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3 years ago

Helppppppppppppppppppppppppppppppppp

Mathematics

2 answers:

leva [86]3 years ago

8 0

I think the answer is B

seraphim [82]3 years ago

5 0

Answer:

b. (1, 13).

Step-by-step explanation:

Here's a pic of my work. You can put either equation on the other side of the equal sign, because they both equal Y. therefore, they equal each other.

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a baby boy weights 7 lb 8 oz. A five year old weights 48 lb. write the ratio of the baby's weight to the boys weight as a fracti

inn [45]

Weight of baby boy , w = 7 lb 8 oz .

Weight of 5 year kid , W = 48 lb .

We know , 16 oz = 1 lb .

So , w = 7 + 0.5 = 7.5 lb .

Now , ratio is :

$R=\dfrac{7.5}{48}\\\\R=\dfrac{5}{32}$

Therefore , the ratio of the baby's weight to the boys weight as a fraction is

$\dfrac{5}{32}$ .

Hence , this is the required solution .

4 0

4 years ago

What is the value of 3 in 23

GuDViN [60]

3 is in the ones place. It's value is 3 ones or 3.

2 is in the tens place, so it's value is 2 tens or 20.

6 0

4 years ago

Read 2 more answers

Marco wrote the equation below.

vova2212 [387]

Answer:

It is true, because the cosine function has a period of 2π

Step-by-step explanation:

Since, the period of the cos function is 360° ( or 2π radians ), it holds the property of:

$Cos(\theta)=Cos(2\pi +\theta)$

Taking $\theta$ as $-\frac{\pi}{2}$ , $(2\pi + \theta)$ is equal to $2\pi + (-\frac{\pi}{2})\\=2\pi - \frac{\pi}{2}\\=\frac{4\pi-\pi}{2}\\=\frac{3\pi}{2}$

The equation is true!

<u>Note:</u> The cos function is even function

Hence, the equation is true, because the cosine function has a period of 2π, NOT because the cosine function is ODD, which it is not!!

6 0

3 years ago

The mass per unit volume of a substance is called __________.

astraxan [27]

Answer: Density

This measurement tells you how packed in a substance is. The higher the density, the more the object weighs for a certain volumetric unit (such as a cubic meter). Eg: a cubic meter of feathers is likely to weigh less than a cubic meter of solid gold because the feathers have a lot more air in them as opposed to the gold which is more compact.

density = mass/volume is the formula you often use

3 0

3 years ago

Holly fills a bucket with of a pound of confetti in of an hour. How much confetti could she fill the bucket with in 1 hour?

Snowcat [4.5K]

Answer:

one pound

Step-by-step explanation:

8 0

4 years ago