3 years ago

4*21 in algabra

Mathematics

2 answers:

Vika [28.1K]3 years ago

6 0

Answer:

Step-by-step explanation:

4 x 21=84

RideAnS [48]3 years ago

4 0

Answer:

I assume this means multiplication, so it would be 84.

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The equations 2 x minus 5 y = negative 5, 11 x minus 5 y = 15, 9 x + 5 y = 5, and 14 x + 5 y = negative 5 are shown on the graph

Dafna11 [192]

Answer:

See attached graph

Step-by-step explanation:

8 0

4 years ago

Can someone plz help me with this one problem!!!

AnnZ [28]

Answer:

yes; x=1; and 1 minus negative 5 turns into 1+5 therefore making y=6, which ultimately leads out to 6=1-(-5)

Step-by-step explanation:

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3 years ago

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This holiday weekend, Dave is going to Chicago to shop and see a baseball game. To avoid traffic, Dave decides to take the train

kondaur [170]

Answer:

k= 1 mile per minute

Step-by-step explanation:

There is a proportional relationship between the time (in minutes) Dave spends riding the train, x, and the distance he travels (in miles), y.

The table representing this information is given below:

$\left|\begin{array}{c|ccccc}$x (minutes) & 8 &10&13&14 \\$y (miles) & 8 &10&13&14 \end{array}\right|$

The equation of proportionality is given as: y=kx

When x=8, y=8

Substituting we have:

8=8k

Divide both sides by 8

k=1

Therefore, the constant of proportionality, k= 1 mile per minute

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4 years ago

Derek sees that a 24 foot flagpole casts a 10 foot shadow. At the same time of day, if a nearby tree casts

Lunna [17]

Answer:

60 ft.

Step-by-step explanation:

We can solve this problem with a simple proportion:

24 / 10 = h / 25

10h = 24 * 25

600 = 10h

60 ft. = h

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3 years ago

Find the slope of the line that passes through the points (1, 2) and (2, 5).

serious [3.7K]

Slope = (5 -2)/(2-1)
slope = 3

answer is <span>C) 3 </span>

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4 years ago