nataly_w [17]
4 years ago
15

What is the best way to solve this

Mathematics
1 answer:
Komok [63]4 years ago
6 0
Make 2 equations one for the price and one for quantity.  so first set x = AA and y= AAA. for price 37= 1x+.75y. now for the quantity we have x+y=42. Now we can solve by subtracting the equation for price from the equation for quantity and we get .25y =5. solving this we get y= 20. Now we plug that value back in and solve for x. 22 double A's and 20 triple A's.
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Please help me thanks please please
Usimov [2.4K]

Answer:

30.5

Step-by-step explanation:

4 0
3 years ago
If y = 2x3 – 4x and dx, dt equals 4, find dy, dt when x = 1. give only the numerical answer. for example, if dy, dt = 3, type on
Rufina [12.5K]
<span>y= 2*3-4x;
    differentiate with respect to t we get dy = -4xdt; -- eqn 1
   given dt = 4 substitute in eqn 1 we get , dy =-4 x( 4) = -16x; --eqn2
  given x=1 then sub then the value of x in eqn 2 we get dy = -16(1)=-16
   ie Ans dy = -16</span>
4 0
3 years ago
f(x)=x2+5x-4 has a domain D={-4,-2,0,3,5} find the range (f(x)) value for each x value in the domain
True [87]

Answer:

The range here is the set {8, -10, -4, 20, 32}.

Step-by-step explanation:

Please use " ^ " to denote exponentiation.  Thanks.   f(x)=x^2 + 5x - 4

f(-4)=(-4)^2 + 5(-4) - 4  =  8

f(-2)=(-2)^2 + 5(-1) - 4   = -10

f(0)=0^2 + 5(0) - 4 = -4

f(3) =3^2 + 5(3) - 4      =   20

f(4)=4^2 + 5(4) - 4       = 32

In this problem we have to calculate the actual function values for the given domain (input values).  The range here is the set {8, -10, -4, 20, 32}.

5 0
3 years ago
jody runs the 500 yard dash for his school track team in 1 minute. Find this rate in yards per second
fomenos

Answer: 8 1/3 yards per second

500 yards/60 seconds=8 1/3 yards per second

Check Work:

8 1/3 yards per second*60 seconds=500 yards per minute.

Hope this helps!

4 0
3 years ago
Find the value of x and y
zheka24 [161]

Answer:

x = 70

y = 40

Step-by-step explanation:

First, we need to find the measure of x.

As x and the angle 110 share a line, they must add up to 180 degrees. This means that the measure of x is 70.

The two ticks on the sides of the triangle indicate that these sides are equal in length. This also means that the corresponding angles will also be equal. This means that both x and the other angle are 70.

This means that we have two of the three angles in the triangle, so we can easily find the third, which is y.

70+70+y=180\\\\y+140=180\\\\y=40

5 0
4 years ago
Read 2 more answers
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