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ZanzabumX [31]
3 years ago
7

I need help with these my teacher didn’t teach us this

Mathematics
1 answer:
kolezko [41]3 years ago
6 0

Answer:

Step-by-step explanation:

I am very sorry if this doesnt make sense but i tried to give you an example for the first one so you could figure out the 4 and 5.

If y=12 when x=6, determine y when x=18.

Ok if y=12 and x=6 they add up to 18. So X=6 then you are going to have to times 6 by three to get x to equal 18. That means we have to times y by 3 also which equals 36. We can check this by making sure they are congruent or the same. So if the origanal question said y equals 12 and x equals 6. How do you make sure it's the right answer? What do they have in commmon? Well to get 12 you have to multiply 6 by 2 to get 12. And to get 6 you have to divide 12 by 2. So the common number is 2. So for x to equal 18 we have to figure out is the have something in common, so 18 times 3 equals 36 and if 36 divided by 3  we get 18. So the common number is 3.

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Find the x and y intercepts for the following. X= -(y-1) ^2-2
Vanyuwa [196]

Answer:

x intercepts: (-3, 0)

y intercepts: (None)

Step-by-step explanation:

6 0
2 years ago
What is the solution for x of ax-5=b?
BigorU [14]

Answer:

x = (b + 5/a)

Step-by-step explanation:

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

PEMDAS is the order of operation, and equals:

Parenthesis

Exponents (& Roots)

Multiplication

Division

Addition

Subtraction

First, add 5 to both sides of the equation:

ax - 5 (+5) = b (+5)

ax = b + 5

Next, divide a from both sides to isolate the variable, x:

(ax)/a = (b + 5)/a

x = (b + 5)/a

x = (b + 5/a) is your answer.

~

8 0
3 years ago
Roberto spent 90 minutes doing homework,2/3 hour reading, and 540 seconds making lunch.How many more minutes did he spend doing
poizon [28]

Answer:

first of all convert the hours to minutes

2/3×60=40

convert the seconds to minutes

540÷60=9

add the minutes

40+9=40

so he spent

90-40=50 more minutes in doing his homework.

6 0
3 years ago
Name one rational number and<br> one irrational number.
prohojiy [21]
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6 0
3 years ago
MpRashawn recently spent $100 to open a store selling tee-shirts. At his business, he purchases plain tee-shirts for $11 each, p
jeyben [28]
26-11=15
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3 0
3 years ago
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