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3 years ago

Can someone please help me out with this its really urgent Ill mark brainliest

Mathematics

1 answer:

Alex73 [517]3 years ago

7 0

Answer:

smart dot company c=.50t+12

communication plus c=2.50t

Step-by-step explanation:

smart dot has the starting point of $12 per month already so that would be your y-intercept with the equation being y=mx+b , y being the cost m being the amount of money per hour, x being the time spent, and b being the starting cost.

So with that smart dot would be c=.50t+12

with communication plus not having that starting point it would just be c=2.50t

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john uses a small card and a large card that are similar in size in his magic show. what is the area if the small card?

Sedaia [141]

Answer:42.7in^2

that what answer i am sure of

4 0

3 years ago

PLSSSSS HELP!!!!!!!!!

Anna11 [10]

Answer:

x=30º

∠CAB=60°

∠ACB=80°

Step-by-step explanation:

Because the angles of every triangle add up to 180º, we know that:

$2x+20+2x=180-40\\ 4x=180-40-20\\ 4x=180-60\\ 4x=120\\ x=\frac{120}{4}$

x=30º

Plug that in for x on both angles, and you will get

∠CAB=60°

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6 0

3 years ago

Solve the inequality: -40 < 2(a + 12).

ioda

Answer:

a> -32

Step-by-step explanation:

-40 < 2(a +12)

-40 < 2(a) +2(12) (expand)

-40 < 2a +24

-40 -24 < 2a (bring constant to one side)

-64 < 2a (simplify)

2a > -64

a > -64 ÷2

a > -32

7 0

3 years ago

Combine the like terms to create an equivalent expression: -2x-x+8

lara31 [8.8K]

Answer:

-3x+8

Step-by-step explanation:

-2x-x+8=

-3x+8

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3 years ago

You deposit $400 each month into an account earning 3% interest compounded monthly.

son4ous [18]

3% means 1.03 per year

multiplier 1.03

After 30 years

400 x[ (1.03) 30 times] = $970.91

3 0

3 years ago