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Elena L [17]
3 years ago
10

Jack's mother gave him 50 chocolates to give to his friends at his birthday party. He gave 3 chocolates to

Mathematics
1 answer:
slega [8]3 years ago
4 0

Answer:

3x + 2 = 50

Explanation:

let's represent the number of friends jack has by x.

since he gave three chocolates to each of his friends, that would be 3x chocolates in total. then, we have to factor in the remaining 2 chocolates. this gives us <u>3x + 2 = 50</u>.

i hope this helps! :D

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Tony is pouring milk for student lunches. She knows that 3 quarts of milk contain 12 cups. How many cups can she pour with 7 qua
Evgesh-ka [11]

Answer:

7 quarts = 28 cups

10 cups = 2.5 quarts

Step-by-step explanation:

In order to solve the two different questions in the problem, starting with a ratio of the number of quarts to the number of cups would be helpful:

\frac{quarts}{cups}=\frac{3}{12}=\frac{1}{4}

So, for every 1 quart of milk, she can pour 4 cups.  Using this ratio, we can set up equivalent ratios, or proportions, to solve for the missing value.  For the first question, we need to know that amount of cups in 7 quarts:

\frac{1}{4}=\frac{7}{x}

We can solve for 'x' by multiplying the numerator and denominator by the same factor, in this case '7'.  So, 4 x 7 = 28 cups.

Next, we need to solve for the amount of quarts needed for 10 cups:

\frac{1}{4}=\frac{x}{10}

4 x 2.5 = 10, so we need to multiply the numerator by 2.5: 1 x 2.5 = 2.5 quarts.

5 0
3 years ago
A surveyor measured the angle of elevation of a flat spire as 15 degree from a point in horizontal group.He movrs 30m nearer to
frozen [14]

Answer:

11.28m

Step-by-step explanation:

The computation of the height of the spire is shown below:

let us assume the height of the spire be x

Now

For triangle ABD

Tan 43 degrees = h ÷ x

x = h × cot 43 degrees

= 1.07236 h

For triangle ABC

tan 15 degrees = h ÷ (30 + x)

0.2679 = h ÷ 30 + 1.07236h

8.038 + 0.28728 h = h

h = 11.28m

8 0
3 years ago
What do I for for c? PLEASE HELP
ira [324]
Just draw one empty circle for 1 and then a filled circle for -1 so then it's 1-1 which equals 0
5 0
3 years ago
The __________ completed the united states’ “manifest destiny.
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Louisiana purchase it completed it because it bought a bunch of land that spread from coast to coast
3 0
3 years ago
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A car's wheels spins at 1000 revolutions per minute. The diameter of the wheels is 23 inches. You want to know how fast the car
ch4aika [34]

Answer:

72,220 inches per  minute

Step-by-step explanation:

A car's wheels spins at 1000 revolutions per minute. The diameter of the wheels is 23 inches.

1 revolution = 2\pi radians

\frac{theta}{tome}=\frac{1000 \ revolution}{1 \ minuite} = \frac{1000* 2\pi }{1} =\frac{2000\pi}{1 \ minute}

Speed V= \frac{r*theta}{t}

r is the radius , theta is the angle and t is the time

We know diameter = 23  , then radius = 23/2

Speed V= \frac{23}{2}*\frac{2000\pi}{1}

Value of pi = 3.14

speed = 23000* 3.14= 72220 inches/ minute


3 0
3 years ago
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