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Bumek [7]
3 years ago
13

Jessi sold half her comic books. Then, she bought 9 more. She now has 11 total. How many did she begin with?

Mathematics
1 answer:
Alex Ar [27]3 years ago
6 0

Answer:X+9=11

9-9|11-9

X=2

Step-by-step explanation:When the beginning number is unknown we use “x” to be a place holder. If she got 9 more books we would add 9 to the equation. Finally if 11 is the total, the end of the equation would equal 11.

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Help me ASAP please
Fofino [41]

Answer:

it is .42 how I know is because I looked at the graph

Step-by-step explanation:

first I look at the school side

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then I get rid of bus and other

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Which of the following ordered pairs is a solution of x + y = 1?
scZoUnD [109]

Answer:

idk if there are other options, but none of these would be the answer

Step-by-step explanation:

-2 + 6 = 4

-2 + -6= -8

2 -6 = -4

5 0
3 years ago
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Lauren is making muffins. Her muffin recipe calls for 3 1 −4 cups of flour. She has 10 1 −2 cups of flour. A. Explain a method f
Soloha48 [4]

Answer:

A. 3.2307692308 batches of Muffins

B. 16 1/4 cups of flour

Step-by-step explanation:

Lauren is making muffins. Her muffin recipe calls for 3 1 −4 cups of flour. She has 10 1 −2 cups of flour.

A. Explain a method for determining the number of batches of the muffin recipe Lauren can make. Then use your method to find the number of batches she can make.

Her muffin recipe calls for 3 1 −4 cups of flour. She has 10 1 −2 cups of flour.

3 1/4 cups of flour = 1 batch of Muffin recipe

10 1/2 cups of flour = x

3 1/4 × x = 10 1/2 × 1

x = 10 1/2 ÷ 3 1/4

x = 21/2 ÷ 13/4

x = 21/2 × 4/13

x = 42/13

x = 3.2307692308 batches of Muffins

B. If Lauren plans to make 5 batches of the muffin recipe, use what you know about operating with rational numbers to predict the amount of flour she needs. Justify your prediction.

3 1/4 cups of flour = 1 batch of Muffin recipe

Hence,

1 batch = 3 1/4 cups of flour

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Cross Multiply

x = 5 × 3 1/4 cups of flour

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6 0
3 years ago
9 + 22 = x + 1<br><br> HALPP
rosijanka [135]

Hey!

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

Solution:

9 + 22 = x + 1

9 + 22 - x = x + 1 - x

31 - x = 1

31 - x  31 = 31 - 1

x = 30

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

Answer:

x = 30

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

Hope This Helped! Good Luck!

4 0
3 years ago
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X y
Allushta [10]

Answer:

D)\ \{3,-1\}

Step-by-step explanation:

Image of x=0 is y=3

Image of x=2 is y=-1

Hence \{0,2\} corresponds to \{3,-1\}

3 0
3 years ago
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