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3 years ago

Plz help timed test

Mathematics

1 answer:

Murrr4er [49]3 years ago

7 0

Answer:

125 times 125 is 15625

125 times 14/3 is 583.33333333

15625 ÷ 583.333333333 is about 25

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We can use the formula density mass over volume to find the density of a substance square metal plate has a density of 10.7 g of

sweet-ann [11.9K]

Answer: The volume of given substance is $2.2 cm^{3}$ .

Step-by-step explanation:

Given: Density = 10.7 $g/cm^{3}$

Mass = 23.54 g

Density of a substance is the mass of substance divided by its volume.

Mathematically, $Density = \frac{mass}{volume}$

Substitute the values into above formula to calculate volume as follows.

$Density = \frac{mass}{volume}\\10.7 g/cm^{3} = \frac{23.54 g}{volume}\\volume = \frac{23.54 g}{10.7 g/cm^{3}}\\= 2.2 cm^{3}$

Thus, we can conclude that the volume of given substance is $2.2 cm^{3}$ .

8 0

3 years ago

8. For questions 8-9, determine whether the two figures are similar. If so, give the scale factor of the smaller figure to the l

Vinvika [58]

Question 8:

Your choice is correct: two figures are similar if all correspondant sides are in the same ratio.

In your case, the figure on the right have correspondant sides which are all three times the figure on the left, since

$12 = 4\times 3, 21 = 7\times 3, 54 = 18\times 3$

So, the two figures are similar and their ratio is 1:3.

Question 9:

We follow exactly the same approach: let's see if the radii and the heights are in the same ratio: the radii are in ratio

$\cfrac{3.2}{2} = 1.6 = \cfrac{16}{10} = \cfrac{8}{5}$

While the heights are in ratio

$\cfrac{6.4}{4} = 1.6 = \cfrac{16}{10} = \cfrac{8}{5}$

So, the answer is again yes, they are similar, and the ratio is 1.6.

8 0

3 years ago

Read 2 more answers

Part A

OLEGan [10]

Part A: The algebraic equation for the situation is 2x - 3 = 5

Part B: Bob has 4 brand new music CD's

Step-by-step explanation:

Translate the situation into an algebraic equation:

Ann has 5 brand new music CD’s, which is 3 less than twice the amount that Bob (x) has
Find the value of x (the number of brand new CD's Bob has)

Part A:

∵ Bob has x brand new CD's

∵ Ann has 5 brand new music CD’s, which is 3 less than twice

the amount that Bob has

- That means multiply x by 2 and then subtract 3 from the product

and equate the answer by 5

∵ Twice x 2x

∵ 3 less than twice x = 2x - 3

∴ 2x - 3 = 5

The algebraic equation for the situation is 2x - 3 = 5

Part B:

Let us solve the equation to find the value of x

∵ 2x - 3 = 5

- Add 3 to both sides

∴ 2x = 8

- Divide both sides by 2

∴ x = 4

Bob has 4 brand new music CD's

Learn more:

You can learn more about the algebraic expressions in brainly.com/question/1600376

#LearnwithBrainly

5 0

4 years ago

PLZ HURRY!! WILL GIVE BRAINLYEST!!!

Viktor [21]

I think it is the first one even though none of them make since to me

5 0

3 years ago

Sam and Nancy were divorced on September 21, 2017. Neither has any dependents. Neither has remarried. The correct filing status

ivanzaharov [21]

Answer:

Sam and Nancy will keep using married on their status until after December of the same year before they can start using divorced. status is being considered for the whole year cycle

Step-by-step explanation:

7 0

4 years ago