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valentina_108 [34]
3 years ago
13

What is 1 2/5x =7 because i really need help​

Mathematics
1 answer:
astraxan [27]3 years ago
3 0

(1 2/5)(x)=7

Simplify both sides of the equation.

7/5x=7

Multiply both sides by 5/7.

(5/7)*(7/5x)=(5/7)*(7)

x=5

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NEED HELP ASAP PLEASE!!
shepuryov [24]

Answer:

5 5/6

Tell me if u got it right

5 0
4 years ago
The conversion factor relating miles to meters is 1mile=1610m. The speed of light is 3.00×108 m/s. How fast is this in miles per
nikklg [1K]
Converting from one units to another set of units, a conversion factor is needed. For this problem, the conversion factor would be 1 mile = 1610 m. We convert the value of <span>speed</span> of light from meters/second to miles/hour as follows:

3 x 10^8 m/s (1 mile / 1610 m) ( 60 s / 1 min ) ( 60 min / 1 hr ) = 6.71 x 10^8 miles / hr


7 0
4 years ago
Read 2 more answers
PLEEEASSSSEEEEE HELPPPP!!!! A rectangular prism has a length of 12 in., a width of 5 in., and a height of 4 1/4 in. The prism is
Aleonysh [2.5K]

Answer:

16320

solution: 12 / 1/4 = 3.

4 divided by 1/4 = 20

4 1/4 divided by 1/4 = 17.

3 x 20 x 17 =

the answer is 16320.

3 0
4 years ago
Can someone please help me and explain how you got you answer please
Pavel [41]

y=2x+1

(2x) is the slope because the slope is going up the slope will be positive and the (1) is the y intercept which means where the slope crosses the vertical line

3 0
3 years ago
Read 2 more answers
A group of 18 people ordered soup and sandwiches for lunch. Each person in the group either ordered one soup or one sandwich . T
kkurt [141]
Let's say a = number of ordered soups, b = number of ordered sandwiches.

Then 4.5a + 7.75b = 113.50, and a and b are integers between 0 and 18 inclusive.

How do we tackle this? If all ordered soup, the cost would be $81, so we'll have at least 4 sandwiches. If all ordered sandwich, the cost would be $139.5, so at most 15 sandwiches were ordered. You also know an even number of sandwiches was ordered, to let the price end at 50 cent.

If you brute-force from 4,6,8,10,12 to 14 sandwiches, you find the answer at 10 sandwiches and 8 soups.

10*7.75 + 8*4.50 = 113.50


8 0
4 years ago
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