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Butoxors [25]
3 years ago
7

Which sentence explains the correct first step in the solution of this equation? 4(x−3)=94x-3=9?

Mathematics
2 answers:
Dima020 [189]3 years ago
7 0
Do Pemdas
P:Parenthesis
E:Exponent
M:Multiplication
D:Divide
A:Addition
S:Subtraction
qaws [65]3 years ago
6 0
Yes do pemdas and when it comes to addition and subtraction and division and multiplication if one of the other comes before each other you can do that so say division comes before multiplication you can divide first
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Y is directly proportional ( x+2)² <br> when x = 8 y= 250 <br> find y when x = 4​
sladkih [1.3K]

Answer:

y=90 when x=4

Step-by-step explanation:

We are given that

y\propto (x+2)^2

When x=8 and y=250

We have to find the value of y when x=4

y=k(x+2)^2

Where k= Proportionality constant

Substitute the values

250=k(8+2)^2

250=100k

k=\frac{250}{100}

k=5/2

Now, substitute x=4 and k=5/2

Then, we get

y=\frac{5}{2}(4+2)^2

y=\frac{5}{2}\times 36

y=90

8 0
3 years ago
In selling an antique vase for 80 a dealer made a profit of 60%of the cost price what was the cost price
pishuonlain [190]

Answer:

Step-by-step explanation:

cost price x .60 = 80

80/.60 = 133.33 was the cost price

8 0
3 years ago
The quotient of 20 and t ?
rosijanka [135]

the answer is \frac{20}{t}

5 0
2 years ago
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Whats the area of a quarter-circle with diameter of 4 meters
kkurt [141]
The answer is 3.14 m

The area (A) of the circle with radius r is: A = π · r²
The area of the quarter of the circle is: A1 = 1/4A = 1/4 · π · r²

We have:
A1 = ?
r = ?
π = 3.14
d = 4 m

A diameter d is the twice of the radius r: d = 2r.
Therefore, the radius is the half of the diameter: r = d/2
So, the area of the quarter circle would be:
A1 = 1/4 · π · r² = 1/4 · π · (d/2)² =1/4 · π · d²/2² = 1/4 · π · d²/4 = 1/16 · π · d²

A1 = 1/16 · π · d² = 1/16 · 3.14 · 4² = 1/16 · 3.14 · 16 = 3.14 m
5 0
3 years ago
Read 2 more answers
Simply the expression 2(3r+5)
Serjik [45]

Answer:

6r+10

Step-by-step explanation:

2 x 3r+2 x 5 = 6r +10

4 0
3 years ago
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