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Mathematics

1 answer:

tangare [24]4 years ago

6 0

The two triangles are similar, so the corresponding sides have the same ratio:

5/8 = x/4
x = 20/8 = 2.5

x = 2.5

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If 4/25=?/20 then what is the missing number

ANEK [815]

Answer:

Answer: The missing number is 3.2

Step-by-step explanation:

• let the missing number be x

${ \tt{ \frac{4}{25} = \frac{x}{20} }} \\ \\ { \tt{x = \frac{4 \times 20}{25} }} \\ \\ { \tt{x = \frac{80}{25} }} \\ \\ { \tt{x = 3.2}}$

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Two teams of workers were scheduled to produce 680 parts in a month. The first team produced 20% more parts than planned and the

almond37 [142]

Let
x------> parts produced by the first team according to the plan
y------> parts produced by the second team according to the plan

we know that
x+y=680--------> equation 1
0.20x+0.15y=118--------> equation 2

using a graph tool
see the attached figure

the solution is
x=320
y=360

the answer is
parts produced by the first team according to the plan------> 320
parts produced by the second team according to the plan----> 360