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3 years ago

To find the sum of 174 + 328, do you need to regroup once or twice? explain.

1 answer:

4 0

Twice because you will have to regroup with the 8+4 and when you carry to the tens place with the 7+2 which equals 9 but once you add the carrier it equals 10 so you have to carry to the hundreds place. Which then the 1+3=4 then add the carrier 4+1=5 and no more regrouping.

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Josef said the he could represent the amount of money he made last week with the expression: 24d+8n. Write a problem about the m

Doss [256]

Answer: what do you mean by a word problem?

Step-by-step explanation: 24 per hour = n times 10 hours = d so, 24(10)= $240

The second part of the equation -

8 hours = d times $20 per hour = n so, 8(20) = $160

$240+$160=$400 last week

5 0

3 years ago

A brick of aluminum weighs 19,745 grams and has the following dimensions: length 29 cm, height 15 cm, and width 51 mm. What is t

garri49 [273]

If the volume of the aluminum brick will be 2218.5 cubic cm. Then the approximate density of the aluminum will be 8.9 grams per cubic cm.

<h3>What is density?</h3>

Density is defined as the mass per unit volume. It is an important parameter in order to understand the fluid and its properties. Its unit is kg/m³.

The mass and density relation is given as

Density = mass/volume

A brick of aluminum weighs 19,745 grams and has the following dimensions: length 29 cm, height 15 cm, and width 51 mm.

Then the approximate density of the aluminum will be

The volume of the aluminum brick will be

V = 29 x 15 x 5.1

V = 2218.5 cubic cm

Then the density will be

D = 19,745 / 2218.5

D = 8.900 gram per cubic cm

To learn more about the density refer to the link;

brainly.com/question/952755

#SPJ1

3 0

2 years ago

Help me plz the answer is d right i dont reamber

Nat2105 [25]

Answer:

C. The total amount spent on drinks by Andrew.

Step-by-step explanation:

y itself would be the number of drinks purchased, and 2.5 is the cost. And since is is 2.5y then it represents the total amount.

8 0

3 years ago

A kite is 85 feet high with 100 feet of string let out. What is the angle of elevation of the string with the ground? Please sho

a_sh-v [17]

Answer:

58°

Step-by-step explanation:

A right triangle can be drawn to model the geometry of the problem. The hypotenuse of the triangle is the length of the string, 100 ft. The side opposite the angle is the height of the kite above the ground, 85 ft.

The mnemonic SOH CAH TOA reminds you of the relationship between sides and angles.

Sin = Opposite/Hypotenuse

sin(α) = (85 ft)/(100 ft) = 0.85

The angle whose sine is 0.85 is found using the arcsine (inverse sine) function:

α = arcsin(0.85) ≈ 58.2°

The angle of elevation is about 58°.

_____

When using your calculator to find the values of inverse trig functions, make sure it is in degrees mode. Otherwise, you're likely to get the answer in radians (≈ 1.01599 radians).

6 0

3 years ago

Find Lowest common factor of following questions . 56, 42, 28

Montano1993 [528]

Answer:

$\boxed{\textsf{ The LCM of 56 , 42 , 28 is \textbf{ 168}.}}$

Step-by-step explanation:

We need to find out the LCM of 56 , 42 , 28 . So Lowest Common Multiple known as LCM is the lowest multiple which is divisible by all the numbers whose LCM is taken out . It can we done by two methods. Both of which are discussed in the attachment .

For complete solution kindly refer to the attachment .

Related Information :- 

• HCF :-

It stands for Highest Common Factor . It is the highest numbers which divides out completely the numbers without leaving remainder of the numbers whose HCF is we are finding out .

3 0

3 years ago