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Pachacha [2.7K]
2 years ago
12

Jake and his brother, Rob, built triangular kites for the Beach Cities Kite Festival and covered them with fabric. Jake's kite i

s 5.5 feet long and 6 feet tall. Rob's kite is 3.5 feet long and 4 feet tall. The fabric they used costs $2.50 per square foot.
How much more money did Jake spend on fabric than Rob?
Mathematics
1 answer:
yaroslaw [1]2 years ago
6 0

Answer:

$23.75

Step-by-step explanation:

Ok, first, To solve the problem, we need the amount of square feet of each kite.

To calculate area of triangles, you multiply base with height, then divide by two. (bh/2)

Jake's kite is 5.5 feet long, and 6 feet tall, so we plug this into the equation to get: (5.5 · 6)/2

we simplify to get 33/2 = 16.5 square feet.

Then to get the total cost, we multiply 16.5 with 2.50 to get $41.25, which is the cost of Jake's kite.

Now, we do the same with Rob's kite. (3.5*4)/2 = 14/2 = 7, then multiply by 2.5 to get 7 * 2.5 = $17.5, and that's the cost of Rob's kite.

To get the final answer, we subtract 41.25 to 17.5, which is $23.75

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If a person drives his car in the speed 50 miles per hour, how far can he cover the distance in 2.5 hours ?
ad-work [718]

Answer:

Hey there!

50 miles = 1 hour

x miles = 2.5 hours

50/1= x/2.5

x=2.5x50

x=125

The car can go 125 miles.

Hope this helps :)

4 0
4 years ago
Read 2 more answers
Solve for a. a+45=1 1/2
Artemon [7]

Answer:

a=-79/2=-391/2=-39.5

Step-by-step explanation:

a+45=11/2 subtract 45 from both sides

a=11/2-45 convert 45 to fraction 90/2

a=11-90/2 subtract 90 from 11 to get -79

7 0
3 years ago
Bobby’s uncle gave him 300 baseball cards. Each week, Bobby purchases 40 baseball cards to add to his collection.
sertanlavr [38]

Answer:

300 + 40w => 300

Step-by-step explanation:

4 0
4 years ago
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Pablo bought a desktop computer and a laptop computer. Before finance charges, the laptop cost $250 more than the desktop. He pa
olga55 [171]
A = price of the desktop

b = price of the laptop

now, we know the laptop was more expensive than the desktop by 250 bucks, thus b = a + 250.

for "a", he paid 8.5% in interest, for "b", he paid 5% in interest.

how much is 8.5% of a?  well (8.5/100) * a, or 0.085a.

how much is 5% of b?  well, (5/100) * b, or 0.05b.

now, we know the total charges for financing were $296, that means the interest paid in total was 296, thus whatever "a" or "b" are, we know that  0.085a + 0.05b = 296.

\bf \begin{cases}
\boxed{b}=a+250\\
0.085a+0.05b=296\\
----------\\
0.085a+0.05\left( \boxed{a+250} \right)=296
\end{cases}
\\\\\\
0.085a+0.05a+12.5=296\implies 0.135a=283.5
\\\\\\
a=\cfrac{283.5}{0.135}\implies a=2100

how much did the laptop cost?  well, b = a + 250.
7 0
3 years ago
45/14 as a decimal rounded to the nearest 10th
ozzi

Answer:

3.2

Step-by-step explanation:

3.21428571429 is the exact answer and rounded to the nearest tenth is the first number after the decimal.

4 0
3 years ago
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