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2 years ago

Which expression is the best estimate of 1.25 + (-2.69)?

Mathematics

1 answer:

jok3333 [9.3K]2 years ago

7 0

Answer: 1+(-3)

Because you round the numbers, anything below 5 is rounded to 0 and anything 5 or above is rounded up. like 1.2 is 1, and 5.7 is 6.

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Felicia Johnson paid $125 to join a tennis club. She pays an additional five dollars every time she uses one of the clubs tennis

anyanavicka [17]

Answer:

A. C=125+5n

B. 30 Months

Step-by-step explanation:

275-125=150÷5=30

6 0

4 years ago

Can someone explain how to do this? i know the answer but i don't know how to work it out. Find the absolute mean deviation for

harina [27]

Step-by-step explanation:

The mean absolute deviation is:

MAD = ∑ᵢ₌₁ⁿ│xᵢ − μ│/ n

First, find the mean.

μ = (x + 2x + 3x + 4x) / 4

μ = 2.5x

Now find the mean absolute deviation:

MAD = (│x − 2.5x│+│2x − 2.5x│+│3x − 2.5x│+│4x − 2.5x│) / 4

MAD = (│-1.5x│+│-0.5x│+│0.5x│+│1.5x│) / 4

MAD = (1.5x + 0.5x + 0.5x + 1.5x) / 4

MAD = (4x) / 4

MAD = x

6 0

3 years ago

PLEASE ILL GIVE YOU BRAINLIEST!

Alex Ar [27]

Answer:

Taking the square root

Step-by-step explanation:

$x^2-36=0$

$x^2=36$

$x=\pm6$

Alternatively, you can use a difference of squares to factor and solve:

$x^2-36=0\\(x+6)(x-6)=0\\x=-6,x=6$

5 0

3 years ago

The big room measured 19 ft 10 in. by 22 ft 1 in. About how many square feet of carpet are needed to re-carpet the big room?

Katyanochek1 [597]

Answer:=/

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

A bottel holds z ounces of water a second bottel holds 16 onces witch is 8/5 times as much warter how much does the frist bottel

nataly862011 [7]

Answer:

The first bottle holds 10 ounces of water.

Step-by-step explanation:

The bottle holds z ounces.

The second bottle holds 16 ounces, which is 8/5 times the first, which is z.

How much water does the first bottle holds?

$\frac{8z}{5} = 16$

$8z = 16*5$

$8z = 80$

$z = \frac{80}{8}$

$z = 10$

The first bottle holds 10 ounces of water.

3 0

3 years ago