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2 years ago

Do the ratios 3:2 and 54:10 form a proportion

Mathematics

1 answer:

Bas_tet [7]2 years ago

5 0

Answer:

No.

Step-by-step explanation:

3/2=1.5 and 54/10=5.4.

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Can you help me with these please 30 points

garik1379 [7]

Answer: 1. densities

2. i don’t have the passage but i assume it to be A or D

3. it will sink so A

Step-by-step explanation:

the density must be lower than 1 g/cm3 for it to float

3 0

3 years ago

Read 2 more answers

Before 2017, a smart phone manufacturer's phones had a diagonal length of 5.8 inches and an aspect ratio

zhenek [66]

Answer: They were not correct it was bigger by 2.5 so the people were wrong

6 0

2 years ago

Solve the equation 4(x + 2)= 6x + 4

SIZIF [17.4K]

The answer is x=2

show you step-by-step

step 1:simplify both sides of the equation.

(4)(x)+(4)(2)=6x+4

4x+8=6x+4

step 2:subtract 6x from both sides.

4x+8-6x=6x+4-6x

-2x+8=4

step 3: subtract 8 from both sides

-2x+8-8=4-8

-2x=-4

step 4: divide both sides by -2

-2x/-2= -4/-2

x=2

that helps you

7 0

3 years ago

5miles = 8km. How many km in 80miles?

Zina [86]

Answer:

128

Step-by-step explanation:

Set this up as a proportion with miles on the top and km on the bottom:

$\frac{mi}{km}:\frac{5}{8}$

If we want to know how many km are in 80 miles, we put the variable with the km stuff on the bottom and 80 on top and cross multiply to solve for the variable:

$\frac{mi}{km}:\frac{5}{8}=\frac{80}{x}$ so

5x = 640 and

x = 128

That means that 80 miles is equivalent to 128 km

4 0

3 years ago

Calculate<br> a) 20% of £150<br> b) 15% of 80 kg<br> c) 85% of 2 500 m

GaryK [48]

Step-by-step explanation:

$p\%=\dfrac{p}{100}$

$a)\\20\%=\dfrac{20}{100}=\dfrac{2}{10}=0.2\\\\20\%\ of\ \£150\to0.2\cdot\£150=\£30\\\\b)\\15\%=\dfrac{15}{100}=0.15\\\\15\%\ of\ 80kg\to0.15\cdot80kg=12kg\\\\c)\\85\%=\dfrac{85}{100}=0.85\\\\85\%\ of\ 2500m\to0.85\cdot2500m=2125m$

6 0

3 years ago