MATHEMATICS HIGH SCHOOL

Which amount of time is the shortest?3 hours, 50 minutes
250 minutes
270 minutes
4 hours, 10 minutes

Answers

Answer 1
Answer: 3hrs , 50mins = 230mins
4hrs , 10mins = 250mins

∴ 3hrs and 50mins is the shortest
Answer 2
Answer: the answer is the first one . I got the answer by dividing by 60 and see which answer gives me the shortest time. :) hope that help

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What is the value of x in the equation −6 + x = −2?8 4 −4 −8
A hypothesis will be used to test that a population mean equals 10 against the alternative that the population mean is more than 10 with known Ï. What is the critical value of z-score for the following significance levels?A) 0.01B) 0.05C) 0.10
What is $40 with a 30% markup?
Subtract. Write your answer in simplest form. 5 2/6 - 2 3/6=____

Solve question in photo. Mathematics help. last one

Answers

easeier than last
y=2x+6
sub 2x+6 for y
3x-(2x+6)=6
3x-2x-6=6
x-6=6
add 6
x=12
sub
y=2x+6
y=2(12)+6
y=24+6
y=30

x=12
y=30
(x,y)
(12,30)



soltion is (12,30)

(03.06)A school system is reducing the amount of dumpster loads of trash removed each week. In week 5, there were 60 dumpster loads of waste removed. In week 10, there were 40 dumpster loads removed. Assume that the reduction in the amount of waste each week is linear. Write an equation in function form to show the amount of trash removed each week.

f(x) = −4x + 60
f(x) = 4x + 60
f(x) = −4x + 80
f(x) = 4x + 80

Answers

Given:
Week 5 = 60 dumpster load
Week 10 = 40 dumpster load

60 - 40 = 20
  5 - 10 =   5 

20/5 = 4 dumpster load per week.

Week 0 to Week 5 = 20 ⇒ 20+60 = 80

f(x) = -4(x) + 80
f(5) = -4(5) + 80
f(5) = -20 + 80
f(5) = 60

f(10) = -4(10) + 80
f(10) = -40 + 80
f(10) = 40

Answer:

C

Step-by-step explanation:

I dont have proof but I promise you its right. :)

How many different ways can you write a fraction that has a numerator of 2 as a sum of fractions

Answers

at least you can write it as the sum of half of it twice, that is:
2/x = 1/x + 1/x
whatever x number you have, for example:
2/5 = 1/5 + 1/5

But then, you can express a fraction in many different ways, for example again:
2/5 = 1/5 + 1/5 = 2/10 + 2/10
= 1/10 + 1/10 + 1/10 + 1/10
so there are an infinite ways of expressing such a fraction.

What are the Square numbers

Answers

Answer: A square number is another way of saying a perfect square. Any integer that has an integer as its square root is a square number.

For instance, 9 is a square number because its square root is 3, and 49 also is a square number because its square root is 7.

A number such as 108 is not a square number because its square root is 10.39 which is not an integer.

Step-by-step explanation:

Solve: -4 (2x + 11) = -x + 12

Answers

The answers is X = -8

Answer:

x=-8

Step-by-step explanation:

Multiply -4 by each number in the parenthesis ( distributive property )

Add x to -8x ( -7x )

Add 44 to 12 ( 56 )

Divide 56 and -7

 You should get x=-8

5) What is the value of n in the picture?3n
n 14
A) 19
B) 33
C) 57
D) 41.5

Answers

ok. because those two angles are sumplimentary, (they equal 180 degrees) we can set up an equations.
3n+n+14=180

then isolate the variable
4n+14=180 
     -14   -14
4n=166

then divide to undo the multiplication

4n=166
---   ----
4      4
 
n=41.5
that's super wrong .the answer cannot be 41.5 because if n=41.5 then 41.5 ×4 =166 +90 +14 =270 and that's wrong because in the diameter need have 180 not 270 so is 19×4+90+14=180 answer = 19
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