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2 years ago

Can someone answer this please

Mathematics

1 answer:

Ulleksa [173]2 years ago

7 0

The scale used to make the model was 125 meters = 1 foot. 525 divided by 4.2 equals 125 meters.
The mode is 84 sheets of plywood tall.
4.2 feet = 50.4 meters
50.4 meters divided by 0.6 equals 84 sheets.

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I need the area of that rectangle

nexus9112 [7]

Answer:

21/40mm squared

Step-by-step explanation:

to find area you have to multiply length * width

7/8 * 3/5 = 21/40

Decimal form: 0.525

8 0

3 years ago

Read 2 more answers

Graph the set. in number line<br> (1, ∞) ∩ (−10, ∞)

svlad2 [7]

See attachment for the graph of the set (1, ∞) ∩ (−10, ∞)

<h3>How to graph the set on a number line?</h3>

The set is given as:

(1, ∞) ∩ (−10, ∞)

The above means that the numbers inclusive in the set are numbers between the following set:

(1, ∞): All real numbers greater than 1
(−10, ∞): All real numbers greater than -10

The intersection of the above set is (1, ∞)

This means that the set (1, ∞) ∩ (−10, ∞) is a set of all real numbers greater than 1

Having done the above illustration, next we plot the set on a number line

See attachment for the graph of the set (1, ∞) ∩ (−10, ∞)

Read more about number lines at:

brainly.com/question/24644930

#SPJ1

7 0

2 years ago

a boat travels upstream on the allegheny river for 2 hours. the return trip only takes 1.7 hours because the boat travels 2.5 mi

Gre4nikov [31]

To solve this we are going to use the speed equation: $S= \frac{d}{t}$
where
$S$ is speed
$d$ is distance
$t$ time

We know from our problem that the upstream trip takes 2 hours, so $t_{u}=2$ . We also know that the downstream trip takes 1.7 hours, so $t_{d}=1.7$ . Notice that the distance of both trips is the same, so we are going to use $d$ to represent that distance.
Now, lets use our equation to relate the quantities:

For the upstream trip:
$S_{u}= \frac{d}{t_{u} }$
$S_{u}= \frac{d}{2}$ equation (1)

For the downstream trip:
$S_{d}= \frac{d}{t_{d} }$
$S_{d}= \frac{d}{1.7}$ equation (2)

We know that the boat travels 2.5 miles per hour faster downstream, so the speed of the boat upstream will be the speed of the boat downstream minus 2.5 miles per hour:
$S_{u}=S_{d}-2.5$ equation (3)

Replacing (3) in (1):
$S_{u}= \frac{d}{2}$
$S_{d}-2.5= \frac{d}{2}$ equation (4)

Solving for $d$ in equation (2):
$S_{d}= \frac{d}{1.7}$
$d=1.7S_{d}$ equation (5)

Replacing (5) in (4):
$S_{d}-2.5= \frac{d}{2}$
$S_{d}-2.5= \frac{1.7S_{d}}{2}$
$2(S_{d}-2.5)=1.7S_{d}$
$2S_{d}-5=1.7S_{d}$
$0.3S_{d}=5$
$S__{d}= \frac{5}{0.3}$
$S_{d}= \frac{50}{3}$ equation (6)

Replacing (6) in (5)
$d=1.7S_{d}$
$d=1.7( \frac{50}{3} )$
$d= \frac{85}{3}$ miles

We can conclude that the boat travel $\frac{85}{3}$ , which is approximately 28.3 miles, in one way.

5 0

3 years ago

How to graph x>4 on the number line

dexar [7]

You draw a circle on top of 4, but don't fill it in, and then an arrow coming out of it and going to the right until the end of the number line. At least, that's how I'd do it, if this answer doesn't add up with what you've been doing in class then it's probably the wrong one

5 0

3 years ago

To sell paintings, Faith rents a stall at First Monday for $450. She

aalyn [17]

Answer:

Step-by-step explanation:

when she rents the stall then she is at a deficit of $450, when she then buys materials, she loses another $40. this means she starts out 490 in the whole and that 490 needs to be less then what she sells in order to make a profit. if it helps, she actually needs to sell 4 paintings. Hope i helped!!!!!!

6 0

3 years ago