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3 years ago

x-8/2=4 please help me asap this assignment is due in and hour! and please teach me how to do it! 10 points!!

Mathematics

2 answers:

r-ruslan [8.4K]3 years ago

8 0

Answer:

ok so u do the opposite of 8/2 so do 8*2 which is 16 then add the answer which is 4 which equals 20 so 20- 8/2=4, 20-16=4

8090 [49]3 years ago

7 0

Answer:

x = 8

Step-by-step explanation:

x - 8/2 = 4

Follow your order of operations and divide first.

8/2 is 4

x- 4 = 4

Next, isolate the variable by using the additive property of equality.

x - 4 + 4 = 4 + 4

x = 8

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The ratio of black marker in a box to blue markers in a box is 3:5. If there are 10 more blue markers than black markers,how man

fiasKO [112]

Answer:

$Total = 40$

Step-by-step explanation:

Given

$Black:Blue = 3:5$

$Blue = 10 + Black$

Required

Determine the total number of markers

First, we need to determine the ratio of black to blue such that

$Blue = 10 + Black$

$Black:Blue = 3:5$

Multiply the ratio by 5

$Black:Blue = 3 * 5 : 5 * 5$

$Black:Blue = 15 : 25$

By direct comparison:

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The above shows that:

$Blue = Black + 10$

So:

$Total = Black + Blue$

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3 years ago

The coordinate pairs for triangle ABC are A(1,2), B(4,5), C(2,2). It undergoes a translation of 2 units right and 1 unit 1 up. W

Bumek [7]

Answer:

a (2,4)

Step-by-step explanation:

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4 years ago

A motorboat travels 172 km in 3 hours going upstream and 372 in 4 hours going downstream. What is the rate of the boat in still

torisob [31]

Answer:

<em>The rate of the boat is 75.17 km/h and the rate of the stream is 17.83 km/h</em>

Step-by-step explanation:

<u>System of Equations</u>

Let's call:

B = speed (rate) of the boat in still water

S = speed (rate) of the stream

The boat travels 172 km in 3 hours when going upstream, that is when the speed of the stream subtracts its own speed. The speed is the distance divided by the time, thus:

$\displaystyle B-S=\frac{172}{3}$

Multiplying by 3:

3B - 3S = 172 [1]

The boat travels 372 km in 4 hours downstream when the speed of the current adds to its own:

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Solving for B:

B = 93 - S [2]

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279 - 3S - 3S = 172

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Subtracting 279:

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Multiplying by -1 and solving for S:

$S = \frac{107}{6}\approx 17.83\ km/h$

From [2]:

$B = 93 - \frac{107}{6}$

$B=\frac{451}{6}\approx 75.17\ km/h$

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3 years ago

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Answer:

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4 years ago

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Dafna11 [192]

Step-by-step explanation:

6) x+y=60

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7)distance walked by A = 4t

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3 years ago