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zepelin [54]
2 years ago
6

The scale of a map is 1in:15miles. How many miles is it from Philadelphia, Pa to Boston, Ma if they are 20.4 inches apart on the

map?
Mathematics
1 answer:
cupoosta [38]2 years ago
4 0

Answer:

if 1in=15miles

then20.4in=? miles

1in by ? miles and 20.4in by 15miles

1in ? miles= 306in miles

divide both sides by 1in

? miles= 306 miles

therefore 20.4in = 306miles

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Nick buys 2 shirts and 4 hats for a total of 44.00.If the hats cost 5.00 each, how much does each shirt cost?
tensa zangetsu [6.8K]

If he bought 4 hats for $5 each and he spent a total of $44, he spent $44 - $20 in shirts.

44 - 20 = 24

2 shirts for $24 is 1 for 12

$12 for each shirt

Hope it helps :)

5 0
3 years ago
Read 2 more answers
Simplify completely<br> x2 + 4x - 45<br> and find the restrictions on the variable.
malfutka [58]

Answer:

(x-5)/(x+1) and x cannot equal -1 because the denominator can't be zero.

Step-by-step explanation:

Factor the numerator:

(x+9)(x-5)

Factor the denominator:

(x+1)(x+9)

So you have

(x+9)(x-5)/(x+1)(x+9); see that you can cross out the (x+9) in both the numerator and denominator?

You're left with (x-5)/(x+1)

The only number that is restricted is -1, because that would make the denominator zero, which is a no no!!

4 0
4 years ago
What’s the answer to this question ?
Dmitry [639]
Answer = 121°

Parallelograms’ angles are all equal. So the two given are equal.

6x + 13 = 7x - 5
x = 18

Plug x back into one of the original angles

6(18) + 13 = 121

Now we know all the angles are 121°, so that’s the answer
7 0
3 years ago
Read 2 more answers
If f.) = 2x2 + 1, what is f(x) when x = 3?
Dafna1 [17]

Answer:

19

Step-by-step explanation:

f(x) = 2x^2 +1

Let x =3

f(3) = 2 (3)^2 +1

     = 2 *9 +1

     = 18 +1

     = 19

5 0
4 years ago
A zoo keeper wants to fence a rectangular habitat for goats. The length of the habitat should be at least 80 feet, and the perim
MArishka [77]
<span>a. Write and graph a system of linear inequalities 
Here's the equation of a system of linear inequalities.
x >= 80
2x + 2y  <= 300 -----> y <= -x + 150

For the graph, it is attached as image.

</span>b. Write two possible solutions:<span>These are the two possible solutions to the given equation of linear inequality.

90 feet by 20 feet
110 feet by 30 feet.</span>

8 0
3 years ago
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