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stealth61 [152]
3 years ago
14

David worked seven hours and earned $117.25. If he earned $670, how many hours did he work?

Mathematics
2 answers:
arsen [322]3 years ago
4 0

I believe the answer is 78557.5 hours

sertanlavr [38]3 years ago
3 0

Answer:

40 hours

Step-by-step explanation:

$117.25 / 7 hours = $16.75 an hour

$670 / $16.75 = 40 hours

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Farmer McKinney has a plot of tomato plants. There are 5 tomato plants in the first row, 6 tomato plants in the second row, 9 to
jok3333 [9.3K]
There will be 30 tomatoes in row six. Let me know if i'm right.
3 0
3 years ago
The cost for 15 cases of oranges is $75. What is the cost for 1 case? *
postnew [5]

Answer:Ok I This question can be solved using a system of equation, which requires translating the above word problem into something that can be algebraically

Let O=oranges and  Let G=Grapefruit

5O +8G=235

3O + 2G=85

To solve, you must isolate one of the variables and then work from there. To do that multiply both sides of the bottom or second equation by four and then subtract the bottom equation from the top.

Which would look like this

5O +8G=235

12O + 8G= 340

Then subtract the bottom from the top to get this

-7O=-105

Solving for O we divide both sides by -7, and end up with O=15

Plugging that value back into one of our original equations to solve for G we get this

3(15) + 2G= 85

45 +2G=85

2G=40

G=20

So 1 case of each altogether would equal 15+20, or $35.

<h3>Hope this helps have a awesome night/day❤️✨</h3>

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
H is directly proportional to the square root of p h=5.4 when p=1.44 find h when p=2.89
bazaltina [42]

Answer:

h=7.65

Step-by-step explanation:

h=k√p

k=h/√p

k=5.4/√1.44

k=4.5

h=4.5√p

when p=2.89

h=4.5√2.89

h=7.65

5 0
3 years ago
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A regulat pentagon has side lenghts of 5.8cm and apothem of 4cm. calculate its perimeter and area​
Kryger [21]

PENTA = 5.

a regular polygon has all equal sides, so if one side is 5.8, all are, so the perimeter for this pentagon with 5 sides is 5.8 + 5.8 + 5.8 + 5.8 + 5.8 = 29.

\bf \textit{area of a regular polygon}\\\\ A=\cfrac{1}{2}ap~~ \begin{cases} p=perimeter\\ a=apothem\\ \cline{1-1} p=29\\ a=4 \end{cases}\implies A=\cfrac{1}{2}(4)(29)\implies A=58

6 0
3 years ago
Ming drew the model below to represent the equation 24 + 12 = blank x (8 + 4). A model with 3 rows of 8 and 3 rows of 4. What is
Mila [183]

Given:

The equation is:

24+12=\_\_\times (8+4)

A model with 3 rows of 8 and 3 rows of 4.

To find:

The missing value in Ming's equation.

Solution:

We have,

24+12=\_\_\times (8+4)           ...(i)

A model with 3 rows of 8 and 3 rows of 4. Using this information, we get

24+12=3\times 8+3\times 4

Taking out the common factor 3, we get

24+12=3\times (8+4)               ...(ii)

On comparing (i) and (ii), we get the missing value is 3.

Therefore, the missing value in Ming's equation is 3.

3 0
3 years ago
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