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Angelina_Jolie [31]

3 years ago

5

On the first math test, Keiko answered 19 out of 20 correct. On which test did she get a better grade? Write a ratio in faction

form to compare the number correct to the total questions for each test.

2 answers:

frosja888 [35]3 years ago

3 0

The fraction for is 19/20

klasskru [66]3 years ago

3 0

It is nineteen out of twenty

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Simplify: Negative two and one-third minus negative ten and one-sixth(20 points)

slamgirl [31]

Given:

The expression is

$-2\dfrac{1}{3}-\left(-10\dfrac{1}{6}\right)$

To find:

The value of the expression.

Solution:

We have,

$-2\dfrac{1}{3}-\left(-10\dfrac{1}{6}\right)=-2\dfrac{1}{3}+10\dfrac{1}{6}$

Convert the mixed fraction in improper fraction.

$=-\dfrac{2\times 3+1}{3}+\dfrac{10\times 6+1}{6}$

$=-\dfrac{6+1}{3}+\dfrac{60+1}{6}$

$=-\dfrac{7}{3}+\dfrac{61}{6}$

Taking LCM, we get

$=\dfrac{-2(7)+61}{6}$

$=\dfrac{-14+61}{6}$

$=\dfrac{42}{6}$

Convert it into mixed fraction.

$=\dfrac{6(7)+5}{6}$

$=7\dfrac{5}{6}$

Therefore, the correct option is C.

8 0

3 years ago

Pls help will give brainliest to whoever answers first correctly

8090 [49]

Answer:

1/3

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Which ratios are proportional to 14:21? choose all the answers that are correct

inna [77]

A is the answer because you divide until you get the smallest to numbers that are mutiplied by 14:21

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Amanda needs to cut a board to use for a project. The board is 10 feet long. She first has to cut off 1 3/4 feet from one end of

kirza4 [7]

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3 years ago