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Anastasy [175]
3 years ago
15

The week before Jack spend 19 1/4 hours doing homework.how long did Jill spend doing homework

Mathematics
2 answers:
nlexa [21]3 years ago
5 0
Jill spent 19 1/4 hours doing homework last week.
Vsevolod [243]3 years ago
3 0
19 1/4 hours doing homework Jill did
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How many solutions does the following linear equation have?<br> y = -2x -4<br> y = 1/2x - 5
Andrews [41]

Answer:

x=2/5, y=-24/5. (2/5, -24/5).

Step-by-step explanation:

y=-2x-4

y=1/2x-5

----------------

-2x-4=1/2x-5

-2x-1/2x-4=-5

-4/2x-1/2x=-5+4

-5/2x=-1

5/2x=1

x=1/(5/2)

x=2/5

y=1/2(2/5)-5

y=1/5-5

y=1/5-25/5

y=-24/5

5 0
3 years ago
(X+2y)(x-2y) how do I solve this
Fudgin [204]

Step-by-step explanation:

(x+2y)(x-2y)

  • x^2-2xy+2xy-(2y)^2
  • x^2-4y^2

5 0
3 years ago
I need help im confuse
Romashka [77]

Answer:

B. 12b \leq 17

Step-by-step explanation:

< means less than

> means greater than

\leq means less than or equal to

\geq means greater than or equal to.

hope this helps.

4 0
3 years ago
Debbie is running to raise money for a fundraiser. If her goal is to run 56 miles , how many days will debbie need to run if she
Nina [5.8K]

Answer:

32 days.

Step-by-step explanation:

56 / 1.75 = 56 / (7/4) = 56 * 4 / 7 = 32.

3 0
3 years ago
Round 832 to the nearest hundreds place.
elena-s [515]

Answer:

800

Step-by-step explanation:

Look at the tens if it's 0-4 keep the number the same if 5-9 go up one number

6 0
3 years ago
Read 2 more answers
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