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3 years ago

If y=2x+3 find the value of y when x=5

Mathematics

2 answers:

Alex73 [517]3 years ago

8 0

Y is 13 when you solve the problem

kirill115 [55]3 years ago

5 0

Fill in the value:
y = 2 · 5 + 3
y = 10 + 3
y = 13

The answer is 13 :)

Hope this helped! If you have anymore questions or don't understand, please comment on my profile or DM me. :)

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Type the integer that makes the following addition sentence true: -5 + _ = -19

brilliants [131]

Answer:

-14

Step-by-step explanation:

6 0

3 years ago

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Are these ratios equivalent?<br> 1 teacher to 9 students<br> 5 teachers to 45 students

IrinaVladis [17]

Answer: yes the ratios 1:9 and 5:45 are equivalent.

Step-by-step explanation:

1:9*5:5=5:45

U got any more math questions that I can answer? I’m really bored and I have to stay busy!

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3 years ago

The number of kilograms of water in a human body varies directly as the mass of the body. An 87-kg person contains 58 kg of wat

katen-ka-za [31]

Answer:

50 kg water.

Step-by-step explanation:

We have been given that the number of kilograms of water in a human body varies directly as the mass of the body.

We know that two directly proportional quantities are in form $y=kx$ , where y varies directly with x and k is constant of variation.

We are told that an 87-kg person contains 58 kg of water. We can represent this information in an equation as:

$58=k\cdot 87$

Let us find the constant of variation as:

$\frac{58}{87}=\frac{k\cdot 87}{87}$

$\frac{29*2}{29*3}=k$

$\frac{2}{3}=k$

The equation $y=\frac{2}{3}x$ represents the relation between water (y) in a human body with respect to mass of the body (x).

To find the amount of water in a 75-kg person, we will substitute $x=75$ in our given equation and solve for y.

$y=\frac{2}{3}(75)$

$y=2(25)$

$y=50$

Therefore, there are 50 kg of water in a 75-kg person.

3 0

3 years ago

9 boys can paint a basketball court in 3 hours how long should 1 boy take working at the same rate

GaryK [48]

1 boy can work about 0.3 hours
i think that’s the answer,but good luck

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3 years ago

Which property is illustrated by the following statement?

kirza4 [7]

Associative property of addition

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3 years ago