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Firlakuza [10]
2 years ago
9

Measurement maths!! If good with area please help

Mathematics
1 answer:
Gennadij [26K]2 years ago
4 0

Answer:

a. 15/2 or 7.5 sqcm

b. 20 sqcm

Step-by-step explanation:

Area of a triangle is (base × height)/2.

A = (5×3)/2

A = 15/2 = 7.5cm^2

The area of a parallelogram is just base × height, but yoy have to choose wisely what is the base and height. These two measurements must be perpendicular. So the 4 and 5 are perpendicular. We won't use the measurement 6cm at all.

Area = 4×5

Area = 20 sqcm

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mr Goodwill [35]

Answer:

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Step-by-step explanation:

5 0
3 years ago
Jill works 10q hours a day. If she earns $6.50 an hour, how much does she earn a day? Give your answer in terms of q.
kolbaska11 [484]
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3 years ago
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3(-4x + 5) = 12
8_murik_8 [283]

Answer:

x=1/4

Step-by-step explanation:

7 0
3 years ago
What is the solution of the system?
Phoenix [80]

Answer:

(-2, 6)

Step-by-step explanation:

We can simply do this by plugging in all of the coordinates. (I did this in my head quickly, so I know what it is; I'm just going to plug in the correct answer.) The correct answer is (-2, 6), so we're just going to plug them into the simplest equation, which is probably y=-3x. So...

6=-3(-2)

6=6

This answer is correct. If you're unsure about the answer, you can always check in the other equation. So...

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5 0
3 years ago
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'The length of a rectangle is 6 feet more than three
olga_2 [115]

Answer:

length : 15 ft

width : 3 ft

Step-by-step explanation:

perimeter = 2×l(ength) + 2×w(idth) = 36

l = 3w + 6

=> 2×(3w+6) + 2w = 36

6w + 12 + 2w = 36

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w = 3

=> l = 3w + 6 = 3×3 + 6 = 9+6=15

3 0
3 years ago
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