3 years ago

How to estimate 586-321 two different ways

1 answer:

6 0

You can either do it to the nearest ten or the nearest hundred

(nearest ten) 590 - 320 = 270

(nearest hundred) 600 - 300 = 300

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in complete sentences, explain the process in which this equation would be solved. “Mr Crenshaw can grade one set of papers in 1

hammer [34]

Answer:

6 minutes

Step-by-step explanation:

Mr Crenshaw checks at a rate of 1/10 and Mr. Aguirre checks at a rate of 1/15.

If they work together, they will be checking at a combined rate of:

1/10 + 1/15 = [3(1) + 2(1)]/30

= 5/30 = 1/6

Their combined rate is 1/6 which means they check one set in 6 minutes

3 0

3 years ago

A taxi service charges $5.50 for the first 1/5 of a mile, $1.50 for each additional 1/5 of a mile, and 20¢ per minute of waiting

nalin [4]

Answer:

$92.80

Step-by-step explanation:

$5.5+ $1.5 ((11.6*5)-1)+ $0.20*9

8 0

3 years ago

Solve using the elimination method x + 5y = 26 - X+ 7y = 22

S_A_V [24]

Answer:

$x=6\\y=4$

Step-by-step explanation:

Elimination method:

$x+5y=26$

$-x+7y=22$

Add these equations to eliminate x:

$12y=48$

Then solve $12y=48$ for y:

$12y=48$

$y=48/12$

$y=4$

Write down an original equation:

$x+5y=26$

Substitute 4 for y in $x+5y=26$ :

$x+5(4)=26$

$x+20=26$

$x=26-20$

$x=6$

{ $x=6$ and $y=4$ } ⇒ $(6,4)$

hope this helps...

5 0

3 years ago

Read 2 more answers

Draw a line representing the "run" and a line representing the "rise" of the line. State the slope of the line in simplest form.

AnnyKZ [126]

Answer:

-5/4

Step-by-step explanation:

See the attachment for rise and run lines. The slope is the ratio ...

slope = rise / run = -5/4

4 0

3 years ago

8. Ally bikes 4 5/8miles in 3/8 of an hour. What is the unit rate at which Ally is biking?

Katena32 [7]

Answer:12.33

Step-by-step explanation:

5 0

3 years ago