3 years ago

What is x? 4(x+2)=4(x+2)

Mathematics

1 answer:

Butoxors [25]3 years ago

4 0

It's the identity equation so $x\in\mathbb{R}$

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If AB=20, then AB+CD=?

Leona [35]

Answer:

20*20+CD=400+CD

Step-by-step explanation:

Multiply

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3 years ago

Martin bikes at a constant speed to a finish line that is 15 mi away. After 20 mins, he is 10 mi from the finish line. After 30

ankoles [38]

The answer is C. -0.25; the rate at which Martin's distance from the finish line changes per minute

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3 years ago

John is driving around town. When he reaches the gas station, he notes that he has traveled 20 miles. He reaches home 2 hours la

Troyanec [42]

Answer:

$d=5t+20$

Step-by-step explanation:

The equation that will model this situation will be of the form

$d=mt+b$

where $t$ is the time in hours john has traveled since the gas station, and $d$ is the distance.

Now we know that John has already traveled 20 miles when he is at the gas station, this means at $t=0$ , $d=20$ ; or

$20=m(0)+b$

$\boxed{b=20}$

Thus we have

$d=mt+20$ .

Now we need to figure out $m.$

When John reaches home 2 hours later he notes that he has traveled 30 miles, which means he has traveled 30 - 20 = 10 miles; thus we have

$m= \frac{\Delta d}{\Delta t} =\frac{10 miles}{2hours} =5$

$\boxed{m=5}$

Now we have the full equation:

$\boxed{d=5t+20}$

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3 years ago

Monica is a lawyer who earns $8,322.65 every month. She spends $830.98 on rent, $210.36 on food, and $120.45 on gas every month.

Step2247 [10]

She would have $7160.86 left over in cash here's why.....
she starts off with $8,322.65 and spends $830.98 on rent $8,322.65-$830.98= $7,491.67
then spends $210.36 on food and another $120.45 on gas
$7,491.67-$210.36= $7,281.31 - $120.45= $7,160.86 <---- Left over $

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3 years ago

Need help with this problem!! Point X is the midpoint of HI. What is the coordinate of the point X?

dimaraw [331]

Answer:

Step-by-step explanation:

The midpoint is the average of the points H and I

midpoint = | $\frac{-2+4}{2}$ | = | $\frac{2}{2}$ | = | 1 | = 1

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3 years ago