3 years ago

How can I use models to multiply fractions

2 answers:

8 0

Say we have 1/2 * 1/2. Make a square and cut it in half vertically. Shade one of the halves. Then, cut the square horizontally and shade in half of the shaded area. There we go!

denis-greek [22]3 years ago

7 0

You can count the numbers shaded over the total numbers in the model

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Write the ratio of thirteen-year-olds to fourteen-year-olds in all three forms.

ludmilkaskok [199]

Answer:

13:14

13 to 14

13/14

Step-by-step explanation:

there are three ways to write ratios, with a colon ( : ), with the word "to", and as a fraction 13/14. ❤

6 0

3 years ago

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a business analyst makes 20$ an hour for the first 42 hours he works during a week and 28$ an hour for each worked over 42 hours

sashaice [31]

Y=(20 × 42) + [28 × (x-42)]

8 0

4 years ago

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Solve this system of linear equations. Separate

Sladkaya [172]

Step-by-step explanation:

making x subject in eq 1

x= (-1-9y)/-14

substituting the value of x in eq 2

17(-1-9y/-14)=7+9y

(-17-153y)/-14=7+9y

-17-153y=-98-126y

-17+98=153y-126y

81=27y

y=3

substituting this value of y in eq 1

-14x=-1-9(3)

-14x=-28

x=2

(x,y) = (2,3)

8 0

4 years ago

Sin 7A = cos 3A, then m∠A is what?

lbvjy [14]

Answer:

m∠A = 9°

Step-by-step explanation:

$\sin 7A = \cos 3A \\ \\ \sin 7A = \sin(90 \degree - 3A) \\ \\ 7A = 90 \degree - 3A\\ \\ 7A + 3A= 90 \degree \\ \\ 10A= 90 \degree \\ \\ A = \frac{90 \degree}{10} \\ \\ m \angle A =9 \degree$

8 0

3 years ago

Convert 23 miles to feet. (1 mile -= 5280 feet)

Makovka662 [10]

Answer:

121, 440 ft

Step-by-step explanation:

5280*23= 121, 440 ft

4 0

3 years ago