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Radda [10]
3 years ago
6

Teacher grades 4 tests during lunch. She grades 1/3 of the remainder after school. If she still has 16 tests to grade after scho

ol, how many tests are there.
Mathematics
1 answer:
blagie [28]3 years ago
7 0

Answer:

28

Step-by-step explanation:

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If sin(2x) = cos(x + 30"), what is the value of x?<br> 20°<br> 30°<br> 500<br> 1100
ivanzaharov [21]

Answer:

2x=(x+30)

2x+x=30

3x=30

x=30÷3

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3 years ago
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You have quarters and nickels saved in a piggy bank. There is a total of $3.45 in the bank. If you have 70 cents in nickels, how
Andre45 [30]

Answer:

11 quarters

Step-by-step explanation:

First, I subtract : 3.45 - .70 = 2.75

Then, divide : 2.75 by 25 ( a quarter ) = .11

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3 years ago
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I NEED ASAP:<br> What is the value of x?
Vitek1552 [10]

Answer:

x=48

Step-by-step explanation:

10x-20+6x+8=180 set the equations together and to equal 180 since a line is 180 degrees

Get the variables together

10x-20+6x+8=180

-6x       -6x

4x-20+8=180

add together -20 and 8

4x-12=180

add -12 on each side

4x-12=180

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divide all by 4

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6 0
3 years ago
Which of these numbers are divisible by 2? a 45. b 70. c 497. d 2380. e 6678. f 12443.​
Snowcat [4.5K]

Answer:

b, d and e

Step-by-step explanation:

Only even numbers are divisible by 2

The only even numbers in the list are

b 70

d 2380

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2 years ago
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My homework says determine the value of y that makes each equation true for all values of x what do they mean
lakkis [162]
Basically, it's saying make y=x by simplifying.

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