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Masja [62]
2 years ago
11

Ayuda la tengo que entregar hoy

Mathematics
1 answer:
LenaWriter [7]2 years ago
4 0

Answer:

Step-by-step explanation:

1.6

2.30

3.?

4.60

5.84

6.330

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HELP WITH THIS EZ QUESTION
9966 [12]

Answer:

89

Step-by-step explanation:

3+75t-16t^{2} =h\\\\

we evaluate when t=2

3+75(2)-16(2)^2=h\\\\3+150-64=h\\\\h=89

so it's 89 feet

7 0
3 years ago
Read 2 more answers
Please help!! I don’t get it
Marrrta [24]

Answer:

Each hotdog costs $1.65

Each juice drink costs $1.05

Step-by-step explanation:

Let's begin by letting x represent the number of hot dogs and y the number of juice drinks.

The Baxter family bought 6 hot dogs and 4 juices for $14.10.

6x + 4y = 14.10

The Farley family bought 3 hot dogs and 4 juices for $9.15.

3x + 4y = 9.15

Now, we subtract these equations.

6x + 4y = 14.10\\- (3x + 4y = 9.15)

Since y has reversed coefficients, it gets eliminated. Now solve for x.

6x+4y-3x-4y=14.1-9.15\\3x = 4.95\\\frac{3x}{3} = \frac{4.95}{3}

\frac{4.95}{3} = 1.65

x = 1.65

NOW, we find y by substituting x with 1.65 (in either equation).

We'll use the first equation.

6x + 4y = 14.10

6(1.65) + 4y = 14.10

9.9 + 4y = 14.10\\4y = 14.1 - 9.9\\4y = 4.2

\frac{4y}{4} = \frac{4.2}{4} \\y = 1.05

x = 1.65

y = 1.05

x represents hotdogs and y represents juice drinks.

Therefore, each hotdog costs $1.65 and each juice drink costs $1.05.

<em> I hope this helps! :)</em>

6 0
3 years ago
Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels 16 miles per hou
Verizon [17]
We'll use variables to represent the speeds of the eastbound and westbound trains.

x will represent the speed of the eastbound train.
y will represent the speed of the westbound train.

The eastbound train is 16 mph faster than the westbound train. An equation can be made from this:

x  - y = 16

Subtraction is used, because it represents the difference in distances between the two trains if they travel the same direction.

After 4 hours, the trains are 800 miles apart. An equation can be made from this:

4x + 4y = 800

Addition is used, because the trains are heading in opposite directions, which means their distances from the starting point are added together.

Set the two equations up vertically:

x - y = 16
4x + 4y = 800

We will use elimination to solve for x.

Multiply the entire first equation by 4 so that the coefficients for y will be opposite numbers:

(x - y = 16) \times 4 = 4x - 4y = 64

4x - 4y = 64
4x + 4y = 800

Combine the two equations together to cancel out y:

8x = 864

Divide both sides by 8 to get x by itself:

x = 108

The speed of the eastbound train is 108 mph.
5 0
3 years ago
Write the smallest 4-digit numeral using 0,2,8, and 7
Sholpan [36]
Should be 0,2,7,8 i dont think you could go any lower
7 0
3 years ago
John wants to fence in a portion of his backyard. ... How many feet of fencing does john need to buy to enclose this area? ... H
Lelechka [254]
For this problem you need to find the area.
To find area, you multiply the width by the length.
You multiply 12 1/2 by 5 1/2 and you get 31 1/4
This is how you do it::

= 25/2 × 5/2

= (25 × 5) / (2 × 2)

= 125/4

= 125/4

<span>= 31 1/4

So you know that the area is 31 1/4 yards. 
In the question it asks HOW MANY FEET so we have to convert 31 1/4 yards to feet. 
1 yard= 3 feet
31 1/4 *3= </span><span>93.75
<span>John need to buy 93.75 feet of fencing to enclose the area.</span></span>
3 0
3 years ago
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