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Debora [2.8K]
3 years ago
11

Solve: 3 +1 − 3 = 54.​

Mathematics
1 answer:
AURORKA [14]3 years ago
7 0
You’re missing the X variable
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Please help .-.<br> No absurd answers
VARVARA [1.3K]

Answer:

64 ft²

Step-by-step explanation:

10 ft · 10 ft

100 ft²

A=\frac{bh}{2}

6 · 6 = 36

36 ÷ 2 = 18

18 ft² + 18 ft² = 36 ft²

100 ft² - 36 ft²

64 ft²

8 0
3 years ago
Read 2 more answers
Help me pleeeeeeease
Dimas [21]

Answer:

64

Step-by-step explanation:

4 times 4 times 4 =64

7 0
3 years ago
Read 2 more answers
An eastbound train left at 12pm. Four hours later, a westbound train left the same station. At 8pm, the two trains were 400 mile
Ainat [17]

Answer:

Step-by-step explanation:

Gotta love these motion problems!  

d = rt is what we need here to solve this, along with some logic.  

If the EB (eastbound) train left at noon then at the end of its travels, at 8pm to be specific, it was traveling for 8 hours.  Therefore, for the EB train, t = 8.

If the WB train left at 4 pm then at the end of its travels, also at 8pm, it was traveling for 4 hours.  Therefore, for the WB train, t = 4.

The distance between the trains is given as 400 miles.  That 400 mile distance is due to the fact that each train traveled a distance of rate*time.  The distance the WB train traveled + the distance the EB train traveled = 400 miles.  Now we just need to find out the distance each traveled in its respective time frame.  

For the EB train.  We already know that t = 8.  We do not know how fast it's going, so rate is just r.  In the distance formula, d = rt:

d_{EB}=8r

For the WB train.  We already know that t = 4.  We do not know this rate either, but we do know that it is traveling 10 mph faster than the EB train, so rate is r + 10.  In the distance formula, d = rt:

d_{WB}=4(r+10)  and

d_{WB}=4r+40  

We have already determined that

d_{EB}+d_{WB}=400 so

4r + 40 + 8r = 400 and

12r + 40 = 400 and

12r = 360 so

r = 30

That means that the EB train is traveling 30 mph and the WB train then has to be traveling 40 mph.

These are quite difficult...I get it.  They drive all my students, regardless of what math level they are in, absolutely batty!!!

5 0
3 years ago
Read 2 more answers
Hector took out a small loan of $900 for 18 months (remember to turn this into
Evgesh-ka [11]

Answer:

$141.75

Step-by-step explanation:

(900)(-105) (13/12) or 1.5

4 0
3 years ago
Find the missing value so that the two points have a slope of 3/2 (0,y) and (2,-2)
Harlamova29_29 [7]

Answer:

y = -5

Step-by-step explanation:

To find the slope , we use

m = (y2-y1)/(x2-x1)

3/2 = (-2-y)/(2-0)

3/2 = (-2-y)/2

Since the denominators are the same, the numerators have to be the same

3 = -2-y

Add 2 to each side

3+2 = -2-y+2

5 = -y

Divide each side by -1

5/-1 = -y/-1

-5 = y

8 0
3 years ago
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