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vova2212 [387]
3 years ago
9

If 80% of the 400 students at Washington Junior High School passed the ISTEP test, how many students did not pass the ISTEP test

?
Mathematics
1 answer:
nlexa [21]3 years ago
8 0

Answer:

80 students

Step-by-step explanation:

400/80%=320

400-320=80

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Four times the sum of three consecutive integers is 156.Write and solve an equation that will find the smallest integer.
Burka [1]

Answer:

4(x+x+1+x+2)=156, x=12

Step-by-step explanation:

let the numbers be x, x+1 and x+2.

Now,

4(x+x+1+x+2)=156

4(3x+3)=156

divide both side by 4

3x+3=156/4=39

subtract 3 from both sides

3x=39-3

3x=36

divide both sides by 3

x=36/3=12

x=12

Hence, the smallest of the integers is 12.

3 0
3 years ago
There are 42 children in the classroom each student will get 28 pencils and 46 erasers how many pencils will the teacher have to
Aleksandr-060686 [28]

Since the question is asking how many pencils the teacher will have to give out, we can automatically ignore the 46 erasers from the problem because it is not relevant. The information was most likely put there to confuse you.

Each student is getting 28 pencils, so if we multiply the number of students by 28 pencils, we will find how many pencils the teacher will need to give out.

There are 42 children in the classroom, so multiply 42 by 28.

42 * 28 = 1,176

The teacher will have to give out <u>1,176 pencils</u> to her 42 children in the classroom.

4 0
3 years ago
Read 2 more answers
F(x) = x2 – 3x + 5 g(x) = V22 – 2x Calculate g (f (1)).​
erik [133]

Step-by-step explanation:

So first of all we plug in 1 into f(x) and the result of that into g(x).

f(1)=(1)^2-3(1)+5

=1-3+5

=3

g(3)=(3)(22)-2(3)

=66-6

=60

3 0
3 years ago
What is the domain of f?
larisa86 [58]

Answer:

\huge \boxed{\mathrm{A}}

Step-by-step explanation:

The domain of a function is all possible values for the value of x.

The denominator in a rational function cannot equal to 0.

x+2\neq 0

Subtracting 2 from both sides.

x\neq -2

The domain of the function is all real numbers except -2.

7 0
3 years ago
A student claims that the equation y=7 is not a linear equation because it does not have the form y=mx+b. Do you agree or disagr
Juliette [100K]
Disagree. Even  though it has no b  it is still a line but a horizontal line. It will be at 7 on the y- intercept but horizontal.
6 0
3 years ago
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