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3 years ago

Help please guys I need help

Mathematics

1 answer:

omeli [17]3 years ago

7 0

Answer:

= 3 + 6/15 + 10/15

Step-by-step explanation:

To make 2/5 into a fifteenth, you have to multiply the 5 by 3 to get 15. Whatever you do to the top you have to do to the bottom, meaning that you have to multiply 2 by 3 to get 6 on top.

To make 2/3 into a fifteenth, you have to multiply the 3 by 5 to get 15. Whatever you do to the top you have to do to the bottom, meaning that you have to multiply 2 by 5 to get 10 on top.

This is the same rule for all equations involving fractions.

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(e+3)(e-5) expanded and simplified

Zarrin [17]

Step-by-step explanation:

$(e + 3)(e - 5) \\ e \times e + e \times ( - 5) + e \times e + e \times 3 \\ { e}^{2} + ( - 5e) + {e}^{2} + 3e \\ {2e}^{2} + ( - 2e)$

In this type of math equation, you have to multiply all members from the first part with the second part.

Expanded:

$e \times e+e \times (-5)+e \times e+e \times 3$

simplified:

${2e}^{2} + ( - 2e)$

8 0

2 years ago

What is the solution set of this system of equations?

Rina8888 [55]

D option is right answer

5 0

3 years ago

Read 2 more answers

(5-21)-(3 + 1) = <br> simplify involving i

ArbitrLikvidat [17]

Answer:

-20

Step-by-step explanation:

Do the math in the parenthesis first

(5-21) = -16

(3+1) = 4

Rewrite the problem

- 16 - 4= -20

The answer is -20

3 0

2 years ago

Meghan has $1.10 I'm dimes nickels and pennies. She has three times as many nickels as pennies, and the number of dimes is two l

Dmitriy789 [7]

N=3p and d=p-2 we are also told that:

p+n+d=110 using n and d from above we get:

p+3p+p-2=110

5p-2=110

5p=112

p=112/5

Which is not an integer...are we sure there is no typo in the question...

There are 3 times as many nickels as pennies

There are pennies-2 dimes

And the total is $1.10

Just checking, because something is off...

7 0

3 years ago

An item has a listed price of $85. If the sales tax rate is 9%, how much is the sales tax (in dollars)?

OlgaM077 [116]

$10.58 is your answer hope i helped :D

6 0

3 years ago

Read 2 more answers