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3 years ago

Find the values of x and y 0.50x+0.20y=3.90

Mathematics

2 answers:

Alla [95]3 years ago

8 0

Hope this helps.

Good luck mate :P

murzikaleks [220]3 years ago

7 0

There are a few different values:

$\left \{ {{y=2, 7, 12, 17 } \atop {x=7, 5, 3, 1}} \right.$

As a warning, I may have formatted this incorrectly, but I hope this helped anyways. A way of writing it that I'm more familiar with would be:

(2, 7), (7, 5), (12, 3), (17, 1)

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2 years ago

Sherrod and Kamar are planning to drive at most 900 miles road trip. Sherrod drives at 60 miles per hour, and Kamar at 50 miles

Allushta [10]

The inequality gives the total expected journey from the road trip, such that the time during which Sherrod and Kamar drives is known.

a. The inequality that represents the miles that Sherrod and Kamar drives is; x + y ≤ 900

b. Two possible combination of x and y are; (600, 300) and (300, 600)

Reasons:

a. The distance distance Sherrod and Kamar plan to drive ≤ 900 miles

Sherrod's speed = 60 mph

Kamar's speed = 50 mph

The distance Sherrod drives = x

The distance Kamar drives = y

a. The miles driven by Sherrod and Kamar is given by the inequality;

x + y ≤ 900

b. Two possible combinations are;

First possible combination;

Sherrod drives for 10 hours, which gives;

Distance Sherrod drives = 60 mph × 10 hour = 600 miles

Kamar drives for 900 miles - 600 miles = 300 miles

Which gives;

Sherrod drives for 600 miles and Kamar drives for 300 miles

First combination; (600, 300)

Second possible combination;

The second possible combination is Sherrod drives for 300 miles and Kamar drives for 600 miles

Second combination; (300, 600)

Learn more about inequalities here:

brainly.com/question/22976364

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3 years ago