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3 years ago

Which expression represents the following algebraic statement?

Mathematics

2 answers:

V125BC [204]3 years ago

8 0

Answer:

7x - 2y

Step-by-step explanation:

I just guess so if wrong sorry

Nat2105 [25]3 years ago

6 0

The first one, 7x-2y

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a bird is flying north east. Over a certain period of time, it flies 3/8 mile east and 5/6 mile north. How many miles does the b

kvv77 [185]

9/20 is your answer..............

8 0

3 years ago

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Ellen is making jewelry sets that contain a bracelet and a pair of earrings. Each bracelet uses 3 times as many beads as one ear

dangina [55]

<h2 /><h2>So there are a pair of earrings and a Bracelet. </h2>

It's given that the Bracelet uses 3 times the number of beads that's used in making a single earring.

It's also given that one single earing has 13 beads. So a single bracelet would have (3×13) beads .... and that's equal to 39.

Making a single set of jewellery needs a pair of earrings and a Bracelet.

So total number of required beads will be =

3 0

3 years ago

"three times the difference between t and y"?

garik1379 [7]

Answer:

3(t-y)

Step-by-step explanation:

difference means subtractions

3*(t-y)

3 0

2 years ago

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A car rental agency rents 190 cars per day at a rate of 29 dollars per day. for each 1 dollar increase in the daily rate, 5 fewe

Leviafan [203]

The equation that we can create from this situation is:

i = (190 – 5 x) * (29 + x)

where i is the income and x is the increase in daily rate

Expanding the equation:

i = 5510 + 190x – 145x - 5x^2

i = -5x^2 + 45x + 5510

Taking the 1st derivative:

di/dx = -10x +45

Set to zero to get the maxima:

-10x + 45 = 0

x = 4.5

So the cars should be rented at:

29 + x = 33.5 dollars per day

The maximum income is:

i = (190 – 5*4.5) * (33.5)

i = 5,611.25 dollars

7 0

2 years ago

Use exterior angles to show that the angle sum of quadrilateral PQRS is 360°.

Shkiper50 [21]

Answer:

I don't really know but one triangle is 180 degrees so two added together is 360 degrees...

but ohh I remembered

a=c+d (since a+b=180 and c+d+b=180)

e=g+h (since e+f=180 and g+h+f= 180)

and the fact is that c+d+g+h+b+f=the angle sum of quadrilateral PQRS

a+e+b+f= the angle sum of quadrilateral PQRS (by substitutions)

a+e+b+f=360 (four angles are from one origin so it's 360 degrees )

8 0

2 years ago