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Nitella [24]
3 years ago
15

1/2*40=2x+8 what is the answer

Mathematics
2 answers:
UkoKoshka [18]3 years ago
6 0
1/2 × 40 = 2x + 8
⇔ 20 = 2x + 8 
⇔ 12 = 2x
⇔  x = 6

nignag [31]3 years ago
4 0
1/2 *40=2x +8
1/2*40 -8=2x
12=2x
12÷2=2x÷2
therefore x = 6
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Troy has a price chart below for various ingredients he needs to order for his sandwich bar. Sandwich Ingredients Item Cost (per
shepuryov [24]

Answer:

$93.75

Step-by-step explanation:

The computation of the total cost of order is shown below:

The Cost of 8 pounds of Pepperoni is

=  8 × $3.15

= 25.2

The Cost of 15 pounds of cheese is

= 15 × $1.85

= $27.75

The Cost of 12 pounds of sausage is

= 12 × $3.40

= $40.8

So, The total cost is

= $25.2 + 27.75 + $40.80

= $93.75

4 0
3 years ago
A wallet contains $460 in $5, $10, and $20 bills. The number of $5 bills exceeds twice the number of $10 bills by 4, and the num
Butoxors [25]

Answer:

Number of $5 bills = 32

Number of $10 bills = 14

Number of $20 bills = 8

Step-by-step explanation:

Let x number of $5, y number of $10 and z number of $20

The number of $5 bills exceeds twice the number of $10 bills by 4.

Therefore, x = 2y + 4

The number of $20 bills is 6 fewer than the number of $10 bills.

Therefore, z = y - 6

A wallet contains $460 in $5, $10, and $20 bills.

Therefore,

5x + 10y + 20z = 460

Substitute x and y into equation

    5(2y+4) + 10y + 20(y-6) = 460

10y + 20 + 10y + 20y - 120 = 460

                           40y - 100 = 460

                                    40y = 460 + 100

                                    40y = 560

                                      y = 14

  • Put the value of y into x = 2y + 4 and solve for x

                                      x = 2(14) + 4

                                      x = 32

  • Put the value of y into z = y - 6 and solve for z

                                      z = 14 - 6

                                      z = 8

Hence, the each type of bills,

Number of $5 bills = 32

Number of $10 bills = 14

Number of $20 bills = 8

3 0
3 years ago
Read 2 more answers
the wireless cafe charges $5.40 for 45 minutes of internet access. how much money doe the wireless cafe charge per minute
ki77a [65]
5.40 divided by 45 = 0.12

The cafe charges 12 cents per minute.
8 0
3 years ago
Thomas walks his dog for 25 minutes today, 5 more minutes than yesterday. Express as a percent his walking time today compared t
Irina-Kira [14]

Answer:

A: 125%

Step-by-step explanation:

if thomas had walked his dog for 25 minutes today, and he walked an extra 5 minutes compared to yesterday, then that would mean he walked his dog 25% more than yesterday (yesterday being 100%) so therefore it would be 125%

5 0
3 years ago
Read 2 more answers
The area of this rhombus is 1 square millimeter. One of its diagonals is 1 millimeter.
pshichka [43]

Answer:

2

Step-by-step explanation:

can make rectangle and find area 1x/2=1 x=2

8 0
2 years ago
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