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3 years ago

Identify the property that is justifies the statement: If a=b, then a+c=b+c

1 answer:

8 0

Easy

equality property of addition

if a=b and c=c, then a+c+b+c

basically
you can do anything to an equaiton as long as you to it to both sides

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The simplest form of the ratio 40 minutes to 6 hours is?

Kazeer [188]

Answer:

1:9

Step-by-step explanation:

6×60=360min

40:360

1:9

6 0

2 years ago

Read 2 more answers

David can finish painting the room in six hours and his elder brother Anthony can finish it in four hours if both brothers paint

lbvjy [14]

Answer:

2.4 hours

Step-by-step explanation:

David's time = 6 hours

Anthony's time = 4 hours

the combined time is given by the following formula

1/ (david's time) + 1/(anthony's time) = 1/total time

1/6 + 1/4 = 1/Total

4/24 + 6/24 = 1/Total

10/24 = 1/ total (taking reciprocal of both sides)

24/10 = total

total time = 24/10 = 2.4 hours

5 0

3 years ago

Help <br><br> X(-X^4)(-x^4)=

Kruka [31]

X(-x^4)(-x^4)=

The answer is x^9

4 0

2 years ago

use the model to solve 4 friends equally split in one half of a pound of candy how much will each friend get

den301095 [7]

Model-? I don't see a model?-

3 0

3 years ago

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The net of a square pyramid is shown

Wewaii [24]

Answer:

Option (D)

Step-by-step explanation:

Surface area of a square pyramid is determined from the formula,

Surface area = Area of the square base + 4(Area of one lateral triangular side)

Area of the base = (Side)²

= 8²

= 64 cm²

Area of one lateral triangle = $\frac{1}{2}(\text{Base})(\text{Height})$

= $\frac{1}{2}(8)(8)$

= 32 cm²

Therefore, surface area of the square pyramid = 64 + 4(32)

= 64 + 128

= 192 cm²

Therefore, Option (D) will be the correct option.

3 0

2 years ago