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Liula [17]
3 years ago
15

Jessie read 1/3 of a book in the morning, and she read some more at night. By the end of the day, she still had 1/5 of the book

left to read. How much of the book did Jessie read at night?
Mathematics
2 answers:
Mrac [35]3 years ago
6 0
7/15 She read 7/15 at night
PilotLPTM [1.2K]3 years ago
5 0

Answer:

7/15

Step-by-step explanation:

I converted 1/3 into 5/15

Then I converted 1/5 into 3/15

I added 5/15 and 3/15 and got 8/15

Then I subtracted 15/15-8/15=7/15.

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Juan wishes to build a garden at the bottom of his property. He wants to split it in two, like the diagram below, so he can plan
SCORPION-xisa [38]

Answer:

20 ft by 60 ft

Step-by-step explanation:

"What should the dimensions of the garden be to maximize this area?"

If y is the length of the garden, parallel to the stream, and x is the width of the garden, then the amount of fencing is:

120 = 3x + y

And the area is:

A = xy

Use substitution:

A = x (120 − 3x)

A = -3x² + 120x

This is a downward facing parabola.  The maximum is at the vertex, which we can find using x = -b/(2a).

x = -120 / (2 · -3)

x = 20

When x = 20, y = 60.  So the garden should be 20 ft by 60 ft.

4 0
3 years ago
Brian plays a video game in which he starts at 0 points. In round 1, he
irakobra [83]
If your numbers are 4 1/2 and 2 1/2, then at the end of round 2 brian would have lost 7 points in total
4 0
3 years ago
Whts X+y x 9 +3 +4 ?
babunello [35]

Expression simplified: x+9y+7

Step-by-step explanation:

The expression that we have in this problem is:

x+y\cdot 9 +3 +4

The first type of operation that we have to solve in such expression are multiplication/division.

In this expression, there is only one multiplication, that is:

y\cdot 9 = 9y

So we can rewrite the expression as

x+9y+3+4

Now we can evaluate the sum of the similar terms: in this case, similar terms are only 3 and 4, and their sum is

3+4=7

Therefore, the expression can be rewritten as

x+9y+7

Learn more about simplifying expressions:

brainly.com/question/7014769

brainly.com/question/11007572

brainly.com/question/11334714

#LearnwithBrainly

6 0
3 years ago
I need help, someone help me, please
lara [203]

Answer:

(a): 46 degrees

(b): 63 degrees

(c): 27 degrees

(d): 60 degrees

Step-by-step explanation:

6 0
3 years ago
4x + 8y=20<br> 3x+6y=15<br> solve this system of equations
laila [671]
4x=20-8y

x=5-2y now use this value of x in the second equation...

3(5-2y)+6y=15

15-6y+6y=15

15=15  This is true for any y or x value.

So there are infinitely many solutions as the two equations describe the same line.
5 0
3 years ago
Read 2 more answers
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