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3 years ago

So llike a lil bit of help here?????

Mathematics

1 answer:

dimulka [17.4K]3 years ago

5 0

Answer:

they saved the same amount of money each month

Step-by-step explanation:

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I need help with this asap please

gtnhenbr [62]

Answer:

Step-by-step explanation:

Total amount of faces of object = 6

Surface area = length x height

2(4*10) + 2(10*17) + 2(4*17)

=2(40) + 2(170) + 2(68)

= 80 + 340 + 136

= 556cm^2

7 0

3 years ago

Answer the photo below thanks

Nadya [2.5K]

Answer:

Step-by-step explanation:

duxuejdbdhwuskisisiei

4 0

3 years ago

Loren drove 200 miles at a certain rate, and his wife, Lois, drove 100 miles at a rate 10 mph slower. If Loren had driven for th

NeX [460]

As long as Loren drove, the law of motion was

$200 = st_1 \implies t_1 = \dfrac{200}{s}$

As long as Loid drove, the law of motion was

$100 = (s-10)t_2 \implies t_2 = \dfrac{100}{s-10}$

So, the total time they took is

$t_1+t_2=\dfrac{200}{s}+\dfrac{100}{s-10}$

Had Loren driven the whole time, the law of motion would have been

$300=st_3 \implies t_3 = \dfrac{300}{s}$

And we know that this time would have been 30 minutes (i.e. 0.5 hours) faster. So, we have

$t_3 = t_1+t_2-0.5$

This translates into

$\dfrac{300}{s}=\dfrac{200}{s}+\dfrac{100}{s-10}-\dfrac{1}{2}$

If we subtract 200/s from both sides, we have

$\dfrac{100}{s}=\dfrac{100}{s-10}-\dfrac{1}{2}$

We can simplify the right hand side by summing the two fractions:

$\dfrac{100}{s-10}-\dfrac{1}{2} = \dfrac{200-(s-10)}{2(s-10)}=\dfrac{210-s}{2(s-10)}$

So, we have to solve

$\dfrac{100}{s}=\dfrac{210-s}{2(s-10)}$

If we cross multiply the denominators, we have

$200(s-10)=s(210-s) \iff 200s-2000=210s-s^2 \iff s^2-10s-2000=0$

Which yields the solutions

$s=-40,\quad s=50$

We accept the positive solution, because the negative would mean to travel backwards, so Loren's rate was 50mph

5 0

3 years ago

Read 2 more answers

What is the rate and unit rate of 40 m in 16 seconds

Dovator [93]

40/16 or 2.5 meters per second.... Sorry I'm probably way too late

5 0

3 years ago

Height is a proportional to foot length. A person whose foot length is 10 inches is 67 inches tall. A human-like creature has a

padilas [110]

Your answer would be
<span>h/f = k constant
67/10 = k = 6.7
H/21 = 6.7
H = 6.7 × 21 = 140.7 </span>

8 0

3 years ago