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lions [1.4K]
3 years ago
12

Please help me with these!!

Mathematics
1 answer:
Sholpan [36]3 years ago
6 0

Answer:

Physics: 40℅

Chemistry: 20℅

Other: 90℅.

Hope you like my answer.

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Venus and Serena measured a tennis court and found that it was 42ft longer than it was wide and had a perimeter of 228ft. What w
mr_godi [17]

Answer:

length = 78 feet

width = 36 feet

Step-by-step explanation:

Using one variable and an expression, you can set up an equation equal to the perimeter to find the measure of each side:

width = 'w'

length = '42ft longer than it was wide' = w + 42

The general formula for the perimeter of a rectangle:

P = 2w + 2l

Plugging in the given values and variables:

228 = 2w + 2(w + 42)

Distribute: 228 = 2w + 2w + 84

Combine like terms:  144 = 4w

Divide and solve:  36 = w

w = 36 ft

l = 36 + 42 = 78 ft

8 0
3 years ago
Find the distance between <br><br> (4,3) and (0,3).<br> A) 10 <br> B) 2 <br> C) 2<br> 13<br> D) 4
Daniel [21]

Answer:

D

Step-by-step explanation:

4 units

4 0
3 years ago
Is this statement true or false 5/12 = 2/6
AveGali [126]

Answer:

False

Step-by-step explanation:

6*2= 12

So to get common denominators, you would need to divide 5/12 by 2 OF multiply 2/6 by 2

For the sake of ease just multiply 2/6 by 2, this will equal 4/12 NOT 5/12

Hope this helps! :)

6 0
3 years ago
Group Sales Math Quiz
Andre45 [30]

Answer:

okay let's start

Step-by-step explanation:

3\% =  \frac{3}{100}  \\  = 0.03 \\ total \: sales \:  = 150000 \\ 0.03 \times 150000 = 4500 \\ \: for \: a \: month \\ therefore \: for \: a \: year \\ 4500 \times 12 = 54000 \\  \\ the \: answer \: is \: d

4 0
2 years ago
Kwan hiked up a hill at 4 km/h and back down at 6 km/h. His total hiking time was 3 hours. How long did the trip up the hill tak
Leya [2.2K]

Let the time to hike up the hill  = t

As given that the total time time up and down is 3 hrs,  therefore

The time down the hill = 3-t

The distance up and down is the same.

Distance = speed * time

4t=6(3-t)

4t=18-6t

10t=18

t=1.8

Hence, time taken to uphill = 1.8 hours

Time taken to down hill = 3-18 = 1.2 hours

3 0
3 years ago
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