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True [87]
3 years ago
13

Evaluate - x - 4 when x = - 7 and y=5

Mathematics
1 answer:
shusha [124]3 years ago
7 0

Answer:

khan academy

Step-by-step explanation:

https://www.khanacademy.org/math/in-in-grade-9-ncert/xfd53e0255cd302f8:in-in-chapter-4-linear-equations-in-two-variables/xfd53e0255cd302f8:in-in-graph-of-a-linear-equation-in-two-variables/v/graphs-of-linear-equations

hope this helps

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What expression can be used for estimating 868 divided by 28
weeeeeb [17]
868 is about 870, and 28 is about 30, so your expression would be 870 divided by 30 which would be 29 and the actual answer is 31, so your estimate would be close to your actual answer.
6 0
3 years ago
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Box D and Box E are made from unit cubes of the same size.
Dominik [7]

Answer:

Box E has a greater volume than Box D.

Step-by-step explanation:

Step 1 : Find the volume of Box D.

The formula for volume of a rectangular prism such as this is

height * width * depth

Knowing this, let's substitute the values.

3 * 5 * 1 = 15

The volume of box d is 15 cubic units.

Step 2 : Find the volume of Box E.

height * width * depth

4 * 4 * 1 = 16

The volume of box e is 16 cubic units. Therefore box E has a greater volume than box D.

8 0
3 years ago
Amy can paint a room in 12 hours. Alicia can paint the same room in 16 hours. How long does it take for both Amy and Alicia to p
Simora [160]
Well 12 is 3\4 of 16 so honestly it would take the 8 hours working together.

As far as formula if I had to guess it would look like.. 12Amy(Ay)- 16Alicia(Aa) = 4 hours minus 4 from Amy would be 8hours.

in fraction form might make more sense. 3\4 - 4\4 = 1/4 minus that from Amy and she'll finish together with Alicia 4 hours quicker being 8hours.
3 0
3 years ago
Identify the property used in each step of solving the inequality 7x+4<46
meriva
7x+4<46

7x+4(-4)<46(-4) <- Subtraction Property of Equality

7x<42

7x(/7)<42(/7) <- Division Property of Equality

x<6

I hope this helps!
~kaikers
8 0
4 years ago
Read 2 more answers
Simplify:-(x +9) -3(4x - 3)<br> -13x + 18<br> -13x<br> -11x + 18<br> -11x
DochEvi [55]

Answer:The answer is -13x

Step-by-step explanation:

5 0
4 years ago
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