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3 years ago

What are 2 phrases for the expression 85-y

Mathematics

2 answers:

Gwar [14]3 years ago

7 0

85 decreased by a number y

the difference of 85 and a number y

adelina 88 [10]3 years ago

5 0

85 and -y
So yeah
You get it?

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Multiply the square root of 20 and the square root of 63

TEA [102]

Answer:

36.0555

Step-by-step explanation:

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3 years ago

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What is the percent of increase for a population that changed from 438,000 to 561,000?

BARSIC [14]

New number - original number

561,000 - 438,000 = 123,000.

Increased number divided by the original number

123,000 ÷ 438,000 = 0.28

Multiply by 100

0.28 x 100 = 28%

The percentage increase would be 28%

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3 years ago

-10 is the difference between 7 and another number. Find the two possible numbers.

White raven [17]

Answer:

-3 and 17

Step-by-step explanation:

Let the number be = x

x - 7 = -10

x = -10 + 7

x = -3

7 - x = -10

- x = -10 - 7

- x = -17

x = -17/-1

x = 17

The two possible numbers are -3 and 17

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3 years ago

A passenger traub keaves a depot 1.5 hours after a freight train leaves the same depot. The passenger train is travleing 18 mph

skelet666 [1.2K]

Answer:

Speed of passenger train=18+30=48 mph

Speed of freight train=30 mph

Step-by-step explanation:

Let x be the speed of freight train.

Speed of passenger train=x+18 mph

Time taken by freight train=1.5+2.5=4 hrs

Time taken by passenger train to overtake the freight train=2.5 hrs

Distance= $Speed\times time$

By using this formula

Distance traveled by passenger train=2.5(x+18) miles

Distance traveled freight train=4x

According to question

$2.5(x+18)=4x$

$2.5 x+45=4x$

$45=4x-2.5 x$

$45=1.5 x$

$x=\frac{45}{1.5}=30$

Speed of freight train=30 mph

Speed of passenger train=18+30=48 mph

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3 years ago

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Sergeeva-Olga [200]

Answer:

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Step-by-step explanation:

The range depends on the y axis. Looking at the y axis we see the number of users for each month. Looking at the x axis we see that it's 24 months not 20 months

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