4 years ago

Evaluate the expression -2.3=

Mathematics

1 answer:

hammer [34]4 years ago

4 0

Answer:-2.3

Step-by-step explanation:

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The graph shows the density of a substance. Find the density in kilograms per liter.<br> PLEASE HELP

Mandarinka [93]

Answer:

for every liter it is 1/2 kilograms

Step-by-step explanation:

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3 years ago

The sum of half of a number and 8 less<br> than the number is 25. Find the number.

LuckyWell [14K]

Answer:

The number is 22

Step-by-step explanation:

let x = the number

$\frac{1}{2} x + x - 8 = 25 \\ \frac{1}{2} x + x - 8 + 8 = 25 + 8 \\ \frac{1}{2} x + x = 33 \\ factor \: out\: x \: on \: the \: left \\ x( \frac{1}{2} + 1) = 33 \\ divide \: both \: sides \: by \: \frac{1}{2} + 1 \\ \frac{x( \frac{1}{2} + 1) }{ \frac{1}{2} + 1} = \frac{33}{ \frac{1}{2} + 1} \\ x = \frac{33}{ \frac{3}{2} } \\ x = \frac{66}{3} \\ x = 22$

let's factor out x from the left hand sid

4 0

3 years ago

A mother seal is fed 5 fish for every 2 fish for its baby. If mother is fed 8 fish how many does the baby get

iogann1982 [59]

5/2 = 8/x

5x = 16

x = 16/5

x = 3.2 or 3 1/5 fish

7 0

3 years ago

If any number can be used as an input value, what is the domain of the function? Why?

xenn [34]

Answer:

Go here maybe it will help:

Domain and Range - MathBitsNotebook(A1 - CCSS Math)

Step-by-step explanation:

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3 years ago

Read 2 more answers

PLEASE ANSWER!!!!!!<br><br> 3 quarters, 3 dimes, and 5 pennies as fraction and decimal

Radda [10]

Answer:

0.75 3/4, 0.30 3/10, 0.05 1/20

Step-by-step explanation:

25x3 is 75 but because its 75 cents its 0.75
and 3/4 means 0.75 (3 divided by 4 is 0.75)

10x3 is 30 but because its 30 cents its 0.30
and 3/10 means 0.30 (3 divided by 10 is 0.30)

1x5 is 5 and because its 5 cents its 0.05
and 1/20 means 0.05 (1 divided by 20 is 0.05)

8 0

2 years ago