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3 years ago

PLEASE HELP PLEASE HELP

Mathematics

1 answer:

Alex777 [14]3 years ago

4 0

the answer is x= 69°

21+90=111

180-111=69

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NEED TO BE DONE ASAP!!!plz

exis [7]

Answer:

Tim will get 8 and Sam will get 32

Step-by-step explanation:

6 0

3 years ago

PLEASE HELP MEE RN! DUE IN 5 MINS SHOW YOUR WORK PLEASE

77julia77 [94]

Answer:

x = 0

y = -12

Step-by-step explanation:

Plug in what y is equal to into the second equation

-3(x - 12) = 2x + 36

Distribute the -3

-3x + 36 = 2x + 36

-36 -36

-3x = 2x

They cannot be equal so x = 0

Plug in 0 into the y equation

y = 0 - 12

y = -12

5 0

3 years ago

The arithmetic mean (average) of four numbers is 85. If the largest of these numbers is 97, find the mean of the remaining three

Margaret [11]

Answer:

Step-by-step explanation:

Let's do this systematically:

Four numbers: a, b, c, d

Whose mean is 85: $\frac{a + b + c + d}{4} = 85$

Whose largest number is 97: $\frac{a + b + c + 97}{4} = 85$

Lets solve for the other numbers:

a+b+c+97 = 85*4 = 340

340 - 97 = 243

a+b+c = 243

at this point it doesn't matter what the numbers are, they just need to add up to 243.

We can do 243÷3=81, which is our answer

3 0

3 years ago

Assume that $4,000 I deposited into an investment account doubled in value over a six year period. What annual interest rate mus

Novay_Z [31]

Answer:

Interest rate is about 12.246%

The initial deposit doesn't matter because when you divide both sides by the initial deposit you're always left with (1+i)ⁿ=2

Step-by-step explanation:

$4000(1+i)^6=8000\\(1+i)^6=2\\1+i=\sqrt[6]{2} \\1+i=1.122462048\\i=.12246$

6 0

3 years ago

How to make 3x + (-5) = 19 a 3 step step equation

lbvjy [14]

Answer:

Step-by-step explanation:

You subtract -5 from 19, giving you 24. You then divide 24 from 3, giving you 8.

4 0

3 years ago