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FrozenT [24]
3 years ago
7

(20 POINTS!!!)

Mathematics
2 answers:
miss Akunina [59]3 years ago
8 0

Answer:

390

Step-by-step explanation:

First find the missing side of the top rectangle.

30 - 20 = 10

Now that you know 10 is the missing length, you can find the area for the top rectangle.

10 x 25 = 250

For the bottom rectangle do the same thing to find the area. (Length times Width) (L x W)

7 x 20 = 140

Now, add up both of the areas to find the complete area of the composite shape.

250 + 140 =390

fenix001 [56]3 years ago
4 0

Answer:

390 ft^2

Step-by-step explanation:

Lets make the shape into two rectangles

1st: 7 ft by 30 ft

Area = 7*30 = 210 ft^2

2nd: 25ft -7 ft = 18 ft  by 30ft -20ft = 10 ft

Area = 18 *10 = 180 ft

The total area is the sum of the two rectangles

210 + 180 = 390 ft^2

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A worker uses 450 inches of steel wire to make 300 springs of the same size. At this
rusak2 [61]

Answer: 1.5 inches of steel for one spring

Step-by-step explanation:  

I divided 450 by 300 which gets you to 1.5 next to check your answer you multiply that by 300 which gets you to 450

6 0
3 years ago
Can someone help me? ​
Oliga [24]
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5 0
2 years ago
The population of a town has approximately doubled every 17 years since 1950. If the equation P=Po2k, where Po is the population
natka813 [3]

The population of a town has approximately doubled every 17 years since 1950.

the equation P=P_02^k where Po is the population of the town in 1950, is used to model the population, P, of the town t years after 1950.

When t=17 yrs

   P=2p_{0}      

for 1 year

The equation becomes

P = P_02^\frac{t}{17}                               -------------(1)

Our original equation is

P=P_02^k----------------------------------(2)

equating expression 1  and 2

P_02^\frac{t}{17}=P_{0}2^k

Cancelling P_{0}  from both sides  we get

2^\frac{t}{17}=2^{k}

t/17=k

⇒k=t/17 is the solution.






4 0
3 years ago
write an equation in slope intercept form for a line through the following: through (5,2). with a slope of -2
Veseljchak [2.6K]

Answer:

y = - 2x + 12

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = - 2, thus

y = - 2x + c ← is the partial equation

To find c substitute (5, 2) into the partial equation

2 = - 10 + c ⇒ c = 2 + 10 = 12

y = - 2x + 12 ← equation of line

4 0
3 years ago
Your class is raising money for a field trip. Which graph could show the amount of money raised over time?
gogolik [260]

Answer:

Table, Formula

Step-by-step explanation:

4 0
3 years ago
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