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3 years ago

Which statement below shows the best use of friendly numbers to estimate the value of 27 x 4

Mathematics

2 answers:

Romashka-Z-Leto [24]3 years ago

4 0

Yeah, 27 x 4=108 if thats what youre asking for

topjm [15]3 years ago

3 0

27x4=108 is the best form and answer

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Alexis was keeping track of how much money she was spending online shopping. On Monday she spent $50. Tuesday she spent $65. Wed

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Step-by-step explanation:

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3 years ago

Help me with #22 Please i need steps too

VladimirAG [237]

Answer:

$\frac{1}{2} (8)(x+4)=3(x+6)\\x=2$

Step-by-step explanation:

$\frac{1}{2} bh=bh\\\\\frac{1}{2}(8)(x+4)=3(x+6)\\4(x+4)=3x+18\\4x+16=3x+18\\4x=3x+2\\x=2$

1. set the equation for the area of each shape equal to each other

2. simplify each side until you get $4x+16=3x+18$

3. subtract 16 from both sides which will give you $4x=3x+2$

4. subtract 3x from both sides which will give you the value of x. $x=2$

5. check that $x=2$ is correct by plugging it into the equations

triangle:

$area=\frac{1}{2} (8)(2+4)\\area=4(6)\\area=24$

rectangle:

$area=3(2+6)\\area=3(8)\\area=24$

the areas are the same

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3 years ago

You want to put $8,000 in a simple interest account. It has a 2% annual interest rate. How long must you invest that money to ea

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3 years ago

Given that the order of a mod p is 30. What is the order of a2 mod p? How about a3 mod p? Find a number in terms of a which is o

AnnyKZ [126]

Answer: see attachment below

Step-by-step explanation:

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3 years ago

Let f(x) = -5x-1 and g(x)=x2 + 5.<br> = X<br> Find (f o g)(-2).

Anastasy [175]

Answer:

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Step-by-step explanation:

evaluate g(- 2) then substitute the result into f(x) , that is

g(- 2) = (- 2)² + 5 = 4 + 5 = 9 , then

f(9) = - 5(9) - 1 = - 45 - 1 = - 46

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3 years ago