How can you solve problems involving equations that contain adding subtracting multiplication or division

Mathematics

1 answer:

kiruha [24]3 years ago

8 0

Use PEMDAS.
Compute in order of parentheses, exponents, multiplication, division, addition, subtraction.

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Y + 6.2x = −13, when x = −4

alexgriva [62]

You would multiply 6.2 by -4 which is -24.8 so then the equation is y+-24.8=-13 then add -24.8 to both sides and it will be y=11.8

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3 years ago

nora is planning a birthday party for her little sister, colleen. she needs to purchase 12 cupcakes she can not spend more than

Lapatulllka [165]

Answer:

if she cannot spend more than $40, she will spend .3 on each cupcake

Step-by-step explanation:

when you divide 12 by 40, you get .3 and to check if it is true, you can multiply .3 x 40 and you will get 12 hope you get it right, and have a good day :)

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3 years ago

in sound and harmonics, the frequency of a vibrating string varies inversely to its length. A guitar string 20 inches long vibra

zmey [24]

20 inches is 400
10 inches is 200
5 iches is 100

So 20+10+5=35
Which means 400+200+100= 700

So the frequency of a 35 inch string is 700 cycles per second

5 0

3 years ago

Please help. Thank you

love history [14]

Answer:

The length of side x is $x = \sqrt{6}$