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ziro4ka [17]
4 years ago
8

ALL NUMBERS THAT ROUND TO 80

Mathematics
1 answer:
Leokris [45]4 years ago
5 0
All numbers that round to 80 include...

75, 76, 77, 78, 79, 80, 81, 82, 83, 84

An easy song that can help you remember when to round up or down is this...

(sing to the rhythm of "We Will Rock You")

or you can just read it...

~~~~~~~~~~~~~~~~~~~~~~~

Find your place, look next door

5 or greater add one more

All digits in front, stay the same

All digits behind, zero's your name

(optional)
We will, we will round you

~~~~~~~~~~~~~~~~~~~~~~~
Some examples of rounding to the nearest tens place would include...

93 -> 90
54 -> 50
98 -> 100
22 -> 20
167 -> 170
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In 10 minutes, a heart can beat 700 times. At this rate, in how many minutes will a heart beat 140 times. At what rate can a hea
nalin [4]
In 14 minutes the heart will beat 140 times becuase i did 140/10 and got 14
3 0
4 years ago
Help help help help math
balu736 [363]

Answer:

A = 192

Step-by-step explanation:

r = 16/2 = 8

A = 3x(8)^2

8^2 = 64

A = 3 x 64 = 192

4 0
3 years ago
Read 2 more answers
If g(x) = {(4, -5), (-3, 2), (-6, 1), (1,0)}, which set of ordered pairs represents
Ket [755]

Answer:

The inverse of g(x) is {(-5, 4), (2, -3), (1, -6), (0, 1)} ⇒ (A)

Step-by-step explanation:

To find the inverse of a function switch x and y

<u>Example:</u>

If f(x) = {(1, 2), (-4, 5), (0, 0)}

To find its inverse switch x and y in each ordered pair

The inverse of f(x) = {(2, 1), (5, -4), (0, 0)}

<em>Let us do the same with our question</em>

∵ g(x) = {(4, -5), (-3, 2), (-6, 1), (1, 0)}

→ Switch x and y coordinates in all ordered pair

∴ The inverse of g(x) = {(-5, 4), (2, -3), (1, -6), (0, 1)}

<em>Look at the answer to find the correct choice</em>

It is (A)

6 0
3 years ago
What is 2/3(n+6)=10?<br> What is n?<br> 2/3 is a fraction as two thirds
Aleks04 [339]
First distribute the 2/3.
(2/3)n + (2/3)*6 = 10
(2/3)n + 4 = 10
Subtract 4 from both sides
(2/3)n = 6
Multiply both sides by (3/2) to clear the fraction
n = 9
6 0
3 years ago
Find the weights of Maryellen, her brother, and her pet from the
photoshop1234 [79]

Answer:

Maryellen would be 15, because if her mother is twice that plus 8 that would make her 38. Then, if Maryellen's dad is 3 years older than the mom that means he is 41. Add all the ages, 94.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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