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3 years ago

14

Alice and Jeremy weigh a cell phone on a digital scale. They write down 113 but forget to record the unit. Which unit of measure

ment is correct grams or kilograms? How do you know?

1 answer:

Oksana_A [137]3 years ago

4 0

Grams bcs if it was kg that would be really heavy and I've never heard of a cellphone that says that much

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3. In the figure below, find the values of x, y, and z.

Murrr4er [49]

Answer:

z= 13

x= 36

y= 18

Step-by-step explanation:

Solving for z.

We know that 108 degrees and (8z+4) are alternate exterior angles, so they are equal to each other.

We can set both of those angles equal to each other, and solve for our missing side, z.

108= 8z+4

104=8z

z= 13

Solving for x.

We know that 108 degrees and (3x) are alternate interior angles, so they would equal each other.

We can set both of these angles equal to each other, and solve for our missing side, x.

3x=108

x= 36

Solve for y.

We know that (4y) and (3x) are same side interior angles, so they would make 180 degrees. We know that (3x) would equal 108.

4y+108=180

4y= 72

y= 18

3 0

2 years ago

Rei is barricading a door to stop a horde of zombies. She stacks boxes of books on a table in front of the door. Each box weighs

Alinara [238K]

Answer: The answer is $\textup{W}=70+30x.$

Step-by-step explanation: Given that Rei is barricading a door to stop a horde of zombies by satcking boxes of books on a table in front of the door.

The weight of each box is 30 kilograms and the weight of the table with 8 boxes on the top is 310 kilograms.

So, if 'g' denotes the weight of the table alone, then we have

$\textup{g}+8\times 30=310\\\\\Rightarrow \textup{g}+240=310\\\\\Rightarrow \textup{g}=310-240\\\\\Rightarrow \textup{g}=70.$

Therefore, the weight of the table without boxes is 70 kilograms.

Now, if 'W' is the total weight of the barricade, then it can be written as a function of 'x', the number of boxes Rei stacks on the table. The expression is as follows -

$\textup{total weight of the barricade}=\textup{weight of the table alone}+30\times \textup{number of boxes}.$

Thus, the required function is

$\textup{W}=70+30x.$

6 0

3 years ago

Read 2 more answers

Which of the following are equivalent to the expression xi.? Select all that apply.

artcher [175]

Answer:

he answer is (2), (4) and (6).

Step-by-step explanation:

<em>Have a Great day!</em>

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3 0

3 years ago

If 1550 students voted but there were only 2000 eligible voters what percent of students voted

AURORKA [14]

To get that percentage you just need to divide 1550 by 200p:
1550/2000 = 0.775
Which means that only 77.5% of the students voted

I hope you understood my brief explanation. And please consider marking this awnser as Branliest. Thank you ! :)

6 0

3 years ago

The function below shows the number of car owners f(t), in thousands, in a city in different years t:

Alenkasestr [34]

The Average Rate of Change is the change of the function's value to the change in the variable t along some close interval

$f(t) = 1.1~t^2 - 2.5t + 1.5\\~\\f(5)=1.1~(5)^2 - 2.5(5) + 1.5=16.5\\~\\~\\f(3)=1.1~(3)^2 - 2.5(3) + 1.5=3.9\\~\\~\\ARC= \frac{f(5)-f(3)}{5-3} = \frac{16.5-3.9}{5-3} =6.3$

I hope that helps!

3 0

3 years ago