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Lina20 [59]
3 years ago
15

Write the equation for the area of a triangle with a height that is 5 more than twice its base using one variable. Please help m

ee this is my last question
Mathematics
1 answer:
zysi [14]3 years ago
7 0

Answer:

A=b(b+\frac{5}{2} )

Step-by-step explanation:

hey there!!!

we know already that the area of a triangle is given as

A=\frac{1}{2}b *h

where b= base

and h= heigth

Given that the height is 5 times more than twice it base

let h= 2b+5

Now we substitute h=2b+5 in the area of the triangle

A=\frac{1}{2}b * (2b+5)

A= \frac{2b^2}{2} +\frac{5b}{2}

A= b^2+\frac{5b}{2}\\\\A=b(b+\frac{5}{2} )

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1 4/8 in a improper fraction?
stiv31 [10]
<h2>Answer:\frac{3}{2}<u><em></em></u></h2>

Step-by-step explanation:

Step 1: Multiply the whole number part (1) by the denominator (8).

1 × 8 = 8

Step 2: Add the product from Step 1 (8) to the numerator (4).

8 + 4 = 12

Step 3: Write that result (12) above the denominator. So,

\frac4{8}{1}

Step 4: The fraction \frac{12}{8}

Can be reduced by dividing both numerator and denominator by the GCD(12,8) = 4. Thus,

\frac1{4}{8} =\frac{3}{2}

8 0
3 years ago
Liam buys a rosebush during the sale. If the original price was $30, how much does Liam pay?
kobusy [5.1K]

Answer:

Liam pays $24

Step-by-step explanation:

20% off = 20÷100= 1/5

1/5 × $30 = $6

$30 - $6 =$24

3 0
3 years ago
Which expression is equivalent to (-4y - x) - (3y - 9x)
WINSTONCH [101]

Answer: -7y+8x

Step-by-step explanation: I assume you mean to simplify

Step 1: Remove parentheses : -4y - x - (3y - 9x)

Step 2: -(3y - 9x) = -3y + 9x

Step 3: Simplify: -4y - x - 3y +9x

Step 4: Answer: -7y+8x

4 0
3 years ago
In the equation 3s +135= 4.5 (s +10) what is s
Lubov Fominskaja [6]
3s + 135 = 4.5s + 45

Now move the variables and coefficients

135 = 1.5s + 45

And then the numbers

90 = 1.5s

Simplify

90/1.5 = 1.5s/1.5

60 = s

Hope this helps!
6 0
2 years ago
Twenty people are going by van to a movie. Each van seats 8 people. How many vans are needed to take everyone?
serg [7]
Yes,you are correct. 
The first van carries 8 people.
The second van carries 8 people. 
The 3rd van carries the remaining 4 people. 
8+8+4=20
7 0
3 years ago
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