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3 years ago

1 2/7 divided by -2 1/4

Mathematics

2 answers:

Alchen [17]3 years ago

7 0

Answer: 0.5714

Step-by-step explanation:

fiasKO [112]3 years ago

6 0

Answer:

-4/7

Step-by-step explanation:

Convert any mixed numbers to fractions.

Then your initial equation becomes:

9/7÷−9/4

Applying the fractions formula for division,

=9×4/7×−9

=36/−63

Simplifying 36/-63, the answer is

=−4/7

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Step-by-step explanation:

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4 years ago

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3 years ago

Item 6 Your friend earns $10.50 per hour. This is 125% of her hourly wage last year. How much did your friend earn per hour last

tester [92]

Answer:

$8.40

Step-by-step explanation:

We can write a proportion to find the total amount last year using the information given. A proportion is two equivalent ratios set equal to each other.

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3 years ago

Solve 2 3/4a=19 1/4

melamori03 [73]

2 3/4a=19 1/4
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8 0

3 years ago

Read 2 more answers

If cosθ=2/3 find cscθ using identities. This is in quad. 1.

laiz [17]

Step-by-step explanation:

cos θ = 2/3

$\quad \twoheadrightarrow\sf {cos \; \theta = \dfrac{Base}{Hypotenuse} } \\$

Hence, base = 2 units and hypotenuse = 3 units.

$\quad \twoheadrightarrow\sf { H^2 = B^2 + P^2} \\$

$\quad \twoheadrightarrow\sf { P^2 = H^2 - B^2} \\$

$\quad \twoheadrightarrow\sf { P^2 = (3)^2 - (2)^2} \\$

$\quad \twoheadrightarrow\sf { P^2 = 9- 4} \\$

$\quad \twoheadrightarrow\bf { P = \sqrt{5}} \\$

Now, we know that :

$\quad \twoheadrightarrow\sf {cosec \; \theta = \dfrac{Hypotenuse}{Perpendicular} } \\$

$\quad \twoheadrightarrow\bf{cosec \; \theta = \dfrac{3}{\sqrt{5}} } \\$

Therefore, the required answer is 3/√5.

4 0

2 years ago