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nordsb [41]
3 years ago
12

What is H in the algebraic expression H+340÷30=25

Mathematics
1 answer:
disa [49]3 years ago
7 0

Answer:

H = 13.67

Step-by-step explanation:

Given:

The the algebraic expression is

H + \frac{340}{30} = 25

We need to write the above equation for h.

Solution:

H + \frac{340}{30} = 25

First we divide the fraction part of the equation by common factor 10.

H + \frac{34}{3} = 25

Subtract both side of the equation by \frac{34}{3}.

H + \frac{34}{3}-\frac{34}{3} = 25- \frac{34}{3}

H = 25- \frac{34}{3}

To write  25  as a fraction with a common denominator, multiply by \frac{3}{3}.

H = 25\times \frac{3}{3}- \frac{34}{3}

H = \frac{25\times3}{3}- \frac{34}{3}

H = \frac{75}{3}- \frac{34}{3}

H = \frac{75-34}{3}

H = \frac{41}{3}

H = 13.67

Therefore the value of H is 13.67.

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7 0
3 years ago
Two families went to the event. The first family bought two children's tickets and one adult ticket and paid a total of 8.2 euro
blagie [28]

Answer:

Step-by-step explanation:

step a system of two equations         c = child ticket     a = adult ticket

eq 1)  2c + 1a = 8.2            multiply by 2

eq 2) 3c + 2a = 14.1

I will multiply eq 1 times TWO and subtract eq 2 from eq 1a)

         eq 1a)  4c + 2a = 16.4

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subtract  (4c - 3c) + (2a -2a)  = 16.4 - 14.1  

                    c      +       0       =   2.3 euros     for one child ticket

Now find the adult ticket price,  plug 2.3 for c into eq 1)

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     eq 1)  2(2.3) + 1a = 8.2         solve for a

                 4.6  + a   =  8.2         substract 4.6 from both sides

                             a =  8.2 - 4.6

                               =   3.6 euros    for one adult ticket

double check using eq 2)    we know c and a values

    eq 2)  3c + 2a = 14.1

    eq 2)  3(2.3) + 2(3.6) = 14.1

                   6.9 + 7.2    =  14.1

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5 0
3 years ago
5. The rectangular pool has an area of 520 square feet. The length of 3
erastovalidia [21]

Answer:

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Step-by-step explanation:

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Length:  L = W + 3, or W = L - 3

Area = L*W = L*(L - 3) = 520

Equation b) is the correct one:  z*(z - 3) = 520

4 0
3 years ago
Stephen makes wooden shelves for his room he starts with a board that is 20 feet long.Stephen wants to make the shelves 3/4 foot
jek_recluse [69]

The number of shelves stephen can make is approximately 27

<h3><u>Solution:</u></h3>

Given that Stephen makes wooden shelves for his room

Stephen wants to make the shelves 3/4 foot long

He starts with a board that is 20 feet long

To find: number of shelves he can make

So the number of shelves stephen can make can make is found out by dividing 20 feet long board by 3/4 foot long

\text {number of shelves }=\frac{\text { total length of board stephen has }}{\text { length of each board }}

\text {number of shelves }=\frac{20}{3 / 4}=\frac{20}{0.75}=26.6

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Mariana [72]
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This is as simplified as I can get and then just place 12 + 4y into every x in the original problem then solve

8 0
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