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2 years ago

When Mr Lee was given a raise of 20%, his new salary was $1980.How much was his increase in his salary?

Mathematics

1 answer:

pishuonlain [190]2 years ago

7 0

Answer:

$330

Step-by-step explanation:

to find how much he earned before raise:

1.2x = 1980

x = 1980/1.2

x = 1650

current salary: 1980

former salary: 1650

he makes $330 more

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3 years ago

What is the smallest positive degree angle measure equivalent to sin^-1 (0.391)?

natta225 [31]

Given:

The value is:

$\sin^{-1}(0.391)$

To find:

The smallest positive degree angle measure equivalent to $\sin^{-1}(0.391)$ .

Solution:

We have,

$\sin^{-1}(0.391)$

Using the scientific calculator, we get

$\sin^{-1}(0.391)=23.0167366398^\circ$

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Therefore, the smallest positive degree angle measure equivalent to $\sin^{-1}(0.391)$ is 23 degrees.

5 0

2 years ago

Read 2 more answers

Need help :) pleaseeeeeee :(

gayaneshka [121]

Answer: $x\geq 88$

This means that he has to save at least $88 or more to have enough money.

Step-by-step explanation:

He has $37 and he needs to save more (+) but we don't know how much more that is, so that's why that is our unknown value. (x). The sum of them has to be at least 125 or greater.

$37+x\geq 125$

Subtract 37

$x\geq125-37$

$x\geq 88$

8 0

3 years ago

What is the difference of polynomials (8r6s3-9r5s4+3r4s5)-(2r4s-5r6-4r5s4)

Alinara [238K]

If you would like to solve (8r^6s^3 – 9r^5s^4 + 3r^4s^5) – (2r^4s^5 – 5r^3s^6 – 4r^5s^4), you can do this using the following steps:

(8r^6s^3 – 9r^5s^4 + 3r^4s^5) – (2r^4s^5 – 5r^3s^6 – 4r^5s^4) = 8r^6s^3 – 9r^5s^4 + 3r^4s^5 – 2r^4s^5 + 5r^3s^6 + 4r^5s^4 = 8r^6s^3 – 5r^5s^4 + r^4s^5 + 5r^3s^6

The correct result would be 8r^6s^3 – 5r^5s^4 + r^4s^5 + 5r^3s^6.

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3 years ago

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Yuki888 [10]

Answer:

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Step-by-step explanation:

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3 years ago