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3 years ago

The three sides of a triangle are in the ratio 2:4:5. If the perimeter is 22 m, find the

Mathematics

2 answers:

marishachu [46]3 years ago

7 0

Answer:

the length of the shortest side would be 4

Step-by-step explanation:

2:4:5

2 + 4 + 5 = 11

4 + 8 + 10 = 22

4:8:10

topjm [15]3 years ago

4 0

Answer:

what are primary numbers

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The mass of a certain window is 18kg. What is the mass of 5 of those windows?

Daniel [21]

18 kg times 5 kg would be 90 kg because each window was 18 kg, hence 90 kg

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3 years ago

In a village the number number of houses and flats are in a a ration 9:5

ki77a [65]

Answer:

180 houses

Step-by-step explanation:

The 3 part of the ratio 10 : 3 represents 30 bungalows, thus

30 ÷ 3 = 10 ← value of 1 part of the ratio

10 parts = 10 × 10 = 100 ← number of flats

The 5 part of the ratio 9 : 5 represents 100 flats, thus

100 ÷ 5 = 20 ← value of 1 part of the ratio, then

9 parts = 9 × 20 = 180 ← number of houses

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3 years ago

2x - y - 4 = 0 3x + y - 9 = 0 What is the solution set of the given system?

Ad libitum [116K]

Answer:

$(\frac{13}{5};\frac{6}{5}).$

Step-by-step explanation:

$1)\left \{ {{5x=13} \atop {y=2x-4}} \right. \ 2)\left \{ {{x=\frac{13}{5} } \atop {y=\frac{6}{5} }} \right.$

short explanation: 1) to add the 1st equation to the 2d; 2) to calculate the value of 'x', then to substitute x=13/5 into the 2d equation and calculate the value of 'y'.

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3 years ago

A model car has a scale factor of 1 64 164 The diameter of a tire on the model is 0.41 inches. So, the diameter of the tire on a

Alchen [17]

Answer: 26.24 inches

Step-to-step explanation:

Given:

The scale factor to model car= $\frac{1}{64}\ inches$

Thus, if diameter of tire of the actual car is k then diameter of model car = $\frac{1}{64}k$

Since, the diameter of tire of the model car= 0.41 inches

$\\\Rightarrow\frac{1}{64}k=0.41\\\Rightarrow\ k=0.41\times64\\\Rightarrow\ k=26.24\ inches$

hence, the diameter of tire of the actual car= 26.24 inches

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3 years ago

Find the diameter of the sphere with the volume of 36 pi cubic units

kobusy [5.1K]

Answer:

${ \tt{volume = \frac{4}{3} \pi {r}^{3} }} \\ 36\pi = \frac{4}{3} \pi \times {(2d)}^{3} \\ \frac{36 \times 3}{4} = 8 {d}^{3} \\ 27 = 8 {d}^{3} \\ {d}^{3} = \frac{27}{8} \\ diameter = 1.5 \: units$

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3 years ago