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2 years ago

A student ran a distance of miles each day for 5 days. Then the student ran a distance of 44 miles each day for the next 5 days.

Mathematics

1 answer:

Law Incorporation [45]2 years ago

3 0

Answer:

its 38 3/4

Step-by-step explanation:

d₂ = distance covered each day in the next 5 days From the question, Given: d₁ = 3 miles = 7/2 miles T = 5 Days d₂ = 4 miles = 17/4 miles Substitute these values into equation 1 D = [ (7/2)×5]+ [ (17/4)×5] D = 17.5+21.25 D = 38.75 miles

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If f(x)=3x-12 what is f(-2)

LiRa [457]

Step-by-step explanation:

f(-2) = 3(-2) - 12

→ -6 - 12 = -18 ans.

hope this helps you !

7 0

3 years ago

You have $32 to spend at the music store. Each cassette tape costs $5 and each cd costs $9. Write a linea inequality that repres

forsale [732]

Answer:

5x+9y≤32

Step-by-step explanation:

Let x be the number of cassette tapes you purchase.

Let y be the number of CDs you purchase.

The problem is you only have $32 to spend.

Different combinations of tapes and CDs are possible. We want an equation showing this relationship.

One cassette tape costs $5. The cost for any number of cassette tapes is $5 times the number

purchased; that's 5 times x, or 5x.

To find the cost of CDs purchased, we multiply $9 times the number of CDs, $9 times y or 9y.

The cost of the total purchase is

[the cost of the cassettes] + [the cost of the CDs] or

5x + 9y

Hope this helps!!

8 0

3 years ago

Read 2 more answers

Please help i will mark brainliest

WINSTONCH [101]

Answer:B

Step-by-step explanation:

3.1x10^9 is putting 9 zero’s behind the 3.1

move the decimal point over 9 spaces which will leave you with 3,100,000,000

= 3.1 Billion

5 0

3 years ago

Read 2 more answers

Briana has 4 1/2 cups of oats. She uses 2 1/4 cups of oats to make oatmeal- raisins cookies, then borrow 1 cup of oats from her

insens350 [35]

Answer:

She has enough with $\frac{3}{4}$ cups left over.

Step-by-step explanation:

For this equation, it's probably easiest to use improper fractions.

At the start, she has 4 $\frac{1}{2}$ cups, or $\frac{9}{2}$ , which can be converted to $\frac{18}{4}$ (which is useful for the next part) by multiplying the numerator and denominator by 2.

When she uses 2 $\frac{1}{4}$ cups, which can be converted to $\frac{9}{4}$ . When subtracting this from the original, you get $\frac{18}{4}$ - $\frac{9}{4}$ = $\frac{9}{4}$ .

She borrows another cup, or $\frac{4}{4}$ of a cup, which gets added on to the previous result, giving $\frac{9}{4}$ + $\frac{4}{4}$ = $\frac{13}{4}$ .

The recipe calls for 2 $\frac{1}{2}$ cups, which can be converted to $\frac{5}{2}$ or $\frac{10}{4}$ .

$\frac{13}{4}$ - $\frac{10}{4}$ = $\frac{3}{4}$ , meaning she has $\frac{3}{4}$ cups left over.

** solving this mainly uses conversion to improper fractions and adding/subtracting fractions, which may be skills you would like to practice. I'm always happy to help!

6 0

3 years ago

A submarine dove at a rate of 18 feet per minute. What was the depth of the submarine after 15 minutes?

Juliette [100K]

So you’re basically multiplying 18 and 15. It’s going to be 270 ft

7 0

3 years ago