How do the rules for adding and subtracting signed decimals compare with the rules for adding and subtracting integers?

1 answer:

3 0

If sign is the same add and keep the sign

If the sign is different subtract and keep the sign of larger absolute value

Subtraction rules: add opposite and then use addition rules

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10 pts

VLD [36.1K]

I think the answer is 3/5

6 0

4 years ago

GEOMETRY!! Will give brainliest

Goryan [66]

Whats the question?...

4 0

3 years ago

Working alone and at a constant rate, Machine A takes 3 hours to create a widget. Machine B, working alone and at a constant rat

PilotLPTM [1.2K]

Answer:

Time required by Machine B to create a widget = 4 hours

Step-by-step explanation:

Time taken by Machine A ( $T_{A}$ ) = 3 hours

Time taken by Machine B ( $T_{B}$ )= x hours

Time taken by both machines by working together = 12 hours

The time required to both machines by working together to finish a task is given by the formula = $\frac{T_{A} {T_{B} } }{T_{A} + T_{B} }$

Put the values in above formula we get

⇒ T = $\frac{3 x}{3 + x}$

⇒ 12 = $\frac{3 x}{3 + x}$

⇒ 36 + 12 x = 3 x

⇒ x = - 4 hours

This is the time required by Machine B to create a widget.

8 0

3 years ago

Two years of local Internet service cost $685, including the installation fee of $85. What is the monthly fee?

AnnZ [28]

685-85=600
1 year =12 months
12 multiply by 2 =24
600 divided by 24=25
answer=25

8 0

3 years ago

Read 2 more answers

Six word sentences that equal 16

Rzqust [24]

Eight times two equals sixteen.
two times eight equals sixteen.
four times four equals sixteen.
sixteen times one equals sixteen.
one times sixteen equals sixteen.
eight plus eight equals sixteen

8 0

3 years ago