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2 years ago

11

Nick and his cousin Sarah have the same birthday but Nick is 4 years older than cigarettes the variables that represents next ag

e and Y represents ears age which graph represents the relationship between Nick and age and Sarah's age

1 answer:

ad-work [718]2 years ago

3 0

x = Nick's age y = Sara's age

Nick is 8 years older than Sara, therefore

y = x - 8

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Jennifer has a taco stand.she found that her daily costs can be modeled by C(x)=x^2-40x+610. if she wants to keep her daily cost

Svetllana [295]

Plug in 300 for C(x), to get:
300= $x^{2} -40x=610$
Then subtract to get: 0= $0= x^{2} -40x+310$
Then use the quadratic formula and plug everything in. Use a calculator to simplify.

You'll get two answers: 29.486 and -0.513.
Since you can't sell <em>"negative" </em>tacos, use the positive solution
Around 29-30 tacos.

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2 years ago

Any help on this please ?

dlinn [17]

Answer:

(0,-5), I believe.

Step-by-step explanation:

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2 years ago

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DanielleElmas [232]

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2 years ago

If you multiply me by 7 add 1 and then divide by 4 you get 9 what number am I?

labwork [276]

Put the number as x and translate the English into math;
(7x+1)/4=9
Then solve for x
8x+1=36
8x=35
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Hope this helps.

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2 years ago

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3. Given the following similar triangles. Find the values of variables and label all the unknown angles

astraxan [27]

Answer:

The answer to your question is x = 6 and y = 9

Step-by-step explanation:

Data

AB = x DF = 18

BC = 5 FE = 15

AC = 3 DE = y

Process

1.- Find y

Use proportions to find it

DE/FE = AC/BC

Substitution

y/15 = 3/5

Solve for y

y = 15(3/5)

y = 45/5

y = 9

2.- Find x

AB/DF = BC/FE

Substitution

x/18 = 5/15

Solve for x

x = 18(5/15)

x = 90/15

x = 6

8 0

2 years ago