3 years ago

Can you simplify the question (image above), no working out needed!

Mathematics

1 answer:

dem82 [27]3 years ago

3 0

32x^10 + 18x^4 Hope this helps

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What is the solution to 2x+1=-7x+19

joja [24]

The answer is x equals 2

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3 years ago

Last time, one out of every 4 students in our class was absent. This time, after Jen came back, only one out of every 5 students

VMariaS [17]

Answer: There are 20 students and 4 students are not here today.

Step-by-step explanation:

If the number of students = 4

Let the number of students be 'x'.

Fraction of students absent = $\dfrac{x}{4}$

If the number of students = 5

Fraction of students absent = $\dfrac{x}{5}$

And Jen came back,

So, the fraction of student absent is also written as

$\dfrac{x}{4}-1$

According to question, it becomes,

$\dfrac{x}{5}=\dfrac{x}{4}-1\\\\\dfrac{x}{5}=\dfrac{x-4}{4}\\\\4x=5(x-4)\\\\4x=5x-20\\\\4x-5x=-20\\\\-x=-20\\\\x=20$

Hence, there are 20 students in our school.

And number of students are not here today is $\dfrac{20}{5}=4$

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3 years ago

Zack bought a cost for 69.78. he paid with $100 bill and received 26.73 in change. how much was the sales tax.

pshichka [43]

The tax was 3.49 dollars thats what i got hope it helps you man :)

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3 years ago

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Which steps would you use to solve this equation? Check all that apply.

Dovator [93]

Answer: The answers are

Subtract 7 from both sides of the equation.
Subtract 7 from 7.
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Step-by-step explanation:

p + 7 = 12

= p + 7 - 7 = 12 - 7

= p = 5

Then for the substituting part

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Hope this helps!

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3 years ago

Kamila [148]

Answer:I forgot how to do that

Step-by-step explanation:

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