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Tema [17]
2 years ago
10

3. The width of a rectangle is 3x – 7. The length of the rectangle is 4x +5.

Mathematics
1 answer:
garri49 [273]2 years ago
3 0

Answer:

D. 14x - 4

Step-by-step explanation:

P = 2(L + W)

P = 2(4x + 5 + 3x - 7)

P = 2(7x - 2)

P = 14x - 4

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A retailer sold an electric item to a customer at a loss of 10 percent the customer purchase it for rs 25425 including 13, perce
Mashutka [201]

Answer: Rs 25,000

Step-by-step explanation:

Given

Retailer sold an electric iron to a customer at a loss of 10%

Suppose the Cost price of iron is x

So, selling price is 0.9x

This price must be equal to 25425+ VAT

\Rightarrow 0.9x=25425-0.13(0.9x)\\\Rightarrow 0.9x+0.117x=25425\\\Rightarrow 1.017x=25425\\\Rightarrow x=\text{Rs }25,000

Thus, the cost price is Rs.25,000

5 0
2 years ago
Darrius bought 3 gallons of ice cream for $9.50 how much will it cost him if he wants 7 gallons?
Charra [1.4K]

Answer:

Its going to cost him 22.167

Step-by-step explanation:

Divide $9.50 by 3 = 3.167

multiply it by 7= 22.167

3 0
3 years ago
Graph the function represented in the table on the coordinate plane.
Umnica [9.8K]
First find out the function for the given table.
Find the slope.
m= (y2-y1)/(x2-x1)
m=(-1-(-3)) / (-1-(-2))
m=(-1+3) / (-1+2)
m=2/1
m=2
Now equation of line:
y-y1=m(x-x1)
y-(-3)=2(x-(-2))
y+3=2(x+2)
y+3=2x+4
y=2x+1
Now plot these points on the graph, we get the attached graph.

7 0
2 years ago
Read 2 more answers
The following picture is a square pyramid where DE=8 cm and m∠ADE=60°.
mr_godi [17]

Answer:

131 cm

Step-by-step explanation:

formula for surface area of pyramid is

S = (1/3)Bh

but the base ia a square, so B = x^{2}

S = (1/3)x^{2} h

the pic shows h = 8

but we don't know x

do SohCahToa

sin60 = x/8

x = 8sin60

x = 6.92820323 or 7

plug in numbers

S = (1/3)7^{2}8

S = 392/3

S = 130.6666667 or 131 cm

5 0
2 years ago
Right answer gets brainliest, again..
Alecsey [184]

Answer:

Answer number c (0.3 liters per hour is the average rate)

Step-by-step explanation:

5 0
2 years ago
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