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timofeeve [1]
3 years ago
12

Stefanie is painting her bedroom. She can paint 12 square feet in of an hour. How many square feet can she paint in one

Mathematics
1 answer:
Marysya12 [62]3 years ago
4 0
To find how many square feet Stefanie can paint in one hour, divide the number of square feet by the fraction of an hour: 12 2/3 divided by 2/5 = 38/3 divided by 2/5. =31 2/3
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Solve the system of equations for x and y.<br> y = x + 5<br> y = 2x + 2
DIA [1.3K]
Answer (x,y) (3, -2)

Explanation:
using the
substitution method
y
=
x
−
5
→
(
1
)
y
=
−
2
x
+
4
→
(
2
)
since both equations are expressed in terms of x we

can equate them
⇒
x
−
5
=
−
2
x
+
4
add 2x to both sides
2
x
+
x
−
5
=
−
2
x
+
2
x
+
4
⇒
3
x
−
5
=
4
add 5 from both sides
3
x
+
5
−
5
=
4
+
5
⇒
3
x
=
9
divide both sides by 3
3
x
3
=
9
3
⇒
x
=
3
substitute this value in
(
1
)
y
=
3
−
5
=
−
2
As a check
substitute these values into
(
2
)
right
=
−
6
+
4
=
−
2
=
left
⇒
point of intersection
=
(
3
,
−
2
)
3 0
3 years ago
HELP PLEASE!<br><br><br> What is the coefficient of the term of degree 4 in this polynomial below?
Eddi Din [679]

Answer:

2

Step-by-step explanation:

The term of degree 4 is the term with the exponent of 4

2x^4

The coefficient is the number out in front

2x^4 has a coefficient of 2

8 0
3 years ago
Read 2 more answers
Someone please answer i need your help!!
aev [14]

Answer: there you go

Step-by-step explanation:

8 0
3 years ago
Which answer choice shows the decimals in order from least to greatest?
MrMuchimi
I believe the answer is D. 1.121, 1.21, 1.432, 1.53
8 0
3 years ago
Express x^2+4x-7 in the form (x+a)^2-b where a and b are integers
lukranit [14]

Answer:

(x + 2)^2 - 11.

Step-by-step explanation:

f(x) = x^2 + 4x - 7

Now x^2 + 4x = (x + 2)^2 - 4 so we have:

f(x) = (x + 2)^2 - 4 - 7

f(x) = (x + 2)^2 - 11.

4 0
3 years ago
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