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Grace [21]
3 years ago
15

Help please? (20 points)

Mathematics
2 answers:
spin [16.1K]3 years ago
7 0

Answer:

0.79

Step-by-step explanation:

1.4-0.61=0.79

murzikaleks [220]3 years ago
6 0

Answer:

0.79

Step-by-step explanation:

1.4 - 0.61 = 0.79

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A price of a car is 15400 before it is reduce by 8% <br> how much does it cost after the reduction
Marysya12 [62]

Answer:

14,168

Step-by-step explanation:

15400

Find 1% and times it by 8

Take away 8% from 15400

15400-1232=14168

5 0
3 years ago
Read 2 more answers
Josh earned $80 to use for back-to-school shopping. So far he has spent $24 on a backpack and $32 on new shoes. Think abt the yo
Lady_Fox [76]

Answer:

24$

Step-by-step explanation:

$80 - $32 - $24 = $24

7 0
3 years ago
I need help with someone explaining how to find the range of this! This course didn’t explain anything!
zaharov [31]

Answer:

(-infinity,3), D

Step-by-step explanation:

3 if x is greater than or equal to 1 is nothing. That leaves us with h(x)=2x+1 if x<1. If you substitute in 1 for x, you get 3, but of course that isn't possible, so the range is (-infinity,3), which is D.

4 0
3 years ago
If a student was randomly guessing while completing a 20 question multiple choice exam, what is the probability they would score
mario62 [17]

Answer:

you want 4 correct and 16 incorrect

there are 20 questions

each question has four answers, so

P(right answer) = 1/4

P(wrong answer) = 3/4

----

Since you want 4 correct of 20 we have a combination of 20C4

This is a binomial problem where p = 1/4, q = 3/4 and we get

(20 "choose" 4)*(probability correct)^(number correct)*(probability incorrect)^(number incorrect)

putting numbers in we get

(20c4)*(1/4)^4*(3/4)^16

This gives us

~ .189685

Step-by-step explanation:

7 0
3 years ago
I WILL AWARD BRAINLIEST!! PLEASE HELP!!
Marrrta [24]

Answer:

Fist one:

x−2=−3 

Second one: a=63b/23

Third one: x=−a/2+3b/2

7 0
3 years ago
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