you answer 95% of the quedtions coretly on a 40-question test.How many questios do you answer incorrectly?

Mathematics

2 answers:

mr Goodwill [35]3 years ago

5 0

Answer:

Step-by-step explanation:

proportions

bogdanovich [222]3 years ago

4 0

38.

38/40=.95 so 2answers incorrect is the answer

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Please help on question 17 with step by step instructions Thanks in advance xx

shutvik [7]

Let x = Initial Price

If we increase x by 5%, we are adding 0.05x

Therefore, the new price = x + 0.05x = 1.05x

If the ticket has increased by £2.30, £2.30 is 5% of the initial price, or 0.05x

0.05x = 2.30

x = 2.30/0.05

x = 46

Therefore, the price of the ticket before the increase was £46

You can also check this backwards by doing 46*0.05 = 2.30

6 0

2 years ago

For the given function f(x)equals2.8xplus4.4, x is the number of years since 2000 and y (or f(x)) is the percent of students

slega [8]

Use photo math is very useful for things

7 0

2 years ago

WILL GIVE BRAINLIEST! NEED QUICK HELP ASAP! Photo added! least common denominator x^3/x^2+4x+4 and -9/x^2+5x+6

Oksanka [162]

The denominator( s ) we are given are $x^2 + 4x + 4$ , and . The first thing we want to do is factor the expressions, to make this easier -

$x^2 + 4x + 4$

This expression is a perfect square, as ( x )^2 = x^2, ( 2 )^2 = 4, 2 * ( x ) * ( 2 ) = 4x. Thus, the simplified expression should be the following -

$( x + 2 )^2$

The other expression is, on the other hand, not a perfect square so we must break this expression into groups and attempt factorization -

$x^2 + 5x + 6,\\\left(x^2+2x\right)+\left(3x+6\right),\\x\left(x+2\right)+3\left(x+2\right),\\\left(x+2\right)\left(x+3\right)\\\\Factored Expression = \left(x+2\right)\left(x+3\right)$